Ad networks impact WordPress sites
Ad networks ranked by performance impact.
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
2.5s
Best LCP (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 LCP at p75, fastest first
| # | Provider | LCP p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | Amazon Publisher Services | 2.5s | 76.1% | 70 | |
| 2 | Taboola | 2.5s | 76.5% | 83 | |
| 3 | Prebid.js | 2.5s | 74.3% | 273 | |
| 4 | Google Publisher Tag/GAM | 2.6s | 72.3% | 811 | |
| 5 | Google AdSense | 2.9s | 64.4% | 4,815 | |
| 6 | Criteo | 3.5s | 39.6% | 53 |
The State of Web Vitals · October 2026 · WordPress sites (63,295) · all devices field datacorewebvitals.io/state-of-cwv
3
Passing LCP per provider which group passes the LCP most often
ProviderSitesPassing LCPp75
Taboola 0.1% 83 2.5s
Amazon Publisher Services 0.1% 70 2.5s
Prebid.js 0.4% 273 2.5s
Google Publisher Tag/GAM 1.3% 811 2.6s
Media.net 0% 6 2.5s
Google AdSense 7.6% 4,815 2.9s
Index Exchange 0% 11 2.8s
Criteo 0.1% 53 3.5s
Good Needs Improvement Poor Sorted best-passing first · median colored by its own rating · pass = good LCP (2.5s at p75) · one value per site
74% of Prebid.js sites pass LCP. Google AdSense trails 10 points behind, leaving 36% of its sites failing. 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.
Prebid.js leads on LCP: 74% of its sites pass. Google AdSense trails at 64%. 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
203,892 crawled sites with Chrome field data, representing millions of real page loads. How we measured.