An SEO crawler starts at your home page, downloads it, records everything a search engine would read, then follows each internal link to the next page and repeats. It builds a map of your site from the inside, so it finds problems you cannot see by browsing, such as a page that redirects twice, a blog post nobody links to, or a template that adds two title tags.

This SEO crawler also reads your robots.txt file first, the same way well-behaved bots do, and adds the URLs listed in your XML sitemap. Comparing the two is how it finds orphan pages: pages your sitemap tells Google about but your own site never links to.

Yes. This free SEO crawler covers the checks most audits start with, up to 500 URLs, with nothing to install. It suits quick audits, sites built on WordPress, Shopify, Wix, and Squarespace, and checking a site from a phone or a client’s laptop.

A desktop crawler is still the stronger choice for sites with thousands of pages, JavaScript rendering, and custom extraction. I use both: this SEO crawler for the fast first pass, and a desktop crawler when a project calls for depth.

The AI Visibility Readiness score rates how easy your site is for AI answers to reach, understand, and credit, out of 100. This SEO crawler scores it alongside site health because a site can be technically clean and still be hard for ChatGPT, Claude, Perplexity, or Google’s AI features to use.

It checks eight signals across every page crawled: whether AI search and assistant crawlers are allowed, brand entity schema on your home page, structured data coverage, question-style headings, author and date signals, Open Graph previews, and an optional llms.txt file. No tool can see how AI systems rank sources, so treat this as a readiness check, not a promise of citations.

Run this SEO crawler on your domain and open the Issues tab. “Internal links to broken pages” lists every page that links to a 404 or other error, with the broken URL next to it, so you know exactly which link to edit. “Pages returning 4xx errors” shows the broken pages themselves and how many pages link to each one.

Fix the links on the pages listed, or 301 redirect the dead URL to the closest live page. Then run the SEO crawler again. Email yourself the free PDF report if you need to hand the list to a developer.

Run an SEO crawler at least once a month, and every time your site changes in a big way: a redesign, a new theme or plugin, a migration, or a batch of new pages. Monthly crawls catch broken links and redirect chains while they are still small, before they pile up across hundreds of pages.

After each fix, crawl again. A second SEO crawler run is the fastest way to prove a change landed, and the site health score gives you a simple number to track over time.

This SEO crawler can check any public website, including a competitor’s, as long as the site answers normal requests. It only reads what any visitor could see, and it respects robots.txt by default.

Some sites block automated visits with a firewall, a security plugin, or a bot check. When that happens the SEO crawler reports the pages it could not fetch, which is itself a useful finding: if a crawler cannot reach a page, search engines and AI crawlers may struggle too.

A site health score of 90 or more means the crawl found few problems for the size of the site. From 75 to 89 the site is in good shape with fixes to make, from 50 to 74 it needs work, and under 50 something is likely stopping search engines from reading important pages.

The score weighs errors most, then warnings, then notices, and scales each issue by how many of your crawled pages it affects. It measures technical health only. Content quality, links from other sites, and search demand matter just as much for rankings, so treat the score as your technical baseline.