HelloSalut vs OpenPLZ API
Same instrument, two spec sheets — measured, not claimed.
HelloSalut vs OpenPLZ API: common questions
Which is more reliable, HelloSalut or OpenPLZ API?
On our scheduled checks, OpenPLZ API leads on measured uptime — HelloSalut at 95.1% versus OpenPLZ API 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, HelloSalut or OpenPLZ API?
OpenPLZ API has the lower median latency in our checks — HelloSalut responds in 2362 ms versus OpenPLZ API at 561 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 HelloSalut and OpenPLZ API need an API key?
Neither needs a paid key — HelloSalut is callable with no signup, and OpenPLZ API is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call HelloSalut and OpenPLZ API from the browser?
Yes — both HelloSalut and OpenPLZ API send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.
Are HelloSalut and OpenPLZ API free for commercial use?
HelloSalut has unclear commercial terms, and OpenPLZ API 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.