Guerrilla Mail vs Hebrew Calendar

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

Uptime · 30d
Uptime · 90d95.1%100%
Uptime · 30d98.3%100%
P50 · ms298533
P95 · ms16852016
Authnonenone
CORSyesyes
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

Guerrilla Mail vs Hebrew Calendar: common questions

Which is more reliable, Guerrilla Mail or Hebrew Calendar?

On our scheduled checks, Hebrew Calendar leads on measured uptime — Guerrilla Mail at 95.1% versus Hebrew Calendar 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, Guerrilla Mail or Hebrew Calendar?

Guerrilla Mail has the lower median latency in our checks — Guerrilla Mail responds in 298 ms versus Hebrew Calendar at 533 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 Guerrilla Mail and Hebrew Calendar need an API key?

Neither needs a paid key — Guerrilla Mail is callable with no signup, and Hebrew Calendar is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Guerrilla Mail and Hebrew Calendar from the browser?

Yes — both Guerrilla Mail and Hebrew Calendar 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 Guerrilla Mail and Hebrew Calendar free for commercial use?

Guerrilla Mail has unclear commercial terms, and Hebrew Calendar 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.