HackMyIP vs IPWhois
Same instrument, two spec sheets — measured, not claimed.
HackMyIP vs IPWhois: common questions
Which is more reliable, HackMyIP or IPWhois?
Both are neck-and-neck — HackMyIP and IPWhois each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.
Which is faster, HackMyIP or IPWhois?
IPWhois has the lower median latency in our checks — HackMyIP responds in 157 ms versus IPWhois at 23 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 HackMyIP and IPWhois need an API key?
HackMyIP needs no key, while IPWhois requires a free API key. If you want to start calling without signup, reach for HackMyIP first.
Can I call HackMyIP and IPWhois from the browser?
Only HackMyIP is browser-friendly — it returns CORS headers over HTTPS. IPWhois needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are HackMyIP and IPWhois free for commercial use?
HackMyIP allows commercial use on its free tier, and IPWhois 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.