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Alertra

Comprehensive website monitoring and network security services you can rely on.

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Alertra monitors websites, servers, and routers for uptime and performance from a global network of independent nodes. It provides alerts by email, phone call, SMS, and chat (XMPP), and supports custom contact methods via API. The service includes SYNapse™ technology for early detection, no false alerts (consecutive failures from three locations required), no DNS caching, detailed HTTP response time breakdown, packet capture, custom scripts for multi-step monitoring, and a REST API. Pricing is per URL per month with a $9.95 minimum.

12 alternatives to Alertra

Ranked by how well each tool replaces Alertra: shared features, audience, price and popularity.

  1. Auvik

    Cloud-based network management and monitoring software.

    Covers 2 of 15 key features.

    62 out of 100 matchContact sales

  2. NGINX

    Free-to-use NGINX monitoring service (retiring January 31, 2026).

    Covers 2 of 15 key features and has a free plan.

    Free plan
    61 out of 100 matchFree

  3. UptimeRobot

    Free website and service monitoring with status pages.

    Covers 2 of 15 key features and has a free plan.

    Free plan
    60 out of 100 matchContact sales

  4. HostTracker

    Website and uptime monitoring from 300+ locations with phone call, SMS and Slack alerts.

    Covers 3 of 15 key features and has a free plan.

    Free plan
    60 out of 100 match$9/mo

  5. WebSitePulse

    Monitoring service for servers, webpages, and web transactions.

    Covers 3 of 15 key features and starts cheaper.

    60 out of 100 match$3/mo

  6. Admin Labs

    Hosted status pages with integrated website monitoring in one service

    Covers 1 of 15 key features and has a free plan.

    Free plan
    59 out of 100 matchFree

  7. Paessler PRTG

    Complete network monitoring with zero blind spots.

    Covers 2 of 15 key features and has a free plan.

    Free plan
    59 out of 100 match$200/mo

  8. HetrixTools

    Uptime, server and blacklist monitoring in one account.

    Covers 0 of 15 key features and has a free plan.

    Free plan
    59 out of 100 match$9.95/mo

  9. Uptime.com

    The Website Monitoring Service for Unmatched Uptime Monitoring

    Covers 1 of 15 key features.

    58 out of 100 match$9/mo

  10. Uptrends

    Best-in-class Digital Experience Monitoring

    Covers 3 of 15 key features and has a free plan.

    Free plan
    58 out of 100 match$46/mo

  11. NodePing

    Uptime Monitoring for Websites and Services

    Covers 3 of 15 key features.

    58 out of 100 match$10/mo

  12. Okmeter

    Realtime server monitoring service with alerts, charts and dashboards

    Covers 1 of 15 key features and starts cheaper.

    57 out of 100 match$5/mo