Hi. Does this happen with all sites, e.g. apple.com, or only with certain sites?
If it's certain sites, could you identify one?
It's basically caused by an error in web coding. You open one URL, but the scripting for that URL sends you to another (maybe a mobile version). That URL then sends you to another, and eventually, you're redirected back to the first URL. The browsers are coded to quit after a certain number of redirects, to prevent them from looping forever. A site may work fine on other devices, but fail on iPad, because the servers base decisions on the browser identification they receive.
Clearing the History and Website Data may help, since it removes any leftover data that may be confusing the issue. If it doesn't help, the problem is likely a problem in the web servers. Requesting the desktop version might help.