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Changelog

Notable changes to Web Vitals Explorer. We log methodology shifts, new pages, schema improvements, and dataset expansions here so anyone citing the site can verify what changed and when.

  1. Schema saturation + glossary + JSON catalog

    • New /glossary page with stable per-term anchor IDs (deep-link to any Core Web Vital definition)
    • New /methodology page documenting data lineage, refresh cadence, and rating thresholds
    • New /api/guides JSON catalog + per-guide JSON twin endpoints (machine-readable concept canon)
    • New guides: "What is a good Core Web Vitals score?", "CrUX vs PageSpeed Insights", "How often does CrUX update?", "Third-party scripts and Core Web Vitals", "Fonts and CLS"
    • Industry coverage expanded 60 → 120 popular domains (staged for re-seed)
    • Article schema enriched with wordCount + timeRequired
    • WebApplication schema on home page
    • GitHub-style anchor IDs on every guide heading
    • Reading-time + word-count badges on guide pages
    • Better 404 with suggested domains, industries, guides
    • Preconnect hints for Plausible, Clarity, AdSense
    • Thin-content noindex guard on no-data domain pages
    • New link-audit tooling: npm run check-links

  2. Launch

    • Site live at webvitalstool.com
    • 60 seed domains across 6 industries (SaaS, e-commerce, news, finance, dev tools, AI)
    • 15 guides covering the Core Web Vitals concept canon
    • Mobile + desktop + combined views with 30-day history
    • Free JSON API at /api/[domain]
    • Foundation: robots.txt with 23 AI-crawler allowlist, llms.txt manifest, IndexNow auto-ping per deploy
    • Schema saturation: Organization, WebSite, Article, Dataset, BreadcrumbList, Person, DefinedTermSet, FAQPage, HowTo
    • Day-1 analytics stack: Plausible, Microsoft Clarity, Cloudflare Web Analytics

For deeper change history (per-commit), see the public GitLab commit log. For methodology decisions in full, see Methodology.