IP2Location vs PostalCodes
Same instrument, two spec sheets — measured, not claimed.
IP2Location vs PostalCodes: common questions
Which is more reliable, IP2Location or PostalCodes?
On our scheduled checks, IP2Location leads on measured uptime — IP2Location at 100% versus PostalCodes at 99.02% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Which is faster, IP2Location or PostalCodes?
IP2Location has the lower median latency in our checks — IP2Location responds in 131 ms versus PostalCodes at 1030 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.
Do IP2Location and PostalCodes need an API key?
PostalCodes needs no key, while IP2Location requires a free API key. If you want to start calling without signup, reach for PostalCodes first.
Can I call IP2Location and PostalCodes from the browser?
Neither sends browser-friendly CORS headers reliably, so call IP2Location and PostalCodes from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are IP2Location and PostalCodes free for commercial use?
IP2Location has unclear commercial terms, and PostalCodes has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.