CDN performance: 82.6% best: Fastly | The State of Web Vitals 2026

1

At a glance the headline numbers for CDN performance

Performance breakdown by cdn.

82.6%

Best: Fastly

good FCP

78.7%

Typical CDN

good FCP

75.3%

Worst: No CDN (origin)

good FCP

Fastly passes FCP most often of any CDN. 82.6% of its sites pass. No CDN (origin) (the most-used CDN) passes least at 75.3%. The gap is 7 percentage points.

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

2

The ranking sorted by FCP at p75, fastest first

#	CDN	FCP p75	Passing	Sites
1	Fastly	1.5s	82.6%	6,437
2	Cloudflare	1.6s	81.8%	23,785
3	Akamai	1.7s	79.2%	4,955
4	Vercel	1.7s	78.7%	980
5	CloudFront	1.7s	77.2%	6,141
6	Netlify	1.8s	76.2%	343
7	No CDN (origin)	1.8s	75.3%	142,621

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

3

Passing FCP per CDN which group passes the FCP most often

CDNSitesPassing FCPp75

Fastly 3.4% 6,437 83% 1.5s

Cloudflare 12.5% 23,785 82% 1.6s

Akamai 2.6% 4,955 79% 1.7s

Vercel 0.5% 980 79% 1.7s

CloudFront 3.2% 6,141 77% 1.7s

Netlify 0.2% 343 76% 1.8s

No CDN (origin) 75.1% 142,621 75% 1.8s

Good Needs Improvement Poor Sorted best-passing first · median colored by its own rating · pass = good FCP (1.8s at p75) · one value per site

83% of Fastly sites pass FCP. No CDN (origin) trails 8 points behind. computed

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

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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) 75.1%

822.2s

95106ms

880.03

751.8s

561.3s

Cloudflare 12.5%

862.0s

94117ms

880.04

821.6s

69950ms

Fastly 3.4%

862.0s

94104ms

880.02

831.5s

72867ms

CloudFront 3.2%

812.3s

91136ms

780.09

771.7s

621.1s

Akamai 2.6%

832.1s

97110ms

860.04

791.7s

601.1s

Vercel 0.5%

822.2s

91150ms

840.05

791.7s

88561ms

Netlify 0.2%

782.4s

75217ms

690.17

761.8s

481.1s

60%95%+ passing Cell: pass rate, small number = p75 · faded rows: under 100 sites

One row per CDN, 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.

Fastly leads on FCP: 83% of its sites pass. No CDN (origin) trails at 75%. computed

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

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Why this matters for the Core Web Vitals, and where to start fixing it

A CDN sits between your server and your visitors, serving content from a location near each of them instead of from a single origin. That shortens the trip every request makes, which shows up first in Time to First Byte and then in how quickly the main content can paint. A good CDN also handles caching, compression and modern protocols, so the gains reach well beyond raw distance.

Start by making sure the CDN is actually caching your pages and assets rather than passing everything through to the origin. Turn on compression and HTTP/2 or HTTP/3, set sensible cache headers, and check that your largest image is served from the edge. A CDN that passes every request through to the origin gives you almost none of this.

How does your CDN affect Core Web Vitals?

Among the most-used CDNs, Fastly reaches a good FCP on 82.6% of sites; No CDN (origin) on 75.3%.

Go fix it Configure Cloudflare for Core Web Vitals → Resource prioritization guide → 103 Early Hints →