PageRank is Google's original algorithm for measuring link authority. The informal name "link juice" captures the intuition: authority flows through links, like water through pipes. A high-authority page linking to yours pours some of its authority into your page. You can then direct that authority further by linking to other pages you want to rank.
Google doesn't publish PageRank scores anymore, but the underlying mechanism still operates — it's just one of hundreds of signals in the ranking algorithm. The practical consequence: the number and quality of pages linking to a URL determines a significant portion of that URL's ranking potential. This guide explains the mechanics and the practical implications for how you structure internal linking.
Key Takeaways
- Link juice (link equity) is the SEO authority that passes from one page to another through followed links
- A page distributes its equity equally among all its followed outbound links — more links = less juice per link
rel="nofollow"prevents juice from flowing; the attributed equity is not redistributed to other links- 301 redirects pass ~99% of link juice to the destination; 302 redirects pass less, and redirect chains dilute further
- Broken internal links waste the juice flowing into them — pages linking to 404s are sending equity nowhere
How PageRank Flows
PageRank works on a simple principle: every page starts with some base authority. When that page links to other pages, it distributes a fraction of its authority to each linked page. The fraction each linked page receives is roughly: (page authority × damping factor) / number of followed outbound links.
The damping factor (originally 0.85 in Google's public documentation) models the probability that a random user keeps following links rather than jumping to a random page. It means authority decays slightly with each hop — but only slightly. Pages two or three links deep from your homepage can still receive meaningful equity.
The key implications:
- More links from a page = less juice per link. A page with 3 outbound links passes 33% of its distributable equity to each. With 30 links, each receives ~3%. Adding unnecessary links to a page dilutes the juice going to every link on that page.
- Equity accumulates at linked-to pages. Pages that receive many internal links from high-authority pages collect significant equity. This is why your homepage almost always has the most link equity — it's linked from every other page on the site.
- Deep pages can be equity-starved. Pages only reachable through 5 or 6 clicks from the homepage may receive very little link equity — not because they lack inbound links, but because equity decays across each hop in a chain.
External Links vs Internal Links
External backlinks (links from other sites) introduce new authority into your site's link graph. Every legitimate backlink from an authoritative page increases the total equity pool your site has to distribute internally.
Internal links redistribute that equity. If you have 500 backlinks pointing to your homepage, those 500 links have collectively concentrated authority on your homepage. Internal links from the homepage to product pages or blog posts pass fractions of that authority further into the site.
The strategic implication: identify which pages receive the most external backlinks (your "link magnets" — often the homepage, popular blog posts, or press-covered pages) and build deliberate internal links from those pages to the pages you most want to rank. This is link equity sculpting — directing existing authority to ranking priorities.
What Blocks or Dilutes Link Juice
| Factor | Effect on link juice |
|---|---|
rel="nofollow" |
Juice does not flow; the equity attributed to that link is discarded, not redistributed |
rel="sponsored" or rel="ugc" |
Same as nofollow for link equity purposes |
| 301 redirect chain (A → B → C) | Each hop reduces transmitted equity ~10–15%; 3-hop chain loses ~30–40% |
| 302 redirect (temporary) | Google may not fully transfer link equity; canonical signals remain on the source |
| Link to 404 page | Juice flows to the 404 and is lost — the broken destination absorbs the equity |
| Page blocked by robots.txt | Google cannot crawl the page; equity sent to it cannot be redistributed further |
| Noindexed page | Equity can still pass through a noindexed page if it has outbound links — noindex ≠ nofollow |
| Excessive outbound links | Each additional link dilutes the juice per link; avoid 100+ links on a single page |
Internal Linking Strategy for Link Equity
Link from high-authority pages to high-priority targets. Your homepage, your most-linked-to blog posts, your most trafficked category pages — these are your equity sources. Add contextual internal links from these pages to the pages you want to rank. One internal link from a page with 50 external backlinks is worth more than 20 internal links from pages with zero external backlinks.
Reduce link count on high-authority pages. If your homepage links to 80 different pages via footer links, nav links, and body links, each one receives a very small equity share. Consolidating link targets on high-authority pages concentrates the equity passing to each linked page.
Minimise redirect chains. If page A links to page B which 301-redirects to page C, the equity degrades at each hop. Clean redirect chains to be direct single-hop wherever possible. Run a site crawl periodically to identify redirect chains that have grown over time through iterative site changes.
Fix broken internal links immediately. A broken link sends equity to a non-existent page. That equity is wasted. When a page is deleted or moved, update or remove all internal links pointing to it — or add a redirect so the equity flows to the new destination.
Avoid orphaned pages. Pages with no internal links pointing to them receive no link equity regardless of their external backlinks, because there's no link path for equity to flow along. Every indexable page should be reachable from at least one other page via a followed internal link.
Using the Link Checker for Internal Link Audits
The ByteWaveNetwork Link Checker crawls every page on your site and maps every internal link, including their HTTP status codes. This surfaces:
- Broken internal links (404s) — every internal link pointing to a 404 is wasting juice; the Link Checker shows the source page and the broken destination so you can fix or remove each one
- Redirect chains — links that go through one or more 301/302 redirects before reaching their destination; cleaning these preserves more equity per hop
- Pages with very few inbound internal links — pages that appear rarely as link destinations are likely equity-starved; the Link Checker's "Found On" column shows which pages link to each URL
Running this crawl after any significant content change or migration is a standard equity health check — ensuring no broken links are silently draining link juice away from pages that need it.
Audit Internal Links for Broken and Redirect Issues
Free, no signup. The Link Checker crawls your entire site and flags broken internal links, redirect chains, and slow pages — the internal link problems that silently waste link equity.
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