This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorised as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyse and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may have an effect on your browsing experience.

Necessary

Always Enabled

Necessary cookies are absolutely essential for the website to function properly. These cookies ensure basic functionalities and security features of the website, anonymously.

Cookie	Duration	Description
__cf_bm	1 hour	This cookie, set by Cloudflare, is used to support Cloudflare Bot Management.
cookielawinfo-checkbox-advertisement	1 year	Set by the GDPR Cookie Consent plugin, this cookie records the user consent for the cookies in the "Advertisement" category.
cookielawinfo-checkbox-analytics	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
cookielawinfo-checkbox-functional	11 months	The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
cookielawinfo-checkbox-necessary	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
cookielawinfo-checkbox-others	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
cookielawinfo-checkbox-performance	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
CookieLawInfoConsent	1 year	CookieYes sets this cookie to record the default button state of the corresponding category and the status of CCPA. It works only in coordination with the primary cookie.
rc::a	never	This cookie is set by the Google recaptcha service to identify bots to protect the website against malicious spam attacks.
rc::c	session	This cookie is set by the Google recaptcha service to identify bots to protect the website against malicious spam attacks.
viewed_cookie_policy	11 months	The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.

Functional

Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features.

Cookie	Duration	Description
_cfuvid	session	Used by Cloudflare WAF to distinguish individual users who share the same IP address and apply rate limits.
yt-player-headers-readable	never	The yt-player-headers-readable cookie is used by YouTube to store user preferences related to video playback and interface, enhancing the user's viewing experience.
yt-remote-cast-available	session	The yt-remote-cast-available cookie is used to store the user's preferences regarding whether casting is available on their YouTube video player.
yt-remote-cast-installed	session	The yt-remote-cast-installed cookie is used to store the user's video player preferences using embedded YouTube video.
yt-remote-connected-devices	never	YouTube sets this cookie to store the user's video preferences using embedded YouTube videos.
yt-remote-device-id	never	YouTube sets this cookie to store the user's video preferences using embedded YouTube videos.
yt-remote-fast-check-period	session	The yt-remote-fast-check-period cookie is used by YouTube to store the user's video player preferences for embedded YouTube videos.
yt-remote-session-app	session	The yt-remote-session-app cookie is used by YouTube to store user preferences and information about the interface of the embedded YouTube video player.
yt-remote-session-name	session	The yt-remote-session-name cookie is used by YouTube to store the user's video player preferences using embedded YouTube video.
ytidb::LAST_RESULT_ENTRY_KEY	never	The cookie ytidb::LAST_RESULT_ENTRY_KEY is used by YouTube to store the last search result entry that was clicked by the user. This information is used to improve the user experience by providing more relevant search results in the future.

Analytics

Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.

Cookie	Duration	Description
_ga	1 year 1 month 4 days	Google Analytics sets this cookie to calculate visitor, session and campaign data and track site usage for the site's analytics report. The cookie stores information anonymously and assigns a randomly generated number to recognise unique visitors.
_ga_*	1 year 1 month 4 days	Google Analytics sets this cookie to store and count page views.

Advertisement (Third Party)

Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads.

Cookie	Duration	Description
test_cookie	15 minutes	doubleclick.net sets this cookie to determine if the user's browser supports cookies.
VISITOR_INFO1_LIVE	6 months	YouTube sets this cookie to measure bandwidth, determining whether the user gets the new or old player interface.
VISITOR_PRIVACY_METADATA	6 months	YouTube sets this cookie to store the user's cookie consent state for the current domain.
YSC	session	Youtube sets this cookie to track the views of embedded videos on Youtube pages.
yt.innertube::nextId	never	YouTube sets this cookie to register a unique ID to store data on what videos from YouTube the user has seen.
yt.innertube::requests	never	YouTube sets this cookie to register a unique ID to store data on what videos from YouTube the user has seen.

Research decisions

Approved Research 2025

Approved Research 2022

Approved Research 2021

Approved Research 2020

Approved Research 2019

Approved Research 2024

Approved Research 2023