Algorithm
Helpful Content Update
Also known as: HCU
Google's quality-focused update class targeting low-value, AI-generated, or thin content. Successive HCUs have favoured first-hand experience and named expertise over comprehensive but shallow coverage.
What it is
A quality-focused update class that demotes low-value, mass-produced, AI-generated, or thin pages created primarily to rank rather than to help people. It favours first-hand experience and named expertise over coverage that is comprehensive but shallow.
Why it matters
It governs whether content is treated as a credible source at all, which feeds both classical ranking and AI source selection. Pages judged unhelpful can drag down a whole domain's perceived quality, not just the offending URLs.
How it works
Signals of genuine helpfulness, original insight, and demonstrated experience are weighted up while generic, derivative coverage is weighted down, so the response is to add first-hand detail, named authors, and original analysis. Prune or consolidate pages that exist only to capture keywords.
When it applies
Its signals now run continuously as part of the core system rather than only at discrete named events.
Examples
- A product review with real usage photos and trade-offs outranking a spec-sheet rewrite.
- A guide bylined by a named practitioner favoured over an anonymous aggregated article.
- A site recovering after deleting hundreds of templated, low-value location pages.
How it is measured
- Ratio of pages with first-hand experience signals to total indexed pages
- Engagement depth such as dwell time and scroll completion
- Proportion of original versus derivative content in a section
- Author attribution and credential coverage across the catalogue
Insights on Helpful Content Update
Related terms in Algorithm
- Core updateA broad Google algorithm update affecting search rankings sitewide rather than a single feature. Recent core updates (e.g. May 2026) have increasingly favoured intent-aligned content over keyword-optimised content.
- EEATGoogle's quality framework: Experience, Expertise, Authoritativeness, Trustworthiness. EEAT signals are increasingly weighted in both classical ranking and AI Overview source selection.
- Entity salienceEntity salience is a measure of how central an entity is to a piece of content, as opposed to merely being mentioned in it. Natural language processing systems assign a salience score based on signals such as position, frequency, grammatical role and surrounding context. It helps a system decide what a document is actually about.
- Google Search algorithmThe Google Search algorithm is the collection of ranking and retrieval systems Google uses to find, order and present results for a query. It is not a single formula but many interacting systems that assess content, links, query intent, context and user signals. Google updates these systems continuously, with larger changes announced as core updates.
- Google Spam UpdateA Google Spam Update is a rollout of changes to the systems Google uses to detect and demote content that breaks its spam policies. These updates target things like scaled content abuse, cloaking, hacked pages, link schemes and site reputation abuse rather than general content quality. Sites hit by a spam update usually need to remove the offending practices before they can recover.
- Ranking signalsRanking signals are the inputs a search system uses to decide which results to show and in what order. They include relevance signals from the page and query, quality and authority signals, and context such as location, device and language. Search engines do not publish the full list or the weightings, so practitioners work from documented signals, patents, testing and observed patterns.