Website Audit
Full browser-based audit covering performance, SEO, security and accessibility.
Full browser audit using Chromium. May take up to 30 seconds.
Analysing website...
Running full browser audit — this may take up to 30 seconds
Overall Grade
Loaded in
Load Time
Total Requests
Page Size
DOM Size
Inline Styles
Inline Scripts
Fonts
Images
Fonts Used
Code Coverage
| URL | Type | Size |
|---|---|---|
| URL | Type | Size | Time |
|---|---|---|---|
Total Links
Internal
External
Broken Anchors
Title Tag
characters
No title tag found
Meta Description
characters
No meta description found
Heading Structure
H1
H2
H3
Total
H1:
Open Graph Tags
Twitter Cards
Structured Data
schema(s):
robots.txt
sitemap.xml
Canonical URL
Viewport Meta
Language Attribute
SSL Certificate
Security Headers
Compression
Language attribute on <html>
Image Alt Text
Form Labels
Heading Order
Skip Navigation Link
ARIA Landmarks
| URL | Type | Size | Time |
|---|---|---|---|
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Learn More About Website Auditing
What is a Website Audit?
A website audit uses a real headless browser (Chromium) to load your page and capture detailed performance metrics. Unlike API-based tools that estimate performance, this tool actually renders your page in a full browser environment, measuring exactly what your visitors experience.
Core Web Vitals Explained
- LCP (Largest Contentful Paint) — Time until the largest content element is visible. Good: under 2.5 seconds.
- FCP (First Contentful Paint) — Time until the first text or image is rendered. Good: under 1.8 seconds.
- CLS (Cumulative Layout Shift) — Visual stability score. Elements shifting during load is penalised. Good: under 0.1.
- TTFB (Time to First Byte) — Server response time. Good: under 200ms.
- DOM Complete — Time until the entire DOM is fully loaded and parsed.
SEO Factors
The SEO score evaluates on-page signals including title tag presence and length, meta description, heading hierarchy (H1-H6), Open Graph tags for social sharing, Twitter Cards, structured data (Schema.org), robots.txt, sitemap.xml, canonical URLs, and viewport configuration. These are the fundamental building blocks that search engines use to understand and rank your content.
Security Headers
Modern websites should implement several security headers to protect visitors. HSTS enforces HTTPS connections, Content-Security-Policy prevents XSS attacks, X-Frame-Options blocks clickjacking, and Referrer-Policy controls what information is sent with outbound links. A missing header does not necessarily mean a vulnerability, but implementing them demonstrates security best practice.
Performance Grading
The overall grade (A through F) is calculated from a combination of Web Vitals scores, total page size, number of requests, and load time. An A grade indicates excellent performance, while an F grade means significant optimisation is needed.
Request Waterfall
The waterfall shows every resource your page loads, in order. Each entry includes the URL, resource type (document, script, stylesheet, image, etc.), HTTP status code, size, and load time. Use this to identify slow or unnecessary requests that could be optimised, deferred, or removed.