Check Gzip Compression


GZIP COMPRESSION TEST FAQ

This test will check whether your website(and ultimately the server you are hosted on) has gzip enabled by connecting to your domain and requesting the necessary information. Next to that it will also give you some additional information like the size of the original version of the web page you tested and how much you (may) benefit from using gzip compression.

Gzip compression makes it possible to compress your web files (mainly HTML, CSS, and JS files), sometimes up to 70%-80%. This much smaller compressed version of the file is then sent to the browser of the visitor instead of the larger original file. The browser of your visitor will then automatically decompress the compressed file and serve the uncompressed original file to your visitor.

The Gzipped file is much smaller in size (in bytes) as your original web file. The browser of your visitor will need less time to load your website because it only needs to download much smaller files.

Go here for a detailed guide how to enable gzip and for more information about gzip in general.

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MORE PAGE SPEED TOOLS

Website Speed Test

Test and analyze the loading times of your website.

CSS Compressor

Minimize CSS scripts and files for page speed.

Caching Test

Check how and whether your website files are cached.

GZIP Compression Test

Check whether your web pages have Gzip compression enabled.

Javascript Compressor

Minify your JS files and scripts to maximize performance.

Image Optimization Test

Tests your image delivery so you can improve it.

PNG Compressor

Reduce your PNG image filesize while keeping quality.

JPEG Compressor

Play with the quality and size of JPEGs to save disk space.

CSS Sprites Generator

Place multiple images in one image to make fewer requests.

CSS Optimization Test

Analyze your CSS to make improvements to the CSS Delivery.

Javascript Optimization Test

Analyzes the Javascript delivery of your web pages.

Broken Links/Requests Test

Test your web pages for broken links and requests.

HTTP Requests Checker

How many HTTP requests do your web pages produce?

B
Base64 Encoder

Encode JPEG and other files into a Base64 string.

Keep-Alive Checker

Check whether your website has keep-alive settings as enabled.

HTTP Header Checker

Check the HTTP server header of your site.