Recently many users have complained that they could not open links in Safari, Messages, Email and other apps on their iPhone/iPad running with iOS 9.3. Some users working with iOS 9.2.1 also have the same problem. Here are some workarounds you can try to fix this issue.
will not be available any more in Safari. Also, this only works for Safari where mail and messages are not included. If you are still not able to open links in Safari
on your device, you can try to also make the following setup on your iPhone/iPad: Settings > Safari > Open Links > Select Background
Similarly, this also works only for Safari, while Message and mail still freezes when you click on hyperlinks.
Force reboot your iPhone iPad
Hold the Power button and Home button together till the Apple logo appears to force reboot your iPhone/iPad. This might also help in fixing the issue.
Clear the history and cache of Safari.
To remove cache and history from Safari on your iPhone/iPad, Go to Settings > Safari > Advanced > Website Data > Remove All Website Data
Restart your browser and check if this resolves the problem.
Change your browser
Try by replacing Safari with other browser like Chrome, Firefox, etc.
Change your search engine
Change Search Engine from Google to Bing. This have worked for many users. To change the search engine
go to Settings > Safari > Search Engine > Select Bing
(the default selection is Google
Downgrade iOS 9.3 to iOS 9.2.1
After trying all these if the problem still remains, you can downgrade the iOS version to iOS 9.2.1.