1
At a glance the headline numbers for Image CDNs impact
Performance impact by image_cdn provider.
9
Providers ranked
After min-sites filter
27,247
Sites in sample
Combined across all items
69ms
Best INP (p75)
Akamai Image Manager
The State of Web Vitals · Q2 2026 · 189,915 sites · desktop field datacorewebvitals.io/state-of-cwv
2
The ranking sorted by INP at p75, fastest first
| # | Provider | INP p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | Akamai Image Manager | 69ms | 98.9% | 7,230 | |
| 2 | Bunny Image Optimizer | 70ms | 98.9% | 17,146 | |
| 3 | Sirv | 81ms | 96.4% | 57 | |
| 4 | Thumbor | 81ms | 94.9% | 188 | |
| 5 | Imgix | 82ms | 97.3% | 805 | |
| 6 | Fastly Image Optimizer | 86ms | 99.2% | 1,139 | |
| 7 | ImageKit | 91ms | 97.1% | 78 | |
| 8 | Cloudinary | 94ms | 97.1% | 512 | |
| 9 | Uploadcare | 95ms | 97.1% | 92 |
The State of Web Vitals · Q2 2026 · 189,915 sites · desktop field datacorewebvitals.io/state-of-cwv
3
Passing INP per provider which group passes the INP most often
ProviderSitesPassing INPp75
Fastly Image Optimizer 0.6%
1,139
86ms
Bunny Image Optimizer 9%
17,146
70ms
Akamai Image Manager 3.8%
7,230
69ms
imgix 0.4%
805
82ms
Cloudinary 0.3%
512
94ms
Uploadcare 0%
92
95ms
ImageKit 0%
78
91ms
Sirv 0%
57
81ms
Thumbor 0.1%
188
81ms
Good
Needs Improvement
Poor
Sorted best-passing first · median colored by its own rating · pass = good INP (200ms at p75) · one value per site
No provider stands out: pass rates sit between 95% and 99%. computed
The State of Web Vitals · Q2 2026 · 189,915 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
Bunny Image Optimizer 9%
862.0s
9970ms
760.10
811.6s
621.1s
Akamai Image Manager 3.8%
872.0s
9969ms
780.09
841.5s
621.1s
Fastly Image Optimizer 0.6%
822.1s
9986ms
710.12
801.6s
631.2s
imgix 0.4%
921.9s
9782ms
790.08
901.3s
77747ms
Cloudinary 0.3%
802.4s
9794ms
740.11
791.7s
631.1s
Thumbor 0.1%
822.2s
9581ms
630.17
841.5s
70860ms
Uploadcare 0%
932.0s
9795ms
840.08
931.3s
84581ms
ImageKit 0%
692.8s
9791ms
800.07
731.8s
541.2s
Sirv 0%
802.4s
9681ms
400.26
702.0s
361.4s
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.
Bunny Image Optimizer leads on INP: 99% of its sites pass. Thumbor trails at 95%. computed
The State of Web Vitals · Q2 2026 · 189,915 sites · desktop field datacorewebvitals.io/state-of-cwv
Related signals
Search (5) →
Font services (4) →
Personalization (5) →
CDN (15) →
Chrome field data from 189,915 sites, representing millions of real page loads · How we measured
Chrome field data from 189,915 sites, representing millions of real page loads. How we measured.