Kayak.co.uk is built with the following tech stack:
Mobile
Viewport Meta
This page uses the viewport meta tag which means the content may be optimized for mobile content.
Mobile Non Scaleable Content
This content is formatted for mobile devices, it does not allow the content to be scaled.
Apple Mobile Web App Capable
Launches a web application for Safari on iOS in full-screen mode to look like a native application.
Apple Mobile Web Clips Icon
This page contains an icon for iPhone, iPad and iTouch devices.
Document Standards
Meta Robot
This page contains a meta robots tag which tells search engines and robots to index or not index the page.
Meta Description
The description attribute provides a concise explanation of the page content.
Twitter Cards
Twitter cards make it possible for you to attach media experiences to Tweets that link to your content.
Open Graph Protocol
The Open Graph protocol enables any web page to become a rich object in a social graph, a open protocol supported by Facebook
Canonical Content Tag
Public specification of a preferred URL for a page allows search engines to understand the original location for content.
HREF Lang
Contains language specific links.
Cascading Style Sheets
Cascading Style Sheets (CSS) is a stylesheet language used to describe the presentation of a document written in a markup language. Its most common application is to style web pages written in HTML
JSON-LD
JSON-LD, or JavaScript Object Notation for Linked Data, is a method of transporting Linked Data using JSON.
Javascript
JavaScript is a scripting language most often used for client-side web development.
WAI-ARIA
A way to make Web content and Web applications more accessible to people with disabilities. It especially helps with dynamic content and advanced user interface controls developed with Ajax, HTML, JavaScript, and related technologies.
HTML5 DocType
The DOCTYPE is a required preamble for HTML5 websites.
HTML 5 Specific Tags
This page contains tags that are specific to an HTML 5 implementation.
Content Security Policy
Content Security Policy is a computer security concept, to prevent cross-site scripting XSS attacks.
Report URI CSP
Report-uri directive instructs the user agent to report attempts to violate the Content Security Policy.
X-XSS-Protection
X-XSS-Protection is a HTTP header set by Internet Explorer 8+. This header lets domains toggle on and off the "XSS Filter" of IE8, which prevents some categories of XSS attacks.
Content Type Options
Used to disable MIME-sniffing for a particular HTTP response.
Referrer Policy
Requests made from a document, and for navigations away from that document are associated with a Referrer header. This policy determines in the browser should send a referrer or not.
Strict Transport Security
The HTTP Strict-Transport-Security (HSTS) header instructs the browser to only use https.
Language
Argentina HREF LANG
This webpage has alternate versions available in Argentina via the use of the hreflang tag.
Austria HREF LANG
This webpage has alternate versions available in Austria via the use of the hreflang tag.
Australia HREF LANG
This webpage has alternate versions available in Australia via the use of the hreflang tag.
Belgium HREF LANG
This webpage has alternate versions available in Belgium via the use of the hreflang tag.
Brazil HREF LANG
This webpage has alternate versions available in Brazil via the use of the hreflang tag.
Canada HREF LANG
This webpage has alternate versions available in Canada via the use of the hreflang tag.
Switzerland HREF LANG
This webpage has alternate versions available in Switzerland via the use of the hreflang tag.
Chile HREF LANG
This webpage has alternate versions available in Chile via the use of the hreflang tag.
China HREF LANG
This webpage has alternate versions available in China via the use of the hreflang tag.
Spanish - Colombia HREF LANG
This webpage has alternate versions available in Spanish - Colombia via the use of the hreflang tag.
Germany HREF LANG
This webpage has alternate versions available in Germany via the use of the hreflang tag.
Denmark HREF LANG
This webpage has alternate versions available in Denmark via the use of the hreflang tag.
Spain HREF LANG
This webpage has alternate versions available in Spain via the use of the hreflang tag.
Finland HREF LANG
This webpage has alternate versions available in Finland via the use of the hreflang tag.
France HREF LANG
This webpage has alternate versions available in France via the use of the hreflang tag.
United Kingdom HREF LANG
This webpage has alternate versions available in United Kingdom via the use of the hreflang tag.
HongKong HREF LANG
This webpage has alternate versions available in HongKong via the use of the hreflang tag.
India HREF LANG
This webpage has alternate versions available in India via the use of the hreflang tag.
Italy HREF LANG
This webpage has alternate versions available in Italy via the use of the hreflang tag.
Japan HREF LANG
This webpage has alternate versions available in Japan via the use of the hreflang tag.
Korea HREF LANG
This webpage has alternate versions available in Korea via the use of the hreflang tag.
Mexico HREF LANG
This webpage has alternate versions available in Mexico via the use of the hreflang tag.
Malaysia HREF LANG
This webpage has alternate versions available in Malaysia via the use of the hreflang tag.
Netherlands HREF LANG
This webpage has alternate versions available in Netherlands via the use of the hreflang tag.
Norway HREF LANG
This webpage has alternate versions available in Norway via the use of the hreflang tag.
New Zealand HREF LANG
This webpage has alternate versions available in New Zealand via the use of the hreflang tag.
Philippines HREF LANG
This webpage has alternate versions available in Philippines via the use of the hreflang tag.
Poland HREF LANG
This webpage has alternate versions available in Poland via the use of the hreflang tag.
Portugal HREF LANG
This webpage has alternate versions available in Portugal via the use of the hreflang tag.
Romanian - Romania HREF LANG
This webpage has alternate versions available in Romanian - Romania via the use of the hreflang tag.
Saudi Arabia HREF LANG
This webpage has alternate versions available in Saudi Arabia via the use of the hreflang tag.
Sweden HREF LANG
This webpage has alternate versions available in Sweden via the use of the hreflang tag.
Singapore HREF LANG
This webpage has alternate versions available in Singapore via the use of the hreflang tag.
Turkey HREF LANG
This webpage has alternate versions available in Turkey via the use of the hreflang tag.
Taiwan HREF LANG
This webpage has alternate versions available in Taiwan via the use of the hreflang tag.
United States HREF LANG
This webpage has alternate versions available in United States via the use of the hreflang tag.
South Africa HREF LANG
This webpage has alternate versions available in South Africa via the use of the hreflang tag.
United States HREF LANG
This webpage has alternate versions available in United States via the use of the hreflang tag.
Analytics and Tracking
Google Analytics
Google Analytics offers a host of compelling features and benefits for everyone from senior executives and advertising and marketing professionals to site owners and content developers.
SSL Certificates
HSTS
Forces browsers to only communicate with the site using HTTPS.
Document Encoding
UTF-8
UTF-8 (8-bit UCS/Unicode Transformation Format) is a variable-length character encoding for Unicode. It is the preferred encoding for web pages.