Laboratory Latency & DX Tracker

Standardized developer experience benchmarks tested under identical sandbox scripts. Track response latency, frame rates, and activation bottlenecks.

SMTP Transaction Delivery Latency

Time in milliseconds from transactional HTTP payload call to target inbox arrival. Tested globally across 5 network nodes. Lower is better.

MailRelay
142 ms
Postmark
130 ms
SendGrid
395 ms
Mailgun
298 ms

Testing Impartiality Policy: Tests are run automatically twice a week. We hook up standard test suites inside identical virtualization clusters, using identical API keys and credentials, to preserve objective comparative results.