| What it does | Know the second your site goes down
| Know what changed. Before it matters.
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Freemium
| Freemium
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| Pricing | 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
| Free: 2 URL monitors and 100 checks per month. Starter: $4.99/month. Pro: $8.99/month. Enterprise: $59/month.
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| Key features | - 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
| - Visual webpage diffs with side-by-side and inline HTML comparisons
- OpenAPI and Swagger specification monitoring with semantic diffs
- AI-powered change filters to reduce false positives
- Multi-region page checks from US, EU, Middle East, or Africa
- Slack, email, Telegram, and webhook alerts
- Configurable check schedules from minutes to daily
- CSS selector and region-based scoping for precise monitoring
- Email digest options combining multiple monitors into one message
- Anti-bot browser sessions for captcha-protected pages
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| What makes it different | - 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
| - Monitors HTML and OpenAPI specs with readable diffs, not just screenshots
- Email digests roll all monitor changes into a single message
- AI filters scope alerts to specific sections and ignore noise
- Multi-region checks capture localized pricing and geo-locked content
- Semantic OpenAPI diffs report breaking changes and deprecations
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 23 ▲ +7 (up) since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 1 | 2 |
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| Citation Flow (Majestic) | 18 | 22 |
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| Referring domains (Majestic) | 3 | 30 |
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PingChange