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PHP is a scripting language for creating websites.

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.

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

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

Animate is a CSS library focusing on animations.

Material Design Lite is a framework for designing websites.

Nginx (pronounced as "engine X") is a lightweight open source web server developed by Igor Sysoev.

Tengine is an open source web server based on Nginx and originated by Taobao.

Orange (formerly France Télécom) is a French telecommunication company, also providing IT services.

China Telecom (China Telecommunications Corporation) is a Chinese state-owned telecommunication company.

Tencent is a Chinese IT and telecommunication company. This includes its QQ brand and others.

China Unicom (formerly China Netcom) is a Chinese telecom operator, also offering web hosting services.

China Mobile is a Chinese state-owned telecommunication corporation.

Orange (formerly France Télécom) is a French telecommunication company, also providing IT services.

China Telecom (China Telecommunications Corporation) is a Chinese state-owned telecommunication company.

Tencent is a Chinese IT and telecommunication company. This includes its QQ brand and others.

China Unicom (formerly China Netcom) is a Chinese telecom operator, also offering web hosting services.

China Mobile is a Chinese state-owned telecommunication corporation.

Tencent is a Chinese IT and telecommunication services provider. This includes its QQ and other brands.

Certum (formerly Unizeto) is a Polish SSL certificate authority owned by Asseco.

Baidu Analytics (Tongji) is a web analytics service by Baidu.

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.

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

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

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

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

Gzip (GNU zip) is a file compression algorithm.

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

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/.

HTML5 is the fifth revision of the HTML standard.

Transitional version of XHTML.

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.

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.

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

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