The Valuad blog
Field notes for publishers and AdOps teams on header bidding, Prebid, demand, privacy and ad performance. Written by the people who run Valuad's wrapper in production.
Ad refresh rules in 2026: what Google requires, what is only advice, and how to refresh with Prebid
Google Ad Manager requires declared refresh with a 30-second minimum; the viewability rule is guidance. How to set up refresh with Prebid without hurting CPMs.
ads.txt and sellers.json mistakes that quietly cost publishers revenue
Missing lines, wrong relationships, redirects and OWNERDOMAIN mismatches. The ads.txt and sellers.json errors that break authorization, and how to find them.
Chrome third-party cookies in 2026: what actually happened and what publishers should do now
Chrome never removed third-party cookies, and Google has retired most Privacy Sandbox APIs. A dated timeline and a checklist for publisher ad stacks.
Google's ad tech remedies: what changes for publishers running Prebid
Judge Brinkema's September 2026 remedies force AdX to work with Prebid and rival ad servers. What is known, what is still pending, and what to prepare.
Header bidding vs Open Bidding vs the waterfall: how each auction works in 2026
How the waterfall, Prebid header bidding and Google Open Bidding decide who fills an ad slot, what each costs you, and how the 2026 Google remedies change them.
How to set your Prebid timeout from your own data, not a blog post's range
Prebid's default bidder timeout is 3000 ms and most advice says 1000 to 2000. Here is how to measure bidder latency on your pages and pick the number yourself.
TCF 2.3 and GPP for Prebid publishers: the 2026 consent setup that keeps demand bidding
TCF 2.3 is mandatory, USP is deprecated and GAM only reads some GPP sections. How to configure Prebid consent modules so bidders keep bidding.
More Prebid bidders is not more revenue: how to find the ones costing you money
On one news site, four bidders sent 21% of bid requests and earned 0.34% of revenue. How to measure bidder value per request and trim without losing demand.
Talk to the team behind Israel's largest publishers
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