The State of Web Vitals

Image CDNs impact Wix sites

Performance impact by image_cdn provider.

Field data PhoneDesktopAll Scope All sites October 2026 edition · All devices field outcomes · Wix sites only
Metric LCP INP CLS
Wix Scoped to 5,623 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.

1
Providers ranked
After min-sites filter
92
Sites in sample
Combined across all items
95ms
Best INP (p75)
Bunny Image Optimizer
The State of Web Vitals · October 2026 · Wix sites (5,623) · all devices field datacorewebvitals.io/state-of-cwv
2

The ranking sorted by INP at p75, fastest first

# Provider INP p75 Passing Sites
1 Bunny Image Optimizer 95ms 95.1%
92
The State of Web Vitals · October 2026 · Wix sites (5,623) · all devices field datacorewebvitals.io/state-of-cwv
3

Passing INP per provider which group passes the INP most often

ProviderSitesPassing INPp75
Akamai Image Manager 0.3% 18 100% 104ms
Fastly Image Optimizer 0.1% 5 100% 87ms
Bunny Image Optimizer 1.6% 92 95% 95ms
Good Needs Improvement Poor Sorted best-passing first · median colored by its own rating · pass = good INP (200ms at p75) · one value per site
The State of Web Vitals · October 2026 · Wix sites (5,623) · all devices 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%
802.3s
9595ms
1000.01
771.8s
601.4s
Akamai Image Manager 0.3%
1001.3s
100104ms
1000.00
941.1s
80649ms
Fastly Image Optimizer 0.1%
802.1s
10087ms
1000.01
602.1s
601.4s
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.

The State of Web Vitals · October 2026 · Wix sites (5,623) · all devices 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