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

9,463

Sites in sample

Combined across all items

0.07

Best CLS (p75)

Google AdSense

The State of Web Vitals · Q1 2026 · 94,910 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	83.0%	6,899
2	Google Publisher Tag/GAM	0.10	75.9%	1,487
3	Criteo	0.13	71.9%	231
4	Prebid.js	0.13	69.4%	441
5	Amazon Publisher Services	0.14	69.4%	158
6	Taboola	0.14	69.0%	247

The State of Web Vitals · Q1 2026 · 94,910 sites · all devices field datacorewebvitals.io/state-of-cwv

Passing CLS per provider which group passes the CLS most often

ProviderSitesPassing CLSp75

Google AdSense 7.3% 6,899 83% 0.07

Google Publisher Tag/GAM 1.6% 1,487 76% 0.10

Outbrain 0% 8 75% 0.10

Criteo 0.2% 231 72% 0.13

Prebid.js 0.5% 441 69% 0.13

Amazon Publisher Services 0.2% 158 69% 0.14

Taboola 0.3% 247 69% 0.14

Index Exchange 0% 24 67% 0.13

Media.net 0% 8 50% 0.91

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. Taboola trails 14 points behind, leaving 31% of its sites failing. computed

The State of Web Vitals · Q1 2026 · 94,910 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

Google AdSense 7.3%

792.4s

90150ms

830.07

731.9s

521.3s

Google Publisher Tag/GAM 1.6%

842.1s

87161ms

760.10

831.6s

69916ms

Prebid.js 0.5%

872.0s

86157ms

690.13

871.5s

77777ms

Taboola 0.3%

822.3s

79179ms

690.14

801.7s

72851ms

Criteo 0.2%

802.4s

78183ms

720.13

761.8s

601.1s

Amazon Publisher Services 0.2%

872.0s

83164ms

690.14

871.5s

79742ms

Index Exchange 0%

792.3s

92151ms

670.13

831.4s

79786ms

Outbrain 0%

882.0s

88149ms

750.10

881.3s

63843ms

Media.net 0%

503.5s

83171ms

500.91

502.5s

141.8s

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 CLS: 83% of its sites pass. Amazon Publisher Services trails at 69%. computed

The State of Web Vitals · Q1 2026 · 94,910 sites · all devices field datacorewebvitals.io/state-of-cwv

Related signals JS libraries (22) → Email marketing (7) → Font services (4) → CDN (15) → Chrome field data from 94,910 sites, representing millions of real page loads · How we measured