| What it does | Real-time monitoring for websites with alerts across email, SMS, Slack, and more
| Know the second your site goes down
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| Stage | Not given
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| Founded | Not given
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| Based in | CZ
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| Pricing model | Freemium
| Freemium
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| Pricing | Lite: $12/year (excl. VAT, 3 monitors); Essentials: $4/month (excl. VAT, 10 monitors); Pro: $9/month (excl. VAT, unlimited monitors)
| Free: 50 monitors, all 9 monitor types, 5-minute checks, email/webhook/Slack/Discord alerts, no credit card required. Add-ons: $25/month for 5 additional notification contacts, $50/month for 50 additional monitors, $25/month for Server Monitoring (disk, CPU, memory). Pro plan in development with 1-m
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| Key features | - Uptime and HTTP status monitoring with one-minute checks
- SSL certificate expiry tracking
- DNS record change detection
- Keyword monitoring for page content
- Cron task and background job monitoring
- Multiple alert channels including Slack and SMS
- Hosted status pages for public incidents
- iPhone iOS app with push notifications
- Incident history and response tracking
- Response time and status code validation
| - HTTP and HTTPS monitoring with status codes and response time tracking
- Keyword monitoring to detect content changes or missing text
- Ping monitoring for server reachability
- Port monitoring for TCP services and custom ports
- Heartbeat monitoring for cron jobs and background workers
- SSL certificate expiry warnings before HTTPS breaks
- DNS record monitoring for hijacking and changes
- Content change detection with line-by-line diffs
- Alerts via email, Slack, Discord and webhook
- REST API and MCP server for programmatic access
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| What makes it different | - 60-second check interval for real-time monitoring
- Single dashboard combining uptime, SSL, DNS, and cron monitoring
- Setup from signup to alerts in minutes without technical configuration
- No credit card required for 14-day trial
- Seven notification channels for team-wide alert delivery
| - 9 monitor types on free plan including HTTP, keyword, ping, port, heartbeat, SSL, domain, DNS and content change detection
- 50 free monitors with no credit card required
- Two-failure confirmation prevents false alarms from single blips
- Maintenance windows to pause checks during planned deploys
- Response time tracking and incident timeline for every outage
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 31 ● no change since last check | 23 ▲ +7 (up) since last check |
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| Trust Flow (Majestic) | 4 | 1 |
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| Citation Flow (Majestic) | 21 | 18 |
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| Referring domains (Majestic) | 69 | 3 |
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