You can choose to delete existing cookies, allow or block third-party cookies and set preferences for certain websites.
Important: If you’re part of the test group that limits third-party cookies by default, you may find different settings for managing third-party cookies. Learn how to manage third-party cookie settings for test group users.
What cookies are
Cookies are files created by websites that you visit. By saving information about your visit, they make your online experience easier. For example, sites can keep you signed in, remember your site preferences and give you locally relevant content.
There are two types of cookies:
- First-party cookies: Created by the site that you visit. The site is shown in the address bar.
- Third-party cookies: Created by other sites. A site that you visit can embed content from other sites – for example, images, ads and text. Any of these sites can use third-party cookies to personalise content and ads, and learn about actions that you take on other sites.
Tip: Some sites may prompt you to accept or reject cookies.
There are other ways that sites can personalise content and ads. Features like ad topics and site-suggested ads in Chrome allow sites to show you personalised content. These features limit what sites and their partners can learn about you. Learn more about managing these features.
Delete all cookies
If you remove cookies, you'll be signed out of websites and your saved preferences could be deleted.
- On your iPhone or iPad, open Chrome
.
- Tap More
Settings
.
- Tap Privacy and security
- Tick Cookies, site data.
- Untick the other items.
- Tap Delete browsing data
- Tap Done.
.
Settings 
.