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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.

Zepto is a minimalist JavaScript library with a largely jQuery-compatible API.

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

Animate is a CSS library focusing on animations.

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

Alibaba a Chinese e-commerce and cloud computing company.

Alibaba a Chinese e-commerce and cloud computing company.

HiChina is a Chinese internet services provider owned by Alibaba.

The SSL certificate is invalid because it is not issued for the domain where it is used.

Facebook Social Plugins provide a way for Facebook users to share web pages with their friends.

A Twitter/X Button allows a Twitter user to post a tweet from the visited site.

LinkedIn Share Buttons enable visitors to to share website content with their LinkedIn network.

Tumblr buttons make it easy for Tumblr bloggers to share content on their blogs.

The VKontakte (or VK) share button lets website visitors share content on the Russian social network.

The Weibo Share Button enables website visitors to share content on the Chinese Weibo microblogging site.

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.

Gzip (GNU zip) is a file compression algorithm.

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

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

JSON-LD (JavaScript Object Notation for Linked Data) is a method of encoding Linked Data using JSON.

HTML5 is the fifth revision of the HTML standard.

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.

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