Site Info - Itmedia.co.jp

Content Management System

WordPress is an open source blog publishing and content management system, based on PHP and MySQL.

Server-side Programming Language

PHP is a scripting language for creating websites.

Client-side Programming Language

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

JavaScript Library

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

Web Server

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

Web Hosting Provider

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

Data Center Provider

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

Reverse Proxy Service

Amazon CloudFront is a content delivery web service by Amazon.

DNS Server Provider

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

SSL Certificate Authorities

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

Secom Trust is a Japanese IT security service provider, amongst others operating as SSL certificate authority.

JavaScript Content Delivery Networks

Google Hosted Libraries (formerly called Google Libraries API) is a content distribution network for the most popular, open-source JavaScript libraries, provided by Google.

jsDelivr is a service for hosting JavaScript files.

Traffic Analysis Tools

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.

Meta Pixel (formerly Facebook Pixel) is an analytics tool to track actions on websites.

Microsoft Clarity is a website visitor tracking tool.

Adobe Analytics is a web site traffic analysis service formerly called Omniture. Its products include SiteCatalyst, WebSideStory and Hitbox.

Lotame Crowd Control is an analytics package to measure social media behavior for publishers and advertisers.

Advertising Networks

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

Amazon Associates is the affiliate program of Amazon.

Tag Manager

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

Social Widgets

Facebook Social Plugins provide a way for Facebook users to share web pages with their friends.

A Twitter/X Button allows a Twitter user to post a tweet from the visited site.

Site Elements

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.

Session cookies are temporary cookies, which are deleted when the user closes the browser.

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.

HTTP/2 is the second major version of the HTTP network protocol.

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/.

Structured Data Formats

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.

Generic RDFa (Resource Description Framework in attributes) is RDFa without further specialization.

Microdata is a specification to integrate metadata within existing content on web pages.

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

Markup Languages

Transitional version of HTML.

HTML5 is the fifth revision of the HTML standard.

Character Encoding

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

Image File Formats

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.

GIF (Graphics Interchange Format) is a lossless compression image format, originally introduced by CompuServe and suitable to store graphics, logos and simple animations.

Scalable Vector Graphics (SVG) is an XML-based vector image format.

Top Level Domain

Japan

Server Locations

Content Language