GZIP Compression Checker
Check if gzip/brotli compression is enabled on your website pages and view best-effort size savings.
About This Tool
The GZIP Checker helps you verify whether your website has GZIP compression enabled. GZIP reduces the size of HTML, CSS, and JavaScript files before they are sent to the browser, making your website load faster.
It’s perfect for developers, website owners, SEO experts, and hosting administrators who want to improve performance and Core Web Vitals.
With this tool, you can:
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Check if GZIP compression is enabled
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Detect content-encoding headers
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Measure compressed vs uncompressed size
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Improve website loading speed
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Optimize server performance
How It Works
1️⃣ Enter Website URL
Paste the full URL of the page you want to check.
2️⃣ Analyze HTTP Headers
The tool scans the server response headers.
3️⃣ Check Content-Encoding
It looks for:
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Content-Encoding: gzip -
Compressed file delivery
4️⃣ View Results
You’ll see whether:
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✅ GZIP is enabled
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❌ GZIP is not enabled
If disabled, you can enable it via server configuration.
Still Have Questions?
GZIP is a file compression method that reduces the size of web files before sending them to a browser.
Yes. Faster loading websites improve user experience and can positively impact search rankings.
You can enable GZIP via:
Apache
.htaccessNginx configuration
Hosting control panel
Performance plugins
Both are compression methods. Brotli usually offers better compression rates, but GZIP is more widely supported.