Disify vs Guerrilla Mail

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

Uptime · 30d
Uptime · 90d23.9%99.44%
Uptime · 30d20.0%100%
P50 · ms737185
P95 · ms16794899
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limit30 req/window · 21 remainingUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Disify vs Guerrilla Mail: common questions

Which is more reliable, Disify or Guerrilla Mail?

On our scheduled checks, Guerrilla Mail leads on measured uptime — Disify at 23.9% versus Guerrilla Mail at 99.44% 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, Disify or Guerrilla Mail?

Guerrilla Mail has the lower median latency in our checks — Disify responds in 737 ms versus Guerrilla Mail at 185 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 Disify and Guerrilla Mail need an API key?

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

Can I call Disify and Guerrilla Mail from the browser?

Only Guerrilla Mail is browser-friendly — it returns CORS headers over HTTPS. Disify needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Disify and Guerrilla Mail free for commercial use?

Disify has unclear commercial terms, and Guerrilla Mail 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.