Marketing Automation & CDPs · reliability comparison
Bloomreach Engagement vs Klaviyo: which is more reliable? (2026)
Bloomreach Engagement is more reliable than Klaviyo, scoring 67.3 vs 62.2 out of 100. Over the last 90 days Bloomreach Engagement reported 2 incidents and Klaviyo reported 13, with effective uptime of 99.39% and 99.26% respectively. Klaviyo resolves incidents faster on average (3h 39m).
Data updated Nov 1, 2026 · How we score
| Metric | Bloomreach Engagement | Klaviyo |
|---|---|---|
| Reliability score | 67.3 | 62.2 |
| Rank (marketing automation platforms) | #10 | #11 |
| Uptime (90 days) | 99.39% | 99.26% |
| Incidents (90 days) | 2 | 13 |
| Partial / major outages | 2 | 5 |
| Avg time to resolve | 6h 42m | 3h 39m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Bloomreach Engagement and Klaviyo differ
- Klaviyo reported 6.5× as many incidents as Bloomreach Engagement over the last 90 days (13 vs 2).
- Klaviyo had 5 partial or major outages, compared with 2 for Bloomreach Engagement.
- Klaviyo fixes problems faster: 3h 39m on average, against 6h 42m for Bloomreach Engagement.
- Bloomreach Engagement's longest outage on record lasted 12h 46m (Oct 20, 2026); Klaviyo's lasted 2d 1h (May 5, 2026).
90-day uptime
Bloomreach Engagement
Klaviyo
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Bloomreach Engagement incidents
- Partial outageOct 30, 2026 · resolved in 39m
Bloomreach Engagement - Application access disruption, login is unavailable
Affected: C7S, CA1, CIN, CIS, ENG, EU1 +8 more
- Major outageOct 20, 2026 · resolved in 12h 46m
Bloomreach Engagement - UK region unavailableofficial update ↗
Affected: ENG, UK1, UK2
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 →