JavaScript

Solr

Solr: the powerful search platform from Apache

What exactly is Solr? The answer to this question lies in our article. In combination with the Java library, Lucene, Solr can be used to build powerful web search engines. Do you need to index your documents? Solr will take care of this. First, we explain the basic terms of practical open source software and its functions. In our Solr tutorial, we’ll explain how to set up the search platform. In...

Introduction to Node.js

Node.js: the JavaScript runtime environment at a glance

With the software platform, Node.js, you can use JavaScript server-side and benefit from the asynchronous, event-based programming and the range of options for developing server applications. In this Node.js tutorial, we give you an overview of the program’s modular structure, explain how you can install program modules at any time using the integrated package manager, NPM, and use them to set up...

SVG format: how to embed SVG vector graphics

SVG format: how to embed graphic files into your website

Increasing the size of a raster graphic beyond its actual resolution comes with a loss of quality, which can lead to serious problems in your responsive web design, including increased loading times and a lower ranking in search engine results pages. Optimizing GIF, PNG, and JPG images to display properly across different devices can rapidly turn into a mammoth task. Because of this, vector...

MooTools: tools for class-based JavaScript

MooTools: the compact JavaScript framework

No programming language has made its mark quite like JavaScript. Developed in 1995 as a Java alternative for the netscape browser, you would be hard pushed to find a web application that doesn’t use this universal scripting language. However, critics rightly express concerns over the fact that JavaScript lacks a class system and the language is more unstructured than it should be. The MooTools...

Browser fingerprints: tracking without cookies

Browser fingerprints: the basics and protection options

In recent years, so-called browser fingerprinting has established itself as a tracking method that doesn’t rely on the use of cookies. Web servers capture different characteristics from visitors’ browsers and determine their digital fingerprint based on them. They enable visitors to be recognised at a later date. While some information is automatically transmitted, it is mainly active elements...

Tutorial: JSON-LD with Schema.org

Marking up your website with JSON-LD according to Schema.org

JSON LD gives the programmers the possibility of embedding meta data as script separately from web content. Separating HTML markup and semantic annotation helps ensure a more easily read source text and facilitates tagging meta data for dynamic web content. All of this makes JSON-LD a serious competitor of the data formats RDFa and Microdata.

The most important meta tags and their functions

The essential meta tags at a glance

Meta tags are used by website owners to specify metadata in HTML documents. The coded information integrates with web browsers and search engine crawlers to enhance the searchability of a website. But which meta elements are actually required by user agents to improve processing? And how can you use metadata to boost your website’s ranking in the search results?

Tutorial: Microdata markup with Schema.org

How to tag your website with microdata according to Schema.org

Microdata offers a simple and flexible meta syntax for semantically tagging website content. Using a unified markup format according to Schema.org ensures high compatibility with web browsers and search engine crawlers. Reap the benefits of extending search results, like rich snippets or breadcrumbs, by tagging your HTML code with Schema.org microdata syntax.

Tutorial: RDFa—markup with Schema.org

Tutorial: RDFa—markup with Schema.org

Recommended by W3C as a standard for embedding metadata into HTML, HTML5, XHTML, and other XML dialects, this data format forms the foundation for the semantic web. The project Schema.org provides a standard vocabulary for the markup format. Find out more about its applications and limits and get a feel for tagging with RDFa.

Overview of Schema.org

What is Schema.org?

Structured data is the only pathway to web 3.0. Web owners wishing to enlist the help of web crawlers or screenshots with semantic notation have an enormous choice of markup vocabularies to select from. The collaborative project Schema.org seeks to make this task a more manageable feat. The standardised markup is based on an agreement between the leading search engine providers of Google,...


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