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 · All devices 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.

81.4%
of sites good on TTFB
421ms
Typical site
1.3s
Worst 10% of sites

81.4% of sites good on TTFB. The typical site's TTFB is 421ms. The worst 10% are above 1.3s.

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

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

0 454 908 1,362 1,816
0–150ms4 sites0.1% of all sites
150–300ms921 sites18.4% of all sites
300–450ms1,816 sites36.2% of all sites
450–600ms816 sites16.3% of all sites
600–750ms430 sites8.6% of all sites
750–900ms220 sites4.4% of all sites
900–1050ms159 sites3.2% of all sites
1050–1200ms111 sites2.2% of all sites
1200–1350ms81 sites1.6% of all sites
1350–1500ms96 sites1.9% of all sites
1500–1650ms67 sites1.3% of all sites
1650–1800ms61 sites1.2% of all sites
1800–1950ms60 sites1.2% of all sites
1950–2100ms58 sites1.2% of all sites
2100–2250ms32 sites0.6% of all sites
2250–2400ms30 sites0.6% of all sites
2400ms and up52 sites1% of all sites
p50 = 421ms
p75 = 658ms
p90 = 1.3s
p99 = 2.4s
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: 5,014 sites

Most sites are good on TTFB. 81.4% sit at or under 800ms. The typical site is at 421ms, and 75% of sites stay under 658ms. Only 18.6% miss good TTFB. The slowest 10% are above 1.3s, and the slowest 1% are above 2.4s.

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

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

TTFB
81.4%
14%
4.6%
Good Needs Improvement Poor

81.4% of sites are good on TTFB. 14.0% are in the needs improvement band, between 800ms and 1.8s. 4.6% are poor, above 1.8s. A miss is usually needs improvement, not poor.

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