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Site Info - Collaborateandlearn.org
Overview of web technologies used by Collaborateandlearn.org.
Collaborate and Learn
Description on Homepage
Number 379,097 of all websites according to Alexa
Moodle is a web-based open source course management system based on PHP.
PHP is a popular scripting language for creating web pages.
HTML5 is the fifth revision of the HTML standard.
Transitional version of HTML.
UTF-8 (8-bit Unicode Transformation Format) is a variable-length character encoding for Unicode, which is backwards compatible with ASCII.
ISO-8859-1 (informally also called Latin-1) is an 8-bit character set for Western European languages.
JPEG (Joint Photographic Experts Group) is a lossy compression method suitable to store photographic images.
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.
Session cookies are temporary cookies, which are deleted when the user closes the browser.
HttpOnly cookies are used only in the HTTP protocol and not in client side scripts, which may increase security.
Secure cookies are used only via an encrypted connections, which may increase security.
Gzip (GNU zip) is a file compression algorithm.
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/.
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.
Microdata is a specification to integrate metadata within existing content on web pages.
Sectigo (formerly Comodo CA) is a US-based SSL certificate authority.
IdenTrust is a SSL certificate authority.
The SSL certificate is invalid because it is not issued for the domain where it is used.
Nginx (pronounced as "engine X") is a lightweight open source web server developed by Igor Sysoev.
The Apache HTTP Server is a popular open source web server by the Apache Software Foundation.
Debian is a Linux distribution.
Seeweb is an Italian web hosting provider.
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