Slack vs Twilio / SendGrid

Reliability comparison based on uptime, incident history, and mean time to recovery. Updated daily.

Slack
Twilio / SendGrid
Current Status Operational Best Degraded
Uptime (30d) 94.691% Best 49.345%
Uptime (90d) 96.223% Best 35.659%
MTTR 7.7 hrs Best 81.4 hrs
Incidents (30d) 9 Best 303
Incidents (90d) 17 Best 566
Reliability Score 47.9/100 Best 19.8/100

Recent Incidents

Twilio / SendGrid SMS Delivery Delays from Twilio to Multiple Networks in Colombia
minor · Invalid Date — May 16, 2026
Resolved
minor
Twilio / SendGrid SMS Delivery Delays from Twilio to Multiple Networks in Colombia
minor · Invalid Date — May 16, 2026
Resolved
minor
Twilio / SendGrid SMS Delivery Delays from a Subset of Twilio Long Codes and Short Codes to Multiple Networks in Colombia
minor · Invalid Date — May 16, 2026
Resolved
minor
Twilio / SendGrid SMS Delivery Delays From a Subset of Twilio Long Codes and Short Codes to Multiple Networks in Colombia
minor · Invalid Date
identified
minor
Twilio / SendGrid User Authentication Identity Gateway API High Latency in Multiple Countries
minor · Invalid Date — May 16, 2026
Resolved
minor
Twilio / SendGrid Subset of AU Sender ID Registration Submissions Directly Transitioning to REJECTED
minor · Invalid Date
identified
minor
Twilio / SendGrid SMS Delivery Delays and Failures from Twilio Phone Numbers to Multiple Networks in Multiple Countries in Europe
minor · Invalid Date — May 15, 2026
Resolved
minor
Twilio / SendGrid SMS Delivery Delays and Failures from Twilio to Multiple Networks in Italy
minor · Invalid Date — May 15, 2026
Resolved
minor
Twilio / SendGrid SMS Delivery Delays and Failures from Twilio Phone Numbers to Multiple Networks in Italy
minor · Invalid Date — May 15, 2026
Resolved
minor
Twilio / SendGrid SMS Delivery Delays and Failures from Twilio to Multiple Networks in Italy
minor · Invalid Date — May 15, 2026
Resolved
minor
Twilio / SendGrid SMS Delivery Delays and Failures from Twilio Phone Numbers to Multiple Networks in Italy
minor · Invalid Date — May 16, 2026
Resolved
minor
Twilio / SendGrid SMS Delivery Delays and Failures Between Twilio Phone Numbers and Multiple Networks in Thailand
minor · Invalid Date — May 15, 2026
Resolved
minor
Twilio / SendGrid SMS Delivery Delays and Failures between Twilio Phone Numbers and Multiple Networks in Thailand
minor · Invalid Date — May 15, 2026
Resolved
minor
Twilio / SendGrid SMS Delivery Delays and Failures Between Twilio Phone Numbers and Multiple Networks in Thailand
minor · Invalid Date — May 15, 2026
Resolved
minor
Twilio / SendGrid SMS Delivery Delays and Failures from a Subset of Twilio Toll-Free Numbers to Multiple Networks in United States
minor · Invalid Date — May 15, 2026
Resolved
minor
Twilio / SendGrid Voice Call Audio Quality Degradation from a Subset of Twilio United States Phone Numbers to United States
minor · Invalid Date — May 15, 2026
Resolved
minor
Twilio / SendGrid Voice Call Audio Quality Degradation From a Subset of Twilio United States Phone Numbers to United States
minor · Invalid Date — May 15, 2026
Resolved
minor
Twilio / SendGrid Voice Call Audio Quality Degradation from a Subset of Twilio United States Phone Numbers to United States
minor · Invalid Date — May 15, 2026
Resolved
minor
Twilio / SendGrid SMS Delivery Failures from Twilio Phone Numbers to AT&T Mexico
minor · Invalid Date — May 14, 2026
Resolved
minor
Twilio / SendGrid SMS Delivery Failures between Twilio Phone Numbers and AT&T in Mexico
minor · Invalid Date — May 14, 2026
Resolved
minor

Frequently Asked Questions

Which is more reliable, Slack or Twilio / SendGrid?
Based on our monitoring data, Slack is currently more reliable than Twilio / SendGrid. Slack has a reliability score of 47.9/100 compared to Twilio / SendGrid's 19.8/100. This score factors in uptime percentage, mean time to recovery, incident frequency, and consistency. Monitor both services with Happy Uptime for real-time alerts.
Which has better uptime, Slack or Twilio / SendGrid?
Over the last 30 days, Slack has a higher uptime of 94.691% compared to Twilio / SendGrid's 49.345%. We check both services every 5 minutes from multiple global regions.
Is Slack more stable than Twilio / SendGrid?
Slack has been more stable over the past 90 days with 17 incidents compared to Twilio / SendGrid's 566 incidents. Fewer incidents generally indicates a more stable service. Use Happy Uptime to track both services and get AI-powered incident analysis.

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