Cwcis ar ons.gov.uk

Ffeiliau bach a gaiff eu storio ar eich dyfais pan fyddwch yn mynd ar wefan yw cwcis. Rydym ni’n defnyddio rhai cwcis hanfodol i wneud i’r wefan hon weithio.

Hoffem osod cwcis ychwanegol er mwyn cofio eich gosodiadau a deall sut rydych chi’n defnyddio’r wefan. Mae hyn yn ein helpu ni i wella ein gwasanaethau.

Gweld cwcis

Rydych chi wedi derbyn yr holl gwcis ychwanegol. Rydych chi wedi gwrthod yr holl gwcis ychwanegol. Gallwch chi "newid eich dewisiadau o ran cwcis ar unrhyw adeg.

Skip to main content

Nid yw’r wefan hon yn cefnogi eich porwr mwyach. Gallwch ddiweddaru eich porwr i’r fersiwn ddiweddaraf.

Beta

Mae hwn yn wasanaeth newydd.

Announcement:
Nid yw’r dudalen hon ar gael yn y Gymraeg ar hyn o bryd. Fe’i harddangosir yn ei hiaith wreiddiol.

Cookies on ons.gov.uk

Cookies are files saved on your phone, tablet or computer when you visit a website.

We use cookies to collect and store information about how you use the ONS website, such as the pages you visit.

This page has a brief explanation of each type of cookie we use. If you want more details, read our detailed cookie information.

Cookie settings

We use JavaScript to set our cookies. Javascript is not running on your browser so you cannot change your settings.

You can try:

  • turning on JavaScript in your browser
  • reloading the page in case there was a temporary fault with JavaScript

We use four types of cookie. You can choose which cookies you’re happy for us to use.

You can change your settings at any time by returning to this page.

Cookies that measure website use

We use Google Analytics and Hotjar cookies to measure how you use the website.

These cookies collect information about:

  • how you got to the site
  • the pages you visit and how long you spend on each page
  • what you click on while you are visiting the site
  • the way in which you interact with a page
  • whether you have participated in a Hotjar survey

We do not allow Google or Hotjar to use or share this data for their own purposes.

Do you want to allow cookies that measure website use?

Cookies that help with our communications and marketing

These cookies may be set by third-party websites, like YouTube and Vimeo. They do things like measure how you view YouTube videos that are on the ONS website.

Do you want to allow cookies that help with our communications and marketing?

Cookies that remember your settings

These cookies do things like remember your preferences and the choices you make, to personalise your experience of using the site.

We currently do not use these cookies but do store your choice to accept or reject them. You can change your selection at any time.

Do you want to allow cookies that remember your settings?

Strictly necessary cookies

These essential cookies do things like:

  • remember your cookies settings and the notifications you’ve seen so we do not show them to you again
  • remember your progress through a form (for example, an ONS study)
  • improve performance and identify potential security threats

They always need to be on.

Back to top