In case UserAgent shows an old browser, show message and offer to go to site: https://browsehappy.com/ and download a modern browser. Source: about 1 year ago

We actually did do something like this years ago when IE conditional comments were still a thing. We showed a small banner - similar to the cookie consent banners that now plague the web - that contained a message and a link to Browse Happy. Source: about 3 years ago

Ipstack - Locate and identify Website Visitors by IP Address. - Source: dev.to / 4 months ago

Looking to enhance your website or application with location-based services? Look no further! ipstack's Geo Lookup API is the perfect solution for seamless and accurate geolocation data retrieval. With this Free Geo IP API, you can easily obtain vital information about your users or customers, such as their country, city, latitude, longitude, time zone, and more. ipstack's API is renowned for its reliability and... Source: 10 months ago

Not really their fault. I think they mostly use https://ipstack.com/ for IP Geolocation API - their support is not the best when it comes to updating IP info. Source: 11 months ago

I had to contact https://ipstack.com/ / http://co.apilayer.net/ 5 or 6 times until they corrected the database, and Azure Sign-in logs started showing the correct details. Source: over 1 year ago

There's even a free API: https://ipstack.com/ Does seem to be less accurate than the source mylocation.org uses, as ipstack seems to think my ipv6 address is in Mons, while mylocation sees my ipv4 address as Leuven-area (which is correct). Source: over 1 year ago