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
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.
- SERP volatilityThe rate of change in search result rankings over a time window. High volatility usually signals a core update or major spam action in progress.
- Topical authorityThe perceived depth and breadth of a domain's coverage of a topic. Post-HCU, depth + first-hand expertise are weighted more heavily than breadth.