Website Audit
Run SEO, performance, and accessibility audit powered by Google Lighthouse.
Powered by Geekflare Lighthouse API
What Is a Website Audit?
A website audit is an in-depth analysis of a web page's technical health across four key dimensions: Performance, SEO, Accessibility, and Best Practices. The Geekflare Website Audit tool runs these checks using Google Lighthouse, the same engine powering Chrome DevTools and PageSpeed Insights — without requiring any browser extensions or local setup.
How to Run a Website Audit
- Enter the full URL of the page you want to audit (e.g.,
https://example.com/). - Select a device: Desktop for a broadband simulation, or Mobile for a 4G mid-tier device emulation.
- Click Run Audit — the audit typically takes 15–20 seconds.
- Review your scores across the four categories and the Core Metrics table for actionable details.
Understanding Your Scores
Each category is scored 0–100:
- 90–100 — Good. No significant issues detected.
- 50–89 — Needs Improvement. Opportunities exist to improve.
- 0–49 — Poor. Critical issues are present that need attention.
Performance
Performance measures how fast your page loads and becomes interactive for real users. It is computed from a weighted combination of Core Web Vitals and other load metrics including First Contentful Paint (FCP), Largest Contentful Paint (LCP), Total Blocking Time (TBT), Cumulative Layout Shift (CLS), and Speed Index.
SEO
The SEO score checks whether your page is structured in a way that search engines can effectively crawl and index it. It verifies meta tags, canonical URLs, robots.txt compliance, HTTP status codes, and mobile-friendliness.
Accessibility
Accessibility audits verify that your content is usable by everyone, including people using assistive technologies. Common checks include image alt attributes, ARIA roles, color contrast ratios, keyboard navigation, and form label associations.
Best Practices
Best Practices checks for modern web standards: secure HTTPS connections, correct image aspect ratios, use of deprecated APIs, and vulnerable JavaScript libraries detected at load time.
Core Web Vitals Explained
| Metric | What It Measures | Good Threshold |
|---|---|---|
| LCP — Largest Contentful Paint | Load speed of the main content | ≤ 2.5 s |
| CLS — Cumulative Layout Shift | Visual stability during load | ≤ 0.1 |
| TBT — Total Blocking Time | Main thread blocking (INP proxy) | ≤ 200 ms |
| FCP — First Contentful Paint | Time to first visible content | ≤ 1.8 s |
| TTI — Time to Interactive | Full interactivity | ≤ 3.8 s |
| Speed Index | Visual load progress | ≤ 3.4 s |
Desktop vs. Mobile Audit
Running audits on both device types is recommended. Google uses mobile-first indexing, meaning the mobile version of your page is the primary signal for search rankings. A page that scores well on Desktop may still have critical performance issues on Mobile due to JavaScript execution limits and slower network simulation.
Frequently Asked Questions
The audit typically takes 15–20 seconds to complete. Google Lighthouse runs a full page load simulation under controlled conditions, so results are consistent but take longer than a simple HTTP check.
Desktop and Mobile audits simulate different device conditions:
- Desktop uses a fast CPU and a simulated broadband connection. Mobile emulates a mid-tier Android device with a slower CPU and a 4G connection. Since Google uses mobile-first indexing, we recommend running both and prioritizing your Mobile score.
Each category is scored 0–100:
- 90–100 — Good. No significant issues.
- 50–89 — Needs improvement. Actionable opportunities exist.
- 0–49 — Poor. Critical issues are hurting performance or discoverability.
Core Web Vitals are a set of metrics Google uses as ranking signals:
- LCP (Largest Contentful Paint) — How fast the main content loads. Target: under 2.5 s.
- CLS (Cumulative Layout Shift) — Visual stability. Target: under 0.1.
- TBT (Total Blocking Time) — Proxy for responsiveness. Target: under 200 ms.