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

0.06

Best CLS (p75)

Google AdSense

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

The ranking sorted by CLS at p75, fastest first

#	Provider	CLS p75	Passing	Sites
1	Google AdSense	0.06	84.6%	6,899
2	Google Publisher Tag/GAM	0.10	76.3%	1,487
3	Criteo	0.12	73.5%	231
4	Amazon Publisher Services	0.12	71.5%	158
5	Prebid.js	0.13	70.5%	441
6	Taboola	0.14	68.2%	247

The State of Web Vitals · Q1 2026 · 94,910 sites · phone 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 85% 0.06

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

Criteo 0.2% 231 74% 0.12

Index Exchange 0% 24 73% 0.12

Amazon Publisher Services 0.2% 158 72% 0.12

Outbrain 0% 8 71% 0.13

Prebid.js 0.5% 441 71% 0.13

Taboola 0.3% 247 68% 0.14

Media.net 0% 8 43% 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

85% of Google AdSense sites pass CLS. Taboola trails 17 points behind, leaving 32% of its sites failing. computed

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

85173ms

850.06

731.9s

541.3s

Google Publisher Tag/GAM 1.6%

832.2s

83177ms

760.10

821.6s

70916ms

Prebid.js 0.5%

842.2s

84170ms

710.13

851.6s

74821ms

Taboola 0.3%

802.3s

78183ms

680.14

801.7s

73825ms

Criteo 0.2%

772.4s

73208ms

740.12

741.9s

581.1s

Amazon Publisher Services 0.2%

832.1s

78183ms

720.12

821.6s

77749ms

Index Exchange 0%

772.3s

91154ms

730.12

821.5s

73798ms

Outbrain 0%

862.2s

86154ms

710.13

861.3s

71716ms

Media.net 0%

433.5s

80183ms

430.91

432.6s

172.0s

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: 85% of its sites pass. Taboola trails at 68%. computed

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