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I was doing some testing in PostHog that involves IP addresses, and noticed that my location was indicated as San Francisco (when it should be New York).

Some events on PostHog also had an IP address that was not my own. (There are at least 2 other IPs besides my own home address). I would also be surprised if these were "hops" on my ISP because I would assume that based on my physical location, I would be connected to a server in N. Virginia or similar.

No proxies or VPNs that I know of are configured on my network.

There is an edge case in which because there's a variable amount of subdivision information for a given IP/country, GeoIP data is stored inconsistently. Given that we only override GeoIP attributes if there are new attributes, consider this very typical flow:

1. User connects from the US (where at least subdivision 1 is available).
2. User connects from KE (where no subdivision information is available).

The user will then have a profile that looks like this, which is wrong:

• Country Name: Kenya
• City Name: Nairobi
• Subdivision 1 Code: VA
• Subdivision 1 Name: Virginia

We should probably override all GeoIP attributes when the country/city changes.

I've got segment as a library sending events into PostHog, but not all libraries within segment are created equal and server events are firing with fixed American IP address (we're in Australia), giving me questionable data in PostHog.

I'd like to enable GeoIP for strictly either a fixed set of events, or a sub-library of segment. Maybe if PostHog ingested Segment library as an object then I could enable client, and drop server.

In general this plugin is fantastic but somewhat unusable if half of the sources are getting 'wrong' information.

Due to the GDPR I use the setting "Discard client IP data". However, I am not getting any results from the plugin.

Not sure if it would be possible to discard the client IP after the plugin fetched the geoip?

Would be nice to set these properties on the user as well as on events (at least country/city etc) so you can create cohorts based on location.

It would be great if we can opt-out of GeoIP classification on an as-needed basis. In our use case, we record some events from the browser side (Posthog JS) and some events from our server side (Posthog Ruby). All server-side events end up appearing from Ashburn, Virginia (eg: AWS us-east-1) and we are unable to prevent the data from being tainted for the Person profiles. I think it would be great if the following could be added:

• Guard clause to skip GeoIP lookup if the $geoip_enabled event property is set to false $geoip_disable event property is set to true.
• Attempt to lookup the IP to geolocate based on the $ip property and fallback to event.ip if IP address is not explicitly set.

Hi PostHog team,

I am the DevRel of IPinfo, an IP data company. I have some experience with Posthog and tried to implement the feature myself, but I think the scale is just too big.

We have users who have reached out to us about using IPinfo MMDB databases in an analytics platform. The problem is that we do not have any off-the-shelf solutions to support this request. We would like to request that Posthog support the MMDB reader functionality and data update mechanism as a solution for IPinfo.

Our database is in MMDB format and is tabular in nature. While the existing provider's data is unpredictable and nested in nature, our data is tabular with a clear structure. We return an empty string when a value is not present. The MMDB reader library will work perfectly with our data. Additionally, our data can be updated via the storage URI, which accepts the access token as a parameter.

Users requested database support for:

• IP to Country ASN database (Free)
• IP to Geolocation database
• IP to Privacy Detection Database

If you can cover only one database, we can reuse the code to write for the rest of our databases.

The documentation of the IP databases is available here:

• https://ipinfo.io/developers/database-types
• https://ipinfo.io/developers/database-download
• https://ipinfo.io/developers/database-filename-reference

You can find the sample MMDB databases here: https://github.com/ipinfo/sample-database

Please let me know what you think. Thank you.