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Site Info - Tumblr.com
Overview of web technologies used by Tumblr.com.
Sign up | TumblrTumblr is a place to express yourself, discover yourself, and bond over the stuff you love. It's where your interests connect you with your people.
Description on Homepage
A free blog hosting platform offering customizable templates, bookmarklets, photos, mobile apps, and social network integration.
Description from Alexa
Number 64 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.
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.
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.
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.
Persistent cookies with an expiration time between 1 month and 1 year.
HttpOnly cookies are used only in the HTTP protocol and not in client side scripts, which may increase security.
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 its www subdomain, e.g. from example.com to www.example.com.
The websites redirects visitors to use SSL encryption, e.g. from http://example.com/ to https://example.com/.
DigiCert is an SSL certificate authority. This includes Verizon, whose Enterprise SSL Business has been acquired by DigiCert.
Google Analytics is a free service to get detailed statistics about the visitors of a website, provided by Google.
Full Circle Studies collects information about general website visitation patterns as part of the ComScore market research.
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.
Tumblr is a hosted blogging platform owned by Verizon.
Webzilla is a web hosting provider owned by XBT Holding.
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