Qualität & Google-Updates

About-us page and author profiles as E-E-A-T signals — they make accountability and expertise visible and serve as central trust anchors for both quality raters and knowledge graph systems.

Content recency as a ranking factor — primarily relevant for time-sensitive topics (news, tech reviews, regulatory changes). Rooted in the "Query Deserves Freshness" concept inside the Google algorithm.

A major, publicly announced Google update to the core algorithm — typically broad and topic-agnostic, causing significant visibility shifts across many domains.

E-E-A-T stands for Experience, Expertise, Authoritativeness and Trust — four quality criteria from Google's Search Quality Rater Guidelines used to assess content and websites.

HCU recovery is the process of regaining visibility after being hit by a Helpful Content Update — via content audit, cleaning up weak material, and strengthening verifiable expertise.

Google's machine-learning system that classifies content site-wide as "people-first" or not — launched as a standalone classifier, integrated into core ranking in March 2024.

The Helpful Content Update is a series of Google algorithm updates starting August 2022 that prioritize "human, people-first" content and demote thin, search-engine-first material.

Panda (2011) and Penguin (2012) were two formative Google algorithm updates. Panda targeted thin, low-quality content, Penguin manipulative link building. Both are now part of the core algorithm.

The Product Reviews Update was a series of Google algorithm updates starting April 2021 that distinguished product reviews with real, in-depth hands-on research from shallow affiliate lists.

Internal evaluation document Google uses to instruct external quality raters on how to assess search results — basis for the E-E-A-T concept and the source of many algorithm updates.

External reputation of a brand or author via reviews, mentions, and third-party sources — explicitly part of the trust assessment in the Quality Rater Guidelines, especially for YMYL topics.

Reviews updates are Google algorithm updates that rank review content by depth, hands-on experience, and added value — shallow affiliate lists get demoted.

Trustworthiness signals are visible and technical proofs that a website and its content can be trusted — author credentials, imprint, HTTPS, transparent sources, external reputation signals.

YMYL refers to content that can impact users' financial well-being, health, safety, or happiness. Google applies particularly strict quality and trust standards to these topics.