Blog

Articles about protecting ads from bots and click fraud

Protection in ad accounts

  • Why Google Ads can show more conversions than clicks

    In rare cases Google Ads keeps a conversion and later invalidates and removes the click that led to it. Before the billing period ends, invalid traffic is removed from both the invoice and the metrics. A credit after the invoice does not rewrite metrics.

    6 min read
  • Why a Yandex Direct IP block stops at 25 addresses

    One Direct campaign can block impressions for no more than 25 IP addresses. The help does not recommend the block even when activity looks suspicious: the address changes, and a proxy gives one IP to many people.

    6 min read
  • Why a VK Ads budget can disappear in a day

    VK Ads help explains fast spend by the bid, a wide audience and a second-price auction. That page does not mention bots or refunds. How to read eCPM, and what placement settings do not prove.

    6 min read

Website bot protection

  • How Google and Yandex slow their own crawl

    Google lowers crawl budget when a site slows down, returns 5xx, or sends 429. Yandex reduces requests on a 429. Google does not support Crawl-delay, and 401 or 403 do not lower its crawl rate.

    6 min read

Analytics and solutions

Bots and technology

  • Blocking Google-Extended does not remove a site from Search

    The Google-Extended token in robots.txt decides whether already downloaded content may train future Gemini models and be used for grounding. It does not affect inclusion in Search or a ranking signal, and it has no User-Agent of its own.

    5 min read

Metrics and calculations

Detecting click fraud

Project news

Leads and inquiries

  • How to tell a real lead from a fake one

    What Direct does not treat as an invalid conversion, how a call longer than 30 seconds differs from spam, and how the CRM status Spam order reaches Metrica.

    12 min read
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