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Site Info - Zhihu.com
Overview of web technologies used by Zhihu.com.
知乎 - 有问题，上知乎有问题，上知乎。知乎，可信赖的问答社区，以让每个人高效获得可信赖的解答为使命。知乎凭借认真、专业和友善的社区氛围，结构化、易获得的优质内容，基于问答的内容生产方式和独特的社区机制，吸引、聚集了各行各业中大量的亲历者、内行人、领域专家、领域爱好者，将高质量的内容透过人的节点来成规模地生产和分享。用户通过问答等交流方式建立信任和连接，打造和提升个人影响力，并发现、获得新机会。
Description on Homepage
26 March 2004
Number 78 of all websites according to Alexa
Main visitors locations
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.
Scalable Vector Graphics (SVG) is an XML-based vector image format.
External Cascading Style Sheets define style rules in a separate CSS file.
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/2 is the second major version of the HTTP network protocol.
SPDY (pronounced speedy) is a web protocol developed by Google, the basis for HTTP/2.
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/.
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.
DigiCert is an SSL certificate authority. This includes Verizon, whose Enterprise SSL Business has been acquired by DigiCert.
Zeus Web Server (ZWS) is a web server developed by Zeus Technology. Development of Zeus has been discontinued.
Unix is a range of operating systems originally developed at Bell Labs. This contains Unix and Unix-like systems, such as Linux.
Akamai is a content delivery network.
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