Insights

Transfon Security Now Available in Prebid.js

Transfon Security is now part of Prebid.js 11.46.0. Publishers can filter bots and invalid traffic before the auction, protecting ad revenue and buyer trust.

How to Block AI Training Crawlers in robots.txt: The New __usage_ai-training Directive

The new __usage_ai-training robots.txt directive lets you block every AI training crawler, including Google-Extended, GPTBot and ClaudeBot, with a single entry instead of one per company. Here is what it does, what it does not cover, who honours it and when, and why you still need bot management alongside it.

Agentic Browsers and Meta-ExternalAgent: What to Block Before Meta's 20 November Terms

AI agents now reach forms and checkout without declaring themselves, and Meta's new crawling terms start on 20 November. How Transfon Security lets you see, limit and block agentic browser and Meta crawler traffic.

Keep Bots Out of Your Prebid Auctions: IVT Filtering for Header Bidding

Invalid traffic quietly drains publisher CPMs and bidder trust. Learn how the BiddingStack IVT filter, powered by Transfon Security, keeps bots and automation out of Prebid auctions so demand partners only bid on real people.

How to Clean Bot Traffic in GA4

GA4 only filters declared IAB bots. Learn which bot traffic still lands in your reports, why cleaning it protects both your insights and your ad campaigns, how to filter it with GA4 data filters or Transfon Security, and what not to do.

Introducing PubPerf MCP: Query Your Analytics with AI

PubPerf MCP lets publishers query Core Web Vitals, Prebid analytics, ad revenue, and content performance by simply asking AI assistants like Claude and ChatGPT.