hostnag

Opsgenie alerts for every outage

hostnag creates an Opsgenie alert on down and closes it on recovery.

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Included on Business.

PlansFreeProBusiness

Down

Action
create
Message
[Critical] https://www.example.com/ is down
Priority
P1
Alias
hostnag:mon-3
Description
Down from 2 of 3 locations (US East, Frankfurt). Last error: unexpected_status: 503.

Group: Client A
Monitor: Marketing site
Target: https://www.example.com/
Down since: 12 Sept 2026, 07:58 UTC
Locations: US East, Frankfurt
Status code: 503
Last error: unexpected_status: 503

Set up

  1. 01

    Add an API integration

    In Opsgenie, create an API integration and copy its key.

  2. 02

    Pick US or EU

    Match the API your Opsgenie account uses; hostnag creates an alert by alias on down and closes the same alias on recovery.

What arrives

Rendered by the same code that sends it.

Back up

Action
close
Alias
hostnag:mon-3
Note
https://www.example.com/ answered again from every location. It was down for 1 h 15 min.

Routing

Every alert follows the group's alert policy: which channels a route goes to and the minimum severity each one takes, in bands of critical, warning and info. Quiet hours hold non-critical alerts for email, Slack, Discord, SMS, Teams and Telegram until the window closes, then deliver one digest; critical alerts are never held, and webhook, PagerDuty and Opsgenie always deliver right away since they hand off to another machine, not a person. A maintenance window on a group or a monitor suppresses alerts for its duration while checks keep running. An alert nobody acknowledges escalates through up to three tiers, each after its own number of minutes, and can be acknowledged with one tap from the alert message itself.

Questions

How does hostnag avoid duplicate alerts?

Every event for the same monitor shares one alias, so a create and its close pair up automatically.

Is Opsgenie available on every plan?

No. Opsgenie is included on Business.

Watches

Alerting and status pagesEvery alert routed to the right channel at the right severity, held during quiet hours and maintenance, escalated until it's acknowledged.Uptime monitoringWebsites, APIs and anything that answers on a port, checked every minute from up to four places, with a failure confirmed before anyone is paged.

Add a host. Hear about it in Opsgenie.

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