Reliability Showdown

Slack vs SendGrid Reliability Comparison

Slack

✅ Operational

All Systems Operational

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SendGrid

🟡 Degraded

We have observed a recovery in voice calls from a subset of Twilio Phone Numbers to network subscribers in Hong Kong and are monitoring service stability. We will provide another update in 24 hours or as soon as more information becomes available.

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Reliability KPIs

Metric	Slack	SendGrid
90-Day Uptime %	100.000% 🏆	98.389%
MTTR	62m	49m 🏆
Incidents/Mo	6.7 🏆	8

The Verdict

Based on historical logs from the past 90 days, Slack is statistically more reliable, achieving an uptime of 100.000% compared to SendGrid's 98.389%.