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Site Info - Yahoo.com
Overview of web technologies used by Yahoo.com.
YahooNews, email and search are just the beginning. Discover more every day. Find your yodel.
Description on Homepage
18 January 1995
Number 9 of all websites according to Alexa
Main visitors locations
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.
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.
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.
Non-secure cookies may be used via an unencrypted connections, which may be a security threat.
Gzip (GNU zip) is a file compression algorithm.
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/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 use SSL encryption, e.g. from http://example.com/ to https://example.com/.
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 Cards enable automatic attachment of photos, videos and media elements to Tweets.
Generic RDFa (Resource Description Framework in attributes) is RDFa without further specialization.
DigiCert is an SSL certificate authority. This includes Verizon, whose Enterprise SSL Business has been acquired by DigiCert.
A Twitter Button allows a Twitter user to post a tweet from the visited site.
The Pinterest Pin-It button allows website visitors to pin images onto Pinterest.
Tumblr buttons make it easy for Tumblr bloggers to share content on their blogs.
Full Circle Studies collects information about general website visitation patterns as part of the ComScore market research.
The Google Advertising network consists of AdSense, DoubleClick and other services.
ONE by AOL (formerly Adtech and AOL Advertising) is an ad serving platform. This includes services that were originally developed independently, such as Tacoda, Adsonar and Quigo.
The eBay Partner Network is the affiliate program of eBay.
The Apache Traffic Server is a caching proxy server derived from the Yahoo Traffic Server.
Yahoo operates several web portals and related services world-wide, owned by Verizon.
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