Ad networks impact: 6 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

17,864

Sites in sample

Combined across all items

0.07

Best CLS (p75)

Google AdSense

The State of Web Vitals · Q2 2026 · 189,915 sites · all devices field datacorewebvitals.io/state-of-cwv

The ranking sorted by CLS at p75, fastest first

#	Provider	CLS p75	Passing	Sites
1	Google AdSense	0.07	82.8%	12,952
2	Google Publisher Tag/GAM	0.11	74.9%	2,840
3	Prebid.js	0.12	70.4%	841
4	Criteo	0.13	70.6%	450
5	Amazon Publisher Services	0.14	67.3%	299
6	Taboola	0.14	68.6%	482

The State of Web Vitals · Q2 2026 · 189,915 sites · all devices field datacorewebvitals.io/state-of-cwv

Passing CLS per provider which group passes the CLS most often

ProviderSitesPassing CLSp75

Outbrain 0% 25 84% 0.08

Google AdSense 6.8% 12,952 83% 0.07

Google Publisher Tag/GAM 1.5% 2,840 75% 0.11

Index Exchange 0% 45 73% 0.11

Criteo 0.2% 450 71% 0.13

Prebid.js 0.4% 841 70% 0.12

Taboola 0.3% 482 69% 0.14

Amazon Publisher Services 0.2% 299 67% 0.14

Media.net 0% 21 38% 0.92

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

83% of Google AdSense sites pass CLS. Amazon Publisher Services trails 16 points behind, leaving 33% of its sites failing. computed

The State of Web Vitals · Q2 2026 · 189,915 sites · all devices 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

Criteo 0.2%

732.6s

77188ms

710.13

721.9s

561.1s

Google Publisher Tag/GAM 1.5%

842.1s

86162ms

750.11

831.6s

68930ms

Amazon Publisher Services 0.2%

852.1s

80171ms

670.14

861.5s

79733ms

Outbrain 0%

801.9s

88140ms

840.08

881.3s

72843ms

Index Exchange 0%

872.2s

93146ms

730.11

841.4s

80645ms

Google AdSense 6.8%

782.4s

90151ms

830.07

721.9s

521.3s

Prebid.js 0.4%

862.1s

86160ms

700.12

851.6s

74840ms

Taboola 0.3%

782.4s

80183ms

690.14

751.8s

65979ms

Media.net 0%

383.7s

88178ms

380.92

432.5s

201.4s

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: 83% of its sites pass. Amazon Publisher Services trails at 67%. computed

The State of Web Vitals · Q2 2026 · 189,915 sites · all devices field datacorewebvitals.io/state-of-cwv

Related signals JS libraries (25) → Email marketing (8) → Font services (4) → CDN (16) → Chrome field data from 189,915 sites, representing millions of real page loads · How we measured