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Site Info - Btdog.com
Overview of web technologies used by Btdog.com.
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Description on Homepage
Number 31,514 of all websites according to Alexa
Main visitors locations
PHP is a popular scripting language for creating web pages.
Transitional version of XHTML.
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.
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.
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/.
Embedded Cascading Style Sheets define a set of style rules in a <style> element within a web page.
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.
A weak ETag is an HTTP header field for validation of cached web pages, that indicates a semantically equivalent page in the cache.
SPDY (pronounced speedy) is a web protocol developed by Google, the basis for HTTP/2.
Sectigo (formerly Comodo CA) is a US-based 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.
China Unicom (formerly China Netcom) is a Chinese telecom operator, also offering web hosting services.
China Telecom (China Telecommunications Corporation) is a Chinese state-owned telecommunication company.
Chunghwa Telecom is a Taiwanese telecommunications company.
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