Your website's check-up starts here
WebDoctor is a growing kit of free diagnostic tools for site owners. No sign-up and nothing to install: give it a URL and get a clear diagnosis with fixes.
Tools
XML Sitemap Validator
Check any sitemap against the official protocol and Google's rules: by URL, file upload or pasted XML. Every error explained, with the fix.
Check your sitemap →AI Readiness Checker
Can ChatGPT, Claude and Perplexity read and cite your site? Checks llms.txt, robots.txt AI-crawler rules, structured data and metadata.
Check AI readiness →llms.txt Generator
Build a valid llms.txt for any site in seconds: we read your sitemap and page titles and produce the file, ready to upload.
Generate llms.txt →robots.txt Tester
See exactly which crawlers your robots.txt lets in. Test any URL against Googlebot, Bingbot, GPTBot and more, and get the rule that decided it.
Test your robots.txt →Redirect Chain Checker
Follow a URL through every redirect it takes. See each status code, each Location header and the page it finally lands on, with loops and long chains flagged.
Trace a redirect chain →Hreflang checker
Meta tag analyzer
Why your sitemap deserves a check-up
An XML sitemap is the list of pages you ask search engines to crawl. When it is broken, stale or bloated, crawlers waste their budget on dead URLs and can miss the pages you actually care about.
Most sitemap problems are silent. The file still loads, Google Search Console shows a vague warning at best, and rankings erode quietly. A validator makes the invisible visible: wrong namespaces, malformed dates, URLs that do not belong, oversized files and more.
WebDoctor checks your sitemap the way a crawler reads it, then explains each finding in plain language and tells you exactly what to change.
From the blog
Schema Types That Actually Earn Rich Results in 2026
Nine types still earn a visual treatment. Two famous ones were retired. Here is the current list, from Google's own documentation.
Core Web VitalsCore Web Vitals in 2026: Thresholds and What Moved
The metrics did not change this year. Plenty of the tooling around them did. Here is what is actually true right now.
Meta descriptionsMeta Descriptions in the AI Answer Era: What Works
The description tag still has one job, and it is smaller than it used to be. Here is what to write, and what matters more.