Thirteen free technical SEO tools. No account, no credit card, and a guide with every one.
Check meta tags, headings, social tags and images, with optional JavaScript rendering
→Visualize and validate your HTML heading hierarchy
→Analyze keyword frequency and density on any page or in your content
→Validate your robots.txt file for syntax errors and best practices
→Automatically discover and list all URLs in your sitemap
→Analyze your XML sitemap for errors and optimization opportunities
→Generate optimized meta tags for your web pages
→Analyze links, check nofollow, external links, and SEO issues
→Check canonical tags, follow chains, detect circular references
→Core Web Vitals, resource breakdown and optimization recommendations
→Comprehensive image optimization analysis with JS rendering
→Compare HTML served vs JavaScript-rendered content
→Analyze total page weight, resource breakdown, and optimization opportunities
→Each tool does one job well, on one page at a time. Start with the problem you have.
No account, no install. Results in seconds.
Paste the address of any public page. Some tools take pasted text instead, like the robots.txt validator and keyword density checker.
Built with React, Vue or Angular? Turn on Render JavaScript to load the page in a real Chrome browser and check what visitors actually see.
Issues come first, then warnings, with the exact tag, heading or link involved so you know where to look.
Every tool has a guide below it explaining each result and how to fix it. Make the change, run the tool again, and confirm it’s gone.
Yes. Every tool is free with no account and no credit card. There is an hourly limit per visitor so the service stays fast for everyone.
They work on any public website. Pages behind a login, and private or internal network addresses, cannot be checked.
It loads your page in a real headless Chrome browser and waits for scripts to run, so you can see the content visitors see as well as the raw HTML that crawlers receive first.
The tools check one page at a time. The site audit crawls up to 250 pages and lists every issue it finds across the site, for a one-time $10.