1
At a glance the headline numbers for Image CDNs impact
Performance impact by image_cdn provider.
4
Providers ranked
After min-sites filter
2,207
Sites in sample
Combined across all items
0.06
Best CLS (p75)
Akamai Image Manager
The State of Web Vitals · October 2026 · Shopify sites (8,248) · desktop field datacorewebvitals.io/state-of-cwv
2
The ranking sorted by CLS at p75, fastest first
| # | Provider | CLS p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | Akamai Image Manager | 0.06 | 84.2% | 262 | |
| 2 | Uploadcare | 0.07 | 88.6% | 64 | |
| 3 | Imgix | 0.07 | 83.1% | 312 | |
| 4 | Bunny Image Optimizer | 0.08 | 81.0% | 1,569 |
The State of Web Vitals · October 2026 · Shopify sites (8,248) · desktop field datacorewebvitals.io/state-of-cwv
3
Passing CLS per provider which group passes the CLS most often
ProviderSitesPassing CLSp75
Cloudinary 0.1% 11 0.04
Uploadcare 0.8% 64 0.07
Akamai Image Manager 3.2% 262 0.06
imgix 3.8% 312 0.07
Bunny Image Optimizer 19% 1,569 0.08
Thumbor 0.1% 7 0.19
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
No provider stands out: pass rates sit between 81% and 84%. computed
The State of Web Vitals · October 2026 · Shopify sites (8,248) · 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 19%
971.7s
9984ms
810.08
961.1s
97486ms
imgix 3.8%
1001.6s
10085ms
830.07
971.1s
98506ms
Akamai Image Manager 3.2%
981.7s
9983ms
840.06
981.1s
96458ms
Uploadcare 0.8%
912.2s
9795ms
890.07
941.2s
87551ms
Cloudinary 0.1%
1002.0s
10091ms
1000.04
1001.4s
83505ms
Thumbor 0.1%
1001.4s
10075ms
500.19
1001.1s
100336ms
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.
Akamai Image Manager leads on CLS: 84% of its sites pass. Bunny Image Optimizer trails at 81%. computed
The State of Web Vitals · October 2026 · Shopify sites (8,248) · desktop field datacorewebvitals.io/state-of-cwv
Related signals Search (6) → Font services (4) → Personalization (6) → CDN (16) → 203,892 crawled sites with Chrome field data, representing millions of real page loads · How we measured
203,892 crawled sites with Chrome field data, representing millions of real page loads. How we measured.