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
667
Sites in sample
Combined across all items
0.11
Best CLS (p75)
OneSignal
The State of Web Vitals · October 2026 · 210,902 crawled sites · all devices field datacorewebvitals.io/state-of-cwv
2
The ranking sorted by CLS at p75, fastest first
| # | Provider | CLS p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | OneSignal | 0.11 | 72.9% | 369 | |
| 2 | Firebase Cloud Messaging | 0.15 | 64.2% | 238 | |
| 3 | Airship | 0.21 | 58.6% | 60 |
The State of Web Vitals · October 2026 · 210,902 crawled sites · all devices field datacorewebvitals.io/state-of-cwv
3
Passing CLS per provider which group passes the CLS most often
ProviderSitesPassing CLSp75
Pushwoosh 0% 9 0.10
PushEngage 0% 21 0.09
OneSignal 0.2% 369 0.11
Firebase Cloud Messaging 0.1% 238 0.15
Airship 0% 60 0.21
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
73% of OneSignal sites pass CLS. Firebase Cloud Messaging trails 9 points behind, leaving 36% of its sites failing. computed
The State of Web Vitals · October 2026 · 210,902 crawled sites · all devices 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%
702.8s
89159ms
730.11
592.3s
501.4s
Firebase Cloud Messaging 0.1%
702.8s
94136ms
640.15
771.7s
66997ms
Airship 0%
792.2s
100134ms
590.21
741.8s
601.0s
PushEngage 0%
703.0s
78197ms
750.09
652.7s
211.9s
Pushwoosh 0%
782.2s
89152ms
890.10
781.6s
671.2s
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: 73% of its sites pass. Firebase Cloud Messaging trails at 64%. computed
The State of Web Vitals · October 2026 · 210,902 crawled sites · all devices field datacorewebvitals.io/state-of-cwv
Related signals E-commerce (17) → A/B testing (12) → Video (7) → Maps (4) → 210,902 crawled sites with Chrome field data, representing millions of real page loads · How we measured
210,902 crawled sites with Chrome field data, representing millions of real page loads. How we measured.