Detect User Ad-Blockers, Disabled JavaScript, or Disabled Cookies
Submitted
December 05, 2025
For real-user sessions:
Detect if the visitor has:
Ad-blocker extensions enabled
JavaScript disabled
Cookies disabled or blocked
Display these attributes in session logs or user profiles.
Include summary metrics such as:
% of users with ad-blockers
% of users with JS/cookies disabled
Impact on analytics accuracy