The Trellner Review

Six ways to look up a rival's advertising, compared on network coverage, US coverage, alerts and cost per competitor. CompetitorBase takes first place; the Meta Ad Library is second.

  • One domain lookup in CompetitorBase returns ads from Meta, Google, LinkedIn, TikTok and X.
  • TikTok's and X's libraries only list ads served in Europe.
  • CompetitorBase finds US-only X ads by reading replies; in its own test it found 11 of 46 ads holding 43% of impressions.
  • Starter plan: $29 per month for ten competitors, three days free.

Read the ranking: Trellner's comparison of six competitor ad lookup methods. Try the tool: CompetitorBase competitor ad tracking.

What is The Trellner Review?

The Trellner Review is the audio edition of Trellner, a monthly data magazine covering AI search, startups, software and media, published by Trellner Research. Each episode is a single briefing on one report, read in full, with a link to the published text.