How To Close All Open Pages On Iphone

Use tabs in Safari on iPhone

In the Safari app , use tabs to help you navigate between multiple open webpages.

Touch and hold the link, then tap Open in New Tab.

To stay on the current tab whenever you open a link in a new tab, go to Settings > Safari > Open Links, then tap In Background.

To look through the webpages you have open, tap , then do any of the following:

Tap , touch and hold , then choose from the list of recently closed tabs.

Create a Tab Group to keep tabs organized and make them easier to return to later.

Tip: To move between your Tab Groups, tap in the bottom center of the screen.

Sign in with your Apple ID on all your devices.
Go to Settings > [your name] > iCloud, then turn on Safari.

Note: To also see tabs open on your Mac, you must have Safari selected in iCloud preferences on your Mac, be signed in with the same Apple ID, and have two-factor authentication turned on for iCloud. See Set up iCloud on all your devices in the iCloud User Guide and the Apple Support article Two-factor authentication for Apple ID.

On any open page, touch and hold , then tap Close All Tabs.

You can also close your tabs from the Tab Overview Screen. Touch and hold Done, then tap Close All Tabs.

Source: https://support.apple.com/guide/iphone/use-tabs-in-safari-iph3028ebf68/ios