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PHP is a scripting language for creating websites.

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.

Bootstrap is an open source HTML, CSS, and JavaScript framework.

Bootstrap is an open source HTML, CSS, and JavaScript framework.

The Apache HTTP Server is an open source web server by the Apache Software Foundation.

CentOS is a Linux distribution based on Red Hat Enterprise Linux.

New World Telecommunications (NWT) is a telecom and web hosting provider based in Hong Kong, owned by New World Development.

HKBN (Hong Kong Broadband Network) is an ICT service provider based in Hong Kong. This includes the former WTT HK.

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

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

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

GoDaddy is an IT service provider, among others operating as SSL certificate authority. This includes ValiCert certificates, now operated by GoDaddy.

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.

The Google Advertising network consists of AdSense, DoubleClick and other services.

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.

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.

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

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.

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.

JPEG (Joint Photographic Experts Group) is a lossy compression method suitable to store photographic images.

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