Regex for TLD Blocks

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I've been working for a little while to get a regex crafted that works to block identified Top Level Domains via the App/URL blade and so wanted to share my results. This could also easily be modified via a NOT and optional list of domains that you want to allow instead of domains you want to block.

Just replace TLD with a domain you want to match.

^[^:\/]+:\/?\/?[^\/]+\.TLD\/

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So far I have found this to be more effective.

(?:[a-zA-Z]*\.)+(TLD)[/|\s]