Open a case file on any website.
Paste a URL, get a forensic dossier on any website — performance, Core Web Vitals, SEO, accessibility, best-practices & security signals, no signup.
- CRITICAL Server response time (TTFB) — measured 1.4 s
- CRITICAL Largest Contentful Paint — measured 4.8 s
- CRITICAL Render-blocking resources — measured Est. 1.2 s savings
- CRITICAL No known-vulnerable libraries — measured jQuery 1.12.4 flagged
- WARN Total Blocking Time — measured 780 ms
- WARN Speed Index — measured 5.1 s
- WARN First Contentful Paint — measured 2.1 s
- WARN Text compression — measured Enable gzip/br
- WARN Unused JavaScript — measured Est. 210 KiB
- WARN CSP effective against XSS — measured No CSP found
- WARN No console errors — measured 2 errors
- WARN Meta description — measured Missing
- WARN Structured data — measured None detected
- WARN Color contrast — measured 6 low-contrast elements
- WARN Image alt text — measured 3 images missing alt
Lighthouse evaluates only a handful of security signals (HTTPS, known-vulnerable libraries, a basic CSP/XSS heuristic, console errors). It does not inspect security response headers such as HSTS, X-Frame-Options, X-Content-Type-Options, Referrer-Policy or a full Content-Security-Policy. A clean "Best Practices" score is not a security guarantee — treat this dossier as triage, then run a dedicated header/penetration scan.
Affiliate disclosure: some "FIX THIS" recommendations are affiliate links. If you sign up through one we may earn a commission, at no extra cost to you. Recommendations are triggered by issues detected in your dossier, never by payment. Full details in our affiliate disclosure.
How it reads your site
1 · Pull the lab + field record
We query Google PageSpeed Insights live from your browser. That returns a Lighthouse lab run (one throttled load) plus, when enough Chrome users exist, CrUX field data (real users, 28 days).
2 · Triage every signal
Each of the four Lighthouse categories and ~25 individual audits is graded against a fixed severity model — PASS WARN CRITICAL — never colour alone.
3 · File the dossier
Sections are sorted worst-first: Performance/CWV, asset delivery, SEO, accessibility, and best-practices & security signals — each citing the exact measured value.
4 · Prioritised remediation
A single ranked fix-list, and where an issue maps to a tool we trust we surface a matched FIX THIS → recommendation (clearly labelled affiliate, triggered by the issue, not paid).
What the severity grades mean
Full details on the methodology page, and a section-by-section walkthrough in how to read a website audit.
Questions, answered
- Is this a real audit or an estimate?
- It is real Google data. The lab scores come from a Lighthouse run performed by Google's PageSpeed Insights servers; the field metrics come from the Chrome UX Report (CrUX) — anonymised data from real Chrome users. AuditOps only formats and grades that data. We are not affiliated with Google.
- Why do the lab and field numbers disagree?
- Lab is one load on an emulated mid-tier phone with throttled network — repeatable, but artificial. Field is what real visitors actually experienced over the last 28 days across many devices and connections. When they diverge, trust the field data for "is this fast for users?" and the lab data for "what should I fix?".
- Does a clean score mean my site is secure?
- No. Lighthouse checks only a few security signals (HTTPS, known-vulnerable JS libraries, a basic CSP/XSS heuristic, console errors). It does not inspect security response headers such as HSTS, X-Frame-Options or a full Content-Security-Policy. Treat the dossier as triage, then run a dedicated security scan.
- Do you store my URL or my results?
- No. The scan runs from your browser straight to Google's API; results render locally and are never saved on our servers. Reload the page and the dossier is gone. See our privacy page.
- Why did my scan get rate-limited?
- By default we run keyless, which shares a small public Google quota. If many people scan at once you may see a "rate-limited" message — wait roughly 30 seconds and retry. An operator can add a free PageSpeed API key to raise the limit.
- What does a CASE number mean?
-
It is a stable label derived from the URL you scanned (e.g.
CASE-2026-4821) so two scans of the same site read the same. It is cosmetic — it is not stored and carries no tracking. - Is it free?
- Yes — free, no signup, no account. Some "FIX THIS" links are affiliate links that help fund the tool at no extra cost to you.