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W tym artykule dowiesz się jak przyspieszyć stronę internetową poprzez wyeliminowanie zasobów blokujących renderowanie oraz poznasz narzędzia niezbędne do lokalizacji krytycznego i niekrytycznego kodu JavaScript i CSS. Podczas przetwarzania kodu…

Modern website should be rated well by both users and Google robots. For WordPress, this rating is heavily influenced by the theme chosen by the owner of the page - how to choose the best one, I will explain it...

Almost every website on the Internet uses custom fonts. Unfortunately, only a few of them load it in a proper way. By reading this article you will learn how does internet fonts work and how important is their influence...

Heartbeat API was introduced to WordPress back in 2013. The word heartbeat - the beating of the heart - was included here for a reason. It allows to keep the user's browser communicating with the server by sending requests every set amount of time. This is used...

For analysing website performance, I always recommend two tools. The first one is PageSpeed Insights designed by Google developers. It is based on Lighthouse which is often used by other tools for measuring website quality. GTmetrix is another very popular tool also based on Lighthouse software. Although both tools use the same...

Cache memory is used to store already processed data and deliver it to users again each time it is needed. In this way, the user does not have to wait again for a response from the server to receive a web page, instead the site will be directly delivered to them from the...

Text compression reduces the download time of a website by delivering compressed files to your website users. The server compresses the files before sending them, which significantly reduces their size. The compressed data reaches the browsers of visitors to your website and is then...

Third party code is any script hosted on a domain other than yours. A badly attached third-party script can lock up your website thread for some time, significantly delaying the loading of your website. In this article...

Minification of JS, CSS, HTML files is probably one of the most popular methods of website optimisation. It is used to reduce file size by reducing the number of characters, deleting unnecessary and removing comments. File minification will reduce file transfer by...