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Site Info - Usda.gov
Overview of web technologies used by Usda.gov.
Description on Homepage
U.S. Department of Agriculture
Description from Alexa
Number 3,729 of all websites according to Alexa
Main visitors locations
Drupal is an open source content management system written in PHP, originally developed by Dries Buytaert.
PHP is a popular scripting language for creating web pages.
HTML5 is the fifth revision of the HTML standard.
Transitional version of XHTML.
UTF-8 (8-bit Unicode Transformation Format) is a variable-length character encoding for Unicode, which is backwards compatible with ASCII.
JPEG (Joint Photographic Experts Group) is a lossy compression method suitable to store photographic images.
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.
Scalable Vector Graphics (SVG) is an XML-based vector image format.
GIF (Graphics Interchange Format) is a lossless compression image format, originally introduced by CompuServe and suitable to store graphics, logos and simple animations.
External Cascading Style Sheets define style rules in a separate CSS file.
Inline Cascading Style Sheets define style rules directly within an (X)HTML element using the style attribute.
Gzip (GNU zip) is a file compression algorithm.
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.
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.
HTTP Strict Transport Security (HSTS) defines a mechanism enabling web sites to declare themselves accessible only via secure connections.
Embedded Cascading Style Sheets define a set of style rules in a <style> element within a web page.
HTTP/2 is the second major version of the HTTP network protocol.
Entrust is an IT security service provider, also operating as SSL certificate authority.
GeoTrust is a SSL certificate authority owned by Symantec. This includes SSL certificates issues by the certification branch of Equifax, which was acquired by GeoTrust.
Google Analytics is a free service to get detailed statistics about the visitors of a website, provided by Google.
Siteimprove is a web governance software, that includes a web analytics module.
The Apache HTTP Server is a popular open source web server by the Apache Software Foundation.
CentOS is a Linux distribution based on Red Hat Enterprise Linux.
Akamai is a content delivery network.
United States Government
The technology score rates a site based on its technologies in a range from 0 to 100. It consists in a popularity score (how many sites use the same technologies), a traffic score (how much traffic have other sites using the same technologies) and a version score (how many sites use more recent technology versions). Quality alerts also affect the rating.
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