Web Quality Index

A public registry of website quality.

In a world where people bank, learn, and seek care through a browser; where AI agents read and act on what they find; and where a single overlooked detail can leak someone’s data or lock them out entirely — it’s on all of us to make sure the websites that make up the internet meet the ever-changing standards that keep it safe, fast, accessible, and trustworthy.

Web Quality Index keeps an updated knowledgebase of those broadly accepted standards, measures every public website against them through an auditable and deterministic process, and publishes the results.

Press / to look up any site.

Standards we measure

98 standards · open methodology · v1.2.0

TLS, DNS, headers, attack-surface exposure, and credential leakage — the floor every public site now needs to clear.

Real-world speed: PageSpeed, Core Web Vitals, transport efficiency, and how heavy a site is on the network.

Discoverability fundamentals — what a search engine needs to index, classify, and rank a page accurately.

What a site looks like to an AI crawler, agent, or LLM — instructions, machine-readable manifests, and structured signals.

Tracker burden, regulatory affordances, and how transparently a site treats the person on the other end.

Whether the site works for people using screen readers, keyboards, magnifiers, and high-contrast modes.

Does this site actually exist in the world? Domain age, social and business directory presence, news mentions, and the broader signal of a real operator behind the URL.

Whether a domain's mail will actually land in someone's inbox — authentication, alignment, deliverability hygiene, and whether the operator uses a real branded email at all.