Google August 2025 Spam Update

Google launched a spam update on 26 August 2025. It completed on 22 September, just under 27 days later, making it the first spam update of 2025 after three in 2024.

Google named no target for it. Search Engine Land’s coverage at launch reported that “it’s unclear what type of spam this update is targeting”, and its completion report concluded that this “was a general and broad spam update” for which “Google did not announce anything unique”.

What Google actually said

Google pointed to its standing spam updates documentation and nothing else. That documentation describes the general mechanism rather than any specific enforcement:

“While Google’s automated systems to detect search spam are constantly operating, we occasionally make notable improvements to how they work. When we do, we refer to this as a spam update… For example, SpamBrain is our AI-based spam-prevention system. From time-to-time, we improve that system to make it better at spotting spam and to help ensure it catches new types of spam.”

No companion blog post, no named policy category, no new guidance. Any account of this update that attributes it to a specific practice, whether AI content, link schemes or anything else, is inferring rather than reporting.

The data and the reports disagree

The two available kinds of evidence point in opposite directions.

Aggregate SERP measurement showed very little. SISTRIX’s radar recorded a low level of change across search results during the rollout, small in comparison to the June 2025 core update that preceded it. Their analysis found that falling domains with recognisably spammy content existed, but that “the levels of these changes are generally under the normal noise of daily SERP movements”, with no noticeable changes in the top 100 that were not explained by domain migrations or hacked sites.

SISTRIX went further and said an extensive list of losing domains could not be compiled at all, because most of the affected domains they examined turned out to be hacked or mid-migration rather than spam casualties.

Practitioner reports described the opposite. Search Engine Land reported that the update “touched down very quickly”, with affected sites seeing results within about 24 hours, and characterised it as having “impacted many sites in a very big way”, with some losing their traffic entirely. Movement picked up again around 9 September, when sites reported both ranking fluctuations and indexing issues.

Both accounts can be true at once. SISTRIX explains why: this “appears to be a penalty-only update”, where affected domains are removed from rankings rather than demoted a few positions. A handful of complete removals barely registers in an aggregate volatility measure across a million result pages, while being total for the sites concerned.

A concrete example

SISTRIX documented goong.com, a slang and meme dictionary that had 27,443 URLs ranking at its peak. Its content was caught by the update and removed from rankings. SISTRIX’s reading was that “this style of modern language and meme dictionary is no longer relevant for Google”.

They also raised, as their own inference rather than a measured finding, that AI Overviews may already have been taking searchers away from this type of result before the spam update reached it.

What this means

For most sites the practical answer is that this update was not about you. A general spam update enforces existing policy against sites in clear violation, and the measured data suggests the affected population was small.

For a sharp drop dated to late August or early September 2025, the pattern to check for is removal rather than demotion: pages gone from results entirely, not shifted down a few positions. Removal points at spam enforcement rather than a quality recalibration. Recovery from a spam action requires addressing the underlying policy violation, and Google’s guidance is that its systems need to observe compliance over a period of months.

Two things worth ruling out first, because SISTRIX found both were commonly mistaken for the update: whether the site was hacked, and whether a migration was in progress during the same window.

Tracking the update

• Started: 26 August 2025
• Completed: 22 September 2025
• Duration: Just under 27 days
• Type: Spam
• Target named by Google: None
• Confirmed by: Google Search Status Dashboard

Sources

• Google releases August 2025 spam update — Search Engine Land
• Google August 2025 spam update done rolling out — Search Engine Land
• August 2025 Spam Update: Visibility Data, Analysis, and Background — SISTRIX
• Google Search Central — Spam Policies
• Google Search Status Dashboard — Ranking Updates