[bb101]

It doesn't seem to be. MWB's location for me is much more accurate, I'm thinking Google?

[iruoy]

I think it's one of their paid versions[0] with a few addons[1][2].

[0] https://www.maxmind.com/en/geoip2-precision-city-service

[1] https://www.maxmind.com/en/geoip2-isp-database

[2] https://www.maxmind.com/en/geoip2-connection-type-database

[metalliqaz]

For me it's more accurate (in the correct state) but still off by a lot (several towns over)

[Jamie9912]

For me it returns the same result as Cloudflare, and they are using Maxmind