Several times a year Google makes a broad change to its core ranking systems and announces it. In the days that follow, positions shift across the whole index, forums fill with speculation, and site owners who lost visibility start looking for the thing they did wrong.
Usually there is no such thing. Core updates are not penalties and they do not target individual sites. Understanding what they actually are is the difference between a measured response and a panic that makes the situation worse.
What A Core Update Is
A core update is a revision to how Google assesses and orders content generally. It is not a manual action, not a filter aimed at a technique, and not something applied to your domain specifically. Google's own guidance on core updates makes the point plainly: pages that drop were not violating anything, and pages that rise were not rewarded for a trick.
The comparison Google offers is a list of the year's best films. Rewrite the list a year later with more films to consider and a refined sense of what makes one good, and a film that was fifth may now be eighth — not because it got worse, but because the assessment changed and the field moved. Rankings work the same way. Your page is being judged relative to everything else that could answer the same query.
Why Positions Move
Several things happen at once during a broad update:
- Query interpretation changes. Google's read of what a search means shifts, so a page that matched an old interpretation may match the new one less well.
- The competitive set changes. New pages have been published and existing ones improved since the last assessment.
- Quality signals are reweighted. The relative importance of the many things Google measures is adjusted.
- Rollouts take time. A broad update typically takes a couple of weeks to finish, and positions can swing repeatedly while it does.
That last point matters more than any other. Data collected mid-rollout is unstable, and acting on it is how site owners end up rewriting pages that were about to recover on their own.
What To Do, In Order
1. Wait For The Rollout To Complete
Change nothing substantial while an update is still rolling out. If you edit during the swing you will never know which movement was the update and which was you.
2. Measure Properly
Open Search Console and compare a full period after the rollout against an equivalent period before it. Look at clicks and impressions by page and by query, not just sitewide totals. The useful questions are narrow: did the whole site fall or a specific section? Did impressions drop, meaning fewer queries now surface the page, or did impressions hold while clicks fell, which is a titles-and-snippets problem instead?
3. Audit The Affected Pages Against The Content Questions
Google publishes a self-assessment for exactly this situation, and its helpful content guidance is the fairest checklist available. Read the losing pages as a stranger would. Does the page provide original information, reporting or analysis, or does it restate what was already on page one? Does it come from demonstrable experience? Would someone finish it satisfied, or immediately search again? Was it written for people, or assembled to occupy a keyword?
Compare honestly with the pages that now outrank you. Frequently the answer is simply that they cover the subject better, and that is a fixable problem.
4. Fix Substance First, Mechanics Second
Improve depth, accuracy, clarity and usefulness. Then check the mechanics: page speed, mobile rendering, intrusive interstitials and layout stability all affect whether a visit is worth having. The Core Web Vitals documentation explains how loading, interactivity and visual stability are measured and what typically causes each to fail.
What Not To Do
- Do not chase forum theories. Every update produces confident explanations within hours, most of which are pattern-matching on tiny samples.
- Do not delete pages in bulk. Removing pages that lost a couple of positions destroys assets that would have recovered.
- Do not shuffle keywords. Swapping phrases in and out of headings does not address why a page was judged less useful.
- Do not disavow links reflexively. A core update is not a link penalty, and careless disavowal removes value you earned.
- Do not expect same-week recovery. Improvements are usually recognised at the next broad assessment, which may be months away. Genuinely better pages hold their gains; quick fixes do not.
The Position That Survives Updates
Sites that ride out core updates comfortably tend to look the same: a clear subject, pages that answer real questions completely, evidence of first-hand knowledge, a fast and stable site, and a steady publishing habit. None of that is an update-specific tactic. It is the ordinary work, done consistently, and it happens to be exactly what a broad quality reassessment is designed to find.
If a core update hurt you, treat it as information rather than a verdict. Something you publish is not as useful as it needs to be. Our guide to building an SEO-friendly WordPress site covers the structural groundwork, keyword research helps you pick winnable targets, and the SEO section collects the rest.