SEO Content Audit Case Studies (Including Our Own)
Real content-quality audit case studies — what we found auditing our own sites, scores and all, and what the failures teach about ranking. Run your own.
By Brian Diamond
Most "SEO case studies" are highlight reels: a graph going up and to the right, a quote about a 312% traffic lift, no mention of what didn't work. They're marketing, not evidence. The useful ones show the before honestly — what was actually wrong with the content, why, and what changed.
So here are real content-quality audit case studies, starting with the most uncomfortable one: ours.
Case study 0: we audited our own sites first
Before we'd let Revylo near a customer's content, we pointed it at six sites we own and run — including ChiliStation, Onaro, and day9.coffee — and published exactly what it found, good scores and bad. The short version: it was humbling.
- E-E-A-T scored red on every article, on every site. Content we were proud of had no visible author expertise, no first-hand experience signals, nothing that told Google a credible human stood behind it.
- Fact-grounding flagged contradicted claims — including a recipe that disagreed with itself between two sections.
- Originality flagged articles 80%+ similar to pages we'd never seen — not plagiarism, just the same obvious points everyone in the niche makes, which is its own ranking problem.
The full, unedited write-up is here: I Built an SEO Audit Tool. Then I Pointed It at My Own Sites. We left the bad scores in, because a content-quality tool that only shows you wins isn't measuring anything.
The lesson that generalizes: content that reads fine to the person who wrote it routinely fails on the dimensions Google actually scores. You're too close to your own work to see it. That gap is the entire reason audits exist.
What a content-audit case study actually shows
A useful case study isn't "traffic went up." It's the chain of cause and effect:
- The symptom — a page that should rank doesn't, or traffic quietly declined after a Google update.
- The diagnosis — what the audit found: off-intent content, unsourced claims, no E-E-A-T, near-duplicate of higher-ranking pages.
- The fix — the specific change made, mapped to the specific failing check.
- The result — measured against the baseline you took before you touched anything.
If a case study skips step 2 — the diagnosis — it's not a case study, it's an ad. The diagnosis is the part you can learn from, because your content probably has the same problem.
The patterns that show up again and again
Across audits, the same handful of failures account for most of the gap:
- Intent drift. The page ranks-targets a query but answers a slightly different question than the searcher asked.
- Confident, unsourced claims. Statistics and assertions with nothing behind them — exactly what Google's "reliable, people-first content" guidance penalizes.
- No evidence of experience. Competent writing that clearly came from research, not from having done the thing.
- Sameness. Technically fine content that says what forty other pages already said, so there's no reason to rank it over them.
None of these show up in a traditional SEO audit, because a traditional audit checks structure and keywords, not whether the content is good. (We wrote up the full distinction in what is a content audit, and the methodology behind the scores is public.)
Run your own case study
The most honest case study you'll ever read is the one about your own content. Point an audit at a page you're proud of and see how it scores against the quality dimensions Google actually grades — search intent, fact accuracy, E-E-A-T, originality, and the rest (all defined in the glossary).
It might sting a little. Ours did. But it's the fastest way to find the few fixable things standing between content you've already paid for and the rankings it should have.