Don’t forget you may need to also allowlist egress IPs for your Connectivity
Region.
localhost
on ports 3000, 3001, 3002, 6700, 8080
allowlisted already.
To add a allowlist rule, go to the Domain Allowlisting section of the settings
page. There’ll you’ll see a list of all the rules your team has added, as well
as both a button to add more rules and a text input field that you can use to
test a url against your rules.

-
Explo’s allowlist supports both hardcoded domains and domains that use an
asterisk (*) as a wildcard
- https://testing.explo.co and https://*.explo.co will both allowlist https://testing.explo.co, but the second rule would also allowlist https://staging.explo.co
-
A wildcard only applies to a single subdomain (the portion of a url between
two periods)
- https://*.*.explo.co would allowlist https://site.testing.explo.co, but https://*.explo.co would not
-
Wildcards can also be mixed with hardcoded text within a subdomain
- https://explo-*.co allowlists https://explo-testing.co and https://explo-staging.co
-
The www is not required for the allowlist rules
- https://explo.co allowlists both https://www.explo.co and https://explo.co
- You must include a protocol (http or https) in your allowlist rule, and this cannot be wildcarded
If you want to allowlist ALL domains to view your dashboards, you can add * as
a rule