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
Analytics Google Tracking script
Generate URLs for Google Play Campaign Measurement. Add Google Analytics Campaigns parameters to Google Play Urls - Android SDK.
Builders and generators Social
Transform web pages in rich objects in a social graph. 25 Open Graph type to create a huge impact of social traffic on your website.
Generate Twitter cards markup and improve yours html meta. Attach rich photos, videos and media experiences to Tweets and drive traffic to your site.
Builders and generators
Generate structured data in json-ld and improve your SEO. Enhance your appearance in Google Search with rich snippet result.
Tester and validators
Validate your Css file sheet with W3C validation Service. Check if the markup of your Cascading style Sheet document is W3C compliant.
Generate beautiful color palette combinations for your designs. Get your combination scheme: analogous, triadic, complementary and so on.
Images Social
Get YouTube video thumbnails and info dataset. Retrieve YouTube video image in 9 different sizes, quality, caption, description and more.
Build your Service Workers and enrich user experience. Transform your website in a huge Progressive Web App and enrich users experience.