shipapis
StarSubmit an APISubmit API

ddownload vs RSQ API

Same instrument, two spec sheets — measured, not claimed.

APIddownloadREACHABLE100RSQ APIHEALTHY91
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms365783
P95 · ms7921387
AuthapiKeynone
CORSnoyes
HTTPSyesno
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ddownload vs RSQ API: common questions

Which is more reliable, ddownload or RSQ API?

Both are neck-and-neck — ddownload and RSQ API 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, ddownload or RSQ API?

ddownload has the lower median latency in our checks — ddownload responds in 365 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 ddownload and RSQ API need an API key?

RSQ API needs no key, while ddownload requires a free API key. If you want to start calling without signup, reach for RSQ API first.

Can I call ddownload and RSQ API from the browser?

Neither sends browser-friendly CORS headers reliably, so call ddownload 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 ddownload and RSQ API free for commercial use?

ddownload 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.