Country IP lookup not working

I understand completely how frustrating inconsistent geolocation data can be. I've been down that rabbit hole myself with campaign targeting, and it's enough to make you pull your hair out when a fundamental tool like this goes sideways. Before we dive deeper, just a quick heads-up: it's "a lot," not "alot." Happens to the best of us when we're deep in debugging!

Given that you've already checked your primary and backup API providers (ip-api, MaxMind GeoIP2) and found no issues with their status or your rate limits, and even reviewed server logs without obvious errors, the problem often lies in the IP address your server is actually detecting and passing to these APIs, rather than the APIs themselves or your client-side setup.

Here’s a structured approach to diagnose this kind of IP address lookup inconsistency, especially when you're seeing wildly different results:

1. Verify the Captured IP on Your Server:
   • Proxy/CDN Interference: This is the most common culprit for sudden shifts in perceived location. If your server is behind a proxy, load balancer, or a Content Delivery Network (CDN) like Cloudflare, it might be receiving the IP address of the proxy/CDN server itself, not the end-user's actual IP.
   • Check HTTP Headers: You need to ensure your backend code is correctly extracting the user's IP from the appropriate HTTP header. Look for headers like X-Forwarded-For, CF-Connecting-IP (if using Cloudflare), or X-Real-IP. Your current code might be defaulting to REMOTE_ADDR, which would show the proxy's IP. Implement logging on your server to explicitly record the value of these headers for each request before you pass them to your geolocation API. This will tell you exactly what IP your server thinks it's looking up.
2. API Request Verification:
   • Once you're confident you're capturing the correct user IP on your server, double-check how that IP is being formatted and sent to ip-api and MaxMind GeoIP2. Ensure there are no encoding issues or accidental truncations. Log the exact API request (including the IP being sent) and the raw response you receive from the geolocation service. This will confirm if the API is indeed returning incorrect data for the IP it was given.
3. Client-Side IP vs. Server-Side IP:
   • When you're testing from various devices and VPNs, consider the difference between what your browser sees as its IP (which you can verify using a tool like What is my IP Address or alternatives like IPinfo.io, WhatIsMyIP.com) and what your server logs. The VPN scenario is particularly telling: if your tool shows you in a different continent while using a VPN, but other IP lookup tools correctly identify the VPN's exit node, it strongly points back to your server not capturing the correct originating IP.
4. Geolocation Accuracy Limitations:
   • While less likely for "wildly off" results, remember that geolocation accuracy can vary, especially for mobile IPs, satellite internet, or residential IPs that are frequently reallocated. However, your description of it being "completely off" suggests a more fundamental issue than typical database discrepancies.
5. Alternative Geolocation Providers for Sanity Check:
   • Even though you've tried two, if you can, quickly integrate a third, well-regarded provider like IPinfo.io or AbstractAPI just to run a few comparative tests with the same problematic IPs you've identified. This can sometimes highlight if there's a specific range of IPs that both your current providers are misidentifying, or if it's truly an issue with your setup.

My strong suspicion is that your server's environment or configuration has changed, leading it to misinterpret the true source IP from incoming requests. Focus on what IP address your backend code is actually receiving and then sending to your geolocation APIs. That's usually where these "suddenly off" issues stem from.

Hope this helps your conversions!

This thread's already been so valuable, really hope it stays visible for others who hit similar issues...