Here's a quick test: pick five random posts from deep in your blog archive, ones from two or three years ago. Now try to remember the last time anything on your site linked to them.
If you're drawing a blank, you're not alone. Most sites accumulate a graveyard of pages that used to get a link or two from the homepage or a category page, and then quietly stopped getting linked to as the site grew and new content buried them. Nobody deleted these pages. Nobody's actively linking to them either. They're just sitting there, invisible to both readers and search engines that would otherwise crawl in from another page.
That's usually the first sign you need an internal linking audit. A few other signs: you've migrated URLs recently and never systematically checked what broke, you've got a handful of high-value pages that aren't ranking despite good content, or you genuinely have no idea how many pages on your site currently get zero internal links.
This post walks through the full audit process, gives you an embeddable checklist, and tells you how to prioritize what you find so you're not staring at a spreadsheet of 200 issues with no idea where to start.
One thing worth saying before we get into it: this isn't a one-and-done project. It's closer to a recurring maintenance task, like changing the oil in a car. The first pass on a site that's never had one usually turns up the most issues and takes the longest. Every round after that should be faster, because you're catching problems while they're still small instead of after years of neglect.
Why internal linking actually affects rankings
It's worth being specific about the mechanism here, because "internal linking matters for SEO" gets repeated so often it stops meaning anything.
Link equity flow. When one page links to another, it passes along some of its own authority signal. A page with lots of internal links pointing to it, especially from other authoritative pages on your site, tends to be treated as more important than a page nobody links to. Your homepage and top pages usually accumulate the most external links and authority — internal linking is how you route some of that value to the pages you actually want to rank.
Crawl depth and discovery. Search engine crawlers find new and updated pages primarily by following links. A page that's four or five clicks deep from your homepage, with no other pages linking to it, gets crawled less often and discovered more slowly than a page one or two clicks away. If a page is never linked to at all — a true orphan — a crawler might not find it through internal navigation at all, only through your sitemap, if it's even in there.
Context and relevance signals. The anchor text and surrounding content of an internal link tells search engines something about what the linked page is about. A page that's linked to consistently with varied, relevant anchor text builds a clearer topical signal than a page that's never referenced by name anywhere else on the site.
None of this is exotic. It's the same logic that made backlinks matter for the whole web, applied to the links you fully control within your own site.
There's a fourth, less-discussed reason this matters: user behavior signals. A reader who lands on a page, finds no relevant next step, and leaves isn't just a lost pageview — that short, single-page visit is itself a weak signal that the page didn't fully satisfy them. A well-linked page that guides a reader to two or three genuinely relevant next reads tends to keep people on the site longer and gives them more chances to find what they actually came for. None of this is a direct, documented ranking factor the way link equity flow is, but it's a real business reason to care about internal linking even before you get to the more technical arguments.
The step-by-step audit process
Step 1: Crawl your entire site
Start with a full crawl using a tool like Screaming Frog (free for up to 500 URLs, licensed for more) or your SEO platform's built-in site audit (Ahrefs and Semrush both include this). The crawl needs to follow every internal link it finds, the same way a search engine bot would, and record how many inbound and outbound internal links each page has.
Export this as your baseline dataset. You'll be filtering and sorting it a lot over the next few steps, so a spreadsheet or the tool's built-in filtering is your workspace for the rest of the audit.
Step 2: Map orphan pages
Orphan pages are pages that exist and are indexable, but have zero internal links pointing to them from anywhere else on the site. Most crawlers will flag these directly, but if yours doesn't have a built-in report, cross-reference your full URL list (from your sitemap or CMS export) against the list of pages your crawler actually discovered by following links. Anything in your sitemap but never reached by crawling is a strong orphan candidate.
Pay particular attention here to pages that used to get traffic and rankings but have quietly dropped — orphaning is a common, easy-to-miss cause.
Step 3: Check anchor text diversity
Pull a report of every internal link pointing to your most important pages, along with the anchor text used. You're looking for two opposite problems: anchor text that's so repetitive it looks manipulative (the exact same exact-match phrase every single time), and anchor text so generic ("click here," "read more") that it carries no topical signal at all.
Healthy anchor text profiles use natural variation — the target keyword sometimes, close variants and related phrases other times, and the occasional generic link mixed in because that's how humans actually write.
Step 4: Measure link depth
Link depth (or crawl depth) is how many clicks it takes to reach a page starting from your homepage, following the shortest available path. Most crawlers calculate this automatically. As a rule of thumb, your most important pages — the ones you most want to rank — should sit within two to three clicks of the homepage. Pages sitting five or six clicks deep are both harder for crawlers to prioritize and harder for actual visitors to stumble onto through navigation.
Sort your crawl data by depth and cross-reference against pages you consider high-priority. Any mismatch (an important page buried deep) is a clear fix candidate.
Step 5: Identify over-linked and under-linked pages
Plot your pages by number of inbound internal links. You'll typically see a small cluster of heavily-linked pages (usually the homepage, main category pages, and a few cornerstone posts) and a long tail of pages with just one or two inbound links, or none.
The fix isn't to link everything equally — that's neither realistic nor useful. It's to make sure the pages you actually want to rank are getting a reasonable share of internal links relative to their importance, and that nothing genuinely valuable is sitting in that long tail by accident rather than by design.
Step 6: Check for broken internal links
While you're crawling anyway, pull the report on internal links pointing to 404s or redirect chains. These usually pile up after content deletions or URL structure changes nobody went back and fully cleaned up. Every broken internal link is link equity going nowhere and a small but real dent in user experience.
Step 7: Check contextual relevance, not just link count
A page can have plenty of internal links pointing to it and still have a linking problem, if none of those links come from genuinely related content. Ten inbound links from completely unrelated pages, using awkward, forced anchor text, send a weaker topical signal than three or four links from closely related articles using natural phrasing.
Spot-check your top pages by reading the actual sentences the links sit in, not just the count. If a link feels shoehorned in — added purely to hit a linking quota rather than because it genuinely helps the reader — it's worth reconsidering whether it belongs there at all, or whether a different, more relevant page should get that link slot instead.
The internal linking audit checklist
Here's the condensed, embeddable version — save it or print it and work through it top to bottom.
- [ ] Run a full site crawl and export inbound/outbound internal link counts per page
- [ ] Identify all orphan pages (zero inbound internal links)
- [ ] Cross-reference sitemap URLs against crawled URLs to catch orphans a crawler might miss
- [ ] Pull anchor text report for your top 20 priority pages
- [ ] Flag anchor text that's overly repetitive (exact-match, same phrase every time)
- [ ] Flag anchor text that's too generic to carry topical signal
- [ ] Calculate link depth (clicks from homepage) for every page
- [ ] Flag high-priority pages sitting deeper than 3 clicks from the homepage
- [ ] Rank pages by inbound internal link count, high to low
- [ ] Identify under-linked pages that should be priority content
- [ ] Identify over-linked pages where link equity might be spread too thin elsewhere
- [ ] Run a broken internal link report and list every 404 and redirect chain
- [ ] Check that recently published content links back to relevant older pages
- [ ] Check that older cornerstone content has been updated to link forward to newer relevant content
- [ ] Spot-check top pages for contextual relevance of existing links, not just count
- [ ] Remove or replace links that feel forced rather than genuinely useful to the reader
- [ ] Document findings with priority level (quick win vs. structural fix) for each issue
Prioritizing fixes: quick wins vs. long-term restructuring
Once you have a full list of issues, resist the urge to tackle them in the order you found them. Sort into two buckets instead.
Quick wins are fixes you can make in minutes without touching site structure: adding a link from an existing high-authority page to an orphan page, fixing a handful of broken links, replacing generic "click here" anchors with something more descriptive on your top pages. Do these first. They're low-risk, fast, and give you early proof the audit is worth the time.
Long-term restructuring covers bigger issues: a whole content silo that's poorly connected to the rest of the site, a navigation structure that buries important categories too deep, or a pattern of thin, overlapping pages that should probably be consolidated rather than just linked together. These take planning, sometimes a content consolidation project, and they're not something you fix in an afternoon.
A practical way to sequence this: fix every orphan page and broken link first (genuinely quick, genuinely high-impact), then move to anchor text and depth issues on your top 20-30 priority pages, then tackle structural issues as a separate project with its own timeline.
It helps to actually score each issue rather than relying on gut feel. A simple two-axis approach works well: rate each issue's likely impact (how much traffic or ranking potential the affected page has) against its effort to fix (minutes versus days). Anything high-impact and low-effort goes first, by definition. Anything low-impact and high-effort goes last, or gets dropped entirely if you're being honest about where your time is best spent. The middle two quadrants — high-impact/high-effort and low-impact/low-effort — are where judgment calls happen, and that's fine; the point of scoring isn't perfect precision, it's avoiding the trap of fixing the easiest-to-find issues instead of the most valuable ones.
Tools that speed this up
Doing every step above by hand in a spreadsheet is possible on a small site and painful on a large one. A few tools make specific steps faster:
Screaming Frog remains the most thorough free-to-start option for the crawl, depth, and anchor text steps, with visualizations that make structural problems easy to spot. Ahrefs and Semrush fold similar reporting into their broader Site Audit tools if you're already paying for one of them. For WordPress sites, Link Whisper speeds up the fix stage specifically — its orphan page report and one-click linking mean you're not manually finding the right page to link from once you already know what's broken.
For an ongoing rather than one-time audit, a connected platform like RankHive continuously monitors your site's internal linking structure alongside your other technical SEO signals, flagging orphan pages and linking opportunities as new content goes live rather than waiting for you to run the next quarterly crawl — and, since it's connected directly to WordPress, it can push suggested fixes live instead of leaving them as a report you still have to act on separately.
A plausible before-and-after example
Picture a mid-sized blog with around 400 published posts, built up over several years with no formal internal linking strategy — just whatever links a writer happened to add while drafting.
An audit turns up roughly 60 orphan pages (about 15% of the site), a handful of cornerstone guides sitting five or six clicks deep because they'd been buried under newer category restructuring, and a cluster of about a dozen high-priority pages that had only one or two inbound links each despite being genuinely strong content.
The team spends a week on quick wins: linking every orphan page from at least one relevant, higher-authority post, fixing 40-some broken links accumulated from a URL structure change two years earlier, and bringing the buried cornerstone guides back within two clicks of the homepage via updated category and navigation links. Over the following couple of months, several of the previously under-linked priority pages see modest ranking improvements — consistent with the well-established idea that pages the site itself treats as more important, via internal links, tend to perform better, though results like this vary by site and shouldn't be read as a guaranteed timeline. The structural fixes (consolidating a couple of overlapping content silos) get scheduled as a longer project for the following quarter.
This is an illustrative scenario, not a specific documented case, but the shape of it — a meaningful chunk of orphan pages, some easy wins, and a smaller set of real structural work — matches what most first-time audits on a site of this size turn up.
FAQ
How long does a full internal linking audit take? For a site under 500 pages, expect a day or two for the crawl-and-analysis phase using a tool like Screaming Frog, plus additional time for implementing fixes, which varies a lot depending on how many issues you find and whether you're doing them by hand.
How often should I run one? Quarterly is a reasonable cadence for an actively growing site. If you're publishing very frequently (multiple times a week), consider a lighter monthly check specifically for new orphan pages, since those accumulate fastest right after publishing.
What counts as "too many" internal links on a single page? There's no strict number, but if a page has so many internal links that none of them feel purposeful to a reader, you've likely gone too far. Prioritize relevance over hitting a target count — a handful of genuinely useful links beats twenty tenuous ones.
Should I worry about internal linking on a small site (under 50 pages)? Less urgently, but it's still worth a quick manual check. Small sites are less likely to develop true orphan pages simply because there's less content to get lost in, but it's still worth confirming your most important pages are easy to reach from the homepage.
Can fixing internal linking issues actually improve rankings on its own? It can help, particularly for pages that were previously orphaned or badly under-linked, since you're improving both crawl discovery and topical relevance signals. It's rarely a silver bullet on its own — it works best alongside solid content and other technical SEO fundamentals, not as a replacement for them.
What's the difference between this and a general technical SEO audit? A general technical SEO audit covers a much wider range (site speed, indexability, structured data, mobile usability, and more), with internal linking as one section among many. This kind of audit goes deep specifically on link structure, anchor text, and crawl depth, which is useful when you already suspect linking is a specific weak point rather than needing a full site health check.
Do I need special tools, or can I do this in a spreadsheet? A spreadsheet works for the analysis and prioritization stages, but you still need something to actually crawl the site and generate the raw link data — nobody manually clicks through every page counting links. A free crawler like Screaming Frog (up to 500 URLs) plus a spreadsheet for organizing findings is a completely reasonable setup for a first audit on a small-to-mid-sized site.
What should I do first if I've never audited internal linking before and the site is large? Start narrow rather than trying to audit everything at once. Pick your twenty highest-priority pages — the ones driving the most traffic or revenue, or the ones you most want to rank better — and run the full checklist against just those first. You'll get real, actionable findings fast, and you can expand to the rest of the site once you've proven the process works and fixed the highest-value issues.
Can this kind of audit help pages that are already ranking well? Yes, though the case is different — for a page that already ranks, the work is less about winning a crawl and more about making sure it's channeling some of its accumulated authority toward related pages that need the help. A well-ranking cornerstone page that links to nothing else is a wasted opportunity to lift the rest of that topic cluster, and it's often the single highest-leverage fix on the whole list, precisely because that page already has authority worth sharing.