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Browshot vs MailboxValidator Free Email Checker

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

APIBrowshotNEW—MailboxValidator Free Email CheckerNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Browshot vs MailboxValidator Free Email Checker: common questions

Which is more reliable, Browshot or MailboxValidator Free Email Checker?

On our scheduled checks, MailboxValidator Free Email Checker leads on measured uptime — Browshot at —% versus MailboxValidator Free Email Checker at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do Browshot and MailboxValidator Free Email Checker need an API key?

Both ask you to authenticate — Browshot uses an API key and MailboxValidator Free Email Checker uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call Browshot and MailboxValidator Free Email Checker from the browser?

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

Are Browshot and MailboxValidator Free Email Checker free for commercial use?

Browshot has unclear commercial terms, and MailboxValidator Free Email Checker 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.