Site Info - Youku.com

JavaScript is a lightweight, object-oriented, cross-platform scripting language, often used within web pages.

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.

GlobalSign is an IT security service provider, also operating as SSL certificate authority.

Persistent cookies with an expiration time of up to 1 day.

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

Secure cookies are used only via an encrypted connections, which may increase security.

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.

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 use SSL encryption, e.g. from http://example.com/ to https://example.com/.

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

Transitional version of HTML.

UTF-8 (8-bit Unicode Transformation Format) is a variable-length character encoding for Unicode, which is backwards compatible with ASCII.

Commercial entities