Marketing Automation & CDPs · reliability comparison
Census vs Customer.io: which is more reliable? (2026)
Customer.io is more reliable than Census, scoring 96.2 vs 78.8 out of 100. Over the last 90 days Census reported 5 incidents and Customer.io reported 5, with effective uptime of 99.72% and 99.99% respectively. Customer.io resolves incidents faster on average (19m).
Data updated Nov 1, 2026 · How we score
| Metric | Census | Customer.io |
|---|---|---|
| Reliability score | 78.8 | 96.2 |
| Rank (marketing automation platforms) | #7 | #2 |
| Uptime (90 days) | 99.72% | 99.99% |
| Incidents (90 days) | 5 | 5 |
| Partial / major outages | 5 | 0 |
| Avg time to resolve | 2h 13m | 19m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Census and Customer.io differ
- Census had 5 partial or major outages, compared with 0 for Customer.io.
- Customer.io fixes problems faster: 19m on average, against 2h 13m for Census (7.0× quicker).
- Census's longest outage on record lasted 5h 7m (Jan 5, 2026); Customer.io's lasted 2h 42m (Jun 13, 2026).
90-day uptime
Census
Customer.io
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Census incidents
- Partial outageOct 1, 2026 · resolved in 3h 16m
Sync Outage in azure-eastus region
Affected: Sync Engine
- Partial outageSep 16, 2026 · resolved in 3h 51m
LinkedIn Sync Failures - server responding with status 426
Affected: Census Sync Management UI
- Major outageSep 9, 2026 · resolved in 52m
Affected: Census Sync Management UI
- Partial outageSep 8, 2026 · resolved in 2h 2m
Affected: Census Sync Management UI
- Partial outageAug 26, 2026 · resolved in 1h 2m
Facebook (Meta) Sync Failures - API access disrupted
Affected: Census Sync Management UI, Sync Engine
Recent Customer.io incidents
- Degraded performanceOct 27, 2026 · resolved in 25m
Customer.io UI is currently unavailable for some customers
Affected: Management Interface
- Degraded performanceSep 19, 2026 · resolved in 27m
Some US customers may experience delays in message sending
Affected: Message Sending
- InformationalSep 4, 2026 · resolved in 1h 19m
Reduced Deliverability to Microsoft-Hosted Email Addresses
Affected: Message Sending
- Degraded performanceSep 3, 2026 · resolved in 5m
- InformationalAug 5, 2026 · resolved in 26m
Customer.io UI is inaccessible
Affected: Management Interface
Other marketing automation platforms to consider
- HubSpot Marketing Hub · #1 · 100% uptime
- Iterable · #3 · 99.96% uptime
- RudderStack · #4 · 99.94% uptime
- Hightouch · #5 · 99.92% uptime
See the full most reliable marketing automation & customer data platforms ranking →