Push notifications impact
Performance impact by push_notifications provider.
1
At a glance the headline numbers for Push notifications impact
Performance impact by push_notifications provider.
3
Providers ranked
After min-sites filter
669
Sites in sample
Combined across all items
0.12
Best CLS (p75)
OneSignal
The State of Web Vitals · October 2026 · 212,308 crawled sites · desktop field datacorewebvitals.io/state-of-cwv
2
The ranking sorted by CLS at p75, fastest first
| # | Provider | CLS p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | OneSignal | 0.12 | 68.5% | 369 | |
| 2 | Airship | 0.14 | 60.5% | 60 | |
| 3 | Firebase Cloud Messaging | 0.15 | 62.4% | 240 |
The State of Web Vitals · October 2026 · 212,308 crawled sites · desktop field datacorewebvitals.io/state-of-cwv
3
Passing CLS per provider which group passes the CLS most often
ProviderSitesPassing CLSp75
PushEngage 0% 21 0.11
OneSignal 0.2% 369 0.12
Firebase Cloud Messaging 0.1% 240 0.15
Airship 0% 60 0.14
Pushwoosh 0% 9 0.12
Good Needs Improvement Poor Sorted best-passing first · median colored by its own rating · pass = good CLS (0.1 at p75) · one value per site
69% of OneSignal sites pass CLS. Firebase Cloud Messaging trails 7 points behind, leaving 38% of its sites failing. computed
The State of Web Vitals · October 2026 · 212,308 crawled sites · desktop field datacorewebvitals.io/state-of-cwv
4
All five vitals at once the whole category without toggling - cell is the pass rate, small number the p75
LCP
INP
CLS
FCP
TTFB
OneSignal 0.2%
782.3s
9786ms
690.12
731.8s
461.3s
Firebase Cloud Messaging 0.1%
852.1s
9778ms
620.15
861.5s
67961ms
Airship 0%
882.0s
10079ms
610.14
881.4s
591.0s
PushEngage 0%
871.8s
9387ms
730.11
801.5s
361.0s
Pushwoosh 0%
712.4s
10069ms
430.12
711.8s
431.2s
60%95%+ passing Cell: pass rate, small number = p75 · faded rows: under 100 sites
One row per provider, one column per vital - the cell is the share of sites passing, the small number the p75. No toggling needed to see where the category actually differs.
OneSignal leads on CLS: 69% of its sites pass. Firebase Cloud Messaging trails at 62%. computed
The State of Web Vitals · October 2026 · 212,308 crawled sites · desktop field datacorewebvitals.io/state-of-cwv
Related signals E-commerce (17) → A/B testing (12) → Video (7) → Maps (4) → 212,308 crawled sites with Chrome field data, representing millions of real page loads · How we measured
212,308 crawled sites with Chrome field data, representing millions of real page loads. How we measured.