When Google rolls out a core update, one question comes up quickly: did my site lose rankings, and what caused the change? There is no single fix for a drop. Sites tend to hold up better when their content is useful, original, trustworthy, aligned with search intent, and easy to use.
Google does not provide a fixed ranking score or a formula that tells you exactly where your pages stand. Its systems consider many signals, and their importance can vary from one search to another. This SEO audit checklist for Google Core Updates looks at the areas worth reviewing, from content quality and search intent to page experience and technical issues, so you can identify what needs attention on your site.
What Is a Google Core Update?
A Google Core Update is a major change to the systems Google uses to rank pages in search results. When an update rolls out, Google may reassess pages based on things like relevance, content quality, usefulness, and overall page experience. If your rankings drop after a core update, it doesn’t automatically mean your site has been penalised. It may simply mean Google now sees other pages as a better match for that search. For SEO professionals, understanding Google Core Updates makes it easier to review changes in rankings, traffic, content quality, and overall website performance.
How Google Core Updates Evaluate Content Quality
Google is constantly tweaking the systems that decide what counts as good content. A core update is when those tweaks add up to something big enough to notice. It’s not Google singling out your site. When a page drops after one of these updates, that’s usually the broader recalibration catching up with content that no longer clears the bar, not a targeted penalty.
There’s no secret formula sitting behind the curtain here. Google’s ranking systems weigh a lot of signals at once, covering relevance, quality, usefulness, and how a page feels to actually use, and the mix changes depending on what someone typed into the search box.
One thing worth sitting with is information gain. If your page reads like a slightly reworded version of the ten results already sitting above it, with the same examples, the same order, and the same takeaways, there’s no reason for Google to move it up. Pages that bring something new to the table, an angle nobody else covered, and a detail everyone else skipped tend to hold their ground much better once the dust settles.
7 Things Worth Auditing Before and After a Core Update
1. Search Intent
Start here. Does the page still answer what people are searching for, in the format they expect? Search behaviour shifts over time. What worked as a listicle two years ago might now need to be a comparison table, even if the underlying topic hasn’t changed at all.
2. Content Quality and Originality
Ask yourself plainly: what does the top-ranking competitor have that your page doesn’t? Not word count. Not keyword density. Actual substance, an example, a data point, a detail from firsthand experience. Pull up the pages currently beating yours and go through them line by line. It’s uncomfortable, but it’s the fastest way to spot the gap.
3. E-E-A-T and Trust
E-E-A-T stands for Experience, Expertise, Authoritativeness, and Trustworthiness. It’s a framework Google uses to think about quality, not a hidden number that decides your rank. Experience means the content shows someone actually did the thing, ran the test, took the photo, tried the tool. Expertise is subject knowledge and a real author behind the piece. Authoritativeness is other credible sources pointing back at you. Trustworthiness ties it together: accurate sourcing, a secure site, clear editorial standards, and a way to actually contact someone.
Topics touching health, money, safety, or wellbeing (often called YMYL content) get held to a higher standard, because getting it wrong there costs more than getting a recipe blog wrong. That doesn’t mean some fixed multiplier applies. It means sourcing and expertise matter more when the stakes are higher.
4. Internal Linking
Internal links do two jobs: they help Google find your pages, and they help it understand how those pages relate to each other. A descriptive anchor pointing to a genuinely related page does more work than ten links scattered around just to hit a number.
5. Technical SEO
Crawlability, indexing, structured data, and how many clicks it takes to reach an important page from the homepage. Technical issues have a habit of showing up right around update time and getting blamed on the update itself. A broken sitemap or an accidental noindex tag can look exactly like a ranking drop until you check.
6. Core Web Vitals and Page Experience
Three numbers matter here.
LCP, or Largest Contentful Paint, should land under 2.5 seconds. It’s how fast the main content shows up.
INP, Interaction to Next Paint, should stay under 200 milliseconds. It’s the gap between a tap and something visibly happening.
CLS, Cumulative Layout Shift, should stay under 0.1. It’s whether the page jumps around while it loads.
These are part of how Google thinks about page experience, but they won’t save weak content, and strong content won’t get pulled down by decent-but-not-perfect numbers alone. Aim for good scores, but don’t treat them as the whole game.
7. Spam and Manipulative Practices
Unnatural link patterns, content built to game rankings rather than help a reader, anything that falls under Google’s spam policies. You don’t need to have done this on purpose to still be affected. Sometimes it’s a leftover from an old SEO approach nobody cleaned up.
Update, Merge, or Cut? Deciding a Page's Fate
There are really only three moves here, and which one you reach for depends completely on what the audit shows, not on whatever you usually default to.
Update when the topic still holds up but the page itself has gotten stale. Facts: nobody’s checked in a while, no author listed anywhere, and a stock photo doing the job, a real screenshot or example should be doing. Most of the time this just needs a refresh, not a full rewrite.
Merge when you’ve got two or three pages quietly stepping on each other’s toes for the same search term. Spreading relevance thin across a handful of half-decent pages almost never wins against one page that actually nails the topic. Pull the best parts from each, build one solid version, and redirect the rest into it.
Cut, but not before you’ve actually looked. Is the page still bringing in traffic? Does it have backlinks? Is it converting anyone? Does it cover something you can’t find anywhere else on your site? If any of that’s still true, fixing it or folding it into another page almost always beats just deleting it.
A Few Mistakes People Keep Making
- Rewriting everything at once instead of figuring out which pages actually took the hit
- Cramming in keywords without actually saying anything new
- Padding word count for the sake of it, no new idea in sight
- Copying whatever the competitor did instead of doing something your own
- Deleting pages without checking if they were quietly pulling traffic or links first
- Publishing stuff that sounds like it was written from a Google search instead of real experience
- Panicking over every tiny ranking dip like it’s a confirmed update every single time.
What to Actually Check
- Does the page answer what people were searching for in the first place?
- Are the big claims backed by sources someone could actually verify?
- Is there something here competitors don’t have, a real example, an original take, or some actual analysis?
- Is there an author attached, where that’s the kind of thing readers care about?
- Do the internal links go to pages that are genuinely related, with text that says what they’re about?
- Can Google actually crawl and index the important pages?
- Is LCP under 2.5 seconds, with the key stuff preloaded instead of lazy-loaded?
- Is INP staying under 200 milliseconds, with the heavy JavaScript broken up instead of dumped in one block?
- Is CLS under 0.1, so nothing’s jumping around while the page loads?
- Does it actually work on a phone?
- No keyword stuffing, no links shoved in where they don’t belong?
Has anything outdated actually been fixed, not just noticed? - Can someone land on this page and walk away with what they came for, without digging through filler to get there?
Want to Get Better at Recovering From Google Core Updates?
Knowing what to check is only the starting point. Applying those checks to a live website, fixing E-E-A-T gaps, improving internal links, and addressing Core Web Vitals takes hands-on experience. A checklist can help identify issues, but it does not teach you how to work through them. The WSQ Search Engine Optimisation (SEO) course in Singapore covers SEO fundamentals, core algorithm updates, website audits, and technical issues, including how to identify and address common problems.
