Site Info - Agenciatributaria.gob.es

OpenText (formerly also called Vignette and RedDot) provides a range of content management products.

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.

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

Telefónica de España is a Spanish IT and telecommunications provider. This includes its brand Tuenti.

Telefónica de España is a Spanish IT and telecommunications provider. This includes its brand Tuenti.

Cloudflare provides DNS servers and other web services.

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

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

HTTP Strict Transport Security (HSTS) defines a mechanism enabling web sites to declare themselves accessible only via secure connections.

The websites redirects visitors to use SSL encryption, e.g. from http://example.com/ to https://example.com/.

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.

Spain