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Free tool · Crawl and sitemap

Free Website Structure Checker

We crawl your site and read your sitemap, then show exactly what to fix: broken links, pages nothing links to, pages buried too deep and gaps in your sitemap.

  • Free, no sign-up
  • Follows your links
  • Reads your sitemap
  • Respects robots.txt

We follow your links from the homepage and read your sitemap.

How many pages to check

Ctrl or ⌘ + Enter also submits

100% free No sign-up Nothing stored

The basics

Why site structure matters for SEO

What is site structure?

How your pages link together: the homepage at the top, sections below it, detail pages at the end. A clear structure helps Google find every page and helps people find what they came for.

What goes wrong

  • Broken links send visitors and crawlers to dead ends
  • Pages nothing links to are hard for Google to find
  • Pages more than 3 clicks deep get crawled less often
  • A sitemap that lists redirects or misses pages slows indexing

What Google wants

Every important page a few clicks from the homepage, related pages linked together, and a sitemap that lists only the live pages you want in search. This checker tests each of those.

Behind the scenes

How it works

Find

We read your robots.txt and find your sitemap.

Crawl

We follow your links from the homepage, up to 500 pages.

Compare

We match what your links show against what your sitemap lists.

Report

You get a score, your top fixes and the exact pages to change.

We only fetch public pages, obey robots.txt, never log in and store nothing. Our crawler shows in your logs as SEOFirstWeb.

Reading the results

How to read your results

Click depth is the fewest clicks it takes to reach a page from the homepage. Keep your important pages within 3.

Orphan pages are in your sitemap but nothing links to them: link to them from a related page, or take them out of the sitemap. Pages missing from the sitemap are the opposite: linked, but not listed.

The tree puts each page under the page that first links to it. Switch to By folders to see your URL structure instead. Planning a bigger change? Read our guide to redesigning a website without losing rankings, then check external links with the broken link checker and indexing with the index checker. For AI search, the llms.txt generator reads the same sitemap.

Frequently asked questions

Short answers about how the checker works and what it can find.

How does the website structure checker work?

Enter your address and we follow the links on your site from the homepage, up to 250 or 500 pages, while reading your XML sitemap. We then compare the two to find broken links, orphan pages, pages buried too deep and gaps in your sitemap.

What is an orphan page?

A page with no internal links pointing to it. We flag pages that are in your sitemap but that none of the pages we checked link to. If the crawl stopped before the whole site was checked, the report says so, because the link could be on a page we did not reach.

What is click depth?

The fewest clicks it takes to reach a page from the homepage by following real links. Keep important pages within 3 clicks: deeper pages tend to be crawled less often and rank lower.

What if my site doesn't have a sitemap?

The crawl still works from your links, and the report flags the missing sitemap. Most platforms (WordPress with Yoast or Rank Math, Shopify, Webflow, Squarespace) can create one for you. If your sitemap is somewhere unusual, add its address under I have a specific sitemap URL.

What if my site blocks crawlers?

If the homepage refuses us, or robots.txt blocks our crawler (SEOFirstWeb), we read your sitemap instead and tell you that links were not checked. If the sitemap is blocked too, paste your page URLs or sitemap XML and the check runs in your browser.

How many pages can it check?

Up to 500 pages per check and 600 pages a day from one connection. Sitemaps are read up to 10,000 URLs. For bigger sites, check one section at a time or use a desktop crawler.

How is the score worked out?

It starts at 100 and each problem takes off points, more when it affects more pages. Broken links cost the most, then orphan pages, deep pages and sitemap errors. The report shows exactly where every point went.

Can I export the results?

Yes. Every finding has Copy and CSV buttons, the full page list downloads as CSV (click depth, status, sitemap, links in, title and problems), the tree saves as PNG or SVG, and Print report gives a clean A4 summary.

Will this slow down or harm my site?

No. We fetch public pages only, 4 at a time with a short pause between them, obey robots.txt, and never log in or submit forms.

Do you store my data?

No. Pages are fetched, checked and discarded, and nothing is saved on our side. A shared results link holds only your domain, and the check runs again when someone opens it.

How is this different from a desktop crawler?

A desktop crawler gives far more detail and handles very large sites, but needs installing and setting up. This checker runs in your browser and turns the crawl into a short list of fixes. Use it for a quick structure check; use a desktop crawler for sites with thousands of pages.

Other free SEO tools

Robots.txt Generator

Build a robots.txt with AI bot controls and install guides for each platform.

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SEO Audit

Lighthouse scores, a security grade and a prioritised action plan for any page.

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Schema Validator

Paste any URL, see every schema block and get plain-English fixes.

Open tool →

Want a human to walk you through the fixes?

Send us your website address on WhatsApp and we will tell you what is worth fixing first, free and with no obligation. Or pick the service that fits.

  • Find what to fix

    £295

    SEO Audit: a full review of your site, a prioritised fix list and a 30-minute call to walk you through it.

    See SEO services
  • Build you a new website

    From £900

    Fast, mobile-friendly websites with SEO set up from launch. Fixed prices from £900, no VAT to add.

    See web design packages
  • Grow your traffic every month

    From £250 a month

    on the 6-month plan, £1,500 paid upfront

    Monthly SEO: technical, local and content work with plain-English reporting. No long contracts: SEO plans run for 1, 3 or 6 months, paid upfront, and nothing renews automatically.

    See Monthly SEO

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