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PHP is a scripting language for creating websites.

Java is a general-purpose language originally developed by Sun Microsystems.

JavaScript is a lightweight, object-oriented, cross-platform scripting language. This includes TypeScript.

Microsoft's Active Server Pages technology on the .NET framework.

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

jQuery is a JavaScript library that simplifies HTML document traversing, event handling, animating and Ajax interaction. Originally developed by John Resig.

Moment.js is a library to manipulate dates in JavaScript.

Prototype is a JavaScript framework originally developed by Sam Stephenson.

Bootstrap is an open source HTML, CSS, and JavaScript framework.

Lodash is a JavaScript utility library delivering modularity.

Next.js is an open source JavaScript framework based on React and Node.js.

Animate is a CSS library focusing on animations.

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

Node.js is a server-side JavaScript environment for writing network programs such as web servers, originally developed by Ryan Dahl.

Unix is a range of operating systems originally developed at Bell Labs. This includes Unix and Unix-like systems, such as Linux.

Rocky Linux is a Linux distribution compatible with Red Hat Enterprise Linux.

Naver is a global ICT company headquartered in South Korea.

Smileserv is a South Korean cloud services provider.

Naver is a global ICT company headquartered in South Korea.

Smileserv is a South Korean cloud services provider.

Mailplug is a Korean provider of email services.

Sectigo (formerly Comodo CA) is a US-based SSL certificate authority.

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

The CDNJS is a content distribution network, hosting a large number of JavaScript libraries, provided by CloudFlare.

The jQuery CDN hosts copies of the jQuery library, provided by MaxCDN.

External Cascading Style Sheets define style rules in a separate CSS file.

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

Inline Cascading Style Sheets define style rules directly within an (X)HTML element using the style attribute.

The frameset element is an HTML tag which specifies the layout of a web page in terms of rectangular subspaces.

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

Persistent cookies with an expiration time of more than 10 years.

HttpOnly cookies are used only in the HTTP protocol and not in client side scripts, which may increase security.

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.

Non-secure cookies may be used via an unencrypted connections, which may be a security threat.

Gzip (GNU zip) is a file compression algorithm.

A weak ETag is an HTTP header field for validation of cached web pages, that indicates a semantically equivalent page in the cache.

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

The websites redirects visitors to its www subdomain, e.g. from example.com to www.example.com.

The websites redirects visitors to use SSL encryption, e.g. from http://example.com/ to https://example.com/.

Persistent cookies with an expiration time of up to 1 day.

The Open Graph protocol, originally developed by Facebook, is an RDFa-based format that enables any web page to become a rich object in a social graph.

HTML5 is the fifth revision of the HTML standard.

Transitional version of XHTML.

Transitional version of HTML.

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

PNG (Portable Network Graphics) is a lossless compression image format, suitable to store graphics with uniformly colored areas, and originally introduced as a free, open-source successor of GIF.

GIF (Graphics Interchange Format) is a lossless compression image format, originally introduced by CompuServe and suitable to store graphics, logos and simple animations.

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

Scalable Vector Graphics (SVG) is an XML-based vector image format.

Republic of Korea (South Korea)