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See which domains are hosted on a reported IP

When a channel investigation confirms an IP, check the domains hosted on it to widen the team's view of the issue.

Trigger

Channel Message Received

Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.

Action

IP2WHOIS Hosted Domain

Tool to retrieve hosted domain names by IP address. Use when you need to list domains hosted on a given IP. Call after confirming the IP.

Why this helps

A confirmed IP can leave investigators wondering what else is associated with it, adding another manual research task.

  • Extends an IP investigation to associated hosted domains
  • Keeps a follow-up research step from being forgotten
  • Returns findings through the Notis run report

Setup

Build it in a few focused steps.

  • 1Connect Slack and Ip2location io to Notis once.
  • 2In Automations, create a new automation, or ask Notis conversationally for this result.
  • 3Use one instruction to identify a confirmed IP in a Slack investigation message and retrieve domains hosted on that IP.
  • 4Select Channel Message Received and choose where run reports should go.
  • 5Test with a real message containing an IP that the team has confirmed.

Questions about this workflow

Why does the prompt say confirmed IP?

The action is intended for a known IP address; describe your review process so Notis uses it after the team confirms the address.

Does this action return geolocation?

No. It retrieves domain names hosted on the IP.

When this happens · Trigger

Do this · Action

Supported Triggers and Actions

Notis builds workflows that link Slack to Ip2location io. A trigger fires from one place; an action lands in another.

Slack triggers

Ip2location io actions

Recurring trigger

Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.

TriggerScheduled

Bulk IP Geolocation

Tool to retrieve geolocation information for multiple IP addresses in bulk. Use when processing up to 1000 IPs at once.

ActionInstant

Webhook trigger

Notis starts this workflow when an external tool or custom backend sends an HTTP request.

TriggerInstant

Domain WHOIS Lookup

Tool to retrieve WHOIS information for a given domain. Use when you need domain registration and contact details via IP2WHOIS API.

ActionInstant

New Channel Created Trigger

Triggered when a new channel is created in Slack.

TriggerInstant

Get API Key

Tool to retrieve the configured API key. Use when authentication is needed for IP2Location.io requests.

ActionInstant

Channel Message Received

Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.

TriggerInstant

IP2WHOIS Hosted Domain

Tool to retrieve hosted domain names by IP address. Use when you need to list domains hosted on a given IP. Call after confirming the IP.

ActionInstant

Direct Message Received

Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.

TriggerInstant

Message Reaction Added

Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.

TriggerInstant

Message Reaction Removed

Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.

TriggerInstant

Reaction Added Trigger

DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.

TriggerInstant

Connect any two apps with Notis in the middle.

Slack and Ip2location io, or any other combination from 1,000+ integrations.

When this happens · Trigger

Do this · Action

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