SiteLock WordPress Security Plugin
Fast to setup. Light to run. Harden WordPress the easy way.
Free on WordPress.org. Add essential security to your WordPress site with one plugin. Toggle WP-specific hardening, tighten login security, view Site Health and activity logs, and run off-server cloud checks - all inside WP Admin.
What the free plugin includes:
- Ready-to-apply WP-specific hardening toggles to reduce common attack paths
- Built-in login hygiene: enforce strong passwords, enable 2FA, limit brute-force attack attempts and session timeouts
- View WordPress Site Health and cloud scan results* without leaving WordPress
- On-demand malware scans and recurring cloud checks*
* Available after connecting a free SiteLock account
Why do WordPress websites need protection?
Why do WordPress websites need protection?
As the most popular CMS platform, WordPress attracts hackers. Its plugin-driven flexibility widens the attack surface, increasing site security risk and ongoing maintenance overhead.
- WordPress sites are 25% more likely to have vulnerabilities than non-CMS sites
- WordPress sites are 3.27× more likely to be infected
Source: SiteLock 2024 Website Security Report
Cloud checks + safe hardening help close common attack paths
How does the SiteLock plugin help secure WordPress?
The SiteLock plugin helps secure WordPress by focusing on high-impact protections delivered in a simple, lightweight way:
- Action-first baseline - WordPress-specific hardening and core login protection in minutes, delivering quick wins without a maze of settings
- Light footprint - Cloud checks run off your server, so your site stays fast without heavy, on-server scans
- Built for clarity - Site Health view with a security summary for an at-a-glance posture check
- Assurance on demand - Run cloud security scans after updates or changes for immediate visibility
Wordpress website security made easy - How it works
The SiteLock WordPress plugin works directly inside WP Admin, giving you real-time visibility into site health and security. Use simple controls to apply WordPress hardening, then connect a free SiteLock account to run off-server cloud checks that validate changes without slowing your site.
The plugin provides baseline protection focused on prevention and visibility rather than full malware removal. For live attack blocking, malware cleanup, and performance optimization, connect a full SiteLock plan to enable firewall and CDN.
WordPress hardening
Toggle on WordPress specific hardening to cut common attack paths.
Login hygiene
Enforce password policies, enable 2FA, gain visibility into login attempts, throttle brute-force attempts, and set session timeouts.
Site Health & activity in WP Admin
See Site Health; run on-demand scans and schedule recurring cloud checks (free SiteLock account required).
Free to start, easy to expand
Connect a free SiteLock account and add advanced protections later only when needed.
How to install the SiteLock plugin
Recommended
via WordPress Dashboard
- Log in to WordPress admin
- Plugins → Add New
- Search “SiteLock Security”
- Install Now → Activate
- Connect your free SiteLock account to enable Scan Now and recurring cloud checks
MANUAL INSTALL
from WordPress.org
Download SiteLock Security from WordPress.org and upload it to your site’s plugins.
Install & Uninstall Safety
Safe to install and remove
No code changes or theme conflicts. Revert toggles if you like, then uninstall. Your SiteLock account stays available on the web.
Upgrade any time. No re-install. No loss of settings.
Have Questions?
What does the free SiteLock WordPress plugin do?
The plugin gives you a fast way to enable baseline hardening and login protections directly in WordPress. When connected to a free SiteLock account, you can also run on-demand cloud security posture checks that won’t slow down your server. It’s a great first step for site owners who want clarity and quick wins.
How does SiteLock help sites achieve PCI Compliance?
Being PCI compliant is necessary when eCommerce sites accept credit card payments online, but it doesn’t have to be intimidating or complicated. We’ll guide you through each step of the process, ensuring your customers’ credit card data is protected. SiteLock will provide a simplified SAQ based on your SAQ type and then run an initial PCI compliance scan for vulnerabilities on your website.
Can SiteLock improve my WordPress website's performance?
Using WordPress security plugins comes at a cost: requests, logs, analytics, and even blocking all happen directly on your web server. When a million bots visit your site, it will slow to a crawl. SiteLock protects at the perimeter. Coupled with our CDN, you’ll see instant site performance improvements while receiving industry-leading security.
How does Cloud-based security solve the problem?
Using cloud-based technology, we are able to scan and protect your WordPress site outside your normal hosting operations, which improves performance. Plus, by filtering, controlling, and monitoring the traffic, SiteLock is able to provide real-time protection, virtual patching, and DDoS attack prevention.
Will my site be protected from vulnerabilities?
A vulnerability is a weakness in code that can provide a “backdoor” into site applications so cybercriminals can gain unauthorized access to your site. SiteLock’s WordPress vulnerability scanner easily detects these weaknesses. Once they are identified, our vulnerability patching can automatically fix weaknesses within WordPress quickly, so your site remains secure.
Does SiteLock update WordPress Themes and Plugins for me?
No, SiteLock does not update WordPress themes and plugins. Our solution patches the vulnerabilities found in your site which is different from updating themes and plugins. Our technology safely and surgically applies individual security patches, assuring that the installation is as secure as the latest version of the CMS without extra manual effort from site owners.
Get started with SiteLock today
SiteLock quickly removes threats, restores functionality, and helps prevent future attacks, all backed by continuous monitoring and support.
