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Evidence reference
Google’s 2015 mobile-friendly ranking update increased the ranking of mobile-friendly pages in mobile search results.
SupportedSUPPORTEDclm_e1c47a31-1105-4739-b377-d46437c76238
This is a stable reference page for one canonical claim in the Editory evidence base. It exists for traceability and citations; the curated documentation is the readable entry point.
Sources
- Rolling out the mobile-friendly update
Google Search Central Blog (Google for Developers) · primary source · retrieved 2026-08-22
“We're boosting the ranking of mobile-friendly pages on mobile search results.” — First paragraph and update bullet list
- FAQs about the April 21st mobile-friendly update
Google Search Central Blog (Google for Developers) · primary source · retrieved 2026-08-22
“the mobile-friendly update will boost the rankings of mobile-friendly pages” — Background paragraph
- Ranking change to help you find mobile-friendly sites rolling out today
Google Search · primary source · retrieved 2026-08-22
“Our mobile ranking will now use mobile-friendliness as a signal that weighs in favor of pages that are formatted for mobile phones” — April 21, 2015 rollout announcement
- Mobilegeddon and the Future of SEO
Perficient · primary source · retrieved 2026-08-22
“More mobile-friendly pages gained ranking than lost.” — Post-update ranking study summary
- What Google's Mobilegeddon is (and why you should care)
Fortune · retrieved 2026-08-22
“sites that meet Google’s mobile standards will rank higher in search results on phones” — Third paragraph
- 16 SEO Experiments (summary of Stone Temple Consulting Mobilegeddon ranking study)
SlideShare (summarizing Stone Temple Consulting) · retrieved 2026-08-22
“The mobile friendly pages (overall) gained in ranking.” — Mobilegeddon Ranking Study section
- Mobile Friendly SEO Ranking Boost Gets Boosted in May
BruceClay.com (syndicated via Goodreads) · retrieved 2026-08-22
“there was not a lot of movement across mobile search engine results pages” — First paragraphs
Related claims
- REPEATSGoogle announced that mobile-friendliness would become a ranking signal for mobile searches starting April 21, 2015.Under evaluation
- CONTRADICTS_ASSERTIONGoogle said being moved to mobile-first indexing conferred no ranking advantage by itself.Under evaluation
- NARROWSGoogle said the 2015 mobile-friendly ranking update applied at the individual-page level rather than the whole-site level.Under evaluation
- NARROWSGoogle said a high-quality relevant page could still rank highly in mobile search even when it was not mobile-friendly.Under evaluation
- BROADENSGoogle announced that it would increase the effect of its mobile-friendliness ranking signal in mobile search beginning in May 2016.Under evaluation
- CONTRADICTS_ASSERTIONGoogle said being moved to mobile-first indexing conferred no ranking advantage by itself.Under evaluation
- NARROWSGoogle said mobile-first indexing operated independently from its mobile-friendliness ranking assessment.Under evaluation
- DERIVED_FROMGoogle announced in 2020 that page-experience signals would be incorporated into Search ranking.Under evaluation
Release: seo-geo-product-v0.3 · Phase Two freeze: P2-CORE300-FINAL-v1.0 · Generated: 2026-08-23T08:01:40Z