In November 2025, the addition of 442,117 new ads.txt lines and the removal of 398,949 existing lines resulted in a net change of approximately 43.1k + lines, showing an increase from October with an even stronger positive shift this month.
The changes in the ads.txt lines show notable improvements compared to previous months. Here are some top SSPs that have gained a good number of new connections.
- Criteo and PubMatic led ads.txt growth this month, driven by streamlined publisher onboarding and expanded access to premium video and CTV inventory through new strategic partnerships. PubMatic’s recent collaborations with MNTN and NVIDIA have further strengthened its infrastructure and demand connectivity.
- OpenX and Rubicon Project (Magnite) recorded strong growth this month, driven by platform enhancements and improved curation capabilities that strengthened partnerships and optimized supply path efficiency
Want to know more? Please download the full report for a detailed breakdown.
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