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

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

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

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

Cloudflare provides a content delivery network.

Amazon CloudFront is a content delivery web service by Amazon.

Cloudflare provides DNS servers and other web services.

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

Starfield Technologies is an SSL certificate authority owned by Go Daddy.

Let’s Encrypt is a free, automated, and open certificate authority provided by the Internet Security Research Group.

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 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 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/.

External Cascading Style Sheets define style rules in a separate CSS file.

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.

Twitter/X Cards enable automatic attachment of photos, videos and media elements to tweets.

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.

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