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

jQuery is a JavaScript library that simplifies HTML document traversing, event handling, animating and Ajax interaction. Originally developed by John Resig.

GSAP (GreenSock Animation Platform) is a JavaScript library for HTML5 animations.

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

Alibaba a Chinese e-commerce and cloud computing company.

UCloud is a Chinese cloud computing provider.

Zenlayer is a cloud services provider headquartered in USA.

Amazon is a US-based e-commerce and cloud computing provider.

Alibaba a Chinese e-commerce and cloud computing company.

UCloud is a Chinese cloud computing provider.

Zenlayer is a cloud services provider headquartered in USA.

Amazon is a US-based e-commerce and cloud computing provider.

Amazon CloudFront is a content delivery web service by Amazon.

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

Microsoft is a multinational technology company headquartered in USA, also offering email services.

DigiCert is an SSL certificate authority. This includes Verizon, whose Enterprise SSL Business has been acquired by DigiCert.

Google Analytics is a free service to get detailed statistics about the visitors of a website, provided by Google. This includes the Ads conversion tracking and the Floodlight services.

Facebook Pixel is an analytics tool to track actions on websites.

Contentsquare is a hosted web analytics service. This includes the former ClickTale brand.

The Google Tag Manager is a Google service to support webmasters to manage tags on their websites.

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.

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/.

JSON-LD (JavaScript Object Notation for Linked Data) is a method of encoding Linked Data using JSON.

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.

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