IP Address Ranges
Nametag serves applications from multiple IPv4 and IPv6 address ranges, which are available at https://nametag.co/ip-ranges.json. You can retrieve a list of Nametag’s IP addresses with:
$ curl https://nametag.co/ip-ranges.json
Note: The list of Nametag IP addresses in this list is not intended to be an exhaustive list. For example, IP addresses for some Nametag services might not be listed.
These IP addresses are used by Nametag to serve our content, deliver webhooks, and perform other background tasks.
We make changes to our IP addresses from time to time. We do not recommend allowing by IP address, however if you use these IP ranges we strongly encourage regular monitoring of this endpoint.
For applications to function, you must allow TCP port 443 via our IP ranges. Nametag makes outgoing requests, e.g. sending a webhook, exclusively to TCP port 443.
These ranges are in CIDR notation. You can use an online conversion tool to convert from CIDR notation to IP address ranges, for example: CIDR to IPv4 conversion site.