![\"Flash](\"https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Flash-of-Unstyled-Content-1024x535.jpg\")
<\/figure>\n\n\n\n<\/div>\n\n\n\n<\/span>What is FOUC (Flash of Unstyled Content)?<\/span><\/h2>\n\n\n\n
When you load a webpage, first you will see an unstyled webpage for a few moments instead of your actual webpage. Here we will discuss FOUC (Flash of Unstyled Content), break down the reason behind this FOUC, and explore 3 strategies to fix this error. <\/p>\n\n\n\n
<\/span>What is FOUC (Flash of Unstyled Content)?<\/span><\/h2>\n\n\n\nFOUC (Flash of Unstyled Content) occurs when the browser renders your unstyled webpage for a moment before rendering the actual one. This issue can be encountered when the browser renders your HTML content before loading your CSS stylesheets. <\/p>\n\n\n\n
In simple words, when your web page briefly displays the content without applying any style. <\/p>\n\n\n\n
<\/span>The Reason Behind the FOUC <\/span><\/h2>\n\n\n\nBefore fixing this FOUC (Flash of Unstyled Content) problem, you need to know the possible reasons behind it. Here, we are going to discuss several reasons for this FOUC issue.<\/p>\n\n\n\n
\n- FOUC Happens Due to the Asynchronous Loading of Your CSS Stylesheets <\/strong><\/li>\n<\/ol>\n\n\n\n
When your CSS file is not loading at the same time as your HTML, it can encounter a flash of unstyled content. In this case, the CSS files are loaded asynchronously to boost your web page loading time. Thus, HTML content is visible before applying CSS styles.<\/p>\n\n\n\n
<\/div>\n\n\n\n\n\n\n \n \n Document<\/title>\n <style>\n body {\n font-family: Arial, Helvetica, sans-serif;\n }\n .main-card-for-some {\n background-color: #e9f3ff;\n border-radius: 0.375rem;\n height: 350px;\n width: 600px;\n text-align: center;\n display: flex;\n justify-content: center;\n align-items: center;\n }\n .heading-card {\n font-size: 1.60rem;\n font-weight: 600;\n letter-spacing: 0.025em;\n line-height: 2rem;\n }\n .up-mt-1 {\n margin-top: 3.564587rem;\n margin-bottom: 2.75rem;\n }\n .btn-blue {\n font-size: 1rem;\n line-height: 1rem;\n font-weight: bold;\n background-color: rgb(37 99 235);\n color: white !important;\n padding-left: 1.5rem;\n padding-right: 1.5rem;\n margin-top: 1rem;\n border-radius: 0.25rem;\n padding-top: 0.75rem;\n padding-bottom: 0.75rem;\n border: 0;\n text-decoration:none !important;\n }\n \n .btn-blue:hover{\n \tbackground-color: rgb(30 64 175);\n }\n\n .card-caption-body {\n display: flex;\n font-size: 0.75rem;\n line-height: 1rem;\n justify-content: space-evenly;\n margin-top: 1.5rem;\n font-weight: 300;\n column-gap:1.0rem;\n }\n\n .card-caption-text {\n display: flex;\n column-gap: 0.5rem;\n align-items: center;\n }\n <\/style>\n<\/head>\n<body>\n<main style=\"display:flex;justify-content:center;\">\n <div class=\"main-card-for-some\">\n <div>\n <p class=\"heading-card\">Get The Best PageSpeed Score <br>For Your WordPress Website<\/p>\n <div class=\"up-mt-1\">\n <a href=\"https:\/\/linke.to\/ke3PO\" class=\"btn-blue\">Install Now<\/a>\n <\/div>\n <div class=\"card-caption-body\">\n <div class=\"card-caption-text\">\n <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" x=\"0px\" y=\"0px\" width=\"10\" height=\"10\" viewBox=\"0,0,256,256\">\n <g fill=\"#007CFE\" fill-rule=\"nonzero\" stroke=\"none\" stroke-width=\"1\" stroke-linecap=\"butt\" stroke-linejoin=\"miter\" stroke-miterlimit=\"10\" stroke-dasharray=\"\" stroke-dashoffset=\"0\" font-family=\"none\" font-weight=\"none\" font-size=\"none\" text-anchor=\"none\" style=\"mix-blend-mode: normal\"><g transform=\"scale(8.53333,8.53333)\"><path d=\"M26.98047,5.99023c-0.2598,0.00774 -0.50638,0.11632 -0.6875,0.30273l-15.29297,15.29297l-6.29297,-6.29297c-0.25082,-0.26124 -0.62327,-0.36647 -0.97371,-0.27511c-0.35044,0.09136 -0.62411,0.36503 -0.71547,0.71547c-0.09136,0.35044 0.01388,0.72289 0.27511,0.97371l7,7c0.39053,0.39037 1.02353,0.39037 1.41406,0l16,-16c0.29576,-0.28749 0.38469,-0.72707 0.22393,-1.10691c-0.16075,-0.37985 -0.53821,-0.62204 -0.9505,-0.60988z\"><\/path><\/g><\/g>\n <\/svg>\n All in One Optimization Plugin\n <\/div>\n <div class=\"card-caption-text\">\n <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" x=\"0px\" y=\"0px\" width=\"10\" height=\"10\" viewBox=\"0,0,256,256\">\n <g fill=\"#007CFE\" fill-rule=\"nonzero\" stroke=\"none\" stroke-width=\"1\" stroke-linecap=\"butt\" stroke-linejoin=\"miter\" stroke-miterlimit=\"10\" stroke-dasharray=\"\" stroke-dashoffset=\"0\" font-family=\"none\" font-weight=\"none\" font-size=\"none\" text-anchor=\"none\" style=\"mix-blend-mode: normal\"><g transform=\"scale(8.53333,8.53333)\"><path d=\"M26.98047,5.99023c-0.2598,0.00774 -0.50638,0.11632 -0.6875,0.30273l-15.29297,15.29297l-6.29297,-6.29297c-0.25082,-0.26124 -0.62327,-0.36647 -0.97371,-0.27511c-0.35044,0.09136 -0.62411,0.36503 -0.71547,0.71547c-0.09136,0.35044 0.01388,0.72289 0.27511,0.97371l7,7c0.39053,0.39037 1.02353,0.39037 1.41406,0l16,-16c0.29576,-0.28749 0.38469,-0.72707 0.22393,-1.10691c-0.16075,-0.37985 -0.53821,-0.62204 -0.9505,-0.60988z\"><\/path><\/g><\/g>\n <\/svg>\n No Coding Knowledge Required\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n<\/main>\n<\/body>\n<\/html>\n\n\n\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li><strong>Your Render-Blocking Resources Can Encounter FOUC<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Usually, render-blocking resources such as fonts, JavaScript, and large-sized media files can delay or block your webpage\u2019s rendering process as well as the loading of CSS stylesheets. Thus, your web page\u2019s content will be rendered without any style. <\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li><strong>FOUC Occurs Due to Delaying of JavaScript Execution<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Managing your web page content\u2019s style through JavaScript files (CSS-in-JS libraries or inline script manipulation) can cause a flash of unstyled content issues because the web browser needs to parse and download the JavaScript file <\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_ways_to_fix_this_fouc_issue\"><\/span>5 Ways to Fix This FOUC Issue<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Now that you know the reason behind the FOUC issue, you will see how easily you can solve it by implementing the strategies below.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"preload_your_critical_resources\"><\/span><strong>Preload Your Critical Resources<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Use <link rel=\u2019preload\u2019> in your HTML file\u2019s <head> to ensure that your critical resources are available as soon as possible. This <link rel=\u2019preload\u2019> tag instructs the web browsers on the priority of these critical resources when your web page is loading. <\/p>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"535\" src=\"https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Preload-Critical-Resources-1024x535.jpg\" alt=\"Preload Critical Resources\" class=\"wp-image-2785\" srcset=\"https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Preload-Critical-Resources-1024x535.jpg 1024w, https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Preload-Critical-Resources-300x157.jpg 300w, https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Preload-Critical-Resources-768x401.jpg 768w, https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Preload-Critical-Resources.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>When you use RabbitLoader, it will automatically identify your website\u2019s critical resources and set a high fetch priority for them. You don\u2019t need to put any extra effort into this.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"inline_your_critical_css_in_your_html_file\"><\/span><strong>Inline Your Critical CSS in Your HTML File<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"535\" src=\"https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Inline-Critical-CSS-in-HTML-File-1024x535.jpg\" alt=\"Inline Critical CSS in HTML File\" class=\"wp-image-2786\" srcset=\"https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Inline-Critical-CSS-in-HTML-File-1024x535.jpg 1024w, https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Inline-Critical-CSS-in-HTML-File-300x157.jpg 300w, https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Inline-Critical-CSS-in-HTML-File-768x401.jpg 768w, https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Inline-Critical-CSS-in-HTML-File.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>You need to inline your critical CSS rules directly into your HTML file to render the webpage without any flash of unstyled content issues. By inlining your critical CSS into an HTML file, you can ensure that your essential files are loaded with your HTML content.<\/p>\n\n\n\n<p><strong>The syntax for inline style:<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code language-html\"><code><html>\n\n<head>\n\n<style>\n\nbody {\n\n background-color: linen;\n\n}\n\nh1 {\n\n color: maroon;\n\n margin-left: 40px;\n\n}\n\n<\/style>\n\n<\/head> <\/html><\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"minimize_render-blocking_resources\"><\/span><strong>Minimize Render-Blocking Resources<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>As mentioned earlier, render-blocking resources are the most common reason for this flash of unstyled content issues. To prevent this you need to reduce your render blocking resources as much as possible. <\/p>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n <meta charset=\"UTF-8\">\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n <title>Document<\/title>\n <style>\n body {\n font-family: Arial, Helvetica, sans-serif;\n }\n .main-card-for-some {\n background-color: #e9f3ff;\n border-radius: 0.375rem;\n height: 350px;\n width: 600px;\n text-align: center;\n display: flex;\n justify-content: center;\n align-items: center;\n }\n .heading-card {\n font-size: 1.60rem;\n font-weight: 600;\n letter-spacing: 0.025em;\n line-height: 2rem;\n }\n .up-mt-1 {\n margin-top: 3.564587rem;\n margin-bottom: 2.75rem;\n }\n .btn-blue {\n font-size: 1rem;\n line-height: 1rem;\n font-weight: bold;\n background-color: rgb(37 99 235);\n color: white !important;\n padding-left: 1.5rem;\n padding-right: 1.5rem;\n margin-top: 1rem;\n border-radius: 0.25rem;\n padding-top: 0.75rem;\n padding-bottom: 0.75rem;\n border: 0;\n text-decoration:none !important;\n }\n \n .btn-blue:hover{\n \tbackground-color: rgb(30 64 175);\n }\n\n .card-caption-body {\n display: flex;\n font-size: 0.75rem;\n line-height: 1rem;\n justify-content: space-evenly;\n margin-top: 1.5rem;\n font-weight: 300;\n column-gap:1.0rem;\n }\n\n .card-caption-text {\n display: flex;\n column-gap: 0.5rem;\n align-items: center;\n }\n <\/style>\n<\/head>\n<body>\n<main style=\"display:flex;justify-content:center;\">\n <div class=\"main-card-for-some\">\n <div>\n <p class=\"heading-card\">Get The Best PageSpeed Score <br>For Your WordPress Website<\/p>\n <div class=\"up-mt-1\">\n <a href=\"https:\/\/linke.to\/ke3PO\" class=\"btn-blue\">Install Now<\/a>\n <\/div>\n <div class=\"card-caption-body\">\n <div class=\"card-caption-text\">\n <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" x=\"0px\" y=\"0px\" width=\"10\" height=\"10\" viewBox=\"0,0,256,256\">\n <g fill=\"#007CFE\" fill-rule=\"nonzero\" stroke=\"none\" stroke-width=\"1\" stroke-linecap=\"butt\" stroke-linejoin=\"miter\" stroke-miterlimit=\"10\" stroke-dasharray=\"\" stroke-dashoffset=\"0\" font-family=\"none\" font-weight=\"none\" font-size=\"none\" text-anchor=\"none\" style=\"mix-blend-mode: normal\"><g transform=\"scale(8.53333,8.53333)\"><path d=\"M26.98047,5.99023c-0.2598,0.00774 -0.50638,0.11632 -0.6875,0.30273l-15.29297,15.29297l-6.29297,-6.29297c-0.25082,-0.26124 -0.62327,-0.36647 -0.97371,-0.27511c-0.35044,0.09136 -0.62411,0.36503 -0.71547,0.71547c-0.09136,0.35044 0.01388,0.72289 0.27511,0.97371l7,7c0.39053,0.39037 1.02353,0.39037 1.41406,0l16,-16c0.29576,-0.28749 0.38469,-0.72707 0.22393,-1.10691c-0.16075,-0.37985 -0.53821,-0.62204 -0.9505,-0.60988z\"><\/path><\/g><\/g>\n <\/svg>\n All in One Optimization Plugin\n <\/div>\n <div class=\"card-caption-text\">\n <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" x=\"0px\" y=\"0px\" width=\"10\" height=\"10\" viewBox=\"0,0,256,256\">\n <g fill=\"#007CFE\" fill-rule=\"nonzero\" stroke=\"none\" stroke-width=\"1\" stroke-linecap=\"butt\" stroke-linejoin=\"miter\" stroke-miterlimit=\"10\" stroke-dasharray=\"\" stroke-dashoffset=\"0\" font-family=\"none\" font-weight=\"none\" font-size=\"none\" text-anchor=\"none\" style=\"mix-blend-mode: normal\"><g transform=\"scale(8.53333,8.53333)\"><path d=\"M26.98047,5.99023c-0.2598,0.00774 -0.50638,0.11632 -0.6875,0.30273l-15.29297,15.29297l-6.29297,-6.29297c-0.25082,-0.26124 -0.62327,-0.36647 -0.97371,-0.27511c-0.35044,0.09136 -0.62411,0.36503 -0.71547,0.71547c-0.09136,0.35044 0.01388,0.72289 0.27511,0.97371l7,7c0.39053,0.39037 1.02353,0.39037 1.41406,0l16,-16c0.29576,-0.28749 0.38469,-0.72707 0.22393,-1.10691c-0.16075,-0.37985 -0.53821,-0.62204 -0.9505,-0.60988z\"><\/path><\/g><\/g>\n <\/svg>\n No Coding Knowledge Required\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n<\/main>\n<\/body>\n<\/html>\n\n\n\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>These render-blocking resources can be your Javascript files, non-critical CSS stylesheets, font, and HTML files.<\/p>\n\n\n\n<p><strong>RabbitLoader <\/strong>eliminates your <a href=\"https:\/\/rabbitloader.com\/articles\/eliminate-render-blocking-resources\/\">render-blocking resources<\/a> to prevent flash of unstyled content and unstyled text by following the below strategies:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Generating critical CSS and deferring non-critical CSS<\/li>\n\n\n\n<li>Using defer and async attributes in your render-blocking JavaScript files<\/li>\n\n\n\n<li>Minifying your CSS and JavaScript files<\/li>\n\n\n\n<li>set a high fetch priority for your critical resources<\/li>\n\n\n\n<li>Identify and remove your unused CSS and JavaScript files.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"optimize_your_image_size\"><\/span><strong>Optimize Your Image Size<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Though images are the greatest way to convey your messages easily, large-sized images can be the biggest enemy of your website during web page loading time. By optimizing the image size, you can reduce this FOUC error.<\/p>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"535\" src=\"https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Optimize-Image-Size-1024x535.jpg\" alt=\"Optimize Image Size\" class=\"wp-image-2787\" srcset=\"https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Optimize-Image-Size-1024x535.jpg 1024w, https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Optimize-Image-Size-300x157.jpg 300w, https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Optimize-Image-Size-768x401.jpg 768w, https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Optimize-Image-Size.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>RabbitLoader will convert all your large-sized PNG and IMG images to the <a href=\"https:\/\/rabbitloader.com\/articles\/next-gen-format\">modern WebP and AVIF format<\/a> putting any extra effort and cost. It compresses your all images losslessly (without decreasing their quality) with its bulk optimization features. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"utilize_server-side_rendering_ssr_you_can_prevent_fouc\"><\/span><strong>Utilize Server-Side Rendering (SSR) You Can Prevent FOUC<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>The server-side rendering indicates that the content of your web page will be displayed on the server side rather than displayed in your user\u2019s browser like <a href=\"https:\/\/www.google.com\/chrome\/\">Google Chrome<\/a> or Internet Explorer. <\/p>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"535\" src=\"https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Server-Side-Rendering-1024x535.jpg\" alt=\"Server Side Rendering\" class=\"wp-image-2788\" srcset=\"https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Server-Side-Rendering-1024x535.jpg 1024w, https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Server-Side-Rendering-300x157.jpg 300w, https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Server-Side-Rendering-768x401.jpg 768w, https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Server-Side-Rendering.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>By implementing server side rendering(SSR) you can generate fully styled HTML content before sending it to your visitor. This can eliminate the flash of unstyled content on your website.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>In the above, you have learned about FOUC (Flash of Unstyled Content). Also, you have explored the 3 most common reasons behind this issue such as asynchronous loading of your CSS stylesheets, your render-blocking resources, and delaying of JavaScript Execution.<\/p>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n <meta charset=\"UTF-8\">\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n <title>Document<\/title>\n <style>\n body {\n font-family: Arial, Helvetica, sans-serif;\n }\n .main-card-for-some {\n background-color: #e9f3ff;\n border-radius: 0.375rem;\n height: 350px;\n width: 600px;\n text-align: center;\n display: flex;\n justify-content: center;\n align-items: center;\n }\n .heading-card {\n font-size: 1.60rem;\n font-weight: 600;\n letter-spacing: 0.025em;\n line-height: 2rem;\n }\n .up-mt-1 {\n margin-top: 3.564587rem;\n margin-bottom: 2.75rem;\n }\n .btn-blue {\n font-size: 1rem;\n line-height: 1rem;\n font-weight: bold;\n background-color: rgb(37 99 235);\n color: white !important;\n padding-left: 1.5rem;\n padding-right: 1.5rem;\n margin-top: 1rem;\n border-radius: 0.25rem;\n padding-top: 0.75rem;\n padding-bottom: 0.75rem;\n border: 0;\n text-decoration:none !important;\n }\n \n .btn-blue:hover{\n \tbackground-color: rgb(30 64 175);\n }\n\n .card-caption-body {\n display: flex;\n font-size: 0.75rem;\n line-height: 1rem;\n justify-content: space-evenly;\n margin-top: 1.5rem;\n font-weight: 300;\n column-gap:1.0rem;\n }\n\n .card-caption-text {\n display: flex;\n column-gap: 0.5rem;\n align-items: center;\n }\n <\/style>\n<\/head>\n<body>\n<main style=\"display:flex;justify-content:center;\">\n <div class=\"main-card-for-some\">\n <div>\n <p class=\"heading-card\">Get The Best PageSpeed Score <br>For Your WordPress Website<\/p>\n <div class=\"up-mt-1\">\n <a href=\"https:\/\/linke.to\/ke3PO\" class=\"btn-blue\">Install Now<\/a>\n <\/div>\n <div class=\"card-caption-body\">\n <div class=\"card-caption-text\">\n <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" x=\"0px\" y=\"0px\" width=\"10\" height=\"10\" viewBox=\"0,0,256,256\">\n <g fill=\"#007CFE\" fill-rule=\"nonzero\" stroke=\"none\" stroke-width=\"1\" stroke-linecap=\"butt\" stroke-linejoin=\"miter\" stroke-miterlimit=\"10\" stroke-dasharray=\"\" stroke-dashoffset=\"0\" font-family=\"none\" font-weight=\"none\" font-size=\"none\" text-anchor=\"none\" style=\"mix-blend-mode: normal\"><g transform=\"scale(8.53333,8.53333)\"><path d=\"M26.98047,5.99023c-0.2598,0.00774 -0.50638,0.11632 -0.6875,0.30273l-15.29297,15.29297l-6.29297,-6.29297c-0.25082,-0.26124 -0.62327,-0.36647 -0.97371,-0.27511c-0.35044,0.09136 -0.62411,0.36503 -0.71547,0.71547c-0.09136,0.35044 0.01388,0.72289 0.27511,0.97371l7,7c0.39053,0.39037 1.02353,0.39037 1.41406,0l16,-16c0.29576,-0.28749 0.38469,-0.72707 0.22393,-1.10691c-0.16075,-0.37985 -0.53821,-0.62204 -0.9505,-0.60988z\"><\/path><\/g><\/g>\n <\/svg>\n All in One Optimization Plugin\n <\/div>\n <div class=\"card-caption-text\">\n <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" x=\"0px\" y=\"0px\" width=\"10\" height=\"10\" viewBox=\"0,0,256,256\">\n <g fill=\"#007CFE\" fill-rule=\"nonzero\" stroke=\"none\" stroke-width=\"1\" stroke-linecap=\"butt\" stroke-linejoin=\"miter\" stroke-miterlimit=\"10\" stroke-dasharray=\"\" stroke-dashoffset=\"0\" font-family=\"none\" font-weight=\"none\" font-size=\"none\" text-anchor=\"none\" style=\"mix-blend-mode: normal\"><g transform=\"scale(8.53333,8.53333)\"><path d=\"M26.98047,5.99023c-0.2598,0.00774 -0.50638,0.11632 -0.6875,0.30273l-15.29297,15.29297l-6.29297,-6.29297c-0.25082,-0.26124 -0.62327,-0.36647 -0.97371,-0.27511c-0.35044,0.09136 -0.62411,0.36503 -0.71547,0.71547c-0.09136,0.35044 0.01388,0.72289 0.27511,0.97371l7,7c0.39053,0.39037 1.02353,0.39037 1.41406,0l16,-16c0.29576,-0.28749 0.38469,-0.72707 0.22393,-1.10691c-0.16075,-0.37985 -0.53821,-0.62204 -0.9505,-0.60988z\"><\/path><\/g><\/g>\n <\/svg>\n No Coding Knowledge Required\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n<\/main>\n<\/body>\n<\/html>\n\n\n\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>If you are struggling with this FOUC issue on your website, you must follow the above strategies and install RabbitLoader to effortlessly fix your FOUC issue and improve your website\u2019s visibility as well as user experience. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>As a website owner, you often encounter FOUC (Flash of Unstyled Content) issues. These issues negatively impact your website\u2019s performance and user experience. When you load a webpage, first you will see an unstyled webpage for a few moments instead of your actual webpage. Here we will discuss FOUC (Flash of Unstyled Content), break down […]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[460,459,462,463,461],"class_list":["post-2778","post","type-post","status-publish","format-standard","hentry","category-wordpress","tag-flash-of-unstyled-content","tag-fouc","tag-fouc-issue","tag-how-to-solve-fouc","tag-performance"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is FOUC, and the 5 Most Effective Ways to Fix This Issue on Your Web Pages?<\/title>\n<meta name=\"description\" content=\"As a website owner, you often encounter FOUC (Flash of Unstyled Content) issues. These issues negatively impact your website\u2019s performance...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/rabbitloader.com\/articles\/fouc\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is FOUC, and the 5 Most Effective Ways to Fix This Issue on Your Web Pages?\" \/>\n<meta property=\"og:description\" content=\"As a website owner, you often encounter FOUC (Flash of Unstyled Content) issues. These issues negatively impact your website\u2019s performance...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/rabbitloader.com\/articles\/fouc\/\" \/>\n<meta property=\"og:site_name\" content=\"RabbitLoader\" \/>\n<meta property=\"article:published_time\" content=\"2024-09-14T11:52:44+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-01-27T15:42:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Flash-of-Unstyled-Content-1024x535.jpg\" \/>\n<meta name=\"author\" content=\"Sonju Ghosh\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Sonju Ghosh\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/rabbitloader.com\/articles\/fouc\/\",\"url\":\"https:\/\/rabbitloader.com\/articles\/fouc\/\",\"name\":\"What is FOUC, and the 5 Most Effective Ways to Fix This Issue on Your Web Pages?\",\"isPartOf\":{\"@id\":\"https:\/\/rabbitloader.com\/articles\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/rabbitloader.com\/articles\/fouc\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/rabbitloader.com\/articles\/fouc\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Flash-of-Unstyled-Content-1024x535.jpg\",\"datePublished\":\"2024-09-14T11:52:44+00:00\",\"dateModified\":\"2025-01-27T15:42:57+00:00\",\"author\":{\"@id\":\"https:\/\/rabbitloader.com\/articles\/#\/schema\/person\/989c1fc1b0731c57624806de5cd06e53\"},\"description\":\"As a website owner, you often encounter FOUC (Flash of Unstyled Content) issues. 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Before fixing this FOUC (Flash of Unstyled Content) problem, you need to know the possible reasons behind it. Here, we are going to discuss several reasons for this FOUC issue.<\/p>\n\n\n\n
- \n
- FOUC Happens Due to the Asynchronous Loading of Your CSS Stylesheets <\/strong><\/li>\n<\/ol>\n\n\n\n
When your CSS file is not loading at the same time as your HTML, it can encounter a flash of unstyled content. In this case, the CSS files are loaded asynchronously to boost your web page loading time. Thus, HTML content is visible before applying CSS styles.<\/p>\n\n\n\n
<\/div>\n\n\n\n\n\n\n \n \nDocument<\/title>\n <style>\n body {\n font-family: Arial, Helvetica, sans-serif;\n }\n .main-card-for-some {\n background-color: #e9f3ff;\n border-radius: 0.375rem;\n height: 350px;\n width: 600px;\n text-align: center;\n display: flex;\n justify-content: center;\n align-items: center;\n }\n .heading-card {\n font-size: 1.60rem;\n font-weight: 600;\n letter-spacing: 0.025em;\n line-height: 2rem;\n }\n .up-mt-1 {\n margin-top: 3.564587rem;\n margin-bottom: 2.75rem;\n }\n .btn-blue {\n font-size: 1rem;\n line-height: 1rem;\n font-weight: bold;\n background-color: rgb(37 99 235);\n color: white !important;\n padding-left: 1.5rem;\n padding-right: 1.5rem;\n margin-top: 1rem;\n border-radius: 0.25rem;\n padding-top: 0.75rem;\n padding-bottom: 0.75rem;\n border: 0;\n text-decoration:none !important;\n }\n \n .btn-blue:hover{\n \tbackground-color: rgb(30 64 175);\n }\n\n .card-caption-body {\n display: flex;\n font-size: 0.75rem;\n line-height: 1rem;\n justify-content: space-evenly;\n margin-top: 1.5rem;\n font-weight: 300;\n column-gap:1.0rem;\n }\n\n .card-caption-text {\n display: flex;\n column-gap: 0.5rem;\n align-items: center;\n }\n <\/style>\n<\/head>\n<body>\n<main style=\"display:flex;justify-content:center;\">\n <div class=\"main-card-for-some\">\n <div>\n <p class=\"heading-card\">Get The Best PageSpeed Score <br>For Your WordPress Website<\/p>\n <div class=\"up-mt-1\">\n <a href=\"https:\/\/linke.to\/ke3PO\" class=\"btn-blue\">Install Now<\/a>\n <\/div>\n <div class=\"card-caption-body\">\n <div class=\"card-caption-text\">\n <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" x=\"0px\" y=\"0px\" width=\"10\" height=\"10\" viewBox=\"0,0,256,256\">\n <g fill=\"#007CFE\" fill-rule=\"nonzero\" stroke=\"none\" stroke-width=\"1\" stroke-linecap=\"butt\" stroke-linejoin=\"miter\" stroke-miterlimit=\"10\" stroke-dasharray=\"\" stroke-dashoffset=\"0\" font-family=\"none\" font-weight=\"none\" font-size=\"none\" text-anchor=\"none\" style=\"mix-blend-mode: normal\"><g transform=\"scale(8.53333,8.53333)\"><path d=\"M26.98047,5.99023c-0.2598,0.00774 -0.50638,0.11632 -0.6875,0.30273l-15.29297,15.29297l-6.29297,-6.29297c-0.25082,-0.26124 -0.62327,-0.36647 -0.97371,-0.27511c-0.35044,0.09136 -0.62411,0.36503 -0.71547,0.71547c-0.09136,0.35044 0.01388,0.72289 0.27511,0.97371l7,7c0.39053,0.39037 1.02353,0.39037 1.41406,0l16,-16c0.29576,-0.28749 0.38469,-0.72707 0.22393,-1.10691c-0.16075,-0.37985 -0.53821,-0.62204 -0.9505,-0.60988z\"><\/path><\/g><\/g>\n <\/svg>\n All in One Optimization Plugin\n <\/div>\n <div class=\"card-caption-text\">\n <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" x=\"0px\" y=\"0px\" width=\"10\" height=\"10\" viewBox=\"0,0,256,256\">\n <g fill=\"#007CFE\" fill-rule=\"nonzero\" stroke=\"none\" stroke-width=\"1\" stroke-linecap=\"butt\" stroke-linejoin=\"miter\" stroke-miterlimit=\"10\" stroke-dasharray=\"\" stroke-dashoffset=\"0\" font-family=\"none\" font-weight=\"none\" font-size=\"none\" text-anchor=\"none\" style=\"mix-blend-mode: normal\"><g transform=\"scale(8.53333,8.53333)\"><path d=\"M26.98047,5.99023c-0.2598,0.00774 -0.50638,0.11632 -0.6875,0.30273l-15.29297,15.29297l-6.29297,-6.29297c-0.25082,-0.26124 -0.62327,-0.36647 -0.97371,-0.27511c-0.35044,0.09136 -0.62411,0.36503 -0.71547,0.71547c-0.09136,0.35044 0.01388,0.72289 0.27511,0.97371l7,7c0.39053,0.39037 1.02353,0.39037 1.41406,0l16,-16c0.29576,-0.28749 0.38469,-0.72707 0.22393,-1.10691c-0.16075,-0.37985 -0.53821,-0.62204 -0.9505,-0.60988z\"><\/path><\/g><\/g>\n <\/svg>\n No Coding Knowledge Required\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n<\/main>\n<\/body>\n<\/html>\n\n\n\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li><strong>Your Render-Blocking Resources Can Encounter FOUC<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Usually, render-blocking resources such as fonts, JavaScript, and large-sized media files can delay or block your webpage\u2019s rendering process as well as the loading of CSS stylesheets. Thus, your web page\u2019s content will be rendered without any style. <\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li><strong>FOUC Occurs Due to Delaying of JavaScript Execution<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Managing your web page content\u2019s style through JavaScript files (CSS-in-JS libraries or inline script manipulation) can cause a flash of unstyled content issues because the web browser needs to parse and download the JavaScript file <\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_ways_to_fix_this_fouc_issue\"><\/span>5 Ways to Fix This FOUC Issue<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Now that you know the reason behind the FOUC issue, you will see how easily you can solve it by implementing the strategies below.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"preload_your_critical_resources\"><\/span><strong>Preload Your Critical Resources<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Use <link rel=\u2019preload\u2019> in your HTML file\u2019s <head> to ensure that your critical resources are available as soon as possible. This <link rel=\u2019preload\u2019> tag instructs the web browsers on the priority of these critical resources when your web page is loading. <\/p>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"535\" src=\"https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Preload-Critical-Resources-1024x535.jpg\" alt=\"Preload Critical Resources\" class=\"wp-image-2785\" srcset=\"https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Preload-Critical-Resources-1024x535.jpg 1024w, https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Preload-Critical-Resources-300x157.jpg 300w, https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Preload-Critical-Resources-768x401.jpg 768w, https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Preload-Critical-Resources.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>When you use RabbitLoader, it will automatically identify your website\u2019s critical resources and set a high fetch priority for them. You don\u2019t need to put any extra effort into this.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"inline_your_critical_css_in_your_html_file\"><\/span><strong>Inline Your Critical CSS in Your HTML File<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"535\" src=\"https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Inline-Critical-CSS-in-HTML-File-1024x535.jpg\" alt=\"Inline Critical CSS in HTML File\" class=\"wp-image-2786\" srcset=\"https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Inline-Critical-CSS-in-HTML-File-1024x535.jpg 1024w, https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Inline-Critical-CSS-in-HTML-File-300x157.jpg 300w, https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Inline-Critical-CSS-in-HTML-File-768x401.jpg 768w, https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Inline-Critical-CSS-in-HTML-File.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>You need to inline your critical CSS rules directly into your HTML file to render the webpage without any flash of unstyled content issues. By inlining your critical CSS into an HTML file, you can ensure that your essential files are loaded with your HTML content.<\/p>\n\n\n\n<p><strong>The syntax for inline style:<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code language-html\"><code><html>\n\n<head>\n\n<style>\n\nbody {\n\n background-color: linen;\n\n}\n\nh1 {\n\n color: maroon;\n\n margin-left: 40px;\n\n}\n\n<\/style>\n\n<\/head> <\/html><\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"minimize_render-blocking_resources\"><\/span><strong>Minimize Render-Blocking Resources<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>As mentioned earlier, render-blocking resources are the most common reason for this flash of unstyled content issues. To prevent this you need to reduce your render blocking resources as much as possible. <\/p>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n <meta charset=\"UTF-8\">\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n <title>Document<\/title>\n <style>\n body {\n font-family: Arial, Helvetica, sans-serif;\n }\n .main-card-for-some {\n background-color: #e9f3ff;\n border-radius: 0.375rem;\n height: 350px;\n width: 600px;\n text-align: center;\n display: flex;\n justify-content: center;\n align-items: center;\n }\n .heading-card {\n font-size: 1.60rem;\n font-weight: 600;\n letter-spacing: 0.025em;\n line-height: 2rem;\n }\n .up-mt-1 {\n margin-top: 3.564587rem;\n margin-bottom: 2.75rem;\n }\n .btn-blue {\n font-size: 1rem;\n line-height: 1rem;\n font-weight: bold;\n background-color: rgb(37 99 235);\n color: white !important;\n padding-left: 1.5rem;\n padding-right: 1.5rem;\n margin-top: 1rem;\n border-radius: 0.25rem;\n padding-top: 0.75rem;\n padding-bottom: 0.75rem;\n border: 0;\n text-decoration:none !important;\n }\n \n .btn-blue:hover{\n \tbackground-color: rgb(30 64 175);\n }\n\n .card-caption-body {\n display: flex;\n font-size: 0.75rem;\n line-height: 1rem;\n justify-content: space-evenly;\n margin-top: 1.5rem;\n font-weight: 300;\n column-gap:1.0rem;\n }\n\n .card-caption-text {\n display: flex;\n column-gap: 0.5rem;\n align-items: center;\n }\n <\/style>\n<\/head>\n<body>\n<main style=\"display:flex;justify-content:center;\">\n <div class=\"main-card-for-some\">\n <div>\n <p class=\"heading-card\">Get The Best PageSpeed Score <br>For Your WordPress Website<\/p>\n <div class=\"up-mt-1\">\n <a href=\"https:\/\/linke.to\/ke3PO\" class=\"btn-blue\">Install Now<\/a>\n <\/div>\n <div class=\"card-caption-body\">\n <div class=\"card-caption-text\">\n <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" x=\"0px\" y=\"0px\" width=\"10\" height=\"10\" viewBox=\"0,0,256,256\">\n <g fill=\"#007CFE\" fill-rule=\"nonzero\" stroke=\"none\" stroke-width=\"1\" stroke-linecap=\"butt\" stroke-linejoin=\"miter\" stroke-miterlimit=\"10\" stroke-dasharray=\"\" stroke-dashoffset=\"0\" font-family=\"none\" font-weight=\"none\" font-size=\"none\" text-anchor=\"none\" style=\"mix-blend-mode: normal\"><g transform=\"scale(8.53333,8.53333)\"><path d=\"M26.98047,5.99023c-0.2598,0.00774 -0.50638,0.11632 -0.6875,0.30273l-15.29297,15.29297l-6.29297,-6.29297c-0.25082,-0.26124 -0.62327,-0.36647 -0.97371,-0.27511c-0.35044,0.09136 -0.62411,0.36503 -0.71547,0.71547c-0.09136,0.35044 0.01388,0.72289 0.27511,0.97371l7,7c0.39053,0.39037 1.02353,0.39037 1.41406,0l16,-16c0.29576,-0.28749 0.38469,-0.72707 0.22393,-1.10691c-0.16075,-0.37985 -0.53821,-0.62204 -0.9505,-0.60988z\"><\/path><\/g><\/g>\n <\/svg>\n All in One Optimization Plugin\n <\/div>\n <div class=\"card-caption-text\">\n <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" x=\"0px\" y=\"0px\" width=\"10\" height=\"10\" viewBox=\"0,0,256,256\">\n <g fill=\"#007CFE\" fill-rule=\"nonzero\" stroke=\"none\" stroke-width=\"1\" stroke-linecap=\"butt\" stroke-linejoin=\"miter\" stroke-miterlimit=\"10\" stroke-dasharray=\"\" stroke-dashoffset=\"0\" font-family=\"none\" font-weight=\"none\" font-size=\"none\" text-anchor=\"none\" style=\"mix-blend-mode: normal\"><g transform=\"scale(8.53333,8.53333)\"><path d=\"M26.98047,5.99023c-0.2598,0.00774 -0.50638,0.11632 -0.6875,0.30273l-15.29297,15.29297l-6.29297,-6.29297c-0.25082,-0.26124 -0.62327,-0.36647 -0.97371,-0.27511c-0.35044,0.09136 -0.62411,0.36503 -0.71547,0.71547c-0.09136,0.35044 0.01388,0.72289 0.27511,0.97371l7,7c0.39053,0.39037 1.02353,0.39037 1.41406,0l16,-16c0.29576,-0.28749 0.38469,-0.72707 0.22393,-1.10691c-0.16075,-0.37985 -0.53821,-0.62204 -0.9505,-0.60988z\"><\/path><\/g><\/g>\n <\/svg>\n No Coding Knowledge Required\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n<\/main>\n<\/body>\n<\/html>\n\n\n\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>These render-blocking resources can be your Javascript files, non-critical CSS stylesheets, font, and HTML files.<\/p>\n\n\n\n<p><strong>RabbitLoader <\/strong>eliminates your <a href=\"https:\/\/rabbitloader.com\/articles\/eliminate-render-blocking-resources\/\">render-blocking resources<\/a> to prevent flash of unstyled content and unstyled text by following the below strategies:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Generating critical CSS and deferring non-critical CSS<\/li>\n\n\n\n<li>Using defer and async attributes in your render-blocking JavaScript files<\/li>\n\n\n\n<li>Minifying your CSS and JavaScript files<\/li>\n\n\n\n<li>set a high fetch priority for your critical resources<\/li>\n\n\n\n<li>Identify and remove your unused CSS and JavaScript files.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"optimize_your_image_size\"><\/span><strong>Optimize Your Image Size<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Though images are the greatest way to convey your messages easily, large-sized images can be the biggest enemy of your website during web page loading time. By optimizing the image size, you can reduce this FOUC error.<\/p>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"535\" src=\"https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Optimize-Image-Size-1024x535.jpg\" alt=\"Optimize Image Size\" class=\"wp-image-2787\" srcset=\"https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Optimize-Image-Size-1024x535.jpg 1024w, https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Optimize-Image-Size-300x157.jpg 300w, https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Optimize-Image-Size-768x401.jpg 768w, https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Optimize-Image-Size.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>RabbitLoader will convert all your large-sized PNG and IMG images to the <a href=\"https:\/\/rabbitloader.com\/articles\/next-gen-format\">modern WebP and AVIF format<\/a> putting any extra effort and cost. It compresses your all images losslessly (without decreasing their quality) with its bulk optimization features. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"utilize_server-side_rendering_ssr_you_can_prevent_fouc\"><\/span><strong>Utilize Server-Side Rendering (SSR) You Can Prevent FOUC<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>The server-side rendering indicates that the content of your web page will be displayed on the server side rather than displayed in your user\u2019s browser like <a href=\"https:\/\/www.google.com\/chrome\/\">Google Chrome<\/a> or Internet Explorer. <\/p>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"535\" src=\"https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Server-Side-Rendering-1024x535.jpg\" alt=\"Server Side Rendering\" class=\"wp-image-2788\" srcset=\"https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Server-Side-Rendering-1024x535.jpg 1024w, https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Server-Side-Rendering-300x157.jpg 300w, https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Server-Side-Rendering-768x401.jpg 768w, https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Server-Side-Rendering.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>By implementing server side rendering(SSR) you can generate fully styled HTML content before sending it to your visitor. This can eliminate the flash of unstyled content on your website.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>In the above, you have learned about FOUC (Flash of Unstyled Content). Also, you have explored the 3 most common reasons behind this issue such as asynchronous loading of your CSS stylesheets, your render-blocking resources, and delaying of JavaScript Execution.<\/p>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n <meta charset=\"UTF-8\">\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n <title>Document<\/title>\n <style>\n body {\n font-family: Arial, Helvetica, sans-serif;\n }\n .main-card-for-some {\n background-color: #e9f3ff;\n border-radius: 0.375rem;\n height: 350px;\n width: 600px;\n text-align: center;\n display: flex;\n justify-content: center;\n align-items: center;\n }\n .heading-card {\n font-size: 1.60rem;\n font-weight: 600;\n letter-spacing: 0.025em;\n line-height: 2rem;\n }\n .up-mt-1 {\n margin-top: 3.564587rem;\n margin-bottom: 2.75rem;\n }\n .btn-blue {\n font-size: 1rem;\n line-height: 1rem;\n font-weight: bold;\n background-color: rgb(37 99 235);\n color: white !important;\n padding-left: 1.5rem;\n padding-right: 1.5rem;\n margin-top: 1rem;\n border-radius: 0.25rem;\n padding-top: 0.75rem;\n padding-bottom: 0.75rem;\n border: 0;\n text-decoration:none !important;\n }\n \n .btn-blue:hover{\n \tbackground-color: rgb(30 64 175);\n }\n\n .card-caption-body {\n display: flex;\n font-size: 0.75rem;\n line-height: 1rem;\n justify-content: space-evenly;\n margin-top: 1.5rem;\n font-weight: 300;\n column-gap:1.0rem;\n }\n\n .card-caption-text {\n display: flex;\n column-gap: 0.5rem;\n align-items: center;\n }\n <\/style>\n<\/head>\n<body>\n<main style=\"display:flex;justify-content:center;\">\n <div class=\"main-card-for-some\">\n <div>\n <p class=\"heading-card\">Get The Best PageSpeed Score <br>For Your WordPress Website<\/p>\n <div class=\"up-mt-1\">\n <a href=\"https:\/\/linke.to\/ke3PO\" class=\"btn-blue\">Install Now<\/a>\n <\/div>\n <div class=\"card-caption-body\">\n <div class=\"card-caption-text\">\n <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" x=\"0px\" y=\"0px\" width=\"10\" height=\"10\" viewBox=\"0,0,256,256\">\n <g fill=\"#007CFE\" fill-rule=\"nonzero\" stroke=\"none\" stroke-width=\"1\" stroke-linecap=\"butt\" stroke-linejoin=\"miter\" stroke-miterlimit=\"10\" stroke-dasharray=\"\" stroke-dashoffset=\"0\" font-family=\"none\" font-weight=\"none\" font-size=\"none\" text-anchor=\"none\" style=\"mix-blend-mode: normal\"><g transform=\"scale(8.53333,8.53333)\"><path d=\"M26.98047,5.99023c-0.2598,0.00774 -0.50638,0.11632 -0.6875,0.30273l-15.29297,15.29297l-6.29297,-6.29297c-0.25082,-0.26124 -0.62327,-0.36647 -0.97371,-0.27511c-0.35044,0.09136 -0.62411,0.36503 -0.71547,0.71547c-0.09136,0.35044 0.01388,0.72289 0.27511,0.97371l7,7c0.39053,0.39037 1.02353,0.39037 1.41406,0l16,-16c0.29576,-0.28749 0.38469,-0.72707 0.22393,-1.10691c-0.16075,-0.37985 -0.53821,-0.62204 -0.9505,-0.60988z\"><\/path><\/g><\/g>\n <\/svg>\n All in One Optimization Plugin\n <\/div>\n <div class=\"card-caption-text\">\n <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" x=\"0px\" y=\"0px\" width=\"10\" height=\"10\" viewBox=\"0,0,256,256\">\n <g fill=\"#007CFE\" fill-rule=\"nonzero\" stroke=\"none\" stroke-width=\"1\" stroke-linecap=\"butt\" stroke-linejoin=\"miter\" stroke-miterlimit=\"10\" stroke-dasharray=\"\" stroke-dashoffset=\"0\" font-family=\"none\" font-weight=\"none\" font-size=\"none\" text-anchor=\"none\" style=\"mix-blend-mode: normal\"><g transform=\"scale(8.53333,8.53333)\"><path d=\"M26.98047,5.99023c-0.2598,0.00774 -0.50638,0.11632 -0.6875,0.30273l-15.29297,15.29297l-6.29297,-6.29297c-0.25082,-0.26124 -0.62327,-0.36647 -0.97371,-0.27511c-0.35044,0.09136 -0.62411,0.36503 -0.71547,0.71547c-0.09136,0.35044 0.01388,0.72289 0.27511,0.97371l7,7c0.39053,0.39037 1.02353,0.39037 1.41406,0l16,-16c0.29576,-0.28749 0.38469,-0.72707 0.22393,-1.10691c-0.16075,-0.37985 -0.53821,-0.62204 -0.9505,-0.60988z\"><\/path><\/g><\/g>\n <\/svg>\n No Coding Knowledge Required\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n<\/main>\n<\/body>\n<\/html>\n\n\n\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>If you are struggling with this FOUC issue on your website, you must follow the above strategies and install RabbitLoader to effortlessly fix your FOUC issue and improve your website\u2019s visibility as well as user experience. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>As a website owner, you often encounter FOUC (Flash of Unstyled Content) issues. These issues negatively impact your website\u2019s performance and user experience. When you load a webpage, first you will see an unstyled webpage for a few moments instead of your actual webpage. Here we will discuss FOUC (Flash of Unstyled Content), break down […]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[460,459,462,463,461],"class_list":["post-2778","post","type-post","status-publish","format-standard","hentry","category-wordpress","tag-flash-of-unstyled-content","tag-fouc","tag-fouc-issue","tag-how-to-solve-fouc","tag-performance"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is FOUC, and the 5 Most Effective Ways to Fix This Issue on Your Web Pages?<\/title>\n<meta name=\"description\" content=\"As a website owner, you often encounter FOUC (Flash of Unstyled Content) issues. These issues negatively impact your website\u2019s performance...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/rabbitloader.com\/articles\/fouc\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is FOUC, and the 5 Most Effective Ways to Fix This Issue on Your Web Pages?\" \/>\n<meta property=\"og:description\" content=\"As a website owner, you often encounter FOUC (Flash of Unstyled Content) issues. These issues negatively impact your website\u2019s performance...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/rabbitloader.com\/articles\/fouc\/\" \/>\n<meta property=\"og:site_name\" content=\"RabbitLoader\" \/>\n<meta property=\"article:published_time\" content=\"2024-09-14T11:52:44+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-01-27T15:42:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Flash-of-Unstyled-Content-1024x535.jpg\" \/>\n<meta name=\"author\" content=\"Sonju Ghosh\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Sonju Ghosh\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/rabbitloader.com\/articles\/fouc\/\",\"url\":\"https:\/\/rabbitloader.com\/articles\/fouc\/\",\"name\":\"What is FOUC, and the 5 Most Effective Ways to Fix This Issue on Your Web Pages?\",\"isPartOf\":{\"@id\":\"https:\/\/rabbitloader.com\/articles\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/rabbitloader.com\/articles\/fouc\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/rabbitloader.com\/articles\/fouc\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/rabbitloader.com\/articles\/wp-content\/uploads\/2024\/09\/Flash-of-Unstyled-Content-1024x535.jpg\",\"datePublished\":\"2024-09-14T11:52:44+00:00\",\"dateModified\":\"2025-01-27T15:42:57+00:00\",\"author\":{\"@id\":\"https:\/\/rabbitloader.com\/articles\/#\/schema\/person\/989c1fc1b0731c57624806de5cd06e53\"},\"description\":\"As a website owner, you often encounter FOUC (Flash of Unstyled Content) issues. 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