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 · Phone 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.

85.7%
of sites good on TTFB
401ms
Typical site
1.0s
Worst 10% of sites

85.7% of sites good on TTFB. The typical site's TTFB is 401ms. The worst 10% are above 1.0s.

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

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

0 292 585 877 1,169
0–150ms2 sites0.1% of all sites
150–300ms573 sites19.7% of all sites
300–450ms1,169 sites40.1% of all sites
450–600ms476 sites16.3% of all sites
600–750ms228 sites7.8% of all sites
750–900ms111 sites3.8% of all sites
900–1050ms70 sites2.4% of all sites
1050–1200ms55 sites1.9% of all sites
1200–1350ms36 sites1.2% of all sites
1350–1500ms36 sites1.2% of all sites
1500–1650ms28 sites1% of all sites
1650–1800ms26 sites0.9% of all sites
1800–1950ms26 sites0.9% of all sites
1950–2100ms23 sites0.8% of all sites
2100–2250ms18 sites0.6% of all sites
2250–2400ms13 sites0.4% of all sites
2400ms and up22 sites0.8% of all sites
p50 = 401ms
p75 = 586ms
p90 = 1s
p99 = 2.3s
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: 2,912 sites

Most sites are good on TTFB. 85.7% sit at or under 800ms. The typical site is at 401ms, and 75% of sites stay under 586ms. Only 14.3% miss good TTFB. The slowest 10% are above 1.0s, and the slowest 1% are above 2.3s.

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

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

TTFB
85.7%
10.8%
3.5%
Good Needs Improvement Poor

85.7% of sites are good on TTFB. 10.8% are in the needs improvement band, between 800ms and 1.8s. 3.5% are poor, above 1.8s. A miss is usually needs improvement, not poor.

The State of Web Vitals · October 2026 · Wix sites (5,623) · phone field datacorewebvitals.io/state-of-cwv
Related signals FCP → LCP → CLS → INP → 203,892 crawled sites with Chrome field data, representing millions of real page loads · How we measured