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Site Info - Yelp.com
Overview of web technologies used by Yelp.com.
Restaurants, Dentists, Bars, Beauty Salons, Doctors - YelpUser Reviews and Recommendations of Best Restaurants, Shopping, Nightlife, Food, Entertainment, Things to Do, Services and More at Yelp
Description on Homepage
12 December 2003
Number 214 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.
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.
Scalable Vector Graphics (SVG) is an XML-based vector image format.
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.
Persistent cookies with an expiration time of more than 10 years.
HttpOnly cookies are used only in the HTTP protocol and not in client side scripts, which may increase security.
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.
Gzip (GNU zip) is a file compression algorithm.
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/.
Embedded Cascading Style Sheets define a set of style rules in a <style> element within a web page.
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.
Microdata is a specification to integrate metadata within existing content on web pages.
Generic RDFa (Resource Description Framework in attributes) is RDFa without further specialization.
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.
The Google Advertising network consists of AdSense, DoubleClick and other services.
Nginx (pronounced as "engine X") is a lightweight open source web server developed by Igor Sysoev.
Fastly is a content delivery network.
CloudFlare provides a content delivery network.
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