Ad networks impact React sites

Ad networks ranked by performance impact.

Field data PhoneDesktopAll Scope All sites October 2026 edition · Desktop field outcomes · React sites only
Metric LCP INP CLS
React Scoped to 9,570 sites out of 210,902 analyzed (frameworks) Compare with all sites →
1

At a glance the headline numbers for Ad networks impact

Ad networks ranked by performance impact.

2
Providers ranked
After min-sites filter
944
Sites in sample
Combined across all items
78ms
Best INP (p75)
Google AdSense
The State of Web Vitals · October 2026 · React sites (9,570) · desktop field datacorewebvitals.io/state-of-cwv
2

The ranking sorted by INP at p75, fastest first

# Provider INP p75 Passing Sites
1 Google AdSense 78ms 97.3%
863
2 Google Publisher Tag/GAM 143ms 89.7%
81
The State of Web Vitals · October 2026 · React sites (9,570) · desktop field datacorewebvitals.io/state-of-cwv
3

Passing INP per provider which group passes the INP most often

ProviderSitesPassing INPp75
Criteo 0.2% 19 100% 151ms
Index Exchange 0.1% 6 100% 136ms
Taboola 0.1% 5 100% 124ms
Amazon Publisher Services 0.1% 5 100% 84ms
Google AdSense 9% 863 97% 78ms
Prebid.js 0.2% 18 92% 132ms
Google Publisher Tag/GAM 0.8% 81 90% 143ms
Good Needs Improvement Poor Sorted best-passing first · median colored by its own rating · pass = good INP (200ms at p75) · one value per site
The State of Web Vitals · October 2026 · React sites (9,570) · 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
Google AdSense 9%
682.7s
9778ms
750.10
652.2s
451.9s
Google Publisher Tag/GAM 0.8%
782.2s
90143ms
570.16
881.4s
70860ms
Criteo 0.2%
882.2s
100151ms
470.15
881.1s
82737ms
Prebid.js 0.2%
832.2s
92132ms
500.15
921.0s
83570ms
Index Exchange 0.1%
832.2s
100136ms
500.12
100964ms
100390ms
Taboola 0.1%
673.9s
100124ms
670.15
333.2s
672.1s
Amazon Publisher Services 0.1%
1001.4s
10084ms
250.20
100861ms
100373ms
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.

The State of Web Vitals · October 2026 · React sites (9,570) · desktop field datacorewebvitals.io/state-of-cwv
Related signals JS libraries (26) → Email marketing (8) → Font services (4) → CDN (16) → 210,902 crawled sites with Chrome field data, representing millions of real page loads · How we measured