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Reference + tools · static · no trackers

The open reference layer
for digital advertising.

Every term, every spec, every tool ad-ops engineers actually need — in one fast, ad-free site. Built for working professionals.

Browse the glossary Open the tools →

Glossary, with depth

Every acronym in ad tech, defined with worked examples and primary sources.

Specs, made readable

OpenRTB, ads.txt, sellers.json, VAST — the canon, rewritten for humans.

Tools, in your browser

Validators and calculators that run client-side. No sign-up. No tracking.

Format catalog

Standard ad sizes, video pods, native units — visualized and cross-referenced.