Create webpage evidence from a Slack reaction
Mark a link once and get a durable rendered record for your team.
Trigger
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Action
Take Webpage Snapshot
Tool to capture rendered HTML and screenshot of a webpage. Use when you need both DOM content and an image in one request with custom loading and capture settings.
Why this helps
Teams save links for later but lose the exact page state and context they intended to keep.
- Stores both DOM content and a visual capture.
- Turns lightweight reactions into reliable evidence requests.
- Supports asynchronous research without extra messages.
Setup
Build it in a few focused steps.
- 1Connect Slackbot and Cloudflare browser rendering once in Notis.
- 2Create an automation named Reaction page snapshot.
- 3Tell Notis to snapshot the URL in the reacted message and include the reaction name and message context in the report.
- 4Pick Message Reaction Added as the trigger and choose where run reports go.
- 5Test by reacting to one message that contains a public URL.
Questions about this workflow
Can different reactions request different outputs?
Yes. Describe the reaction conventions in the automation prompt.
Does it preserve the original message?
The report can include the message context supplied by the Slack event.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slackbot to Cloudflare browser rendering. A trigger fires from one place; an action lands in another.
Slackbot triggers
Cloudflare browser rendering actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Capture Screenshot
Tool to capture a webpage screenshot. Use when you need a visual snapshot of a URL or HTML with optional viewport and clipping.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
List Accounts
Tool to list all Cloudflare accounts accessible. Use to retrieve a valid account_id for further browser rendering actions.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Scrape HTML Elements
Tool to scrape HTML elements for text, HTML, attributes, and box metrics. Use when you need detailed data of matched selectors after rendering a page.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Take Webpage Snapshot
Tool to capture rendered HTML and screenshot of a webpage. Use when you need both DOM content and an image in one request with custom loading and capture settings.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Connect any two apps with Notis in the middle.
Slackbot and Cloudflare browser rendering, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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No card. Works with personal or business Cloudflare browser rendering.