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Site Info - Qq.com
Overview of web technologies used by Qq.com.
Description on Homepage
4 May 1995
Number 7 of all websites according to Alexa
PHP is a popular scripting language for creating web pages.
HTML5 is the fifth revision of the HTML standard.
GB2312 is a character encoding system for simplified Chinese characters. GB2312 has been superseded by GBK and GB18030.
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.
GIF (Graphics Interchange Format) is a lossless compression image format, originally introduced by CompuServe and suitable to store graphics, logos and simple animations.
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.
The Internet Protocol version 6 (IPv6) provides amongst others a vastly larger address space than the preceding version 4. We consider a website to support IPv6 if a 128-bit address is assigned to it, regardless of the content delivered at that address.
HTTP/2 is the second major version of the HTTP network protocol.
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/.
DigiCert is an SSL certificate authority. This includes Verizon, whose Enterprise SSL Business has been acquired by DigiCert.
The SSL certificate is invalid because it is not issued for the domain where it is used.
China Unicom (formerly China Netcom) is a Chinese telecom operator, also offering web hosting services.
China Telecom (China Telecommunications Corporation) is a Chinese state-owned telecommunication company.
Akamai is a content delivery network.
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