Network Monitoring Software by ManageEngine OpManager

Network Performance
Server & Virtualization
Network Visualization
Network Fault Management
Data Center Management
Storage Management
Reports
AI powered monitoring
Multi-site & Remote Monitoring
Integrations and Add-ons
Mobile Application
- Monitor IT on the move
Network Monitoring Basics
OpManager Alternatives
Network Access Control
- Customizable Role-based Access Control
- SAML Authentication

How to find out the exact cause of why a URL is down?

1) Go to Settings, and under the Basic Settings tab, click on System Settings and enable 'URL' option under the Logging tab.

Cause of URL down in OpManager: Logging tab under system settings

2) Go to Settings, click on the Monitoring tab, and select 'URL' option.
3) Click on any listed URL Monitor to go the URL snapshot page (Navigate to Inventory and click on a device to open the device snapshot page.) .
4) Click on the menu option and select 'Test URL'.

Cause of URL down in OpManager: Test URL option under actions

Note: Go to 'stderr.txt' under <OpManager-Home>/logs folder. A detailed exception will be printed in this log file.