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JavaScript is a lightweight, object-oriented, cross-platform scripting language, often used within web pages.

The Apache HTTP Server is an open source web server by the Apache Software Foundation.

Atman is a Polish web hosting provider owned by ATM S.A.

Atman is a Polish web hosting provider owned by ATM S.A.

Let’s Encrypt is a free, automated, and open certificate authority provided by the Internet Security Research Group.

Embedded Cascading Style Sheets define a set of style rules in a <style> element within a web page.

Gzip (GNU zip) is a file compression algorithm.

A strong ETag is an HTTP header field for validation of cached web pages, that indicates a byte-for-byte identical page in the cache.

HTTP/2 is the second major version of the HTTP network protocol.

Transitional version of HTML.

ISO-8859-2 (informally also called Latin-2) is an 8-bit character set for Eastern European languages that are written in the Latin script.

JPEG (Joint Photographic Experts Group) is a lossy compression method suitable to store photographic images.

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