Cookies
Contents
1. What cookies are
A cookie is a small file a website stores in your browser so it can remember something between pages or between visits. Some are essential: without them you could not stay signed in. Others are optional, such as those that measure how a site is used. We only set optional cookies if you accept them.
2. Your choice
On your first visit we ask whether you accept cookies. Accepting and rejecting carry equal weight, and rejecting changes nothing about what you can read or do on this site.
You can change your answer at any time from “Cookie settings” at the foot of every page. We ask again after six months.
3. Essential cookies
These are set whatever you choose, because the site cannot work without them.
| Cookie | What it does | How long |
|---|---|---|
| murray_consent | Remembers whether you accepted or rejected cookies. | 6 months |
| __session | Keeps you signed in to The Murray Lab or the Fully Managed Service. Its contents are encrypted. A large session is split across __session__0, __session__1 and so on. | 30 days |
| __txn_ followed by a code | Protects the sign-in process from forgery while you sign in. | 1 hour |
| murray-sector | Murray staff only: remembers which sector’s view a member of staff is previewing. | 1 year |
Our sign-in page, auth.murrayuniforms.com, is run for us by Auth0, which sets its own essential cookies there to keep sign-in secure.
4. Analytics cookies, only if you accept
If you accept cookies, we use Google Analytics and Microsoft Clarity to see which pages people read, how they found us and where a page gets in their way. Clarity also records how you move, click and scroll on a page. If you reject cookies, neither loads. If you accept and later reject, we remove these cookies.
| Cookie | Set by | What it does | How long |
|---|---|---|---|
| _ga | Google Analytics | Tells one visitor apart from another. | 2 years |
| _ga_ followed by a code | Google Analytics | Keeps track of your current visit. | 2 years |
| _clck | Microsoft Clarity | Recognises a returning visitor. | 1 year |
| _clsk | Microsoft Clarity | Joins the pages you view into one visit. | 1 day |
We also count visits with Cloudflare Web Analytics. It sets no cookies and keeps nothing in your browser, so it runs whether or not you accept. It tells us how many people read each page, not who they are.
5. Other things kept in your browser
A few settings are kept in your browser’s own storage rather than in cookies. They are never sent to us, and we cannot read them.
| Name | What it does | How long |
|---|---|---|
| murray-language-prompt | Remembers that you closed the offer to read a page in your own language. | Until you clear your browser’s storage |
| murray-lab-tour-done | Remembers that you have seen the tour of The Murray Lab. | Until you clear your browser’s storage |
| murray-lab-news-seen | Remembers when you last opened “What’s new” in The Murray Lab, so new items stand out. | Until you clear your browser’s storage |
| murray-lab:last-pillar | Takes you back to the part of The Murray Lab you came from. | Until you close the tab |
6. Videos
Our videos are hosted by Vimeo and Wistia. When a page with a video loads, your browser connects to them, which gives them your IP address and browser details. We switch tracking off on both, so neither sets tracking cookies. The case study films from Wistia only load when you press play.
7. Managing cookies in your browser
Every major browser lets you see, block and delete cookies in its settings. Blocking essential cookies will stop you signing in. To find out more, visit aboutcookies.org.