PagerDuty vs Vigilmon: Incident Management vs Uptime Monitoring - What is the Difference

PagerDuty vs Vigilmon: Incident Management vs Uptime Monitoring

PagerDuty and Vigilmon both live in the "keep your systems up" space, but they solve different problems and operate at different points in the incident lifecycle. Many teams run both — and understanding why helps you build a smarter on-call stack.

What Each Tool Does

PagerDuty is an incident management and on-call orchestration platform:

• Routes alerts from monitoring tools to the right on-call person
• Manages on-call schedules and rotations
• Provides escalation policies when primary responders don't acknowledge
• Tracks incident lifecycle from detection to resolution
• Integrates with 700+ monitoring tools (including Vigilmon)
• Includes AI-driven noise reduction and alert correlation

Vigilmon is an uptime and availability monitoring tool:

• Checks if your website/API is reachable from the internet every minute
• Monitors SSL certificate expiry
• Tracks response time trends
• Provides public status pages for your users
• Sends alerts when your service goes down

The Key Distinction: Detection vs. Response

PagerDuty assumes you already have monitoring in place. It handles what happens after an alert fires: routing it to the right person, waking someone up at 3am, escalating if no one responds, and tracking the incident.

Vigilmon handles detection: watching your services 24/7 from multiple locations and triggering alerts when something goes wrong.

How They Work Together

The most common pattern:


Vigilmon (external check)
|
| Alert fires (service is down)
v
PagerDuty (incident management)
|
| Pages on-call engineer
v
Engineer investigates and resolves
|
v
PagerDuty closes incident, tracks MTTR


Vigilmon detects; PagerDuty routes and tracks.

Feature Comparison

Feature	PagerDuty	Vigilmon
External uptime checks	No (integrates with tools that do)	Yes
SSL certificate monitoring	No	Yes
Public status pages	Yes (PD Status Pages)	Yes
On-call scheduling	Yes	No
Escalation policies	Yes	No
Alert routing/noise reduction	Yes	No
Response time monitoring	No	Yes
Multi-region checks	Depends on integration	Yes
Incident timeline/postmortem	Yes	Partial (uptime history)
Free tier	Yes (limited)	Yes

When You Need PagerDuty But Not Vigilmon

If you already have comprehensive monitoring (Datadog, New Relic, CloudWatch) generating alerts, you might add PagerDuty purely for routing and escalation without adding Vigilmon. This works if your existing monitoring has external uptime checking.

When You Need Vigilmon But Not PagerDuty

Small teams or solo developers who need to know when their site is down but don't need on-call rotation management. Vigilmon's built-in notifications (email, Slack) are sufficient.

When You Need Both

Most teams with 3+ engineers on call should use both:

• Vigilmon: External perspective on availability, SSL expiry, status page for users
• PagerDuty: Route Vigilmon alerts to the right person based on schedule and escalation policy

Integrating Vigilmon with PagerDuty

Vigilmon supports PagerDuty webhooks. When a monitor goes down, Vigilmon fires a webhook to PagerDuty which creates an incident and pages the on-call engineer.

Setup:

1. In PagerDuty, create a new integration on your service (Events API v2)
2. Copy the integration key
3. In Vigilmon, go to your monitor's notification settings
4. Add a webhook with your PagerDuty Events API endpoint
5. Test the integration

Pricing Reality

Tool	Free Tier	Paid Entry Point
Vigilmon	Yes - 10 monitors	Paid plans from \/month
PagerDuty	Free (limited)	\/user/month (Professional)

For a 3-person team needing on-call management plus Vigilmon for external monitoring, budget -100/month.

Summary

• Use Vigilmon to detect that your service is down from the outside world
• Use PagerDuty to route that alert to the right on-call person and track the incident
• Use both together for a complete detection-to-resolution workflow

Get started with Vigilmon uptime monitoring for free - integrates with PagerDuty out of the box.