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Site Info - Booking.com

Overview of web technologies used by Booking.com.

Website Background

Booking.com: 28,876,887 hotel and property listings worldwide. 171+ million hotel reviews.
Big savings on hotels in 120,000 destinations worldwide. Browse hotel reviews and find the guaranteed best price on hotels for all budgets.

Description on Homepage

17 April 1998

Online since

Number 100 of all websites according to Alexa

Popularity rank

CountryVisitorsCountry Rank
United States8.4%271
Japan7.2%97
Germany6.5%62

Main visitors locations

Java is a general-purpose language originally developed by Sun Microsystems.

Java

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

HTML5 is the fifth revision of the HTML standard.

HTML5

UTF-8 (8-bit Unicode Transformation Format) is a variable-length character encoding for Unicode, which is backwards compatible with ASCII.

UTF-8

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

JPEG (Joint Photographic Experts Group) is a lossy compression method suitable to store photographic images.

JPEG

GIF (Graphics Interchange Format) is a lossless compression image format, originally introduced by CompuServe and suitable to store graphics, logos and simple animations.

GIF

Scalable Vector Graphics (SVG) is an XML-based vector image format.

SVG

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

External CSS

Embedded Cascading Style Sheets define a set of style rules in a <style> element within a web page.

Embedded CSS

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

Inline CSS

Persistent cookies with an expiration time between 1 and 10 years.

Cookies expiring in years

HttpOnly cookies are used only in the HTTP protocol and not in client side scripts, which may increase security.

HttpOnly Cookies

Secure cookies are used only via an encrypted connections, which may increase security.

Secure Cookies

Gzip (GNU zip) is a file compression algorithm.

Gzip Compression

HTTP Strict Transport Security (HSTS) defines a mechanism enabling web sites to declare themselves accessible only via secure connections.

HTTP Strict Transport Security

The websites redirects visitors to its www subdomain, e.g. from example.com to www.example.com.

Default subdomain www

The websites redirects visitors to use SSL encryption, e.g. from http://example.com/ to https://example.com/.

Default protocol https

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.

Open Graph

Twitter Cards enable automatic attachment of photos, videos and media elements to Tweets.

Twitter Cards

JSON-LD (JavaScript Object Notation for Linked Data) is a method of encoding Linked Data using JSON.

JSON-LD

Generic RDFa (Resource Description Framework in attributes) is RDFa without further specialization.

Generic RDFa

DigiCert is an SSL certificate authority. This includes Verizon, whose Enterprise SSL Business has been acquired by DigiCert.

DigiCert

Google Analytics is a free service to get detailed statistics about the visitors of a website, provided by Google.

Google Analytics

Tealium offers a website tag management system.

Tealium

Nginx (pronounced as "engine X") is a lightweight open source web server developed by Igor Sysoev.

Nginx

Commercial entities

.com

Netherlands

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