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

0.11

Best CLS (p75)

Google AdSense

The State of Web Vitals · Q1 2026 · 94,910 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	74.1%	6,899
2	Google Publisher Tag/GAM	0.12	69.8%	1,487
3	Criteo	0.13	65.4%	231
4	Amazon Publisher Services	0.14	63.8%	158
5	Taboola	0.14	67.2%	247
6	Prebid.js	0.14	63.6%	441

The State of Web Vitals · Q1 2026 · 94,910 sites · desktop 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 74% 0.11

Outbrain 0% 8 71% 0.10

Google Publisher Tag/GAM 1.6% 1,487 70% 0.12

Taboola 0.3% 247 67% 0.14

Criteo 0.2% 231 65% 0.13

Amazon Publisher Services 0.2% 158 64% 0.14

Prebid.js 0.5% 441 64% 0.14

Index Exchange 0% 24 57% 0.15

Media.net 0% 8 50% 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

74% of Google AdSense sites pass CLS. Prebid.js trails 10 points behind, leaving 36% of its sites failing. computed

The State of Web Vitals · Q1 2026 · 94,910 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 7.3%

862.0s

9982ms

740.11

811.6s

601.2s

Google Publisher Tag/GAM 1.6%

891.9s

9886ms

700.12

871.4s

71867ms

Prebid.js 0.5%

891.9s

9794ms

640.14

901.3s

74816ms

Taboola 0.3%

901.9s

9993ms

670.14

901.4s

81717ms

Criteo 0.2%

872.0s

95113ms

650.13

861.6s

67936ms

Amazon Publisher Services 0.2%

881.9s

9696ms

640.14

891.3s

78754ms

Index Exchange 0%

872.2s

100104ms

570.15

871.3s

70830ms

Outbrain 0%

861.6s

8672ms

710.10

1001.3s

71779ms

Media.net 0%

502.9s

100137ms

500.15

502.5s

332.4s

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: 74% of its sites pass. Amazon Publisher Services trails at 64%. computed

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