WordPress mobile Core Web Vitals pass rate is ~44% — far behind Shopify (65%), Duda (83.6%), Squarespace (95.9% INP)

Claim: Search Engine Journal's June 2025 CWV Technology Report ("2025 Core Web Vitals Challenge: WordPress Versus Everyone") and corroborating sources:

• Duda: 83.63% CWV-good
• Squarespace: 95.85% INP-good (top for INP specifically)
• Shopify: 75.22% / ~65% mobile pass rate
• WordPress: 43.44% CWV-good with "no signs of positive momentum"

Sources: SEJ — https://www.searchenginejournal.com/2025-core-web-vitals-cms-rankings/552679/; corewebvitals.io — https://www.corewebvitals.io/core-web-vitals/wordpress-guide; Ben Ryan — https://benryan.com.au/blog/new-core-web-vitals-2026-changes-fix-before-march.

Confidence: Verified.

For context: HTTP Archive Web Almanac 2025 reports 48% of all mobile origins pass CWV. WordPress sits materially below that median. The brochure-vs-database CWV gap is real and measurable at the platform level.