Brand Mentions vs. Backlinks: The Ahrefs 75K Brand Study
The Ahrefs 75K Brand Study (May/December 2025) analyzed brands with Domain Rating above 40 and discovered that brand mentions correlate 3x more strongly with AI visibility than backlinks. YouTube mentions are the strongest single predictor at r=0.737, while traditional backlinks only reach r=0.218.
Key Takeaways
- ✓YouTube mentions are the strongest predictor for AI visibility (r=0.737)
- ✓Branded web mentions: r=0.656-0.709
- ✓Backlinks correlate only at r=0.218 — 3x weaker than brand mentions
- ✓10X multiplier: Top quartile receives 169 vs. 14 median AI mentions
- ✓96% of AI citations come from earned media, not from own domains
- ✓Only 11% of ChatGPT citations link to the brand being discussed itself
- ✓Share of Model (SoM) is the new metric: How often, prominently, and positively a brand appears
The Ahrefs 75K-Brand Study fundamentally changed geo-understanding. Brand Mentions — not backlinks — are the strongest predictor of AI visibility.
The Correlation Hierarchy
The December 2025 expansion across ChatGPT, Google AI Mode, and AI Overviews delivered the field's most important insight. YouTube mentions correlate strongest at r=0.737. YouTube mention impressions follow at r=0.717. Branded Web Mentions reach r=0.656-0.709. Branded Anchors sit at r=0.511-0.628. Branded Search Volume at r=0.352-0.466. Domain Rating at r=0.266-0.326. And backlinks — the most important traditional SEO factor — only r=0.218.
The 10X Multiplier
Brands in the top quartile for web mentions receive 10 times more AI Overview mentions than the next quartile: 169 versus 14 at the median. Cross-platform overlap ranges from 0.749 to 0.821 — the same major brands dominate all AI platforms.
Earned Media Dominates
96 percent of AI citations come from Earned Media — not brand-owned domains. Only 11 percent of ChatGPT citations link back to the brand being discussed. Brands investing exclusively in on-site optimization miss 85 percent of citation surface area.
Share of Model as New Metric
The INSEAD/Jellyfish research (Harvard Business Review, June 2025) formalized Share of Model (SoM) as a metric — coined by Jack Smyth, Chief Solutions Officer at Jellyfish. SoM measures how often, prominently, and positively a brand appears in AI responses. Their finding: There is no page two with LLMs — brands are either in the consideration set or don't appear at all.
Strategic Implication
Priority shifts from on-site to off-site: YouTube presence (breadth more important than reach), Reddit engagement, G2/Capterra reviews, industry publications, and PR placements are the new backlinks of the AI era.
Data & Statistics
Branded Web Mentions korrelieren mit 0,664 am stärksten mit KI-Sichtbarkeit in AI Overviews, Backlinks nur mit 0,218 (Verhältnis rund 3:1); 75.000 Marken analysiert.
Ahrefs Blog - An Analysis of AI Overview Brand Visibility Factors (75K Brands Studied) (2025)YouTube-Erwähnungen zeigen mit rund 0,737 die stärkste Korrelation mit KI-Sichtbarkeit über ChatGPT, Google AI Mode und AI Overviews hinweg; Backlinks und URL Rating korrelieren nahe null. 75.000 Marken über 3 KI-Systeme.
Ahrefs Blog - Top Brand Visibility Factors in ChatGPT, AI Mode, and AI Overviews (75k Brands Studied) (2025)Branded Web Mentions korrelieren je KI-System unterschiedlich: AI Mode 0,709, ChatGPT 0,664, AI Overviews 0,656; AI Mode gewichtet klassische Markensignale durchgängig am stärksten.
Ahrefs Blog - Top Brand Visibility Factors in ChatGPT, AI Mode, and AI Overviews (75k Brands) (2025)Marken im obersten Quartil der Web-Erwähnungen erhielten im Schnitt rund 169 AI-Overview-Nennungen, über zehnmal mehr als das nächste Quartil mit etwa 14 Nennungen; die unteren zwei Quartile 0 bis 3 Nennungen.
Ahrefs Blog - An Analysis of AI Overview Brand Visibility Factors (75K Brands Studied) (2025)85,5 Prozent der KI-Zitate stammen aus Earned Media, nicht von Marken-Websites, laut Muck-Rack-Auswertung von über einer Million KI-Prompts.
PR Newswire (5W Public Relations) zu Muck Racks Analyse (2026)Bei Ahrefs erzeugten 0,5 Prozent des Traffics aus KI-Suche 12,1 Prozent aller Signups; KI-Besucher konvertieren rund 23-mal häufiger als klassischer organischer Suchtraffic.
Ahrefs Blog (Patrick Stox) (2025)Der durchschnittliche KI-Such-Besucher ist gemessen an der Conversion-Rate 4,4-mal so wertvoll wie ein klassischer organischer Besuch; KI-Suche könnte bis Anfang 2028 mehr Traffic bringen als die klassische Suche.
Semrush - We Studied the Impact of AI Search on SEO Traffic (2025)AI Overviews wurden 2025 bei 6,49 Prozent der Anfragen (Januar), 24,61 Prozent (Juli, Peak) und 15,69 Prozent (November) ausgelöst; Datensatz über 10 Mio. Keywords.
Semrush - AI Overviews Study: What 2025 SEO Data Tells Us (2025)GEO kann die Sichtbarkeit in generativen Antworten um bis zu 40 Prozent steigern.
Aggarwal et al., GEO: Generative Engine Optimization (Princeton / KDD 2024) (2024)50 Prozent der Internetnutzenden ab 16 Jahren in Deutschland verwenden zumindest gelegentlich KI-Chats statt klassischer Suchmaschinen, 12 Prozent überwiegend oder ausschließlich.
Bitkom e.V. - Internet-Suche im Wandel: Die Hälfte nutzt bereits KI-Chats (2025)Rund 70 Prozent der österreichischen Konsumenten nutzen zumindest selten einen KI-Dienst; etwa 60 Prozent der Gen Z nutzen ChatGPT mehrmals pro Woche.
APA-Science - Handelsverband / Reppublika in Kooperation mit Google Austria (2025)FAQ
What is the Ahrefs 75K Brand Study?
Are brand mentions more important than backlinks for AI visibility?
Why are YouTube mentions so important for AI visibility?
What is Share of Model?
Is GEO worthwhile despite low AI traffic volumes?
Do I need an llms.txt for good AI visibility?
What should German-speaking B2B brands do now specifically?
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