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Performance

GZIP Test Tool

Check if your webpage uses GZIP compression.

GZIP Test Tool

About this tool

Verify if your web server uses GZIP or other compression algorithms to reduce transfer sizes. GZIP compression can reduce page size by 70-90%, significantly improving load times.

No signup, no catch

What the free tools actually do

Seven of them run in the browser and ask for nothing. The eighth asks for a domain and an email, because it has to send you a report.

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    Prompt research, free. A sample of the ideas the paid research page ranks.

  • A crawler that only reads. It fetches your pages the way an AI crawler would and never writes.

  • Generators
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    Copy-paste output. llms.txt and schema markup you can paste straight into the page.

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    Use it in the pitch. Screenshot it, export it. White-label and weekly is the paid plan.

Everything you're wondering

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What is GZIP compression?

GZIP is a file compression method that reduces the size of HTML, CSS, and JavaScript files sent from your server to the browser. It can reduce transfer sizes by 70-90%, dramatically improving page load speed.

How do I enable GZIP compression?

Enable GZIP in your web server configuration. In Apache, use mod_deflate; in Nginx, add gzip on; to your config. Most hosting providers and CDNs enable GZIP by default.