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Site Info - Opendns.com

Overview of web technologies used by Opendns.com.

Website Background

Internet Security or DNS Service for your Business or Home - OpenDNS

Description on Homepage

Free to access DNS servers which attempt to detect phishing scams that are often times linked to from within unsolicited emails.

Description from Alexa

4 September 2003

Online since

Number 4,180 of all websites according to Alexa

Popularity rank

CountryVisitorsCountry Rank
United States31.6%2,406
India15.6%2,538
Brazil3.9%4,008
CityVisitorsCity Rank
New York, NY, US3%2,368
Los Angeles, CA, US2.5%2,806
Kabul, AF1.8%44

Main visitors locations

Website Quality Alerts

Found on page http://www.opendns.com/
The character encoding seems to be "UTF-8", but it is not defined.

Missing character encoding definition

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ExpressionEngine is a content management system based on PHP and MySQL, developed by EllisLab.

ExpressionEngine

PHP is a popular scripting language for creating web pages.

PHP

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

HTML - Hypertext Mark-up Language - is the a language to define web pages.

HTML

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

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

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

External CSS

Session cookies are temporary cookies, which are deleted when the user closes the browser.

Session Cookies

Persistent cookies with an expiration time between 1 day and 1 month.

Cookies expiring in days

Persistent cookies with an expiration time between 1 month and 1 year.

Cookies expiring in months

Non-HttpOnly cookies are used in the HTTP protocol and also in client side scripts, which may be a security threat.

Non-HttpOnly Cookies

Non-secure cookies may be used via an unencrypted connections, which may be a security threat.

Non-Secure Cookies

Gzip (GNU zip) is a file compression algorithm.

Gzip Compression

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 addresses is assigned to it, regardless of the content delivered at that address.

IPv6

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

Inline CSS
(used until recently)

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.

GeoTrust

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

Twitter

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

Apache

DoubleClick is an advertising network owned by Google.

DoubleClick
(used until recently)

Commercial entities

.com

English

Technology Score

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.

TotalPopularity TrafficVersion
Technology Score546950
Content Management Systems25942
Server-side Programming Languages689047
Client-side Programming Languages7610052
JavaScript Libraries749652
Markup Languages606653
SSL Certificate Authorities535253
Social Widgets555455
Web Servers628143
1 Quality Alert-5

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