Quick answer: A mid-year SEO health check reviews specific warning signs, ranking volatility, indexing coverage, Core Web Vitals, backlink changes, and content freshness, to catch problems before they show up as a full traffic drop. Running it every June, with half the year’s data in hand, leaves enough runway to fix issues before the year-end trading period.
Key Takeaways
- June is a natural checkpoint: six months of data, and enough time left to fix problems before Q4.
- Ranking volatility alone isn’t a red flag; volatility combined with falling impressions usually is.
- Indexing coverage errors are often the first sign of a technical problem building underneath rankings.
- A slow decline across several signals at once is more serious than one metric dipping briefly.
- Prioritise fixes by traffic value first, then by how quickly each one can realistically be resolved.
Why June Is the Right Time for This Audit
By June, most sites have enough fresh data to compare against the same period last year, and any algorithm updates from earlier in the year have had time to settle rather than still being mid-rollout. That combination makes June the most useful month to run a proper health check: there’s a real signal to read, and still enough runway before autumn and year-end trading periods to act on what’s found. Waiting until October to notice a problem means fixing it under pressure.
15 Signals Worth Checking This Month
- Organic sessions down year-on-year for the same month
- Average position falling for your top ten converting keywords
- Impressions dropping in Search Console even where clicks look stable
- A rise in “Crawled, currently not indexed” pages
- Core Web Vitals scores slipping on mobile specifically
- New 404 errors appearing in the coverage report
- Referring domains flatlining or falling over the past quarter
- A sudden spike in low-quality or spammy backlinks
- Bounce rate climbing on previously stable landing pages
- Blog posts older than 12 months with no update or refresh
- Featured snippets you previously held now belonging to a competitor
- Branded search volume declining month over month
- Category or product pages cannibalising each other in the same query
- Site-wide page speed regressing after a theme or plugin update
- Manual actions or security issues flagged in Search Console
What to Do When You Spot a Warning Sign
One metric dipping for a week rarely means much on its own; search results are naturally noisy. The pattern worth acting on is two or more of these signals moving in the same direction at the same time, since that combination usually points to a shared underlying cause rather than coincidence. If several show up together, it’s worth getting a second opinion before assuming the fix is obvious. A Haarty Hanks’ SEO health check looks at the full picture rather than treating each metric in isolation, which is often where in-house teams land on the wrong diagnosis and fix the symptom instead of the cause.
Turning the Audit Into a Priority List
Once the signals are logged, sort them by two criteria: how much traffic or revenue the affected pages actually carry, and how quickly each fix can realistically be shipped. A technical indexing bug on a top category page beats a content refresh on a low-traffic blog post every time, regardless of which one feels more urgent emotionally. Aim to close out the quick, high-impact fixes within a fortnight, and schedule the larger structural issues, such as a Core Web Vitals regression tied to a theme change, as a proper project with its own timeline rather than something squeezed in between other work.
Frequently Asked Questions
- How long should a mid-year SEO health check take?
- For a small to mid-sized site, a thorough pass through the 15 signals above takes a few hours; a full audit with a written action plan usually runs to a couple of days.
- Is ranking volatility always a bad sign?
- No. Some volatility is normal, especially around algorithm updates. It becomes a concern when it’s paired with a genuine drop in impressions or conversions rather than positions simply moving up and down.
- Should I run this check more than once a year?
- A lighter version monthly, watching for sudden changes, plus this deeper check at mid-year and again in December, covers most businesses well without becoming a full-time job.
