SSL Monitors

SSL monitors track your certificate expiration dates and alert you before they expire, preventing embarrassing and costly outages.

Why Monitor SSL Certificates?

Expired certificates cause browser warnings and lost trust
Many services reject connections to expired certificates
Auto-renewal can fail silently
Monitoring gives you time to fix issues

Creating an SSL Monitor

Dashboard
CLI
API

Go to Dashboard > SSL
Click Add Domain
Enter the domain to monitor
Set alert threshold (days before expiry)

kodo ssl add api.example.com --warn 14 --critical 7

# With custom port and service link
kodo ssl add api.example.com --port 443 --service SERVICE_ID

curl -X POST "https://kodostatus.com/api/v1/ssl-monitors" \
  -H "X-API-Key: your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
    "hostname": "api.example.com",
    "alert_threshold_warning": 14,
    "alert_threshold_critical": 7
  }'

What We Check

Check	Description
Expiration date	Days until certificate expires
Certificate chain	All certificates in the chain are valid
Domain match	Certificate matches the domain
Issuer	Certificate authority information

Alert Thresholds

Configure when to receive alerts:

Days Before Expiry	Recommended For
30 days	Standard alert
14 days	Urgent reminder
7 days	Critical warning

Certificate Details

For each monitored domain, we track:

{
  "domain": "example.com",
  "expires_at": "2024-06-15T00:00:00Z",
  "days_until_expiry": 45,
  "issuer": "Let's Encrypt",
  "subject": "CN=example.com",
  "valid_from": "2024-03-15T00:00:00Z"
}

Best Practices

Monitor all domains

Include subdomains, API endpoints, and any domain serving HTTPS traffic.

Set multiple thresholds

Alert at 30 days for awareness, 14 days for action, 7 days for escalation.

Monitor wildcard certs

If you use *.example.com, monitor the base domain.

Test auto-renewal

Even with Let’s Encrypt or similar, certificates can fail to renew.

Uptime Monitors Domain Monitors

Getting Started

Status Management

Monitoring

Alerting

Automation

Notifications

Client Tracking

Integrations

SSL Monitors

Why Monitor SSL Certificates?

Creating an SSL Monitor

What We Check

Alert Thresholds

Certificate Details

Best Practices

​Why Monitor SSL Certificates?

​Creating an SSL Monitor

​What We Check

​Alert Thresholds

​Certificate Details

​Best Practices

Why Monitor SSL Certificates?

Creating an SSL Monitor

What We Check

Alert Thresholds

Certificate Details

Best Practices