Cookies are turned on by default in Safari, but you can check and change the setting in a few taps
Safari on iPhone accepts cookies automatically when you first set up the phone. If you have turned them off or suspect they are disabled, you can turn them back on through Settings. Open Settings, scroll down and tap Safari, then look for "Block All Cookies" — if that toggle is on (green), cookies are blocked. Tap it to turn it off, and cookies will be accepted again.
Most websites need cookies to work properly. Without them, you may not be able to stay logged into accounts, keep items in a shopping cart, or see personalized content. If a website is not working the way you expect, blocked cookies are often the reason.
Key Takeaways
- Cookies are on by default in Safari on iPhone unless you have manually turned on "Block All Cookies" in Settings.
- To enable cookies, open Settings, tap Safari, and make sure the "Block All Cookies" toggle is off (gray).
- Websites use cookies to remember you, keep you logged in, and store your preferences — many sites will not work without them.
- If you want more control, Safari also lets you block cookies from third-party websites only, which is a middle ground between full access and full blocking.
Where to find the cookie setting in Settings
On your iPhone, open the Settings app (the gray gear icon on your home screen). Scroll down the list until you see Safari — it has a compass icon next to it. Tap Safari to open its settings page.
Once you are in Safari settings, look for a section called "Privacy & Security." Scroll down in that section until you see "Block All Cookies." If the toggle next to it is green (on), cookies are currently blocked. Tap the toggle to turn it gray (off), and Safari will start accepting cookies from websites you visit.
What "Block All Cookies" actually does
When "Block All Cookies" is turned on, Safari refuses to store any cookies from any website. This means websites cannot remember you between visits, cannot keep you logged in, and cannot store your preferences like language or font size.
Turning this setting on does not make you anonymous or invisible online — it only prevents websites from storing small files on your phone. Websites can still see your IP address and track you through other methods. The main effect is that websites become harder to use because they lose the ability to remember who you are.
The middle ground: blocking only third-party cookies
Safari offers a second option that many people find more useful than blocking all cookies. Instead of the "Block All Cookies" toggle, you can choose "Block All Cookies" off and leave the default setting, which blocks only third-party cookies — cookies from advertisers and tracking companies, not from the website itself.
To use this approach, make sure "Block All Cookies" is off. Then look for "Prevent Cross-Site Tracking" in the same Privacy & Security section — this toggle should be on (green). This setting lets websites you visit store cookies so they work properly, but stops advertisers and data brokers from tracking you across multiple sites.
Why a website might not work even with cookies on
If you have turned cookies on but a website still will not let you log in or is not working correctly, the problem might not be cookies. Some websites require JavaScript to be enabled, or they may not work well in Safari on older iPhone models.
Try closing Safari completely and opening it again. If that does not help, try the same website in a different browser like Chrome or Firefox — if it works there, the problem is specific to Safari. You can also try clearing your Safari history and cache: go to Settings > Safari > Clear History and Website Data, then try the website again.
When you might want to block all cookies
Blocking all cookies is rarely necessary for security reasons, because cookies themselves cannot install malware or steal passwords. However, some people block them for privacy — if you do not want websites to remember your activity, blocking all cookies will prevent that.
The trade-off is that websites become much less convenient to use. You will be logged out every time you close Safari, you will have to re-enter preferences on every visit, and shopping carts will empty. For most people, blocking only third-party cookies (the default setting) offers better privacy without breaking websites.
Cookies in private browsing mode
Safari has a Private Browsing mode that you can turn on by tapping the tabs icon (two overlapping squares) at the bottom of the screen, then tapping "Private" at the bottom left. In private browsing, Safari still accepts cookies while you are browsing, but deletes them all when you close the private tab.
This is useful if you want to browse without leaving a record on your phone, or if you want to log into multiple accounts on the same website at the same time. Private browsing does not hide your activity from your internet provider or from the websites you visit — it only clears cookies and history from your phone.
Frequently Asked Questions
Will turning on cookies make my iPhone less find?
No. Cookies are small text files that websites store on your phone — they cannot install viruses or steal passwords. The security risk from cookies is privacy-related, not safety-related. Websites can use cookies to track your behavior, but the cookies themselves are not dangerous.
Do I need to clear cookies regularly?
You do not need to clear cookies regularly for security reasons. Clearing them will log you out of websites and erase your preferences, which is inconvenient but not necessary. If a website is not working properly, clearing cookies for that site sometimes helps, but most people can leave them alone.
What is the difference between cookies and tracking?
Cookies are files that websites store on your phone. Tracking is what websites do with those files — they use cookies to remember what you clicked on, what you bought, and what you looked at. Blocking cookies stops websites from storing that information, but websites can still track you through other methods like your IP address.
If I turn off cookies, will websites think I am a bot?
No. Websites may ask you to log in more often or may not remember your preferences, but they will not block you for not accepting cookies. Some websites require cookies to function, so you may not be able to use them, but you will not be flagged as suspicious.
Can I turn cookies on for some websites and off for others?
Safari does not have a per-website cookie setting on iPhone. Your cookie setting applies to all websites. If you need cookies on for one site and off for another, you would need to change the setting in Settings each time, or use a different browser for each site.