An SEO crawler is a web crawler that records the details search engines care about for every URL: status code, title, meta description, headings, canonical tag, robots directives, links in and out, and response time.
It turns those details into a list of issues, usually grouped by type and severity, so you can see what to fix first.
Search engines cannot rank pages they cannot crawl or index. An SEO crawler shows you the technical conditions on your site that decide whether that can happen.
It is also how agencies produce a repeatable audit for each client.
VisibilityKit Crawler audits titles, descriptions, headings, canonicals, links, responses and redirects. Findings go into the Action Center, where you assign owners and later verify each fix with a fresh check.
It also ships with a built-in MCP server, so any LLM or AI client that can connect to and call an MCP server can start a crawl and read the findings.
Yes. A crawler describes conditions on your website. AI visibility has to be measured separately. The two answer different questions.
VisibilityKit Crawler has a free tier with the full audit, Action Center and verification loop, including the MCP server, with no time limit and no account.
A program that fetches web pages, follows the links it finds and records what each URL returns.
A systematic check of a website's crawlability, indexability, links, redirects and on-page elements.
VisibilityKit Crawler's workspace for turning audit findings into assigned, tracked work.
A program that exposes tools to AI clients through the Model Context Protocol.
The PageRank algorithm computed over your own site's internal links, showing which pages your link structure treats as most important.
A desktop SEO crawler for macOS, Windows and Linux. Find what is broken, assign the work, then verify every fix. Crawl data stays on your machine.
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