Google’s Helpful Content Update in August 2023 didn’t just penalise AI slop and affiliate farms. It also changed how the algorithm weighs internal link structure when determining which pages deserve to rank.
Most coverage focused on the content-quality signals—understandably. But buried in the technical SEO weeds was a shift in how PageRank flows through site architecture, and it’s been quietly reshaping traffic distribution for sites that rely on pillar content and hub pages.
If you run a content site and noticed certain cornerstone posts losing traffic while thinner, newer pages climbed, this is probably why.
What changed: context over volume
Before August 2023, internal linking operated on a fairly predictable model: the more internal links a page received, the stronger its ranking potential. Hub pages with dozens of inbound links from across your site carried the most authority.
The update introduced a contextual weighting layer. Now, Google evaluates not just how many internal links point to a page, but where those links come from and how topically related the linking page is to the target.
A link from a closely related article on the same subtopic carries significantly more weight than a boilerplate footer link or a sidebar widget linking to your “Best Of” archive. Volume still matters, but relevance matters more.
This explains why some sites saw their sprawling hub pages—previously propped up by sitewide navigation links—lose rankings, while deep, narrowly focused articles with fewer but more contextually relevant inbound links gained ground.
How to audit your internal link structure now
Pull a Screaming Frog or Sitebulb crawl of your site and export the internal link report. You’re looking for two patterns:
Pattern one: High-value pages that receive most of their inbound links from unrelated posts or sitewide elements (header, footer, sidebar). These pages are vulnerable. Their authority is inflated by low-context links that no longer carry the weight they used to.
Pattern two: Deep posts with strong topical relevance to your most important pages, but zero or one internal link pointing to those hubs. These are missed opportunities. A single contextual link from a related deep-dive post now moves the needle more than five generic sidebar links.
Run a topic-cluster map. Group your posts by semantic similarity—use a spreadsheet, Airtag clusters in Ahrefs, or even a manual pass. Then cross-reference: do your most important pages have internal links from at least three to five posts within the same cluster?
If not, add them. But don’t force it. A link from a post about WordPress caching to a post about email deliverability doesn’t help either page. Relevance is the gate.
What breaks when you over-optimise
The temptation is to stuff every related post with links to your cornerstone content. Resist it.
Google’s algorithm now appears to discount internal links that appear in identical boilerplate text across multiple pages. If you’re using the same call-out box or inline CTA in twenty posts, all linking to the same hub page, those links are being treated as low-signal.
Variation matters. Each internal link should be contextually integrated into unique sentences. Yes, that takes more time. But the alternative is a bunch of links that register as noise.
Also: don’t orphan your older content. If you’ve been publishing for years and your early posts don’t link to anything else on your site, they’re functionally invisible to the new weighting model. A quarterly audit to add a few contextual internal links to older posts will lift their discoverability and stabilise traffic.
Practical next step
Pick your three highest-value pages—the ones that drive email signups, affiliate clicks, or product sales. Export every page on your site that ranks for a related keyword or covers a related subtopic. Go through that list and add one or two contextual internal links from those related posts to your high-value pages.
Track organic traffic to those three pages over the next 30 days. If you’ve been relying on sitewide navigation or footer links to prop them up, you’ll likely see a lift once the relevance signal kicks in.
This isn’t a one-time fix. Internal link structure is now a living part of your content strategy, not a set-it-and-forget-it SEO checkbox. Treat it like ongoing editorial work, and it’ll pay dividends in stabilised rankings and more predictable traffic.
Got a question about your own site’s internal link structure? Hit reply—I read every response and often turn reader questions into future deep-dives.