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Website Health Checker

One-click website check for SSL, robots.txt, sitemap, OpenGraph, compression, and CSP headers.

Health Check Domain: example.com

Website Health Score: 95/100

Evaluated across SSL, Robots.txt, Sitemap, OpenGraph, Compression, & Security Headers.

A+
security Pass

SSL / HTTPS Encryption

Valid TLS 1.3 certificate active over HTTPS.

seo Pass

Robots.txt Availability

robots.txt is accessible and contains crawl directives.

seo Pass

XML Sitemap

sitemap.xml is referenced and correctly structured.

seo Pass

Favicon & Icons

Favicon and apple-touch-icon detected.

seo Pass

OpenGraph Metadata

og:title, og:description, and og:image tags are present.

performance Pass

Gzip / Brotli Compression

Brotli/Gzip text compression enabled for assets.

performance Pass

HTTP/2 & HTTP/3 Protocol

HTTP/2 multiplexing active on edge network.

security Warning

Content Security Policy (CSP)

CSP header is missing or in report-only mode.

Tip: Add Content-Security-Policy headers to prevent XSS attacks.

What is Website Health Checker?

Website Health Checker is a web diagnostic tool designed to test domain performance, security headers, and SEO setup in a single click. It analyzes critical website health indicators including SSL/TLS certificate configuration, robots.txt directives, sitemap.xml validity, favicon icons, OpenGraph metadata, Gzip/Brotli compression, HTTP/2/3 protocol support, and Content Security Policy (CSP) security headers.

How to Use Website Health Checker

  1. Enter the website URL or domain name (e.g. example.com).
  2. Click Run Health Check to evaluate core web standards and infrastructure checks.
  3. Review your overall health score, grade, and itemized security, SEO, and performance recommendations.

Examples

Check a healthy HTTPS site

Input: URL: https://myblog.com

Output: Health Score 92/100 | Grade A | SSL: Pass | Robots: Pass | CSP: Warning

Flag an insecure HTTP-only site

Input: URL: http://insecure-site.org

Output: Health Score 45/100 | Grade F | SSL: Fail (HTTP only)

Common Mistakes

  • Serving assets over unencrypted HTTP links on an HTTPS site, causing mixed content warnings.
  • Blocking critical CSS or JS resources in robots.txt, preventing Googlebot from rendering pages accurately.
  • Missing open-graph social image tags, resulting in blank previews when shared on messaging platforms.

Why Use This Tool

  • Unified score covering SSL, SEO tags, performance compression, and security headers.
  • Actionable recommendations with fix guidelines.
  • Fast client-side interface requiring no login or software download.

Frequently Asked Questions

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