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PHP is a scripting language for creating websites.

Cloudflare Server is a web server developed by Cloudflare.

Cloudflare provides a content delivery network.

Cloudflare provides DNS servers and other web services.

Mail.Ru is a Russian provider of internet services. This includes the VK brand.

GlobalSign is an IT security service provider, also operating as SSL certificate authority.

Zstandard is a lossless data compression algorithm developed by Yann Collet at Facebook.

Session cookies are temporary cookies, which are deleted when the user closes the browser.

Non-HttpOnly cookies are used in the HTTP protocol and also in client side scripts, which may be a security threat.

Secure cookies are used only via an encrypted connections, which may increase security.

Gzip (GNU zip) is a file compression algorithm.

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

HTTP/3 is the third major version of the HTTP network protocol, derived from the QUIC protocol.

HTTP Strict Transport Security (HSTS) defines a mechanism enabling web sites to declare themselves accessible only via secure connections.

Zstandard is a lossless data compression algorithm developed by Yann Collet at Facebook.

Persistent cookies with an expiration time between 1 month and 1 year.

Brotli is a lossless compression algorithm developed by Google.

UTF-8 (8-bit Unicode Transformation Format) is a variable-length character encoding for Unicode, which is backwards compatible with ASCII.

Russian Federation