A Google algorithm update is a change to the systems Google uses to decide which pages to show and in what order. Small changes happen constantly and mostly go unnoticed. From time to time Google announces larger ones, such as core updates and spam updates, and rankings across many sites shift while they roll out. An update does not target your business personally. It changes how Google assesses pages in general, so some sites rise, some fall and many barely move. The safest position is a site that is genuinely useful, honest and technically sound, because that is what the updates are trying to reward.
The main kinds of update
Core updates
Broad changes to how Google assesses content overall. Google has said that a drop after a core update does not necessarily mean something is wrong with your page; other pages may simply have been judged more helpful for the same searches.
Spam updates
Improvements to the systems that detect spam: bought links, low-value content produced at scale, cloaking and similar tactics. Sites that rely on these can lose rankings sharply. The article on black-hat SEO and why it backfires lists the tactics involved.
Targeted updates
Changes aimed at one area, such as reviews, local results, or how a particular kind of search is handled.
Changes to the results page
New features and layouts, such as AI-generated summaries above the links. These can change how many people click even when your position has not moved.
Google publishes notices of significant updates through its official Search Central channels, including when a rollout starts and when it finishes. That is the place to check, rather than rumours in Facebook groups.
What changes, and what does not
| What updates change | What stays the same |
|---|---|
| How Google weighs signals of quality and relevance | The need to be crawlable and indexed |
| Which of several similar pages is preferred | The value of accurate, original, useful content |
| How well spam is detected | The core idea of the spam policies: do not manipulate |
| The layout of the results page | Customers' need for clear answers and trustworthy businesses |
In other words, updates move the details. The direction has stayed consistent for a long time: content made for people, from businesses that can be trusted.
How to tell whether an update affected you
A drop in traffic is not always an update. Before assuming anything, check:
- Timing. Did the drop start during an announced rollout, or on a day you changed something on your site?
- Technical causes. A redesign, a move to a new host, an outage, a
noindexleft on by mistake or a plugin update can all cut traffic. - Seasonality. Many businesses have quiet seasons, around Eid or the monsoon for example. Compare with the same period in an earlier cycle, not just last month.
- Which pages and searches moved. A few pages or the whole site? Searches for your brand name, or general ones?
- Search Console messages, including any manual action.
The step-by-step traffic drop diagnosis goes through these checks in order.
What to do after an update hits
- Wait for the rollout to finish before making big changes. Rankings often move back and forth during it.
- Compare like with like: a period after the update against a similar period before it.
- Study the pages that lost the most. Search for their main queries and read what now ranks above you. Is it more complete, more current, more first-hand?
- Improve genuinely: update outdated information, add real experience and detail, merge thin pages, fix technical problems.
- Avoid panic changes, such as deleting large parts of the site or buying links to recover. These usually make things worse.
- Be patient. Improvements may only be fully reflected after later updates.
Staying on the right side
The habits that protect you from updates are the same ones that bring customers:
- Write pages for the questions your customers really ask, in the language they search in.
- Show who you are and why you know your subject; the article on E-E-A-T explains how.
- Keep business details, prices and stock up to date.
- Earn links and reviews honestly.
- Keep the site fast and usable on phones over mobile data.
- Check Search Console regularly, so you notice problems early.
If an update has shaken your traffic and you would like a calm second look, you are welcome to get in touch.