Marketing Automation & CDPs · reliability comparison
Census vs Klaviyo: which is more reliable? (2026)
Census is more reliable than Klaviyo, scoring 78.8 vs 62.2 out of 100. Over the last 90 days Census reported 5 incidents and Klaviyo reported 13, with effective uptime of 99.72% and 99.26% respectively. Census resolves incidents faster on average (2h 13m).
Data updated Nov 1, 2026 · How we score
| Metric | Census | Klaviyo |
|---|---|---|
| Reliability score | 78.8 | 62.2 |
| Rank (marketing automation platforms) | #7 | #11 |
| Uptime (90 days) | 99.72% | 99.26% |
| Incidents (90 days) | 5 | 13 |
| Partial / major outages | 5 | 5 |
| Avg time to resolve | 2h 13m | 3h 39m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Census and Klaviyo differ
- Klaviyo reported 2.6× as many incidents as Census over the last 90 days (13 vs 5).
- Census fixes problems faster: 2h 13m on average, against 3h 39m for Klaviyo.
- Census's longest outage on record lasted 5h 7m (Jan 5, 2026); Klaviyo's lasted 2d 1h (May 5, 2026).
90-day uptime
Census
Klaviyo
- 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 regionofficial update ↗
Affected: Sync Engine
- Partial outageSep 16, 2026 · resolved in 3h 51m
LinkedIn Sync Failures - server responding with status 426official update ↗
Affected: Census Sync Management UI
- Major outageSep 9, 2026 · resolved in 52m
App failing to loadofficial update ↗
Affected: Census Sync Management UI
- Partial outageSep 8, 2026 · resolved in 2h 2m
Degraded UI performanceofficial update ↗
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 Klaviyo incidents
- Partial outageOct 29, 2026 · resolved in 2h 10m
Campaign Sending Delaysofficial update ↗
Affected: Email Sending, Text Message Sending, WhatsApp Sending, Mobile Push Sending
- InformationalOct 28, 2026 · resolved in 23h 43m
Affected: Email Sending, Text Message Sending, WhatsApp Sending, Mobile Push Sending, Processing
- Partial outageOct 22, 2026 · resolved in 14h 47m
Outbound Webhook Delaysofficial update ↗
Affected: Analytics
- Partial outageOct 17, 2026 · resolved in 4h 49m
Flow Sending Delaysofficial update ↗
Affected: Email Sending, Text Message Sending, WhatsApp Sending, Mobile Push Sending, Flow Editor, Processing
- Degraded performanceOct 9, 2026 · resolved in 2h 6m
Analytics Events Processing Delays
Affected: Segments, Profiles, Analytics
- Major outageOct 8, 2026 · resolved in 1h 13m
Login and page loading issuesofficial update ↗
Affected: Klaviyo App
Other marketing automation platforms to consider
- HubSpot Marketing Hub · #1 · 100% uptime
- Customer.io · #2 · 99.99% uptime
- Iterable · #3 · 99.96% uptime
- RudderStack · #4 · 99.94% uptime
See the full most reliable marketing automation & customer data platforms ranking →