Blocking Score

The blocking score is calculated using a separate formula that does not feed into the open score. It ranges from 0 to 100 and represents how effectively the site blocks AI crawlers.

Formula

base           = (blocked_agents / total_agents) × 70
intentional    = llms.txt present ? 20 : 0
waf            = WAF/CDN detected ? 10 : 0
blocking_score = min(100, base + intentional + waf)

Why intentionality matters

A site with Disallow: / for all agents but no llms.txt may be blocking AI crawlers accidentally - for example, a misconfigured WAF default. The presence of llms.txt signals a deliberate stance, which earns the 20-point intentionality bonus.

Score labels

Score	Condition	Label
≥ 70	-	Blocking effectively
40–69	-	Partially blocking
< 40	With blocked agents	Blocking incompletely
0	No blocked agents	No agents blocked