Glossary
What is Brand safety?
Also called: brand safety floor
Brand safety means keeping ads away from content no advertiser will fund, and keeping harmful or unsuitable ads away from a publisher's readers.
हिंदी में पढ़ेंFor advertisers, brand safety is the floor no brand will fund, such as terrorist propaganda or illegal goods. Above that floor sits brand suitability: each brand sorts sensitive topics into high, medium and low risk and picks its own limit. An airline may avoid conflict news entirely while a bank accepts medium risk. Same page, two answers.
These tiers came from GARM, an advertiser alliance the WFA discontinued in August 2024, but its categories reportedly still shape buying tools. Crude keyword lists add noise: block a word like “shoot” and a photography guide loses bids too. In 2023 The Guardian told Digiday its CPMs fell about a quarter when pages were flagged unsafe.
Publishers face the mirror problem: keeping unsuitable ads away from their readers. In Google Ad Manager, protections block ads by category, advertiser, URL or buyer. Every category you block removes some bidders, so prefer narrow blocks, and check the estimated revenue impact Ad Manager shows before you add a general category block.
Example
Ten bidders usually compete for a market-news page. On a crash day, 4 of them carry keyword blocklists with “crash” or “recession” and skip it. With 6 left, 40% of the competition is gone, and the winning price can drop even though the page did nothing wrong.
Why it matters to publishers
Misclassified pages lose bids, and unsuitable ads lose readers' trust. Clear context and narrow blocks protect revenue on both sides.