Availability Monitoring
HTTP/HTTPS uptime monitoring from multiple regions worldwide. Know instantly when your website goes down.
Why Monitor Availability?
Downtime costs money and trust.
Every minute of downtime means lost visitors, revenue, and credibility. Your site could be down right now and you wouldn't know until a customer complains.
Instant Alerts
Get notified within minutes when your site goes down, not hours later.
Multi-Region
Detect regional outages — your site might be up in Europe but down in Asia.
Performance Tracking
Monitor response times and catch slowdowns before they become outages.
What We Check
Comprehensive availability analysis.
| Check | Description |
|---|---|
| HTTP Status Code | We expect HTTP 200 OK. Other status codes indicate problems. |
| Response Time | How long it takes your server to respond (latency in ms). |
| Connection Timeout | If your server doesn't respond within the timeout period. |
| DNS Resolution | Verifies your domain resolves correctly to an IP address. |
| SSL Validity | For HTTPS URLs, we verify the certificate is valid during the check. |
Setting Up Availability Monitoring
Add New Monitor
Go to your Dashboard and click "New" button.
Enter Your URL
Enter the full URL you want to monitor (e.g., https://example.com).
Include the protocol (http:// or https://).
Select Availability Type
Choose "Availability" as the check type (this is the default).
Choose Check Interval
Select how often to check your site:
- Free plan: 5, 10, 30, or 60 minutes
- Paid plans: 1, 5, 10, 30, or 60 minutes
Select Regions
Choose which regions to check from. More regions = better coverage but uses more of your quota.
Check Intervals
How often we ping your site.
| Plan | Available Intervals |
|---|---|
| Echo (Free) | 5, 10, 30, 60 minutes |
| Pulse / Wave | 1, 5, 10, 30, 60 minutes |
Need 1-Minute Checks?
Available Regions
Check from multiple locations worldwide.
upsonar checks your site from data centers around the world. This helps detect regional outages and reduces false positives from network issues.
| Region | Location |
|---|---|
| New York | US East Coast |
| San Francisco | US West Coast |
| Toronto | Canada |
| London | Europe (UK) |
| Amsterdam | Europe (Netherlands) |
| Frankfurt | Europe (Germany) |
| Singapore | Asia Pacific |
| Bangalore | India |
| Sydney | Australia |
| Plan | Regions per Monitor |
|---|---|
| Echo (Free) | 1 region |
| Pulse | Up to 3 regions |
| Wave | Up to 6 regions |
Auto-Retry
Reduce false positives.
Automatic Retries
Retry failed checks before alerting
When a check fails, upsonar can automatically retry before marking your site as down. This prevents false alerts from temporary network glitches.
- Configure 0-10 retry attempts
- Recommended: 3 retries for balance between speed and accuracy
- Each retry adds a small delay before the next attempt
Response Time Tracking
Monitor your site's performance.
We track response times from each region, helping you identify performance issues before they become outages.
| Response Time | Rating |
|---|---|
| < 200ms | Excellent |
| 200 - 500ms | Good |
| 500 - 1000ms | Fair |
| > 1000ms | Slow |
Common Issues
What causes downtime alerts.
Connection Timeout
Server didn't respond within the timeout period. Could be server overload, network issues, or the server is completely down.
HTTP 5xx Errors
Server errors (500, 502, 503, etc.) indicate your server is having problems processing requests.
DNS Resolution Failed
Your domain couldn't be resolved to an IP address. Check your DNS configuration.
SSL/TLS Error
Certificate expired, invalid, or hostname mismatch. See SSL Monitoring for details.
Best Practices
Use Multiple Regions
Check from at least 2-3 regions to avoid false positives from regional network issues.
Enable Auto-Retry
Set 2-3 retries to filter out temporary network glitches.
Appropriate Intervals
Critical sites: 1-5 min. Standard sites: 5-10 min. Low priority: 30-60 min.
Monitor Key Pages
Don't just monitor the homepage — add monitors for login, checkout, API endpoints.