Traffics Drops? Spam, Core Updates or Seasonality

In 2026 that question has been harder to answer than usual. Google has confirmed two broad core updates, a Discover core update and four spam updates so far this year, often weeks apart.

The temptation is to blame the most recent update and start rewriting pages. In our experience managing SEO for businesses across the East Midlands and beyond, that is often the wrong call. Many drops we investigate turn out to be seasonal, technical or simply a change in how the data is reported.

This is the step-by-step process our SEO team uses to work out what actually happened before deciding what to do about it.

Why 2026 Has Felt So Volatile

If it feels like Google has been changing things constantly this year, the record backs that up. These are the confirmed ranking updates listed on Google’s ranking release history so far:

The September spam update also stood out because Google gave it a rollout window of up to two weeks, whereas every earlier spam update this year finished within about three days (PPC Land).

On top of the confirmed updates, Google’s documentation notes that smaller core updates happen on an ongoing basis without announcement. Add the AI Mode changes announced at Google I/O in May, and it is no surprise that many site owners have struggled to pin down why their numbers moved.

Step 1: Line the Drop Up Against Update Dates

Start with timing, because it rules things in or out faster than anything else.

1. Open the Performance report in Google Search Console and set the date range to cover at least the last 16 months.
2. Find the day the decline actually started. Look for a sustained step down rather than a single bad day.
3. Compare that date with the Google Search Status Dashboard, which lists every confirmed update with its start and end times.
4. Check whether the drop is site-wide or limited to certain pages, folders or query types. Use the Pages and Queries tabs to see where the loss is concentrated.

If the decline starts days or weeks before an update began, the update is very unlikely to be the cause. If it lines up closely with a rollout window, it is a candidate, but not yet a conclusion.

Step 2: Rule Out Seasonality

Before blaming Google, check whether fewer people were simply searching. This is the step most often skipped, and it explains more drops than any algorithm update.

• Compare year on year, not month on month. In Search Console, use the Compare option to set this period against the same period last year. A drop that mirrors last year’s pattern is usually demand, not rankings.
• Check average position alongside clicks. If impressions and clicks fall but average position holds steady, your visibility has not changed. Searchers have.
• Look at demand directly. Google Trends shows whether interest in your core topics fell over the same period, and can be filtered to the UK.
• Look across accounts if you can. A dip that appears across several unrelated sites at once points to something wider than one website.

That last point is where agency experience helps. In July and August 2026, we saw a broad dip across most of the accounts we manage, spanning different industries. Rankings were largely stable. Search demand had softened over the summer, as it often does. Had we treated each account in isolation, it would have been easy to misread that as an algorithm hit and start making unnecessary changes.

Step 3: Rule Out Technical and Reporting Causes

A surprising number of “traffic drops” are really tracking or site problems. Work through these before assuming anything about rankings.

• Indexing. Check the Page indexing report in Search Console for a sudden rise in excluded or noindexed pages. A plugin update or theme change can quietly add a noindex tag or block pages in robots.txt. If you run WordPress, our WordPress SEO team sees this regularly.
• Site changes. Did anything go live around the date of the drop? Redesigns, URL changes, migrations and content removals are common culprits.
• Analytics tracking. If GA4 shows a drop but Search Console does not, the problem is almost certainly your tracking, not your traffic. Check the tag is still firing on every page and that consent banner settings have not changed.
• Page experience. Slow pages rarely cause sudden drops, but they can contribute over time. Our guide to what your Core Web Vitals score is actually telling you explains what to look for.
• Reporting changes. Google sometimes changes how Search Console counts data. In late September 2026, it split the Performance report’s Web category, which created a step change in impressions for some sites with visibility in camera-based search. That reflects how the data is counted, not a change in traffic (PPC Land).

If you would rather have a second pair of eyes on it, our free SEO audit covers indexing, technical health and on-page issues in one go.

Step 4: Spam Update or Core Update?

If the timing points to a Google update and you have ruled out seasonality and technical issues, the type of update matters. They work differently and call for different responses.

Google’s guidance on each is worth reading in full: core updates and spam updates.

If it looks like a core update, focus on the quality of the affected pages rather than quick fixes. Ask whether each page genuinely answers the searcher’s question better than the alternatives. Our guides on optimising your on-page SEO and whether SEO or content matters more are a good starting point.

If it looks like a spam update, check the Manual actions report in Search Console first, then review your site honestly against Google’s spam policies. Pay particular attention to any bulk-produced content and to links you have paid for or exchanged. For what it is worth, we do not run link outreach for clients unless there is a genuine existing relationship with the linking site, precisely because manufactured links carry this kind of risk.

It is also worth being clear about what spam updates do not mean. Using AI to help produce content does not make it spam in itself. What matters is whether the content is useful and whether it was produced at scale to manipulate rankings.

Step 5: Give It Time Before Acting

The hardest part of diagnosing a drop is waiting. Google recommends leaving at least a full week after an update finishes before analysing your Search Console data, and rankings often swing back and forth while a rollout is still in progress.

In practice, that means:

• Do not make big changes mid-rollout. Changes made before an update completes make it impossible to tell what caused what.
• Pause major technical work. Migrations, URL restructures and large internal linking changes are best held until the dust settles.
• Keep a change log. Note every site change with a date. When you come to analyse the data, it lets you separate your own actions from Google’s.
• Measure against a clean baseline. Compare the weeks after the rollout ends with the same weeks before it started, and with the same period last year.

When a Drop Isn’t Worth Panicking Over

Most traffic drops have an ordinary explanation. Work through the steps in order: timing, seasonality, technical and reporting issues, and only then the type of update. That way you avoid making changes that fix nothing or, worse, cause new problems.

It is also worth remembering that clicks are not the whole picture in 2026. As AI Overviews and AI Mode answer more queries directly, some sites are seeing fewer clicks while their visibility holds up. If that sounds familiar, our guide to GEO and optimising for AI search explains how to adapt.

If you have worked through all of this and still cannot explain a drop, get in touch with our team. We will tell you honestly whether it needs action or just patience.