C-rank
Naver's source trust evaluation system that converts the quality, expertise, and consistency accumulated by a domain, author, or content line into trust signals
What is C-rank?
C-rank is Naver's long-running source trust evaluation system. It assesses the quality, expertise, and consistency that a domain, author, or content line has accumulated over time, and influences search result exposure and candidate selection for AI answers such as Naver AI Briefing.
What signals does it use?
Publicly observable behavior suggests the following signals are accumulated to weight trust:
- Content consistency on a stable topic or category
- Expertise accumulated by an author (blogger or specialist)
- Quality and engagement signals at the domain level
The exact weights and thresholds are not disclosed, so it is safer to acknowledge the likely impact of long-term operation rather than to assert a fixed formula.
Content perspective
One-shot content blasts rarely stabilize C-rank-style trust signals. The more category consistency accumulates over months, the higher the chance of being interpreted as an answer candidate by AI Briefing and AI Tab.
Related terms
Is your site visible in AI search?
See for free how ChatGPT, Perplexity, and Gemini describe your brand.
Start Free Diagnosis →