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Footer Year Update vs Guerrilla Mail

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

APIFooter Year UpdateHEALTHY100Guerrilla MailHEALTHY92
Uptime · 30d
Uptime · 90d100%95.1%
Uptime · 30d100%98.3%
P50 · ms131298
P95 · ms3291685
Authnonenone
CORSnoyes
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

Footer Year Update vs Guerrilla Mail: common questions

Which is more reliable, Footer Year Update or Guerrilla Mail?

On our scheduled checks, Footer Year Update leads on measured uptime — Footer Year Update at 100% versus Guerrilla Mail at 95.1% 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, Footer Year Update or Guerrilla Mail?

Footer Year Update has the lower median latency in our checks — Footer Year Update responds in 131 ms versus Guerrilla Mail at 298 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 Footer Year Update and Guerrilla Mail need an API key?

Neither needs a paid key — Footer Year Update 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 Footer Year Update and Guerrilla Mail from the browser?

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

Are Footer Year Update and Guerrilla Mail free for commercial use?

Footer Year Update 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.