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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.

Nginx (pronounced as "engine X") is a lightweight open source web server developed by Igor Sysoev.

China Telecom (China Telecommunications Corporation) is a Chinese state-owned telecommunication company.

Alibaba a Chinese e-commerce and cloud computing company.

China Telecom (China Telecommunications Corporation) is a Chinese state-owned telecommunication company.

Alibaba a Chinese e-commerce and cloud computing company.

Alibaba Cloud CDN is the content delivery network by Alibaba.

Tencent is a Chinese IT and telecommunication services provider. This includes its QQ and DNSPod brands.

Sectigo (formerly Comodo CA) is a US-based SSL certificate authority.

Baidu Analytics (Tongji) is a web analytics service by Baidu.

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.

A weak ETag is an HTTP header field for validation of cached web pages, that indicates a semantically equivalent page in the cache.

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.

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.

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