Urgent: 'What is my City Name' tool showing wildly inaccurate IP geolocation accuracy for users!

We just launched our 'What is my City Name' web tool, and while the initial feedback on the concept was great, we're now facing a massive, incredibly frustrating problem that's driving us absolutely crazy. We're getting a flood of user complaints, literally daily, about the tool's extremely poor IP geolocation accuracy. It's often displaying the completely wrong city, state, or even an entirely different country for users, which, as you can imagine, completely defeats the purpose of a tool named 'What is my City Name'. This isn't just a minor glitch; it's a fundamental flaw that's making the tool almost unusable for a significant portion of our audience, and honestly, it's making us look pretty bad.

The issue seems especially bad with mobile users and anyone connecting through VPNs or proxies. Instead of showing their actual, physical city, the tool frequently points to their ISP's datacenter location, sometimes hundreds of miles away. We've spent countless hours trying to troubleshoot this, integrating different IP lookup APIs, cross-referencing with every GeoIP database we can find, and meticulously checking our server configurations, but absolutely nothing has consistently improved the IP geolocation accuracy. We're completely stuck and honestly, running out of ideas here. Has anyone faced this before? We're desperately seeking advice from anyone who has tackled similar IP geolocation accuracy challenges with their web tools and managed to find a reliable solution.