Marketing Automation & CDPs · reliability comparison
Iterable vs Twilio Segment: which is more reliable? (2026)
Iterable is more reliable than Twilio Segment, scoring 93.7 vs 60.5 out of 100. Over the last 90 days Iterable reported 4 incidents and Twilio Segment reported 10, with effective uptime of 99.96% and 99.35% respectively. Iterable resolves incidents faster on average (1h 12m).
Data updated Nov 1, 2026 · How we score
| Metric | Iterable | Twilio Segment |
|---|---|---|
| Reliability score | 93.7 | 60.5 |
| Rank (marketing automation platforms) | #3 | #12 |
| Uptime (90 days) | 99.96% | 99.35% |
| Incidents (90 days) | 4 | 10 |
| Partial / major outages | 0 | 3 |
| Avg time to resolve | 1h 12m | 8h 15m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Iterable and Twilio Segment differ
- Twilio Segment reported 2.5× as many incidents as Iterable over the last 90 days (10 vs 4).
- Twilio Segment had 3 partial or major outages, compared with 0 for Iterable.
- Iterable fixes problems faster: 1h 12m on average, against 8h 15m for Twilio Segment (6.9× quicker).
- Iterable's longest outage on record lasted 40m (Jul 16, 2026); Twilio Segment's lasted 10h 18m (Dec 16, 2025).
90-day uptime
Iterable
Twilio Segment
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Iterable incidents
- Degraded performanceOct 28, 2026 · resolved in 29m
Some customers using Sparkpost (US hosted) for email may be seeing delayed or slow sends
Affected: Global Campaign Sends
- Degraded performanceSep 22, 2026 · resolved in 56m
Timeouts on User Update API Endpoints
Affected: Global API Success
- Degraded performanceSep 10, 2026 · resolved in 2h 23m
EU platform slowness and gateway errors
Affected: Global Web Application, Global API Success, Global Journey Processing
- Degraded performanceSep 1, 2026 · resolved in 58m
Subset of customers using Twilio for SMS seeing a portion of messages getting droppped
Affected: Global Campaign Sends
Recent Twilio Segment incidents
- Degraded performanceOct 26, 2026 · resolved in 16h 20m
Affected: Streaming Destinations (US), Reverse ETL (EU), Streaming Destinations (EU), Reverse ETL (US)
- Degraded performanceOct 2, 2026 · resolved in 1h 16m
Audience & Journey data delivery delay in EU region
Affected: Engage (EU), Linked Audiences (EU), Journeys (EU)
- Degraded performanceOct 1, 2026 · resolved in 8h 33m
Braze Web Event Delivery is experience event delivery issue
Affected: Streaming Destinations (US), Streaming Destinations (EU)
- Degraded performanceSep 16, 2026 · resolved in 2h 10m
Actions S3 is currently experience formatting issues with the delivered events
Affected: Streaming Destinations (US), Engage (US), Streaming Destinations (EU), Engage (EU), Profiles Sync, Journeys (US) +1 more
- Partial outageSep 10, 2026 · resolved in 1h 11m
SSO Login Issues with the Segment App
Affected: Web Interface (US)
- Partial outageSep 3, 2026 · resolved in 4h 11m
Issue with Engage UIofficial update ↗
Affected: Web Interface (US), Engage (US)
Other marketing automation platforms to consider
- HubSpot Marketing Hub · #1 · 100% uptime
- Customer.io · #2 · 99.99% uptime
- RudderStack · #4 · 99.94% uptime
- Hightouch · #5 · 99.92% uptime
See the full most reliable marketing automation & customer data platforms ranking →