Ad networks impact: 7 providers ranked | The State of Web Vitals 2026

LCP INP CLS

At a glance the headline numbers for Ad networks impact

Ad networks ranked by performance impact.

Providers ranked

After min-sites filter

20,089

Sites in sample

Combined across all items

0.11

Best CLS (p75)

Google AdSense

The State of Web Vitals · October 2026 · 212,308 crawled sites · desktop field datacorewebvitals.io/state-of-cwv

The ranking sorted by CLS at p75, fastest first

#	Provider	CLS p75	Passing	Sites
1	Google AdSense	0.11	74.5%	14,524
2	Taboola	0.13	68.4%	531
3	Google Publisher Tag/GAM	0.13	67.5%	3,212
4	Amazon Publisher Services	0.14	63.7%	329
5	Criteo	0.14	64.5%	494
6	Index Exchange	0.15	54.9%	53
7	Prebid.js	0.15	62.4%	946

The State of Web Vitals · October 2026 · 212,308 crawled sites · desktop field datacorewebvitals.io/state-of-cwv

Passing CLS per provider which group passes the CLS most often

ProviderSitesPassing CLSp75

Google AdSense 6.8% 14,524 75% 0.11

Outbrain 0% 29 74% 0.11

Taboola 0.3% 531 68% 0.13

Google Publisher Tag/GAM 1.5% 3,212 68% 0.13

Criteo 0.2% 494 65% 0.14

Amazon Publisher Services 0.2% 329 64% 0.14

Prebid.js 0.4% 946 62% 0.15

Media.net 0% 22 57% 0.17

Index Exchange 0% 53 55% 0.15

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

75% of Google AdSense sites pass CLS. Prebid.js trails 13 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

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 6.8%

852.1s

9883ms

750.11

801.6s

591.2s

Google Publisher Tag/GAM 1.5%

881.9s

9887ms

680.13

861.4s

71886ms

Prebid.js 0.4%

891.9s

9691ms

620.15

881.4s

73839ms

Taboola 0.3%

891.9s

9891ms

680.13

881.4s

77752ms

Criteo 0.2%

862.1s

93117ms

650.14

861.5s

69913ms

Amazon Publisher Services 0.2%

862.0s

9597ms

640.14

881.3s

77754ms

Index Exchange 0%

822.2s

10079ms

550.15

841.3s

72839ms

Outbrain 0%

891.6s

9265ms

740.11

931.2s

78697ms

Media.net 0%

572.7s

100149ms

570.17

572.3s

502.0s

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 CLS: 75% of its sites pass. Prebid.js trails at 62%. computed

The State of Web Vitals · October 2026 · 212,308 crawled sites · desktop field datacorewebvitals.io/state-of-cwv

Related signals JS libraries (26) → Email marketing (8) → Font services (4) → CDN (16) → 212,308 crawled sites with Chrome field data, representing millions of real page loads · How we measured