Ad networks impact WordPress sites

Ad networks ranked by performance impact.

Field data PhoneDesktopAll Scope All sites October 2026 edition · All devices field outcomes · WordPress sites only
Metric LCP INP CLS
WordPress Scoped to 63,295 sites out of 203,892 analyzed (cms) Compare with all sites →
1

At a glance the headline numbers for Ad networks impact

Ad networks ranked by performance impact.

6
Providers ranked
After min-sites filter
6,105
Sites in sample
Combined across all items
133ms
Best INP (p75)
Amazon Publisher Services
The State of Web Vitals · October 2026 · WordPress sites (63,295) · all devices field datacorewebvitals.io/state-of-cwv
2

The ranking sorted by INP at p75, fastest first

# Provider INP p75 Passing Sites
1 Amazon Publisher Services 133ms 96.8%
70
2 Google AdSense 138ms 93.4%
4,815
3 Prebid.js 151ms 92.3%
273
4 Google Publisher Tag/GAM 154ms 91.6%
811
5 Criteo 154ms 92.0%
53
6 Taboola 170ms 88.4%
83
The State of Web Vitals · October 2026 · WordPress sites (63,295) · all devices field datacorewebvitals.io/state-of-cwv
3

Passing INP per provider which group passes the INP most often

ProviderSitesPassing INPp75
Media.net 0% 6 100% 153ms
Amazon Publisher Services 0.1% 70 97% 133ms
Google AdSense 7.6% 4,815 93% 138ms
Prebid.js 0.4% 273 92% 151ms
Criteo 0.1% 53 92% 154ms
Google Publisher Tag/GAM 1.3% 811 92% 154ms
Index Exchange 0% 11 91% 163ms
Taboola 0.1% 83 88% 170ms
Good Needs Improvement Poor Sorted best-passing first · median colored by its own rating · pass = good INP (200ms at p75) · one value per site

No provider stands out: pass rates sit between 92% and 93%. computed

The State of Web Vitals · October 2026 · WordPress sites (63,295) · 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
Google AdSense 7.6%
642.9s
93138ms
810.08
522.5s
272.0s
Google Publisher Tag/GAM 1.3%
722.6s
92154ms
720.11
642.1s
451.5s
Prebid.js 0.4%
742.5s
92151ms
740.11
692.0s
551.2s
Taboola 0.1%
772.5s
88170ms
730.13
652.0s
481.4s
Amazon Publisher Services 0.1%
762.5s
97133ms
600.16
771.7s
72953ms
Criteo 0.1%
403.5s
92154ms
640.17
422.8s
301.8s
Index Exchange 0%
552.8s
91163ms
550.21
552.3s
461.5s
Media.net 0%
672.5s
100153ms
670.11
672.1s
01.8s
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.

Google AdSense leads on INP: 93% of its sites pass. Prebid.js trails at 92%. computed

The State of Web Vitals · October 2026 · WordPress sites (63,295) · all devices field datacorewebvitals.io/state-of-cwv
Related signals JS libraries (26) → Email marketing (8) → Font services (4) → CDN (16) → 203,892 crawled sites with Chrome field data, representing millions of real page loads · How we measured