DIY builder market share (W3Techs / BuiltWith) — Wix ~4.3% all sites, ~45% of "simple builders"; Squarespace ~2.5% / ~17–18%

Claim: Early-2026 figures: W3Techs places Wix at ~4.3% and Squarespace at ~2.5% of all websites. BuiltWith's "simple builder" segment gives Wix ~45% and Squarespace ~17–18%.

Source: W3Techs; BuiltWith; aggregator citations.

Confidence: Industry-consensus.

Caveat: These are adoption figures, NOT effectiveness evidence. The "X million businesses use Y" framing must never be laundered into "Y works for X million businesses." Adoption ≠ working ≠ producing outcomes.

Why this matters for Candid: Useful when sizing the category, dangerous when used as evidence of effectiveness. Cite only in framing, never in support of a working-as-intended claim. See R2 — Treat every vendor retention number as survivor-only and quarantine it for the related editorial discipline.