DownStatus vs RSQ API
Same instrument, two spec sheets — measured, not claimed.
DownStatus vs RSQ API: common questions
Which is more reliable, DownStatus or RSQ API?
On our scheduled checks, RSQ API leads on measured uptime — DownStatus at 60.8% versus RSQ API at 100% 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, DownStatus or RSQ API?
DownStatus has the lower median latency in our checks — DownStatus responds in 589 ms versus RSQ API at 783 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 DownStatus and RSQ API need an API key?
Neither needs a paid key — DownStatus is callable with no signup, and RSQ API is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call DownStatus and RSQ API from the browser?
Neither sends browser-friendly CORS headers reliably, so call DownStatus and RSQ API from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are DownStatus and RSQ API free for commercial use?
DownStatus has unclear commercial terms, and RSQ 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.