What Is Link Depth?
Link depth measures how many clicks a user or crawler must make to reach a page starting from the homepage. The homepage itself is depth 0. A page directly linked from the homepage navigation is depth 1. A page linked from a depth-1 page (but not from the homepage directly) is depth 2, and so on.
Depth is calculated as the shortest path through the internal link graph. A page might technically be discoverable via a twelve-click path through obscure archive pages, but if it is also linked from a depth-2 category page, its link depth is 3 — the shortest path.
Link depth correlates strongly with two SEO metrics: crawl frequency and internal PageRank. Crawlers allocate their budget based partly on depth — shallow pages are revisited more often than deep ones. Internal PageRank decays with each hop because each intermediary page dilutes the equity it passes.
- Depth 0 = homepage; depth 1 = one click from homepage; depth N = N clicks from homepage
- Depth is measured as the shortest available path through the internal link graph
- Higher depth means less crawl frequency and lower internal PageRank accumulation
How Link Depth Affects SEO
Googlebot and other crawlers prioritize shallow pages when allocating their crawl budget. A page at depth 2 is revisited far more often than a page at depth 6. For rapidly updated content — news articles, product inventory changes — high link depth means updates are discovered slowly, potentially delaying ranking reactions.
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See your internal link equity in 30 seconds →Internal PageRank also decays with depth. Each page passes a fraction of its PageRank to outbound links, so the further from the homepage a page sits, the less cumulative PageRank it receives through the chain of links. High-priority pages buried at depth 5 or 6 are structurally disadvantaged even if their content is excellent.
The practical threshold is depth 4. Most SEO practitioners target keeping important pages within 4 clicks of the homepage. Pages at depth 5 and beyond are at significant risk of reduced crawl frequency. Pages at depth 7 or higher may receive minimal crawl attention on large sites.
- Crawl budget is partially allocated by depth — shallow pages are visited more frequently
- PageRank decays through each hop — depth-5 pages receive far less equity than depth-2 pages
- Keep all important pages within 4 clicks of the homepage as a practical threshold
How to Measure Link Depth
Screaming Frog reports click depth for every URL in a crawl. Look at the Level column in the Internal report — this shows the shortest path depth from the start URL (typically the homepage).
After uploading your crawl to LinkJuice, you can filter pages by depth and cross-reference with their inbound link counts. Pages with high depth and low inbound link counts are the most vulnerable — they are both hard to reach and structurally weak.
Pay particular attention to pages that are strategically important but showing high depth: conversion pages, pillar pages, key product or service pages. These are your priority targets for depth reduction.
- Screaming Frog click depth column — shows shortest path depth for every crawled URL
- Filter high-depth + low-inbound-links in LinkJuice to find structurally vulnerable important pages
- Focus depth reduction efforts on pages with the highest business value
How to Reduce Link Depth
The most effective way to reduce depth is to add direct internal links from shallow, high-authority pages to deep, high-value pages. If a critical product page sits at depth 6, adding a link to it from the homepage or a depth-1 category page immediately reduces its depth to 2.
Site architecture changes also reduce depth at scale. Adding a new top-level navigation section, creating a hub page that aggregates links to important deep pages, or restructuring category hierarchies can reduce depth for hundreds of pages at once.
Avoid creating flat architectures that put every page at depth 1 — this spreads homepage PageRank too thinly and creates an unnavigable site. The goal is to keep high-priority pages shallow, not to make all pages equally shallow.
- Add direct links from shallow pages to important deep pages — most effective single action
- Create hub or aggregator pages at depth 2–3 that link to clusters of deep priority pages
- Do not flatten architecture universally — concentrate shallowness on high-priority pages only
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Find your site's weakest links before Google does →Frequently Asked Questions
- What is link depth in SEO?
- Link depth (or click depth) is the minimum number of internal link clicks required to reach a page starting from the homepage. Shallower pages receive more crawl budget attention and accumulate more internal PageRank.
- What is a good link depth for SEO?
- Most SEO practitioners target a maximum depth of 4 for important pages. Pages at depth 1–3 are in a comfortable range. Pages at depth 5 and beyond begin to show reduced crawl frequency and weaker internal PageRank on typical large sites.
- How does link depth affect PageRank?
- PageRank decays with each hop because each linking page divides its equity among all its outbound links. A page at depth 5 has received five rounds of dilution along its path from the homepage, accumulating significantly less internal PageRank than an equivalent page at depth 2.
- How do I reduce link depth for a specific page?
- Add a direct internal link to the target page from a shallow, high-authority page — ideally from the homepage, main navigation, or a depth-1 category page. This immediately makes the target accessible in one additional click from that source, reducing its effective depth.
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