How to Monitor Website Uptime (Step-by-Step Guide)

Monitoring your website's uptime doesn't require a DevOps team or complex infrastructure. In most cases, you can go from zero to comprehensive monitoring in under 15 minutes. This guide walks you through the entire process — from choosing what to monitor to responding effectively when something goes wrong.

Step 1: Identify What to Monitor

Before adding your first monitor, map the endpoints that matter most to your business. Most teams monitor too few endpoints initially and too many later. Start focused.

Tier 1 — Monitor immediately (check every 1 minute):

• Your homepage (confirms basic DNS/server health)
• Login/authentication endpoint
• Primary API health check endpoint
• Payment or checkout flow

Tier 2 — Monitor soon (check every 5 minutes):

• Key landing pages
• User dashboard
• Signup/registration flow
• Critical API endpoints

Tier 3 — Monitor eventually (check every 10-15 minutes):

• Admin panels
• Less-trafficked feature pages
• Webhook receivers
• Internal tools

Step 2: Choose Your Monitoring Tool

For most teams, a dedicated uptime monitoring service beats DIY solutions. Dedicated tools handle multi-location confirmation, alert routing, on-call scheduling, and status pages out of the box.

Key features to look for:

• Multi-location monitoring (minimum 5 global locations)
• 1-minute check intervals on paid plans
• SSL certificate monitoring included
• Integrations with your alerting stack (Slack, PagerDuty, etc.)
• API access for infrastructure-as-code setups

AzMonitor covers all of these with monitoring nodes across 20+ global locations, giving you accurate uptime data regardless of where your users are located.

Step 3: Add Your First Monitor

Here's the exact process in AzMonitor (most tools follow a similar flow):

1. Click Add Monitor in your dashboard
2. Select monitor type: HTTP/HTTPS for web pages, TCP for ports, DNS for domain checks
3. Enter the URL: https://yoursite.com
4. Set check interval: 1 minute for critical endpoints
5. Set confirmation: Require 2 locations to confirm before alerting
6. Add keyword check: Enter text that should appear in the response (e.g., your site name)
7. Save and activate

Your first monitor is now live. You'll see a green indicator once the initial checks complete successfully.

Step 4: Configure Alert Notifications

A monitor without alerts is useless. Set up at minimum two notification channels so you have redundancy:

# Example alert configuration
primary_channel: slack
  - workspace: engineering
  - channel: #alerts-production

secondary_channel: email
  - recipients: [oncall@yourcompany.com]

escalation:
  - delay: 5 minutes
  - method: sms
  - contact: on-call-engineer

Best practice: Don't alert too aggressively. Require 2-3 consecutive failures before sending a notification. One failed check could be a transient network blip — three consecutive failures almost certainly indicates a real problem.

Step 5: Set Up SSL Certificate Monitoring

SSL certificate expiry is responsible for a surprising number of preventable outages. Add SSL monitoring for every HTTPS endpoint with alert thresholds at:

• 30 days before expiry — Start renewal process
• 14 days before expiry — Escalate if not yet renewed
• 7 days before expiry — Emergency alert to engineering leadership

This three-tier warning system ensures certificate expiry never catches you off guard. Read more in our SSL certificate monitoring guide.

Step 6: Configure Maintenance Windows

Every deployment creates a monitoring gap. Without maintenance windows, your monitoring system fires alerts during planned downtime — training your team to ignore alerts and creating real blindspots.

Schedule maintenance windows in advance for:

• Planned deployments
• Database migrations
• Infrastructure upgrades
• Third-party vendor maintenance windows

Most teams trigger maintenance windows via API as part of their CI/CD pipeline:

# Trigger maintenance window via API during deployment
curl -X POST https://api.azmonitor.com/v1/maintenance \
  -H "Authorization: Bearer $AZMONITOR_API_KEY" \
  -d '{"monitor_ids": ["abc123"], "duration_minutes": 30}'

Step 7: Establish Your Response Process

Monitoring only helps if you have a process for responding to alerts. Before your first real incident, document:

Immediate response (0-5 minutes):

• Acknowledge the alert to stop escalation
• Check your monitoring dashboard for affected regions
• Determine if it's a partial or total outage

Investigation (5-15 minutes):

• Check server/infrastructure logs
• Review recent deployments
• Test the affected endpoint manually
• Determine root cause hypothesis

Communication:

• Update your status page within 5 minutes of confirming an outage
• Send customer-facing communication for outages > 10 minutes
• Keep updates coming every 30 minutes until resolved

Step 8: Review Your Uptime Reports

Monthly uptime reports serve two purposes: accountability and trend identification. Review your reports for:

• Overall uptime percentage — Are you meeting your SLA?
• Response time trends — Is performance degrading over time?
• Incident frequency — Are the same endpoints failing repeatedly?
• MTTR trends — Is your team getting faster at resolving issues?

AzMonitor generates these reports automatically and can send them to stakeholders on a scheduled basis. See our guide on exporting and sharing uptime reports.

Common Mistakes to Avoid

Monitoring the CDN, not the origin — If your CDN is serving cached content, your origin server could be down while monitoring shows green. Add checks for your origin URL directly.

Using only GET requests — Critical API endpoints often require POST requests with authentication. Set up authenticated checks for your most important API endpoints.

Forgetting subdomains — api.yoursite.com, admin.yoursite.com, and app.yoursite.com can fail independently of your main domain. Monitor each one separately.

Setting thresholds too high — A 30-second response time threshold for an API endpoint that normally responds in 50ms means you'll never get a performance alert until users are screaming.

Your Next Steps

With these eight steps, you have a solid uptime monitoring foundation. The key is to start simple — get your five most critical endpoints monitored today — and expand from there based on what you learn.

Sign up for AzMonitor and have your first monitor running in under two minutes. The free plan includes 10 monitors with 5-minute check intervals — more than enough to get started.