Reliability Showdown

Slack vs Twilio Reliability Comparison

Slack

✅ Operational

All Systems Operational

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Twilio

🟡 Degraded

Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Alphanumeric and Long Codes to MTN network subscribers in Zambia. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.

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Reliability KPIs

Metric	Slack	Twilio
90-Day Uptime %	100.000% 🏆	96.278%
MTTR	62m	61m 🏆
Incidents/Mo	6.7	6.7

The Verdict

Based on historical logs from the past 90 days, Slack is statistically more reliable, achieving an uptime of 100.000% compared to Twilio's 96.278%.