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Our website puts small files (known as ‘cookies’) onto your computer to make the site work properly and collect information about how it is used.

Cookies are used to:

  • Remember settings, so you don't have to keep re-entering them whenever you visit a new page
  • Help protect against hackers impersonating you on a website
  • Remember information you've given (eg form fields you've filled in) so you don't need to keep entering it
  • Measure how people use the website so we can make sure it meets your needs.

Our cookies are not used to identify you personally. To learn more about cookies and how to manage them, visit

Cookies set by the HESA website

We use first-party session identifier cookies that are essential for the security and operation of the website. The content of these cookies is only available to the HESA website.

We also use the following cookies on

Name Purpose
_ga Analytics cookie used to distinguish users. Tells us if you’ve visited before, so we can count how many of our visitors are new to or to a certain page
_gat Keeps the analytics software working by preventing too many requests to the analytics servers.
_cfduid Set by web security provider. Essential for site security operations.

Pardot Cookies

HESA uses Pardot to manage email marketing and this includes the use of cookies.
Pardot sets first-party cookies for tracking purposes, and sets third-party cookies for redundancy, which is a standard practice in email automation.
Pardot cookies don’t store personally identifying information, only a unique identifier.
Pardot sets first-party cookies on your tracker subdomains and Pardot domains.
Pardot uses third-party cookies on https pages and when your account doesn’t have a tracker subdomain set up.
If directed to a Pardot site you will receive a message that asks you to opt in on your first visit. This message won’t appear again unless you clear your cookies.
Read more about Pardot’s Cookie and Activity Tracking Policy.