Google's advertising network revenue (AdSense, AdMob, Ad Manager) has declined to 10% of total Google ad revenue—the lowest in company history. Combined with a 15x increase in AI crawler traffic and the January 2026 AdX crash, publishers are experiencing structural revenue decline, not temporary fluctuation.
Google's advertising revenue is now split:
This is the first time in Google's history that network revenue has fallen to single digits as a percentage of total ad revenue.
| Year | Network Revenue | Owned Properties |
|---|---|---|
| 2013 | 27% | 73% |
| 2015 | 24% | 76% |
| 2018 | 20% | 80% |
| 2021 | 16% | 84% |
| 2024 | 12% | 88% |
| 2025 | 10% | 90% |
"I've been watching Google's ad revenue mix shift from network to owned properties for over a decade. It just hit 90%."