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Follow confirmed IPs to their hosted domains

Once a team confirms an IP is relevant, get the domains hosted there to help decide whether the investigation needs a wider scope.

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

Teams can lose momentum after validating an IP because the next research step is separate and easy to overlook.

  • Adds a clear follow-up to a confirmed IP lead
  • Surfaces hosted domains for further assessment
  • Reduces the chance that investigation work stalls

Setup

Build it in a few focused steps.

  • 1Connect Slack and Ip2location io once in the Notis portal.
  • 2Create an automation in Automations or ask Notis conversationally to create this workflow.
  • 3Give Notis one instruction to find a confirmed IP in investigation messages and retrieve domains hosted on it.
  • 4Select Channel Message Received and choose a channel for run reports.
  • 5Test with a real investigation message containing a confirmed IP.

Questions about this workflow

Does this action confirm that a domain is malicious?

No. It lists domains hosted on the supplied IP; the investigation team decides what they mean.

Should I include unverified IPs?

Describe the team's confirmation cue in the prompt so the lookup follows your review process.

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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