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) 96.380% Best 57.725%
Uptime (90d) 97.233% Best 34.822%
MTTR 2.8 hrs Best 124.6 hrs
Incidents (30d) 7 Best 214
Incidents (90d) 11 Best 359
Reliability Score 58.8/100 Best 22.1/100

Recent Incidents

Twilio / SendGrid SMS Delivery Delays from Twilio to Orange Cameroon
minor · Invalid Date
identified
minor
Twilio / SendGrid New Accounts Are Being Incorrectly Tagged With Legacy Whatsapp Account Flags
minor · Invalid Date — Apr 29, 2026
Resolved
none
Twilio / SendGrid New Accounts Are Being Incorrectly Identified as Legacy Whatsapp Account
minor · Invalid Date
investigating
none
Twilio / SendGrid Inbound Call Failures to a Subset of Twilio Sweden Phone Numbers
minor · Invalid Date — Apr 29, 2026
Resolved
minor
Twilio / SendGrid Voice Call Failures from Network Subscribers to Twilio Sweden Phone Numbers
minor · Invalid Date — Apr 29, 2026
Resolved
minor
Twilio / SendGrid Voice Call Failures from Sweden Network Subscribers to Twilio Sweden Numbers
minor · Invalid Date — Apr 29, 2026
Resolved
minor
Twilio / SendGrid Voice Call Failures from Network Subscribers to Twilio Sweden Phone Numbers
minor · Invalid Date — Apr 29, 2026
Resolved
minor
Twilio / SendGrid SMS Delivery Delays from Twilio to Telefonica Costa Rica
minor · Invalid Date — Apr 29, 2026
Resolved
minor
Twilio / SendGrid SMS Delivery Delays from Twilio to Orange Cameroon
minor · Invalid Date — Apr 29, 2026
Resolved
minor
Twilio / SendGrid SMS Delivery Delays from Twilio Phone Numbers to Orange Cameroon
minor · Invalid Date — Apr 29, 2026
Resolved
minor
Twilio / SendGrid SMS Delivery Delays from Twilio to Orange Cameroon
minor · Invalid Date — Apr 29, 2026
Resolved
minor
Twilio / SendGrid User Authentication Identity Gateway API High Latency for T-Mobile in United States
minor · Invalid Date — Apr 28, 2026
Resolved
minor
Twilio / SendGrid SMS Delivery Delays and Failures from Twilio to MTS Russia
minor · Invalid Date — Apr 28, 2026
Resolved
minor
Twilio / SendGrid SMS Delivery Receipt Delays from Twilio to Globe Philippines
minor · Invalid Date — Apr 28, 2026
Resolved
minor
Twilio / SendGrid Lookup Identity Match Lookup V2 API package Increased Error Rate
minor · Invalid Date — Apr 28, 2026
Resolved
none
Twilio / SendGrid SMS Delivery Delays and Failures from a Subset of Twilio Alphanumeric Sender IDs and Long Codes to Jazz Pakistan
minor · Invalid Date — Apr 27, 2026
Resolved
minor
Twilio / SendGrid SMS Delivery Delays and Failures From a Subset of Twilio Alphanumeric Sender IDs and Long Codes to Jazz Pakistan
minor · Invalid Date — Apr 27, 2026
Resolved
minor
Twilio / SendGrid SMS Delivery Delays and Failures from a Subset of Twilio Alphanumeric Sender IDs and Long Codes to Jazz Pakistan
minor · Invalid Date — Apr 27, 2026
Resolved
minor
Twilio / SendGrid SMS Delivery Delays and Failures From a Subset of Twilio Alphanumeric Sender IDs and Long Codes to Jazz Pakistan
minor · Invalid Date — Apr 28, 2026
Resolved
minor
Twilio / SendGrid SMS Delivery Delays and Failures From a Subset of Twilio Alphanumeric Sender IDs and Long Codes to Jazz Pakistan
minor · Invalid Date — Apr 28, 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 58.8/100 compared to Twilio / SendGrid's 22.1/100. 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 96.380% compared to Twilio / SendGrid's 57.725%. 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 11 incidents compared to Twilio / SendGrid's 359 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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