Reference entries (43)
- referenceNext.js suffered a 10 percentage-point CWV drop when FID was replaced by INP (March 2024) — "modern stack" is not synonymous with "fast"
- referenceManaged WordPress host TTFB benchmarks (HostingStep 2025, 34 hosts, 1,960+ days of 24/7 monitoring)
- referenceA well-optimized WordPress + Gutenberg + Kadence/GeneratePress site on managed hosting can plausibly match an Astro-on-Cloudflare site in CWV
- referenceWordPress CWV gap causal decomposition (May 2026): ~40-50% hosting/TTFB, ~20-30% page builders, ~15-20% plugins, ~5-10% core, ~5-10% theme
- referenceThe Economic Times (2021): LCP 4.5s→2.5s, CLS 0.25→0.09 → -43% bounce site-wide
- referenceRenault (2021): 1s LCP improvement → -14 ppt bounce rate, +13% conversions (regression analysis, multi-month, millions of sessions)
- referenceredBus (2023): INP improved ~72% on search page → +7% sales (6-7.2% CR uplift across operating countries)
- referenceRakuten 24 (2022 A/B test): CWV optimization → +33.13% conversion rate, +53.37% revenue per visitor, -35.12% exit rate
- referenceSpeculation Rules with eagerness:"moderate" is the 2026 default for instant navigation; ~82% LCP improvement in CoreDash field data
- referenceResearch brief: WordPress + Page Builders vs Modern Custom Stacks — sourced performance comparison (piece 18)
- referenceResearch brief: Website Performance & Revenue — defensible evidence for KW small-business owners (piece 17)
- referenceWordPress median mobile JS payload is 528 KB — smaller than Wix (1,462 KB) and Squarespace (1,314 KB), yet WordPress performs worse in the field
- referencePlatform mobile CWV pass rates, November 2025 CrUX Tech Report (SEJ analysis, Dec 2025)
- referenceCore Web Vitals is a tiebreaker-class Google ranking factor, not a heavy lever — independent studies (Perficient, AWR, Backlinko) corroborate
- referenceAstro on Cloudflare Pages: ~$0/month vs Next.js SSR ~$20-200/month (Bobes 2026 benchmark)
- referenceWPPoland: Elementor → Gutenberg rebuilds yield ~40% mobile site speed increase (multi-client benchmark)
- referenceAnubiz Host: Elementor adds 500KB+ of CSS/JS to every page; simple pages can have 2000+ DOM elements
- referenceElementor own admission: Flexbox Containers ship 40% less HTML output than sections/columns
- referenceWeb Almanac 2024: WordPress mobile CWV pass rate jumped 28% (2023) → 40% (2024); median mobile Lighthouse Perf 38
- referenceGoogle WebP Compression Study: WebP is 25-34% smaller than JPEG at equivalent SSIM (avg ~30%)
- referenceReference: 2026 performance budget — SMB marketing site (Candid default targets)
- referenceReference: the 5 most common CLS killers — and the fixes
- referenceReference: the 8 most common INP killers — ranked by observed frequency
- referenceReference: the 8 most common LCP killers — ranked by observed frequency
- referenceDan Taylor (SE Land, Jan 13 2026, n=107,352): CWV is a gate for AI citation, not a growth lever
- referenceChrome Aurora team: Google Tag Manager with 18 tags increases Total Blocking Time ~20×
- referenceAstro vs Next.js (eastondev benchmark, Dec 2025): ~40% faster, ~90% less JS for static content
- referenceBBC: lost 10% of users for every additional second the site took to load
- referenceWalmart (2012, foundational): 100ms improvement = 1% incremental revenue; 1s improvement = 2% conversion increase
- referencePinterest PWA rebuild (2017, foundational): 60% faster → +40% conversions, +40% time spent, +44% ad revenue
- referenceDeloitte/Google "Milliseconds Make Millions" (2020): 0.1s improvement → 8.4% retail conversion lift, 10.1% travel
- referenceVodafone A/B test (2021): 31% LCP improvement → 8% more sales, 15% better lead-rate, 11% better cart-rate
- referenceWeb Almanac 2025: median mobile page weight crossed 2,559 KB in July 2025 (+7.8% YoY)
- referenceWeb Almanac 2025: 48% mobile / 56% desktop origins pass all 3 CWV; LCP is the bottleneck
- referenceREFUTED: "March 2026 LCP tightened to 2.0s / INP elevated" — no such Google announcement exists
- reference2026 CWV thresholds (confirmed unchanged): LCP ≤ 2.5s, INP ≤ 200ms, CLS ≤ 0.1 at p75 field data
- referenceResearch brief: Page Speed as a Moat — why CWV separates the agencies from the freelancers (piece 9 of 15)
- referenceGDS: GOV.UK Design System pages download 2x faster than non-system pages with half the code
- referenceWeb Almanac 2024: median desktop page weight — WordPress 2,252 KB, Wix 2,560, Squarespace 3,323; 90th pct crosses 8 MB
- referenceINP officially replaced FID as a Core Web Vital on March 12, 2024
- referenceElementor sites show pre-optimization median mobile LCP of 3.8–5.2s — well above Google's 2.5s threshold
- referenceAI crawlers (GPTBot, ClaudeBot, PerplexityBot) generally do not execute JavaScript — client-side React/Vue without SSR is invisible
- referenceResearch brief: What makes a marketing site do something (piece on brochure vs platform)
