You can choose or change your cookie settings on the NHS website.
Cookies that measure website use (analytics cookies)
| Name | Purpose | How long it lasts |
|---|---|---|
|
Name
_ga |
Purpose
Used by Google Analytics. Tells us how you use our health campaigns sites. |
How long it lasts
2 years |
|
Name
gat |
Purpose
Used by Google Analytics. Helps stop Google Analytics web servers crashing when collecting information on how you use our health campaigns sites. |
How long it lasts
1 day |
|
Name
_gid |
Purpose
Used by Google Analytics. Sets a unique ID for your session to help tell us how you use our health campaigns sites. |
How long it lasts
1 day |
|
Name
AMCV_# |
Purpose
Used by Adobe Analytics. Tells us if you've used our site before. |
How long it lasts
2 years |
|
Name
AMCVS_#AdobeOrg |
Purpose
Used by Adobe Analytics. This is set when you first visit our site. It lets us know your unique visitor ID each time you use our site. |
How long it lasts
Until you close the browser |
|
Name
com.adobe.reactor.dataElementCookiesMigrated |
Purpose
Used by Adobe Analytics. Includes data elements set to capture usage of our website. |
How long it lasts
Until you clear your browser's local storage |
|
Name
demdex |
Purpose
Used by Adobe Analytics. Allows cross-domain analytics of NHS properties. |
How long it lasts
180 days |
|
Name
nbs_sess |
Purpose
Used by Adobe Analytics. Tells us how you used selected radio button responses through the coronavirus vaccination booking service. |
How long it lasts
Until you close the browser |
|
Name
s_cc |
Purpose
Used by Adobe Analytics. Checks if cookies work in your web browser. |
How long it lasts
Until you close the browser |
|
Name
s_getNewRepeat |
Purpose
Used by Adobe Analytics. Tells us if you've used our website before. |
How long it lasts
30 days |
|
Name
s_ppn |
Purpose
Used by Adobe Analytics. Tells us how you use our website by reading the previous page you visited. |
How long it lasts
1 day |
|
Name
s_sq |
Purpose
Used by Adobe Analytics. Remembers the last link you clicked on. |
How long it lasts
Until you close the browser |
|
Name
Random session ID set by Qualtrics |
Purpose
Used by Qualtrics Feedback. Tells us which pages you’ve visited on our site. |
How long it lasts
Until you close the browser |
|
Name
QSI_S |
Purpose
Used by Qualtrics Feedback. Tells us if you’ve used our site before. |
How long it lasts
1 week |
|
Name
QSI_SI_(id)_intercept |
Purpose
Used by Qualtrics Feedback. Allows us to show survey pop-ups if you come back to our site. |
How long it lasts
Depends on the setting we use for Qualtrics Feedback surveys |
|
Name
QSIPopUnder_PopUnderTarget_SI |
Purpose
Used by Qualtrics Feedback. Stops multiple survey pop-ups appearing on the same page. |
How long it lasts
Until you close the browser |
|
Name
mbox |
Purpose
Used by Adobe Target to set a unique ID for user sessions, so we can show users different versions of the same page (called an A/B test) and so users can be shown personalised versions of pages. |
How long it lasts
2 years |
|
Name
at_check |
Purpose
Used by Adobe Target to check if your browser allows cookies. |
How long it lasts
Until you close the browser |
|
Name
mboxEdgeCluster |
Purpose
Used by Adobe Target so we can show users different versions of the same page (called an A/B test) and users can be shown personalised versions of pages. |
How long it lasts
Until you close the browser |
|
Name
nhsa.adb.cid |
Purpose
Used by Adobe Analytics. Helps us understand how people move between NHS websites and the NHS App. |
How long it lasts
1 year |
|
Name
ai_session |
Purpose
Used by Microsoft Application Insights to collect statistical usage and telemetry information. The cookie stores a unique identifier to recognise a user’s unique session. |
How long it lasts
30 minutes |
|
Name
ai_user |
Purpose
Used by Microsoft Application Insights to collect statistical usage and telemetry information. The cookie stores a unique identifier to recognise users on returning visits over time. |
How long it lasts
1 year |
|
Name
mf_[website-id] |
Purpose
Used by Mouseflow. Identifies your current session on the website. |
How long it lasts
Until you leave the website |
|
Name
mf_user |
Purpose
Used by Mouseflow. Checks if you have used the website before. |
How long it lasts
90 days |
Cookies that remember pop-ups
| Name | Purpose | How long it lasts |
|---|---|---|
|
Name
Banner[Number] |
Purpose
Checks to see if a survey banner has been dismissed to stop it appearing again. |
How long it lasts
99 days |
|
Name
nhsuk-banner-[number] |
Purpose
Checks to see if a survey banner has been dismissed to stop it appearing again. |
How long it lasts
99 days |
Cookies that help with health campaigns
| Name | Purpose | How long it lasts |
|---|---|---|
|
Name
_gcl_au |
Purpose
Set by Google Tag Manager. Helps us show you more relevant adverts for our health campaigns. |
How long it lasts
3 months |
Cookies that make our website work
| Name | Purpose | How long it lasts |
|---|---|---|
|
Name
.AspNetCore.Antiforgery.# |
Purpose
Keeps your information safe by checking that requests come from you. |
How long it lasts
Until you close the browser |
|
Name
.ASPXANONYMOUS |
Purpose
Remembers your activity across multiple pages to improve your experience. |
How long it lasts
69 days |
|
Name
_smokefree_session |
Purpose
Remembers your pages input and states across multiple pages to improve your experience. |
How long it lasts
Until you close the browser |
|
Name
_tobacco_session |
Purpose
Remembers your pages input and states across multiple pages to improve your experience. |
How long it lasts
Until you close the browser |
|
Name
akavpau_waitingroom |
Purpose
Makes sure you are not sent back to wait for coronavirus tests to become available once you have been let through to apply for one. |
How long it lasts
Up to 10 minutes after you've finished using the ask for a coronavirus test service |
|
Name
akavpwr_waitingroom |
Purpose
Makes sure you cannot ask for a coronavirus test when there are none available and that you cannot "game" the system by clicking refresh multiple times. |
How long it lasts
Up to 30 seconds after you've left the page where you wait to ask for a coronavirus test |
|
Name
ARRAffinity |
Purpose
Helps stop our site crashing by spreading traffic across web servers. |
How long it lasts
Until you close the browser |
|
Name
ASP.NET_SessionId |
Purpose
Remembers your pages input and states across multiple pages to improve your experience. |
How long it lasts
Until you close the browser |
|
Name
CAM |
Purpose
Helps stop our site crashing by spreading traffic across web servers. |
How long it lasts
Until you close the browser |
|
Name
CookieConsent |
Purpose
Remembers your cookies settings on our website. |
How long it lasts
1 year |
|
Name
csrftoken |
Purpose
Helps keep the site secure by preventing cross-site request forgery (CSRF) attacks. |
How long it lasts
1 year |
|
Name
mobile.display |
Purpose
Determines if you should see the mobile version of our site. |
How long it lasts
Until you close the browser |
|
Name
mobile.nodisplay |
Purpose
Determines if you should see the desktop version of our site. |
How long it lasts
Until you close the browser |
|
Name
nhsuk-cookie-consent |
Purpose
Remembers if you used our cookies banner. |
How long it lasts
Until you close the browser (if you do not use the banner) or 1 year (if you use the banner) |
|
Name
test |
Purpose
Used to tell us if you have accepted cookies to help with health campaigns. |
How long it lasts
Until you close the browser |
|
Name
WFE |
Purpose
Keeps you connected to a web server when you use our website. |
How long it lasts
Until you close the browser |
|
Name
.AspNetCore.Mvc.CookieTempDataProvider |
Purpose
Remembers details from your session across different pages, so you do not need to enter them again. |
How long it lasts
Until you close the browser |