1
At a glance the headline numbers for CDN performance
Performance breakdown by cdn.
7
Items ranked
After min-sites filter
94,906
Sites in sample
Combined across all items
0.08
Best CLS (p75)
Vercel
The State of Web Vitals · Q1 2026 · 94,910 sites · desktop field datacorewebvitals.io/state-of-cwv
2
The ranking sorted by CLS at p75, fastest first
| # | Item | CLS p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | Vercel | 0.08 | 81.1% | 538 | |
| 2 | Akamai | 0.08 | 79.6% | 2,663 | |
| 3 | Cloudflare | 0.08 | 79.9% | 12,431 | |
| 4 | Fastly | 0.09 | 77.8% | 3,357 | |
| 5 | No CDN (origin) | 0.09 | 77.9% | 72,501 | |
| 6 | Netlify | 0.11 | 72.3% | 175 | |
| 7 | CloudFront | 0.11 | 72.6% | 3,241 |
The State of Web Vitals · Q1 2026 · 94,910 sites · desktop field datacorewebvitals.io/state-of-cwv
3
Passing CLS per item which group passes the CLS most often
ItemSitesPassing CLSp75
Vercel 0.6% 538 0.08
Cloudflare 13.1% 12,431 0.08
Akamai 2.8% 2,663 0.08
No CDN (origin) 76.4% 72,501 0.09
Fastly 3.5% 3,357 0.09
CloudFront 3.4% 3,241 0.11
Netlify 0.2% 175 0.11
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
81% of Vercel sites pass CLS. Netlify trails 9 points behind, leaving 28% of its sites failing. computed
The State of Web Vitals · Q1 2026 · 94,910 sites · desktop field datacorewebvitals.io/state-of-cwv
4
All five vitals at once the whole category without toggling - cell is the pass rate, small number the p75
LCP
INP
CLS
FCP
TTFB
No CDN (origin) 76.4%
862.0s
9963ms
780.09
821.6s
621.1s
Cloudflare 13.1%
881.9s
9971ms
800.08
851.4s
68974ms
Fastly 3.5%
871.9s
9866ms
780.09
861.4s
621.0s
CloudFront 3.4%
842.1s
9782ms
730.11
821.5s
661.0s
Akamai 2.8%
891.9s
9963ms
800.08
851.5s
651.0s
Vercel 0.6%
901.8s
9990ms
810.08
921.2s
93434ms
Netlify 0.2%
772.4s
84128ms
720.11
851.4s
82753ms
60%95%+ passing Cell: pass rate, small number = p75 · faded rows: under 100 sites
One row per item, 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.
Vercel leads on CLS: 81% of its sites pass. Netlify trails at 72%. computed
The State of Web Vitals · Q1 2026 · 94,910 sites · desktop field datacorewebvitals.io/state-of-cwv
Related signals CMS (10) → Frameworks (11) → Chrome field data from 94,910 sites, representing millions of real page loads · How we measured
Chrome field data from 94,910 sites, representing millions of real page loads. How we measured.