Traffics Drops? Spam, Core Updates or Seasonality

When organic traffic drops, the first question is always why. In 2026, that’s been harder to answer than usual, because Google has announced several updates this year, sometimes only weeks apart. It’s tempting to blame the latest update and start rewriting pages, but in our experience, many drops turn out to be seasonal, technical or caused by changes in how data is reported.

This guide walks through how to diagnose a traffic drop step by step, and how to make your site more resilient to future volatility.

Why 2026 Has Felt So Volatile

Google has confirmed the following updates so far this year, according to its ranking release history:

The September spam update took almost two weeks to roll out, much longer than the earlier spam updates this year, which finished in around three days. Google also makes smaller core updates on an ongoing basis without announcing them, and introduced further changes to AI Mode at Google I/O in May. Put together, that’s a lot of movement for any site to absorb.

Step 1: Line the Drop Up Against Update Dates

Open the Performance report in Google Search Console and set the date range to at least 16 months. Find when the decline actually started. Look for a sustained step down rather than one bad day.

Then compare that date with the Google Search Status Dashboard. If your traffic started falling well before an update began, the update is unlikely to be the cause. Use the Pages and Queries tabs to see whether the drop is spread across the whole site or concentrated on certain pages or topics.

Step 2: Rule Out Seasonality

This is the most skipped step, and in our experience it explains more drops than algorithm updates do.

• Compare year on year, not just month on month. A dip in August might be completely normal for your industry.
• Check your average position. If your position holds steady while clicks and impressions fall, demand has probably dropped rather than your visibility.
• Use Google Trends, filtered to the UK, to see whether interest in your core topics has fallen.
• Look across multiple sites if you can. If unrelated sites dip at the same time, the cause is probably wider than any one of them.

In July and August 2026, we saw a broad dip across most of the accounts we manage, in very different industries. Rankings were largely stable, and search demand had simply softened over the summer. Treating each account in isolation could easily have led to unnecessary changes.

Step 3: Rule Out Technical and Reporting Causes

• Indexing: check for a sudden rise in excluded or noindexed pages. This can follow plugin or theme changes, or an accidental robots.txt block. WordPress sites are particularly prone to this.
• Site changes: think about any redesigns, URL changes, migrations or content removals around the time of the drop.
• Analytics tracking: if GA4 shows a drop but Search Console doesn’t, check that your tags fire on every page and that your cookie consent settings haven’t changed.
• Page experience: slow pages rarely cause sudden drops, but they can contribute over time. Our guide to Core Web Vitals explains what to look for.
• Reporting changes: in late September 2026, Google separated visual searches, such as Google Lens and Circle to Search, from the main Web category in the Performance report. For some sites, this created a step change in impressions that reflects how data is counted, not a real loss of traffic.

If you’d like a second pair of eyes, our free SEO audit covers these checks.

Step 4: Spam Update or Core Update?

If the timing points to an update, and you’ve ruled out seasonality and technical issues, the type of update matters, because the response is very different.

After a core update, Google’s guidance is to assess your content honestly. For each affected page, ask whether it answers the searcher’s question better than the pages now ranking above it.

After a spam update, check the Manual actions report in Search Console first. Then review your site against Google’s spam policies, paying particular attention to content produced in bulk and to any paid or exchanged links. We don’t run link outreach unless there’s a genuine existing relationship with the linking site, for exactly this reason. AI-assisted content isn’t spam in itself. What matters is whether it’s genuinely useful, and whether it was produced at scale to manipulate rankings.

Step 5: Give It Time Before Acting

Google recommends waiting at least a full week after an update has finished rolling out before analysing your Search Console data, as rankings often fluctuate during the rollout itself.

• Avoid making big changes mid-rollout.
• Pause major technical work, such as migrations or internal linking overhauls, so you can tell what caused any movement.
• Keep a dated log of every change you make to the site.
• Compare the weeks after the rollout with the weeks before it, and with the same period last year.

How to Make Your Site More Resilient to Volatility

You can’t control when Google updates its algorithm, but you can make your site less vulnerable when it does.

Keep Your Content Aligned With Search Intent

Review your most important pages regularly. Do they still answer the questions your audience is asking, clearly and completely? Use the Queries tab in Search Console to see what people actually search for to find each page, and check that the content matches. Sites that cover their subject in depth tend to hold up better through core updates. Our guide to topical authority explains how to build that depth.

Watch What Your Competitors Are Doing

When rankings shift, look at which pages have moved above yours and why. Are they more detailed, more recent, or a better match for what the searcher wants? Tools like the Semrush Sensor can also show how volatile results are across your industry at any given time.

Keep Your Technical Foundations Solid

Volatility tends to expose technical weaknesses. Make sure your site loads quickly, works properly on mobile, and has no crawl or indexing errors holding pages back. Check Search Console’s indexing reports regularly rather than only when something goes wrong.

Target Specific, Long-Tail Searches

Broad, competitive terms tend to see the biggest ranking swings. Longer, more specific searches usually face less competition and match a clearer need, so they often provide steadier, better-qualified traffic while short-tail rankings move around.

Don’t Rely on a Single Channel

If organic search is your only source of leads, every update is a risk to your business. A broader mix softens the impact:

• Local SEO: a well-optimised Google Business Profile gives you visibility in Google Maps and the local results.
• Paid search: Google Ads keeps you visible for your most important searches while organic rankings recover.
• Content and email: useful content shared through email and social media brings people back without depending on rankings.

When a Drop Isn’t Worth Panicking Over

Most traffic drops have ordinary explanations. Work through the timing, seasonality, technical and reporting issues before assuming an update is to blame, and only then look at what type of update it was.

It’s also worth remembering that AI Overviews and AI Mode are reducing clicks for some sites even where their visibility hasn’t changed. If that’s what you’re seeing, our guide to GEO and optimising for AI search explains how to adapt.

If you’re not sure what’s behind a drop, get in touch with our SEO team for an honest assessment.