Image CDNs impact Shopify sites

Performance impact by image_cdn provider.

Field data PhoneDesktopAll Scope All sites October 2026 edition · Desktop field outcomes · Shopify sites only
Metric LCP INP CLS
Shopify Scoped to 8,248 sites out of 203,892 analyzed (cms) Compare with all sites →
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
1.6s
Best LCP (p75)
Imgix
The State of Web Vitals · October 2026 · Shopify sites (8,248) · desktop field datacorewebvitals.io/state-of-cwv
2

The ranking sorted by LCP at p75, fastest first

# Provider LCP p75 Passing Sites
1 Imgix 1.6s 100.0%
312
2 Akamai Image Manager 1.7s 98.4%
262
3 Bunny Image Optimizer 1.7s 96.8%
1,569
4 Uploadcare 2.2s 91.2%
64
The State of Web Vitals · October 2026 · Shopify sites (8,248) · desktop field datacorewebvitals.io/state-of-cwv
3

Passing LCP per provider which group passes the LCP most often

ProviderSitesPassing LCPp75
imgix 3.8% 312 100% 1.6s
Cloudinary 0.1% 11 100% 2.0s
Thumbor 0.1% 7 100% 1.4s
Akamai Image Manager 3.2% 262 98% 1.7s
Bunny Image Optimizer 19% 1,569 97% 1.7s
Uploadcare 0.8% 64 91% 2.2s
Good Needs Improvement Poor Sorted best-passing first · median colored by its own rating · pass = good LCP (2.5s at p75) · one value per site

No provider stands out: pass rates sit between 97% and 100%. 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.

imgix leads on LCP: 100% of its sites pass. Bunny Image Optimizer trails at 97%. 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