Add geoip fallback

[jsdelivr]

Add geoip fallback

[jimaek]

Actually after some tests all of them seem very wrong all the time. And only ipinfo.io is consistently correct.
Given how important it is for us to have accurate IP data how about we use ipinfo.io as main provider? @zarianec

[patrykcieszkowski]

How did you test it? Both APIs seem to return me similar results.

[jimaek]

Try this https://globalping-geoip.global.ssl.fastly.net/142.132.251.61

The difference is bigger on datacenter IPs. But I saw issues with home IPs too

[patrykcieszkowski]

Ok, I can see that now. Fastly is a bit less accurate, but still somewhat close from what I'm seeing. IPInfo does a better job.

8.9.31.242 - NJ, USA
195.7.2.58 - TX, USA
116.202.179.94 - Nuremberg, DE

[jimaek]

We agreed to use all 3 at the same time.
New logic:

• If maxmind and digital agree on the city then we use that city
• If maxmind and digital have different cities then we use ipinfo city
• We use lon/lat of the winning provider