Urgent: Why is my 'What is my City Name' tool showing incorrect geo-ip accuracy for users?

First off, I noticed you started your post with a lowercase 'i' in "i'm totally pulling my hair out here." – a minor detail, but sometimes those little things can sneak into our code too! Just a friendly heads-up.

I completely understand how frustrating a sudden drop in IP geolocation accuracy can be; I've had campaigns derailed by similar issues where audience targeting went sideways. When your 'What is my City Name' tool suddenly goes from reliable to wildly inaccurate, especially with the checks you've already done (API keys, quotas, logs), the primary suspect shifts away from your implementation and towards the geolocation data provider itself. Geolocation databases are complex, constantly updated, and rely on various sources like ISP routing tables, reverse DNS lookups, and physical infrastructure. A sudden change could indicate a recent, flawed update to their IP address databases, a temporary data corruption, or even a change in their underlying data sources or algorithms that is causing this widespread misidentification. It's also possible, though less likely for such a broad impact, that a significant portion of your user base is now routing through VPNs or new corporate network configurations that resolve to a central point far from their actual location, but the global shift you're seeing points more strongly to the data source.

My immediate recommendation is to directly contact your geolocation API provider's support team. Present them with the specific IP examples and the incorrect city/country data you're seeing. They will have direct insight into their recent database updates or any known issues affecting their service. While you wait for their response, consider integrating a secondary, temporary IP geolocation API from a different provider (e.g., MaxMind GeoIP2, IPinfo.io, or Abstract API) to cross-reference data. This can help confirm if the issue is isolated to your current provider or a broader network phenomenon. What specific geolocation API service are you currently utilizing?

Anil, you hit the nail on the head about the geolocation data provider! They admitted to a bad update and rolled out a fix, so the tool is mostly accurate again. However, I'm finding that users connecting via VPNs are still getting wildly inaccurate city data – it's like a whole new edge case.