1
At a glance the headline numbers for Image CDNs impact
Performance impact by image_cdn provider.
1
Providers ranked
After min-sites filter
92
Sites in sample
Combined across all items
2.2s
Best LCP (p75)
Bunny Image Optimizer
The State of Web Vitals · October 2026 · Wix sites (5,623) · phone field datacorewebvitals.io/state-of-cwv
2
The ranking sorted by LCP at p75, fastest first
| # | Provider | LCP p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | Bunny Image Optimizer | 2.2s | 85.2% | 92 |
The State of Web Vitals · October 2026 · Wix sites (5,623) · phone field datacorewebvitals.io/state-of-cwv
3
Passing LCP per provider which group passes the LCP most often
ProviderSitesPassing LCPp75
Fastly Image Optimizer 0.1% 5 1.7s
Akamai Image Manager 0.3% 18 1.9s
Bunny Image Optimizer 1.6% 92 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
The State of Web Vitals · October 2026 · Wix sites (5,623) · phone 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 1.6%
852.2s
96100ms
1000.00
801.6s
68932ms
Akamai Image Manager 0.3%
931.9s
100108ms
1000.00
861.6s
83514ms
Fastly Image Optimizer 0.1%
1001.7s
10074ms
1000.00
671.5s
100568ms
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.
The State of Web Vitals · October 2026 · Wix sites (5,623) · phone 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.