10 channels · zero noise
Ten channels. One alert. Every channel delivers the same rich context: monitor name, status, response time, screenshots, and direct links to investigate.
plus · zero config
Free on every plan. One-click enable. Works on desktop and mobile, even when the dashboard tab is closed. No additional setup.
rest api · openapi 3.1
Every alert is available via our REST API. Create monitors, manage channels, query incidents, and build custom dashboards, all programmatically.
// Create a notification channel POST /api/notification-channels { "name": "DevOps Slack", "type": "SLACK", "config": { "webhookUrl": "https://hooks.slack.com/..." }, "alertTypes": [ "downtime", "recovery", "ssl", "visual_change" ] }
alert types
Every notification channel supports every alert type. Choose which types each channel receives. Route downtime to PagerDuty and visual changes to Slack.
Site goes down or returns error status codes.
Site comes back online after downtime.
Response time exceeds your threshold.
Certificate expires within 13, 3, or 1 day (defaults). 20 and 6 day tiers also available.
A scheduled selected-record snapshot differs.
Page appearance changed beyond threshold.
Configured page text or freshness rule changed.
CPU, memory, or disk exceeds threshold.
Server agent stops reporting.
A supported request-timing or mobile Lighthouse lab threshold was crossed.
Visual Sentinel supports email, Slack, Discord, Telegram, Microsoft Teams, PagerDuty, OpsGenie, WhatsApp Business, generic webhooks, Prometheus, and browser or mobile push. Email and browser push are on every plan, and every paid plan includes every channel.
Yes. Each monitor can use its own set of notification channels, so one client site can alert a dedicated Slack channel while another routes downtime to PagerDuty or WhatsApp.
Yes. You can route downtime, recovery, SSL and domain expiry, DNS, visual, content, performance, and server alerts independently instead of sending every event everywhere.
Visual Sentinel records delivery failures and keeps an in-app alert available as a fallback. Configure more than one channel for critical monitors when you need redundant delivery paths.
Yes. Generic webhooks send structured event data to your own endpoint, while the REST API and Prometheus integration support custom operational workflows and dashboards.
route alerts where you work
Email and browser push are included on every plan, and every paid plan includes every channel.
