## Is your feature request related to a problem?

*Please describe.*

A user has thousands of URLs matching `*.blahblah.com` (for example), and are only able to add a few dozen by hand. It would be nice for them if they could wildcard those domains or to not have to whitelist domains at all. Their primary concern was that session recordings for these domains would not be retrievable unless they were added to the permitted URLs list (and also session recordings before adding it to the domain would be irretrievable) 

<img width="1275" alt="Screen Shot 2021-10-19 at 9 23 48 AM" src="https://user-images.githubusercontent.com/25164963/137918568-ecc72abd-be6b-410c-84d9-63870b19d2f8.png">

## Describe the solution you'd like

A way to make it easier to apply similar domains together

## Describe alternatives you've considered

## Additional context



#### *Thank you* for your feature request – we love each and every one!

posthog/api/test/test_decide.py
)  
        ff_3 = FeatureFlag.objects.create(
            team=self.team,
            filters={
                "groups": [{"properties": [], "rollout_percentage": None}],
                "multivariate": {
                    "variants": [
                        {"key": "first-variant", "name": "First Variant", "rollout_percentage": 100},
                        {"key": "second-variant", "name": "Second Variant", "rollout_percentage": 0},
                        {"key": "third-variant", "name": "Third Variant", "rollout_percentage": 0},
                    ],
                },
            },
            name="This is a multi var feature flag that gets overriden.",
            key="multivariate-flag-overridden",
            created_by=self.user,
        )  
        FeatureFlag.objects.create(
            team=self.team,
            filters={
                "groups": [{"properties": [], "rollout_percentage": None}],
                "multivariate": {
                    "variants": [
                        {"key": "first-variant", "name": "First Variant", "rollout_percentage": 0},
                        {"key": "second-variant", "name": "Second Variant", "rollout_percentage": 100},
                        {"key": "third-variant", "name": "Third Variant", "rollout_percentage": 0},
                    ],
                },
            },
            name="This is a multi var feature flag that doens't get overriden.",