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Provider API benchmarks

Real-time performance data for email, SMS, and push APIs, powered by proprietary data from billions of notifications sent through Knock.

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Email API benchmarks

Compare response time, reliability, and pricing across 10 providers.

Fastest providers
  • 1SendGrid
    15ms
  • 2Postmark
    60ms
  • 3Mailtrap
    81ms
And 7 more
MailgunAmazon SESResendMandrillMailerSendSparkpost+1

SMS API benchmarks

Compare response time, reliability, and pricing across 7 providers.

Fastest providers
  • 1Amazon SNS
    81ms
  • 2Twilio
    119ms
  • 3MessageBird
    248ms
And 4 more
MessageMediaTelnyxWhatsAppAfrica's Talking

Push API benchmarks

Compare response time, reliability, and pricing across 4 providers.

Fastest providers
  • 1Apple Push (APNS)
    64ms
  • 2Expo
    71ms
  • 3Firebase FCM
    111ms
And 1 more
OneSignal