HTTP Dog vs RescueGroups

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

Uptime · 30d
Uptime · 90d100%97.1%
Uptime · 30d100%98.3%
P50 · ms57700
P95 · ms3642516
Authnonenone
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

HTTP Dog vs RescueGroups: common questions

Which is more reliable, HTTP Dog or RescueGroups?

On our scheduled checks, HTTP Dog leads on measured uptime — HTTP Dog at 100% versus RescueGroups at 97.1% 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, HTTP Dog or RescueGroups?

HTTP Dog has the lower median latency in our checks — HTTP Dog responds in 57 ms versus RescueGroups at 700 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 HTTP Dog and RescueGroups need an API key?

Neither needs a paid key — HTTP Dog is callable with no signup, and RescueGroups is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call HTTP Dog and RescueGroups from the browser?

Neither sends browser-friendly CORS headers reliably, so call HTTP Dog and RescueGroups from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are HTTP Dog and RescueGroups free for commercial use?

HTTP Dog has unclear commercial terms, and RescueGroups 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.