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Site Info - Csdn.net
Overview of web technologies used by Csdn.net.
Description on Homepage
11 March 1999
Number 34 of all websites according to Alexa
Main visitors locations
PHP is a popular scripting language for creating web pages.
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.
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.
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.
Persistent cookies with an expiration time between 1 and 10 years.
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/.
DigiCert is an SSL certificate authority. This includes Verizon, whose Enterprise SSL Business has been acquired by DigiCert.
Baidu Analytics (Tongji) is a web analytics service by Baidu.
Nginx (pronounced as "engine X") is a lightweight open source web server developed by Igor Sysoev.
Alibaba a Chinese e-commerce company.
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