Speed performance
Script parsing time and payload size can be reduced by minifying JavaScript files. SeoChecker shows in a table like the one below the JavaScript files of a web page that have not been minified; at the same time, it provides data on their size and on the potential savings in KiB (kibibytes) that minification would entail:
Minification is a process that aims to make code shorter: for example, unnecessary lines of code are made shorter but still valid, and whitespace is removed. Among the most widely used JavaScript compression tools is Terser, and in webpack v4 a plugin for this library is included by default to create minified build files.
Learn more about Speed performance
On page SEO performance and page checkup.
Over 300 parameters for the deeper page analysis.
Share this Guide
Did you like it? Share it!
Web tools for modern developers. Try these one!
Over 50 generators, builders and validators to improve your SEO and web performances
Builders and generators
Generate beautiful color palette combinations for your designs. Get your combination scheme: analogous, triadic, complementary and so on.
Tester and validators
Find out which theme, version, author and license a WordPress site is using trought Wordpress Theme detector tool
Server and proxy Tester and validators
Perform your site audit and find out what pages missing https/ssl certificate.
Generate structured data in json-ld and improve your SEO. Enhance your appearance in Google Search with rich snippet result.
Converters
Convert instantly color codes from RGB (red, green, blue) to HEX triplets color schema and vice versa. Insert color and try it for free.
Builders and generators Google
Choose a map theme or build your custom Google map. Customize maps with your own creativity, settings, styles and colors.
Google
Find out how Google calculates your overall Performance score. Drag the cursors to understand what thresholds you must be aiming for achieving a good performance
Analyze your web page speed performance. Retrieve information about speed index, latency, first contentful paint and more.