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Site Info - Irs.gov

Overview of web technologies used by Irs.gov.

Website Background

Internal Revenue Service | An official website of the United States government
The Internal Revenue Service is the nation's tax collection agency and administers the Internal Revenue Code enacted by Congress.

Description on Homepage

Number 804 of all websites according to Alexa

Popularity rank

CountryVisitorsCountry Rank
United States93.2%145
United Kingdom0.6%4,655
China0.6%13,345

Main visitors locations

Drupal is an open source content management system written in PHP, originally developed by Dries Buytaert.

Drupal 8
(0% of sites use a newer version)

PHP is a popular scripting language for creating web pages.

PHP

Java is a general-purpose language originally developed by Sun Microsystems.

Java

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

JavaScript

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

jQuery

HTML5 is the fifth revision of the HTML standard.

HTML5

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

UTF-8

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

JPEG

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

SVG

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.

PNG
(used until recently)

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

External CSS

Inline Cascading Style Sheets define style rules directly within an (X)HTML element using the style attribute.

Inline CSS

Gzip (GNU zip) is a file compression algorithm.

Gzip Compression

A strong ETag is an HTTP header field for validation of cached web pages, that indicates a byte-for-byte identical page in the cache.

Strong ETag

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.

IPv6

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

HTTP Strict Transport Security

The websites redirects visitors to its www subdomain, e.g. from example.com to www.example.com.

Default subdomain www

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

Default protocol https

Persistent cookies with an expiration time of up to 1 day.

Cookies expiring in hours
(used until recently)

HttpOnly cookies are used only in the HTTP protocol and not in client side scripts, which may increase security.

HttpOnly Cookies
(used until recently)

Secure cookies are used only via an encrypted connections, which may increase security.

Secure Cookies
(used until recently)

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

Generic RDFa

Entrust is an IT security service provider, also operating as SSL certificate authority.

Entrust

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

Twitter

AddToAny is a social bookmarking and sharing service.

AddToAny

New Relic is a web application performance management tool.

New Relic

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

Google Tag Manager

Akamai is a content delivery network.

Akamai
hosting info based on data from ipinfo.io

United States Government

.gov

United States

English

 

 

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