Structural SEO Academy
Master structural SEO.
Learn how internal links, authority flow, crawl architecture, and topical clusters decide your rankings — each guide paired with a free tool so you can act on it immediately. Want to see how RankForge measures it all? Read the methodology.
Start here
New to structural SEO? Read these five in order — each builds on the last.
Methodology
RankForge ResearchUnderstanding authority distribution
How internal authority spreads across a site — sinks, leaks, dilution, hub pages and homepage bias — plus what healthy distribution looks like.
Read articleHow RankForge calculates authority flow
A technical walkthrough of how RankForge models internal authority flow — PageRank, damping, link weighting, nofollow — and turns it into fixes.
Read articleHow RankForge calculates the Structural Health Score
The philosophy behind RankForge's Structural Health Score: why one composite number, what it scores, and why a score is not a ranking prediction.
Read articleHow topical clusters are detected
The methodology behind cluster detection: the structural and semantic signals RankForge combines to find pillars and their supporting groups.
Read articleMeasuring pillar strength
What makes a pillar page strong or weak — inbound support, bidirectional linking, depth and anchor quality — and how RankForge scores it.
Read articleContent coverage analysis methodology
Coverage is not word count. How RankForge thinks about topic completeness, search intent, subtopic gaps, and which opportunities are worth building.
Read articleCore concepts
Crawl depth explained
Crawl depth is how many clicks a page sits from your homepage. Why deeper pages are crawled less and rank worse, and what a healthy depth looks like.
Read articleWhy internal links matter more than most SEOs think
Internal links are the most underrated lever in SEO: free, fully under your control, and what decides whether your backlinks reach the right pages.
Read articleWhat is link equity?
Link equity is the ranking value a link passes on. Where it comes from, how it splits and decays, and how to concentrate it on the pages that matter.
Read articlePageRank explained for modern SEO
The toolbar score is dead; the algorithm isn't. How PageRank works, why it still governs internal authority, and how to use it today.
Read articleContextual links vs navigation links
Why search engines value an in-body contextual link far more than a sitewide nav or footer link — and what auditing only your navigation misses.
Read articleInternal authority flow
Internal authority flow is how link equity moves between your pages. How authority travels, what blocks it, and how to route it to pages that matter.
Read articleContent clusters
Content clusters wire a pillar page to supporting articles with internal links. The pillar model, hub pages, and the mistakes that break them.
Read articleAuthority travel distance
How far internal authority has to travel to reach a page, and why that distance matters. How decay works, and how to shorten the path to key pages.
Read articleOrphan pages
An orphan page has no internal links pointing to it, so it's barely crawled and rarely ranks. What causes them, and how to recover the ones worth keeping.
Read articleTopical authority
Topical authority is how comprehensively your site covers a subject — distinct from domain authority. How clusters, pillars and internal links build it.
Read articleAnchor text relevance
Anchor text is the clickable words of a link, and a relevance signal you control. Generic vs exact vs partial match, and how to avoid over-optimising.
Read articleGenerative Engine Optimization (GEO): the complete guide
How to make your site readable and citable by ChatGPT, Perplexity and AI Overviews: llms.txt, entity schema, crawlable content, and the structure behind it.
Read articleHow-to guides
The complete internal linking strategy guide
A full internal linking strategy — hierarchy, clusters, pillars, anchor text and authority routing — in one end-to-end playbook for SEOs.
Read articleHow Google crawls vs. indexes vs. ranks websites
Crawling, indexing and ranking are three distinct stages people constantly conflate. What each does, where each fails, and how structure affects them.
Read articleCommon internal linking mistakes
The internal-linking mistakes that quietly cap rankings: mega-menus, generic anchors, orphaned content, and authority left pooled on the homepage.
Read articleInternal linking for documentation sites
Docs sites lean on sidebar nav and search, so reference pages stay orphaned. How to fix internal linking for documentation and build real clusters.
Read articleWhat makes a good site architecture
Good site architecture routes discovery and authority to the pages that matter: shallow depth, real clusters, no orphans. The full checklist.
Read articleMeasuring crawl efficiency
Crawl efficiency is how much of Googlebot's effort lands on pages you actually want indexed. Why it matters, what wastes it, and how to improve it.
Read articleHow often should you audit internal links?
Internal-link audit cadence depends on how fast your site changes. The events that should always trigger one, and sensible intervals by site type.
Read articleHow Google discovers new pages
Discovery is a graph walk, not magic. How Googlebot finds new pages, why sitemaps aren't enough, and how to get new content found fast.
Read articleHomepage authority distribution
Your homepage is usually your strongest page, and its outbound links decide where that authority goes first. Why linking to everything wastes it.
Read articleInternal linking best practices
The internal-linking rules that actually move rankings: contextual over boilerplate, descriptive anchors, shallow depth, deliberate authority flow.
Read articleFlat vs deep site architecture
Flat architecture keeps pages a few clicks from the homepage; deep architecture buries them. Why flatter usually wins, and when depth is fine.
Read articleSilo structures: myth vs reality
The rigid SEO silo — cut all cross-links to keep topics 'pure' — is mostly myth. What's true about topical grouping, and what's cargo-cult.
Read articleHow to find and fix orphan pages
Orphan pages have no internal links pointing to them, so they rarely rank. How to find them, decide which are worth fixing, and reconnect them.
Read articleHow to fix keyword cannibalization
When two pages target the same keyword they compete and both underperform. How to confirm it, then consolidate, differentiate or redirect.
Read articleHow to improve crawl depth and surface buried pages
Pages buried deep from the homepage rank worse. How to measure crawl depth, shorten the path to what matters, and avoid flattening into a mess.
Read articleHow to build topic clusters and pillar pages
How to build topic clusters from content you already have: choosing the pillar, scoping supporting pages, and wiring the links in both directions.
Read articleHow to use Google Search Console for internal linking
Search Console shows which pages are stuck on page 2, but not why. How to turn that into a prioritised internal-linking plan that moves them up.
Read articleHow to find orphan pages in Screaming Frog
A crawl alone can never find an orphan page. The Crawl Analysis workflow — sitemap, GA and Search Console sources — that surfaces them in Screaming Frog.
Read articleHow to find orphan pages in Google Search Console
Search Console has no orphan page report — but it holds the two datasets that reveal them. Here's the free subtraction method, and where it stops working.
Read articleHow to find and fix orphan pages on WordPress
WordPress creates orphan pages structurally: pagination, noindexed archives, attachment pages and page-builder templates. What causes each, and the fix.
Read articleGPTBot vs OAI-SearchBot: which one should you actually block?
Blocking GPTBot stops OpenAI training on your content. It does not stop ChatGPT citing you — that's OAI-SearchBot, and most robots.txt get it wrong.
Read articleShould you block AI crawlers?
Blocking AI crawlers protects your content from training but can remove you from AI citations. Here's the actual trade-off, split by site type — with no agenda.
Read articleAI crawler user-agents: the full reference list
Every major AI crawler user-agent, what it's for, who runs it, and what blocking it actually costs — split by training crawlers and answer engines.
Read articleThe Ahrefs internal links report: how to use it, and where it stops
How to find and read Ahrefs' internal link reports and Link Opportunities: the columns that matter, and the two things the report can't tell you.
Read articleHow to find keyword cannibalization in Google Search Console
A Search Console workflow for finding keyword cannibalization: query filters, the Pages tab, position instability, and regex at scale.
Read articleKeyword cannibalization vs duplicate content
Keyword cannibalization and duplicate content overlap but need different fixes. How to tell which one you have, and why the wrong fix makes it worse.
Read articleWhen keyword cannibalization is fine (and when it isn't)
Keyword cannibalization is the most over-diagnosed problem in SEO. When two pages ranking for one query is fine, when it costs you, and how to tell.
Read articleKeyword cannibalization on ecommerce sites
Ecommerce cannibalization comes from facets, variants and overlapping categories, not blog posts. How to find it, what to index, and how to fix it.
Read articleKeyword cannibalization on WordPress sites
WordPress generates cannibalization through tag, category, author and date archives. Which to index, how to find the overlaps, and how to fix them.
Read articleWhat is the ideal click depth for SEO?
There is no universal ideal click depth, but there is a target that scales with site size. How to set yours, and why average depth misleads.
Read articleCrawl depth vs crawl budget
Crawl depth and crawl budget get confused constantly. What each one is, how depth spends budget, and which is actually your bottleneck.
Read articleThe 3-click rule in SEO: myth, useful heuristic, or both?
The 3-click rule came from 2001 research that its own follow-up disproved. Why it survives in SEO, where it is genuinely useful, and what to use instead.
Read articleHow to reduce crawl depth on WooCommerce
WooCommerce buries products behind pagination and filter URLs. How to find deep pages, fix pagination depth, and bring revenue products closer.
Read articleHow to reduce crawl depth on Shopify
Shopify's URL structure and pagination bury products. How collections, tags and /collections/all affect depth, and what brings products closer.
Read articleHow to find and fix orphan pages on Shopify
Shopify orphans products silently: unassigned products, emptied collections, hidden pages and blog posts nothing links to. How to find them and reconnect them.
Read articleHow to find and fix orphan pages on Webflow
Webflow orphans CMS items when a Collection List is filtered or limited, and static pages when they are never linked. How to find them and wire them back in.
Read articleCase studies
19,778 impressions, 20 clicks: what our own Search Console data revealed
Our own site had 19,778 impressions and 20 clicks in 90 days. Joining Search Console to the internal link graph showed why — and which five links fixed it.
Read articleWe ran RankForge on RankForge: a structural SEO case study (79 → 87)
Authority Distribution was stuck at 41 on our own site and dragging the score down. The diagnosis, the few links that fixed it, and the result: 79 → 87.
Read articleHow shorter.gg raised its structural health from 67 to 83 while tripling its content
shorter.gg tripled its content in two weeks and its structural health rose 67 → 78 → 83 instead of collapsing. The play, the regression, the honest numbers.
Read articleSEO terms explained
What is a pillar page?
A pillar page is the hub of a topic cluster: one comprehensive page on a broad subject that supporting pages link up to, and that links back down to them.
Read articleWhat is Generative Engine Optimization (GEO)?
GEO is optimizing your site to be read, understood, and cited by AI engines like ChatGPT and Perplexity — how it differs from SEO, and where llms.txt fits.
Read article