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Internal Link Graph

Discover the hidden architecture of your site's link graph in minutes. Our crawler fetches your homepage + sitemap.xml, then performs a BFS crawl (up to 20 pages) to build a complete internal link graph. Identify pages that are invisible to Google (orphans), your site's authority centers (hubs), and pages that need more internal links to improve crawlability and SEO distribution.

How it works

A short, focused workflow — input, run, read the result.

Enter your site URL
Paste your homepage URL (like https://example.com). The tool crawls up to 20 pages via sitemap + BFS.
Review the link graph summary
See the overall health score (A-F) and how many pages were crawled vs. discovered.
Address weak areas
Fix orphans by adding links, strengthen hubs by keeping them updated, and boost underlinked pages.

What is an internal link graph, and why does the structure of your links matter for SEO?

An internal link graph is the map of how pages on your site link to each other. Google uses it to discover pages, distribute authority, and understand topical relationships. A broken or lopsided graph means some pages get none of the equity your homepage earns.

Every site has a link graph whether you think about it or not. It is the set of connections formed by the internal links across your pages. Google's crawler follows these connections to find new pages, decide which pages matter most, and pass authority from your strongest pages to the ones you want to rank. When the graph is healthy, every important page is reachable from the homepage in 3 clicks or fewer, and authority flows toward your money pages.When the graph is broken, you end up with orphan pages (no internal links point to them), dead-end pages (no outbound internal links), and hub pages that are wildly over-connected while key content sits isolated. The HubSpot blog famously analyzed 100,000+ pages and found that 75% of pages get fewer than 3 internal links. Those pages lose crawl priority, which means Google visits them less often, which means they rank worse over time.Our internal link graph tool crawls your homepage, follows the sitemap, and BFS-walks up to 20 pages to build the full graph. You see which pages are orphan, which are hubs, and which are underlinked. From there, the natural next step is the internal link anchor generator (suggested anchor text for new links) and the internal link suggestions tool (specific places to add links from existing content). Three tools, one workflow, no guesswork about your site architecture.

Pages crawled per audit (BFS depth limit)

Recommended click depth from homepage

75%

Of pages get fewer than 3 internal links (HubSpot data)

What this internal link graph tool maps

Every structural signal in your site's link graph, surfaced in one visual map.

Orphan pages — pages with zero internal links pointing to them. Google may never discover or rank them.
Hub pages — pages that receive the most inbound internal links. These are your site's authority centers.
Click depth — the number of clicks from the homepage to reach any given page. Aim for 3 or fewer.
Underlinked content — pages that exist but receive only 1-2 internal links. They are visible but undervalued.
Dead-end pages — pages that have no outbound internal links. They trap both users and crawlers.
Link equity flow — visualizes how authority moves from hub pages outward to leaf pages through the graph.
Topical clusters — groups of pages that link to each other heavily, signaling topical authority to Google.
Crawl priority — pages with the most inbound links get crawled most often, which keeps them fresh in the index.

Who uses this internal link graph tool

Anyone who has built out a site over months or years and suspects the link architecture has drifted.

In-house SEOs

You have 500+ published posts and you suspect the older ones never get internal links from newer content.

Find every orphan and underlinked page in one map, prioritize the highest-traffic-potential ones for an internal linking sprint.

Content marketers

You publish 4 posts a week and have no idea which existing posts should link to each new one.

Spot topical clusters you can reinforce and gaps where new posts should reference older cornerstone content.

Agencies

You're auditing a new client site that ranks poorly and you need a structural view of the problem fast.

Show the client their orphan pages and underlinked money pages in a visual the whole team understands.

Bloggers

You've been writing for 3 years and your older posts have decayed because newer posts never link back to them.

Identify the 5-10 cornerstone posts that deserve more inbound links and plan a refresh.

Ecommerce managers

You have 1,000 product pages and 200 category pages, but your category pages aren't linking to the right products.

Rebuild the graph around your money categories and watch those pages get crawled more often.

Developers

You just migrated a site and want to verify the new link structure makes sense.

Compare the pre-migration and post-migration graphs and catch broken internal navigation early.

Related glossary terms

Want a deeper dive? These glossary entries explain the concepts behind this tool.

Frequently Asked
Questions

Everything you need to know about internal link graphs and their impact on SEO.

We fetch your homepage and sitemap.xml, then perform a Breadth-First Search (BFS) crawl to map internal links. We identify orphans (pages with 0 inbound), hubs (pages with many inbound), and underlinked pages (1-2 inbound links). The crawl depth is 1-2 levels to stay within our crawl budget of 20 pages.

Orphan pages have no internal links pointing to them, so Google may never discover them via your site's internal crawl. This means they may not be indexed or ranked, even if the content is valuable. Orphans can be found via external links or sitemaps, but they receive no 'link juice' from your site's internal structure.

Hub pages are the most-linked-to pages in your site. These are your authority centers. Google often ranks hub pages higher because they receive the most internal signals. Orphan pages receive no internal inbound links, making them virtually invisible to your site's internal crawl.

We crawl up to 20 pages per site. We start with your homepage and any pages listed in sitemap.xml, then expand with BFS until we hit the limit or run out of new pages. This balances thorough analysis with being respectful to server resources.

Yes. We crawl your site once per analysis session, store no crawled content, and do not use the data for training. Rate limit is 3 crawls per hour per IP to prevent server strain.

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