The State of Web Vitals

TTFB distribution Wix sites

How TTFB is distributed across real-user data, plus pass-rate breakdown.

Field data PhoneDesktopAll Scope All sites October 2026 edition · Desktop field outcomes · Wix sites only
Wix Scoped to 5,623 sites out of 203,892 analyzed (cms) Compare with all sites →
1

At a glance the headline numbers for TTFB distribution

How TTFB is distributed across real-user data, plus pass-rate breakdown.

71.8%
of sites good on TTFB
382ms
Typical site
1.8s
Worst 10% of sites

71.8% of sites good on TTFB. The typical site's TTFB is 382ms. The worst 10% are above 1.8s.

The State of Web Vitals · October 2026 · Wix sites (5,623) · desktop field datacorewebvitals.io/state-of-cwv
2

The TTFB distribution site count at each TTFB, from good to poor

0 43 86 129 172
0–150ms10 sites2% of all sites
150–300ms172 sites34.1% of all sites
300–450ms98 sites19.4% of all sites
450–600ms43 sites8.5% of all sites
600–750ms29 sites5.8% of all sites
750–900ms22 sites4.4% of all sites
900–1050ms17 sites3.4% of all sites
1050–1200ms13 sites2.6% of all sites
1200–1350ms9 sites1.8% of all sites
1350–1500ms14 sites2.8% of all sites
1500–1650ms14 sites2.8% of all sites
1650–1800ms9 sites1.8% of all sites
1800–1950ms10 sites2% of all sites
1950–2100ms9 sites1.8% of all sites
2100–2250ms5 sites1% of all sites
2250–2400ms10 sites2% of all sites
2400ms and up20 sites4% of all sites
p50 = 382ms
p75 = 932ms
p90 = 1.8s
p99 = 2.9s
0–150 150–300 300–450 450–600 600–750 750–900 900–1050 1050–1200 1200–1350 1350–1500 1500–1650 1650–1800 1800–1950 1950–2100 2100–2250 2250–2400 2400+
Good (≤800ms) Needs improvement Poor (>1.8s) Percentile markers Total: 504 sites

Most sites are good on TTFB. 71.8% sit at or under 800ms. The typical site is at 382ms, and 75% of sites stay under 932ms. Only 28.2% miss good TTFB. The slowest 10% are above 1.8s, and the slowest 1% are above 2.9s.

The State of Web Vitals · October 2026 · Wix sites (5,623) · desktop field datacorewebvitals.io/state-of-cwv
3

The TTFB pass rate the share of sites that are good, needs improvement and poor

TTFB
71.8%
17.5%
10.7%
Good Needs Improvement Poor

71.8% of sites are good on TTFB. 17.5% are in the needs improvement band, between 800ms and 1.8s. 10.7% are poor, above 1.8s. Misses split about evenly between the two.

The State of Web Vitals · October 2026 · Wix sites (5,623) · desktop field datacorewebvitals.io/state-of-cwv
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