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Site Info - 2sao.vn
Overview of web technologies used by 2sao.vn.
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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.
Gzip (GNU zip) is a file compression algorithm.
The websites redirects visitors to use SSL encryption, e.g. from http://example.com/ to https://example.com/.
Persistent cookies with an expiration time of up to 1 day.
Persistent cookies with an expiration time between 1 day and 1 month.
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.
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.
Generic RDFa (Resource Description Framework in attributes) is RDFa without further specialization.
The Dublin Core Schema is a set of vocabulary terms that can be used to describe web resources and physical resources.
Sectigo (formerly Comodo CA) is a US-based SSL certificate authority.
Google Analytics is a free service to get detailed statistics about the visitors of a website, provided by Google.
Facebook Pixel is an analytics tool to track actions on websites.
CrazyEgg is a website visitor and click tracking service.
The Google Advertising network consists of AdSense, DoubleClick and other services.
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