Check your meta tags
for SEO

Analyse any page's title, description, Open Graph tags, headings, and image alt text. See how it looks in search results.

A ModusOp product

Enter a full URL — we'll fetch and analyse the page's meta tags.

Fetching and analysing page…

What Meta Tag Checker analyses

Meta tags are the small fragments of HTML in the <head> of every web page. You never see them on screen, but they do a lot of quiet work: they tell Google what your page is called and what it's about, they decide how your link looks when someone pastes it into Slack or Facebook, and they control whether a page gets indexed at all. Most of the time they're fine. Occasionally one is missing, too long, duplicated, or pointing at the wrong URL — and that's exactly the kind of problem that costs you clicks without ever throwing an error.

Paste any URL into the checker above and we fetch the live page, parse the HTML the same way a search engine would, and report back on every element that matters for on-page SEO. Here's what each section of the report is looking at, and why it's worth getting right.

The tags that show up in search results

Title tag

The <title> is the single most important on-page SEO element. It's the clickable headline in Google's results, the label on the browser tab, and the default name used when someone bookmarks the page. We check that it exists, measure its length, and flag it if it falls outside the 30–60 character sweet spot. Too short and you're wasting space you could use to describe the page; too long and Google truncates it with an ellipsis, often cutting off your most important words. For a full breakdown, see our guide to title tag best practices.

Meta description

The meta description is the grey snippet of text beneath your title in search results. It isn't a direct ranking factor, but it's effectively ad copy — a well-written description lifts click-through rate, and a missing one leaves Google to scrape a random sentence from your page. We grade it against the 120–160 character range, which is roughly what Google displays before truncating. Learn how to write one that earns clicks in our meta description guide.

To make the abstract concrete, the report renders a live Google-style preview showing how your title, URL, and description would actually appear in the results page — so you can spot a truncated title or a weak description before it goes live.

The tags that control social sharing

When someone shares your link on Facebook, LinkedIn, Slack, Discord, WhatsApp, or X, the rich preview card — the image, headline, and blurb — is built entirely from Open Graph and Twitter Card tags. Get them wrong and your link shows up as a bare URL or pulls in the wrong image, which quietly kills the share. The checker reports every og: and twitter: tag it finds and flags the four Open Graph essentials every page should have: og:title, og:description, og:image, and og:url. Our Open Graph guide and Twitter Cards guide cover image dimensions and the full tag set.

The technical tags

These don't appear in search results, but they tell crawlers how to treat the page:

On-page structure

Heading hierarchy

We count your <h1> and <h2> tags and show samples. A page should have exactly one H1 — it's the page's main heading and a strong relevance signal. Zero H1s leaves the page's topic ambiguous; multiple H1s dilute it. The H2s should form a logical outline beneath it. More on this in our heading hierarchy guide.

Image alt text

The report audits every <img> on the page and counts how many are missing alt attributes. Alt text is what screen readers announce, what shows when an image fails to load, and what helps images rank in Google Images. Missing alt text is both an accessibility gap and a missed SEO opportunity — see how to write image alt text.

How the grade is calculated

Every check rolls up into a single letter grade from A to F, scored out of a weighted total so the elements that matter most carry the most weight:

Your score is the percentage of points earned: 90%+ is an A, 75% a B, 55% a C, 35% a D, and anything below that an F. Alongside the grade you get a plain-English list of exactly what to fix — not "improve your meta tags," but "title tag is too long (68 chars)" or "2 of 9 images missing alt text." The point is to give you a specific, actionable to-do list, not a vague score.

How to use the results

The fastest workflow is to run a check the moment you publish or update a page — it's a ten-second sanity test that catches the most common mistakes before they reach Google. Work down the issues list from top to bottom; the checks are ordered by impact, so fixing the first few moves the needle most. Re-run the check after you deploy your fixes to confirm the grade has improved.

For an existing site, spot-check your most important pages first: the homepage, your top landing pages, and your best-performing blog posts. If a template is wrong — a missing viewport tag, a hard-coded canonical, no Open Graph block — it's usually wrong across every page built from that template, so one fix can lift dozens of URLs at once. If you're new to any of this, the complete guide to meta tags walks through every tag from scratch, and the tag reference and glossary are there whenever you hit a term you don't recognise.

The tool is free, unlimited, and requires no signup — run as many pages as you like. Have a question we haven't answered here? The complete guide to meta tags goes deeper, or get in touch and we'll help.

Frequently Asked Questions

What are meta tags and why do they matter for SEO?
Meta tags are HTML elements that provide search engines with information about your page. The title tag and meta description appear in search results and directly affect click-through rates. Open Graph and Twitter Card tags control how your page looks when shared on social media.
What's the ideal title tag length?
Aim for 30 to 60 characters. Shorter than 30 and you're not giving Google enough signal about what the page is about; longer than 60 and the title gets truncated in search results, which can hurt click-through rates. Meta Tag Checker grades your title against this range and flags anything outside it.
Do I need both Open Graph tags and Twitter Cards?
Ideally yes — they're used by different platforms. Open Graph is the standard Facebook, LinkedIn, Slack, and Discord use; Twitter Cards are specific to X. Twitter falls back to Open Graph tags when Twitter Cards are missing, so if you only implement one, Open Graph gives you wider coverage.
What is a canonical URL and do I need one?
A canonical URL tells search engines which version of a page is the "official" one. This prevents duplicate content issues when the same page is accessible at multiple URLs (e.g. with and without trailing slashes, or with query parameters). Every page should have one.
How is the SEO grade calculated?
The grade is based on the presence and quality of essential SEO elements: title tag length, meta description length, Open Graph completeness, Twitter Card tags, heading structure (H1/H2), image alt text, canonical URL, and robots directives. Each element is weighted by its SEO impact.
Is Meta Tag Checker really free?
Yes — completely free, no signup, no credit card, no rate limits, and no "premium" tier with the real features locked behind a paywall. We run it because we use it ourselves when auditing client sites. Ads on the page help cover hosting, but the tool itself will always be free.
Does it store my URL or scan results?
No. Every check is processed in real time — we fetch the page, parse it, generate your report, and then forget about it. Nothing is written to a database and no emails are captured, beyond standard anonymous analytics. See our privacy policy for the full details.
How often should I check my meta tags?
Run a check whenever you publish or significantly update a page — it's a 10-second sanity test that catches the most common SEO mistakes before they go live. For existing sites, we recommend a full audit every three to six months, or whenever you make layout or CMS changes.