Javascript Optimization Test


JAVASCRIPT OPTIMIZATION TEST FAQ

This test checks whether your web page..

  • loads internal and external Javascript files and whether these files are minified or not
  • contains duplicate Javascript files
  • contains inlined Javascripts and how many
  • loads JS files which could be inlined
  • loads Javascript files in the footer

By finding bottlenecks and things you could improve to speed up the delivery of Javascripts. For instance, you could use the Javascript Compressor to minify your JS files and you could defer load or inline your Javascripts.

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MORE PAGE SPEED TOOLS

CSS Optimization Test

Analyze your CSS to make improvements to the CSS Delivery.

CSS Compressor

Minimize CSS scripts and files for page speed.

Javascript Optimization Test

Analyzes the Javascript delivery of your web pages.

Javascript Compressor

Minify your JS files and scripts to maximize performance.

GZIP Compression Test

Check whether your web pages have Gzip compression enabled.

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.

Caching Test

Check how and whether your website files are cached.

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.

Line Breaks Remover

Remove line breaks from your scripts to save disk space.

HTTP Header Checker

Check the HTTP server header of your site.