Scheduled website uptime monitor with Slack alert

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

This workflow periodically checks the status of a website. If the website is not reachable (returns an error or non 2xx status code), it sends an alert to a specified Slack channel. Use Case: Monit...

Best for

DevOps automation workflows
intermediate n8n builders looking for reusable templates

Tools used

n8n-nodes-base.cron, n8n-nodes-base.httprequest, n8n-nodes-base.if, n8n-nodes-base.slack, n8n-nodes-base.stickynote

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by David Olusola.

Original n8n.io source

1.1 Workflow description

Title: Scheduled website uptime monitor with Slack alert
Workflow name: Scheduled website uptime monitor with Slack alert

Overview

This workflow periodically checks the status of a website. If the website is not reachable (returns an error or non-2xx status code), it sends an alert to a specified Slack channel.

Use Case: Monitor your website, client websites, or critical APIs for downtime and receive immediate notifications.

How It Works

This workflow operates in four main steps:

Scheduled Trigger:

A Cron node is configured to run at regular intervals (e.g., every 15 minutes, hourly).

HTTP Request to Website:

An HTTP Request node attempts to make a GET request to the specified website URL.

It's set to ignore HTTP errors so that the workflow doesn't stop immediately if the site is down, allowing the "If" node to handle the status.

Check Website Status (If Node):

An If node checks the statusCode returned by the HTTP Request node.

If the statusCode is not in the 2xx range (indicating success), the workflow proceeds to the "Send Slack Alert" branch. Otherwise, it does nothing.

Send Slack Alert:

A Slack node sends a message to a predefined Slack channel, notifying you that the website is down and including details like the URL and status code.

Setup Steps

To get this workflow up and running, follow these instructions:

Step 1: Create Slack API Credentials in n8n

In your n8n instance, click on Credentials in the left sidebar.

Click New Credential.

Search for and select "Slack API".

Follow the instructions to connect your Slack workspace. You'll likely need to create a Slack App and get a Bot User OAuth Token. Save the credential.

Make note of the Credential Name (e.g., "My Slack Account"). Schedule Monitor (Every Hour) Node:

"Mode": Set your desired polling interval (e.g., everyHour, every15Minutes, every5Minutes).

"Hour" / "Minute": Adjust if you want specific times for hourly/daily checks.

Check Website HTTP Status Node:

In the "URL" field, replace https://www.google.com with the actual URL of the website you want to monitor.

Send Slack Alert Node:

Select your Slack credential under the "Credentials" section.

In the "Channel" field, replace #website-alerts with the actual Slack channel where you want to receive alerts.

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Schedule Monitor (Every Hour)

Type / Role: n8n-nodes-base.cron - cron
Config choices: Version 1

Block 2 - Check Website HTTP Status

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 3

Block 3 - If Website is Down

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2

Block 4 - Send a message

Type / Role: n8n-nodes-base.slack - slack
Config choices: Version 2.3

Block 5 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 6 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 7 - Sticky Note2

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

3. Summary Table

Workflow	Scheduled website uptime monitor with Slack alert
Complexity	intermediate
Nodes	7
Categories	DevOps
Author	David Olusola
Published	26 Jul 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/6467/6467.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source DevOps workflows

Frequently asked questions

What does Scheduled website uptime monitor with Slack alert do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your DevOps use case.

David Olusola

92 workflows

Nodes

n8n-nodes-base.cron n8n-nodes-base.httprequest n8n-nodes-base.if n8n-nodes-base.slack n8n-nodes-base.stickynote

Complexity

intermediate

Published 26 Jul 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/6467/6467.json

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Scheduled website uptime monitor with Slack alert

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Overview

How It Works

Setup Steps

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Schedule Monitor (Every Hour)

Block 2 - Check Website HTTP Status

Block 3 - If Website is Down

Block 4 - Send a message

Block 5 - Sticky Note

Block 6 - Sticky Note1

Block 7 - Sticky Note2

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions