Server response
HTTP status, validated DNS resolution, connection timing, TLS handshake, TTFB and downloaded HTML size.
Server response and HTML diagnostics
Website Speed and Structure Audit
Review response timing, document structure and essential technical SEO signals from one server-side HTML fetch.
Public websites only HTML analysis Live response timing
Audit a Public Webpage
Understand the scope
What this website audit measures
Document structure
Headings, links, images, scripts, stylesheets and alternative-text coverage in the returned HTML.
Technical SEO signals
Title, description, canonical, robots, viewport, language, Open Graph and structured-data presence.
Not a Core Web Vitals test
This tool does not execute JavaScript or render the page. Use Google PageSpeed Insights for lab-based LCP, INP and CLS analysis.
Website audit questions
Is this the same as a browser performance test?
No. This server-side audit measures the initial HTML response and document structure. It does not execute the full page or calculate browser Core Web Vitals.
What is TTFB?
Time to First Byte measures how long the audit server waits before receiving the first response byte. Hosting, application processing, caching and geographic distance can affect it.
Why does the downloaded size differ from my browser?
The tool measures the fetched HTML response, not every image, font, stylesheet and script subsequently loaded by a browser.
Does a high audit score guarantee good SEO?
No. The score covers selected technical signals only. Content quality, backlinks, crawlability, user experience and search intent still matter.
Can private or local websites be audited?
No. Private, local and reserved network destinations are blocked to protect internal infrastructure.