Social & Video Checker
Safe-zone overlays, image and video specs, and a standards-conformant loudness meter for Meta, TikTok, YouTube and Pinterest.
Open the Checker →Registry verified 15 Oct 2026 · 44 active placements · 4 publishers and 3 ad servers
Know before you send.
Check videos, images and HTML5 banners against each platform's and publisher's own published rules. Every result shows its source. Your files never leave your device.
HTML5 Ad Validator
Package, clickTag, weight and size checks for Adform, Google Ad Manager, Equativ, Sanoma, Alma Media, Kärkimedia and Otavamedia.
Open the validator →Specifications Library
Browse specs and download safe-zone templates, each with its source, the date it was read and how it was verified.
Open the library →How sure is each rule?
We label every rule with where it comes from. Only verified official requirements can fail a file.
- AOfficial requirement
Can fail a file
- BOfficial recommendation
Warns
- CMeasured from official template
Safe zones, measured pixel by pixel
- DBest practice
Only as a target you choose
- EUnverified
Hidden unless you ask