Uptrue's independent monitoring tracked Calendly and Fibery throughout the week of April 20, 2026. Both providers maintained perfect uptime during the monitoring period, though they differ significantly in response performance, with Calendly averaging 147ms versus Fibery's 730ms.
- Both Calendly and Fibery achieved 100% uptime with zero incidents during the monitoring week
- Calendly responded 5x faster, averaging 147ms compared to Fibery's 730ms
- Neither provider experienced any downtime events requiring incident response
- Response time variance suggests different infrastructure or regional serving strategies between the two platforms
Uptime This Week
Both providers demonstrated flawless availability during the monitoring period, each maintaining 100% uptime with zero recorded incidents. This equal performance reflects robust infrastructure on both sides, though it does not differentiate their reliability profiles during this specific week.
Response Time
Calendly's average response time of 147ms substantially outpaced Fibery's 730ms—a 483ms gap that directly impacts user experience, particularly for calendar lookups and scheduling interactions. This five-fold difference suggests Fibery may be serving globally distributed requests or using heavier application logic per request.
Incidents & Downtime
Neither provider recorded any incidents or downtime during the monitoring period. Both maintained continuous service availability, indicating stable production environments and effective incident prevention practices across their respective infrastructure.
Which Should You Choose?
Choose Calendly if response speed is a priority for your scheduling workflows, particularly in latency-sensitive environments. Select Fibery if feature depth and collaborative document capabilities outweigh the response time trade-off, or if your use case tolerates higher latency.
All uptime, response time, and incident data is collected by Uptrue's independent monitoring infrastructure. HTTP checks run every 5 minutes. An incident is recorded only after 2+ consecutive failed checks. Uptrue is not affiliated with any monitored service. For corrections: reports@uptrue.io