Checked for accuracy and updated on August 9, 2026.
Most WordPress sites have a strange gap: they rank fine for a handful of terms but stay invisible for dozens of related questions their audience is actually asking. That’s not a writing problem — it’s a coverage problem. A content gap analysis compares what your site actually covers against what your audience searches for and what your competitors already rank for, and turns the difference into a prioritised list of what to write or fix next.
Most site owners skip this entirely and just keep publishing whatever comes to mind next. That works for a while, but it leaves holes in your topic coverage that search engines notice even when your readers don’t.
Start by Listing What You Actually Have
Export every published post with its title, category, and word count. If you already run a content plan built from keyword research, this is often sitting in the same spreadsheet — you’re extending it, not starting fresh. Group posts by topic cluster rather than publish date; that’s what makes it obvious at a glance which clusters have five supporting posts and which have one lonely article carrying the whole topic.
Pull the Queries People Are Already Typing
Google Search Console’s Performance report shows the exact queries people already use to find your site — including ones where you rank on page two or three without a dedicated page for them. Sort by impressions rather than clicks: a high-impression, low-click query is usually a page trying (and failing) to satisfy a search it isn’t really built for, which is a much stronger gap signal than a query you’re not showing up for at all. See using Search Console to find new post ideas for the exact filtering steps. “People also ask” boxes and autocomplete suggestions for your core topics fill in the rest — they surface the follow-up questions readers have after reading your existing posts, which is often where the real gaps hide.
Then check what’s ranking above you. You’re not copying a competitor’s structure — you’re checking whether there’s a reason several of them all cover a subtopic you skipped.
What This Actually Turned Up on a Real Site
Running this exact process on this site was more instructive than the checklist above makes it sound. Grouping close to 290 posts by category, most clusters turned out to be genuinely saturated already — Ecommerce and SEO each had 25–35 posts, no defensible hole. But two categories broke the pattern: Website Security had thorough individual technique guides (malware scanning, two-factor auth, login-URL hardening) but nothing comparing the actual tools against each other — every post assumed the reader had already picked Wordfence or Sucuri, none helped them choose. And an otherwise exhaustive SEO category, 35 posts deep, had never once covered featured snippets or E-E-A-T — not obscure topics, foundational ones, just never written. Both gaps have since been closed: a dedicated featured snippets guide and an E-E-A-T explainer filled the SEO side, and a head-to-head Wordfence vs Sucuri vs Solid Security comparison filled the Security one — proof the list this process produces is meant to get worked through, not filed away.
Neither gap showed up from guessing. Both came from doing the unglamorous part — actually counting posts per category against what each category’s own scope promised — rather than assuming a 289-post site must already cover the basics. That’s usually where real gaps hide: not in exotic topics, but in foundational ones a large site simply never got around to.
Scoring the Gaps, and Deciding Whether They Need a New Page at All
Not every gap deserves a new post immediately. Score each one on three things: search demand, how directly it fits the site’s actual focus, and whether it strengthens a cluster you’ve already built authority in versus starting an isolated new one — gaps that reinforce existing authority tend to pay off faster than a topic with no surrounding support.
And a gap isn’t always a missing page. Sometimes it’s a 400-word post that technically covers the topic but never answers the follow-up question readers actually have — that loses to a competitor’s fuller treatment just as surely as if the page didn’t exist. Fixing that is usually faster than writing something new; see updating old blog posts for better SEO for how to expand a thin page without losing whatever ranking it already has. Only write a genuinely new post when the gap is a topic your existing pages don’t touch at all.
Run this quarterly, not once — new gaps open up as both your site and your competitors keep publishing, and a review that was thorough six months ago is stale by now. A simple spreadsheet beats specialist software when you’re starting out; the process matters more than the tool. Once you have at least a dozen published posts, this is worth doing properly; below that, you’re better served finishing the step-by-step guide to building a WordPress website and getting a solid base of core pages live first. Google’s own Search Console Help centre is worth bookmarking for the data side of all of this.
Etienne Basson works with website systems, SEO-driven site architecture, and technical implementation. He writes practical guides on building, structuring, and optimizing websites for long-term growth.