Free tools
Free website checking tools
Each tool runs one real check on one page of your website and explains what it found in plain language, with a clear next step for every problem.
- Free to use. A basic check doesn't need an account.
- Each check looks at the one page you enter, not your whole site.
- Checks without an account are limited to a few per hour and per day for each network, so everyone gets a turn. A free account raises the limit.
All tools
Website Audit
Check one page for SEO, speed, mobile, accessibility, security, broken links and server problems in a single report.
Audit my websiteUseful for: Website owners who want the full picture
Takes about 1–2 minutes
SEO Checker
Check your page title, description, headings, image descriptions, canonical URL, robots.txt and sitemap.
Check SEOUseful for: Site owners, bloggers and marketers
Takes about 10 seconds
Website Speed Checker
Load your page in a real browser with Lighthouse and see how quickly it shows content and responds.
Check speedUseful for: Anyone whose site feels slow
Takes about 30–60 seconds
Mobile Checker
See your page on phone, tablet and desktop screens and find content that spills off the screen.
Check mobileUseful for: Owners of sites that get mobile visitors
Takes about 20–40 seconds
Broken Link Checker
Follow the links on your page to other pages of your site and flag the ones that are broken, plus JavaScript errors.
Find broken linksUseful for: Content editors and site maintainers
Takes about 20–40 seconds
Accessibility Checker
Test your page with axe-core for common barriers such as missing labels, low contrast and missing image descriptions.
Check accessibilityUseful for: Teams who want their site usable by everyone
Takes about 20–40 seconds
Website Security Checker
Check HTTPS, your SSL certificate and the security headers your server sends.
Check securityUseful for: Site owners and developers
Takes about 10 seconds
API Tester
Send a request to any public API endpoint and see the status code, response time and whether it succeeded.
Test an endpointUseful for: Developers
Takes a few seconds
Which tool should I use?
Start from the problem you have. If you're not sure, run the Website Audit — it runs every check at once.
- You want an overall health check, or don't know where to startWebsite Audit
- A page isn't showing up in search, or its search result looks wrongSEO Checker
- Your page feels slow to appear or slow to respondWebsite Speed Checker
- Visitors on phones have to zoom or scroll sidewaysMobile Checker
- Someone reported a dead link, or a button does nothingBroken Link Checker
- You want people using screen readers or keyboards to be able to use your siteAccessibility Checker
- Your browser shows a security warning, or you want to check your HTTPS setupWebsite Security Checker
- You need to know whether an API endpoint is up and how fast it answersAPI Tester
How these checks work
Every tool uses the same scanners as our full reports: Google Lighthouse for speed, a real Chromium browser for mobile layout, links, forms and accessibility, axe-core for accessibility rules, and direct, read-only requests to your server for SEO and security. Each finding shows the evidence behind it. Our methodology page explains how each score is calculated, how evidence is collected and what automated checks can't tell you.