1.11Intermediate10 min

Google Algorithm Updates: Overview and Impact

Lucas Blochberger·7 April 2026·Updated 10 June 2026

Definition

Google Algorithm Updates are changes to Google's ranking algorithm that influence the order of search results. Core Updates are the most significant and affect broad ranking evaluations, while Spam Updates specifically target manipulative practices.

Key Takeaways

✓According to Google, the company conducts hundreds of thousands of experiments per year; most changes go unnoticed, with only the largest Core and Spam Updates being officially named.
✓Three update types to distinguish: daily silent changes, broad-impact Core Updates, and targeted Spam Updates against black-hat practices; plus site-wide signals like the Helpful Content System.
✓The Helpful Content Update of 2022 introduced a site-wide signal and has been an integral part of the core ranking systems since March 2024.
✓Core Updates typically roll out over two to four weeks; the second Core Update of 2026 ran from May 21 to June 2, 2026 (approximately twelve days).
✓E-E-A-T and people-first content are the common thread across all updates; after a drop, improving content quality matters, not technical quick fixes or black-hat tricks.
✓AI Overviews and zero-click are a new update dimension: in the US, 68.01 percent of searches already ended without a click in 2026, and a good traditional ranking does not guarantee visibility in the AI answer.
✓In Austria, Google holds an 81.87 percent market share (May 2026); monitoring should combine the Search Status Dashboard, Search Console, and third-party trackers.

Google Algorithm Updates are the pulse of SEO. Those who understand the update history can recognize patterns and align their strategy accordingly.

Types of Google Updates

Core Updates are the most significant. They overhaul Google's entire ranking system and can change search results for broad keyword categories. Spam Updates target manipulative practices like link spam, cloaking, or Scaled Content Abuse. Specific Updates affect individual systems like Product Reviews, Helpful Content, or Local Search.

2025 Updates in Detail

The March 2025 Core Update strengthened the weighting of E-E-A-T signals. The June 2025 Core Update emphasized topical authority. The August 2025 Spam Update introduced manual actions against excessively AI-generated content (Scaled Content Abuse). The December 2025 Core Update extended E-E-A-T beyond YMYL and emphasized that weak pages can harm a strong website.

2026 Updates So Far

The February 2026 Discover Update changed content selection for Google Discover. The March 2026 Core and Spam Updates are currently rolling out.

Strategic Approach to Updates

The best protection against negative update impacts is long-term quality. Websites that consistently publish high-quality, user-centered content recover faster from updates or even benefit from them.

When negatively affected: Conduct a content audit, update or remove thin or outdated content, strengthen E-E-A-T signals, and wait for the next Core Update. Google has confirmed that improvements typically only lead to ranking changes with the next Core Update.

Data & Statistics

Google fuehrt Hunderttausende Experimente pro Jahr durch, um die Suche fortlaufend zu verbessern.

Google - How Search Works (Ranking Results) (2026)

Suchmaschinen-Marktanteil in Oesterreich (Mai 2026): Google 81,87 Prozent, Bing 9,01 Prozent, DuckDuckGo 2,75 Prozent.

Statcounter Global Stats - Search Engine Market Share Austria (2026)

Ende 2025 nutzten 8,69 Millionen Menschen in Oesterreich das Internet, bei einer Online-Penetration von 95,3 Prozent.

DataReportal - Digital 2026: Austria (2026)

Das August-2022-Helpful-Content-Update fuehrte ein neues seitenweites Signal ein, das unter vielen Signalen fuer das Ranking beruecksichtigt wird; seit Maerz 2024 Teil der Core-Systeme.

Google Search Central Blog (Danny Sullivan & Chris Nelson) (2022)

Das zweite Core Update 2026 startete am 21. Mai 2026 und war nach rund zwoelf Tagen am 2. Juni 2026 abgeschlossen; Kommunikation ueber Search Status Dashboard und LinkedIn.

Search Engine Land - Google May 2026 Core Update Complete (2026)

AI Overviews erschienen im November 2025 bei rund 16 Prozent (15,69 Prozent) der Anfragen, nach einem Spitzenwert von rund 25 Prozent (24,61 Prozent) im Juli 2025 (ueber 10 Mio. Keywords).

Semrush - AI Overviews Study (2025)

In den USA endeten in den ersten vier Monaten 2026 68,01 Prozent der Google-Suchen ohne Klick, ein Anstieg um 7,56 Prozentpunkte gegenueber 60,45 Prozent in 2024.

SparkToro / Search Engine Land (2026)

Ein randomisiertes US-Feldexperiment fand, dass AI Overviews die organischen Klicks bei ausgeloesten Suchanfragen um 38 Prozent reduzierten.

Search Engine Journal (zu SSRN Working Paper Agarwal & Sen) (2026)

In einer Analyse von 200.000 AI Overviews war das organische Top-1-Ergebnis nur in 46 Prozent der Desktop- und 34 Prozent der Mobile-Antworten zitiert.

Semrush - We Studied 200,000 AI Overviews (2024)

Gezielte Generative-Engine-Optimization-Methoden koennen die Sichtbarkeit in generativen Suchantworten um bis zu 40 Prozent steigern.

arXiv:2311.09735 - Aggarwal et al., GEO: Generative Engine Optimization (KDD 2024) (2024)

FAQ

What is a Google Algorithm Update?

A Google Algorithm Update is a change to Google's ranking algorithm that affects the order of search results. According to Google, the company conducts hundreds of thousands of experiments per year, with the vast majority of changes being so small that they go unnoticed. Only the largest, broad-impact adjustments are officially communicated by Google as named updates, primarily Core Updates and Spam Updates.

What is the difference between a Core Update and a Spam Update?

A Core Update broadly re-evaluates how well content matches search queries and affects many websites across all industries. A Spam Update, on the other hand, specifically enforces Google's spam policies and targets manipulative practices such as link buying, cloaking, or mass-generated, low-value content. Both are officially announced via the Search Status Dashboard.

How long does a Google Core Update take?

Core Updates roll out over several weeks, typically two to four weeks. The second Core Update of 2026, for example, started on May 21, 2026, and was completed after approximately twelve days on June 2, 2026. During the rollout, rankings can fluctuate significantly, so it's advisable to wait for the end before drawing conclusions.

What should I do if my website loses rankings after a Core Update?

First, check the Search Status Dashboard to see if a confirmed update was running, and cross-reference the timing in Google Search Console. Identify affected pages via the Performance report and improve their content quality along E-E-A-T and people-first principles. Recovery typically occurs only with one of the following Core Updates. Avoid technical quick fixes and black-hat tactics.

What does E-E-A-T mean in the context of Google updates?

E-E-A-T stands for Experience, Expertise, Authoritativeness, and Trustworthiness. It is not a direct ranking factor but rather a framework by which Google's Quality Raters assess the quality of search results. These evaluations help Google train its algorithms to better recognize high-quality, credible content, which underlies almost every Core Update.

How do AI Overviews affect a website's traffic?

AI Overviews shift visibility from traditional clicks to AI answers. In the US, 68.01 percent of Google searches already ended without a click in 2026, and a randomized field experiment found a 38 percent reduction in organic clicks for triggered queries. Moreover, a good traditional ranking does not guarantee visibility in the AI answer, which is why Generative Engine Optimization (GEO) emerges as a new dimension.

Where can I officially find out if a Google update is currently running?

The official source is the Google Search Status Dashboard. It shows whether a confirmed ranking, spam, or other update is currently running, including start and end dates. Additionally, Google Search Console provides the specific findings related to your own website, and third-party trackers such as Semrush Sensor or Advanced Web Ranking display daily SERP volatility across industries as an early warning signal.

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