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Thie workflow showcases how you can build a simple website monitoring service using Scheduled Triggers and the HTTP Requests node.

Configured with Gmail, Google Sheets, HTTP Request, Schedule Trigger, and additional nodes. Review the connections and setup before adapting this template.

Workflow preview
TriggerSchedule TriggerSchedule TriggerTransformCalculate StatusEdit FieldsData storeGet SitesGoogle SheetsMessagingSend Chat AlertSlackMessagingSend Email AlertGmailData storeLog Uptime EventGoogle SheetsData storeUpdate Site StatusGoogle SheetsWeb / APIPerform Site TestHTTP RequestRoutingFor Each Site...Loop Over ItemsRoutingStatus RouterSwitch

Node categories in this workflow

  • Trigger
  • Transform
  • Data store
  • Messaging
  • Web / API
  • Routing

Icons describe general node roles, inferred from node types. Inspect the parameters for the configured action.

Drag to pan; use + and − to zoom. Reconstructed from the exported node positions; nothing runs here. Dashed lines represent non-main connections. Full node names and notes appear below.

How it works

The exported workflow contains the following configured nodes. Their connections are shown above; inspect the JSON for the complete logic, expressions, and external actions.

Workflow node names, types, and operations
NodeCategoryTypeOperation
Schedule TriggerTriggerSchedule TriggerSee node parameters
Calculate StatusTransformEdit FieldsSee node parameters
Get SitesData storeGoogle SheetsSee node parameters
Send Chat AlertMessagingSlackSee node parameters
Send Email AlertMessagingGmailSee node parameters
Log Uptime EventData storeGoogle Sheetsappend
Update Site StatusData storeGoogle SheetsappendOrUpdate
Perform Site TestWeb / APIHTTP RequestSee node parameters
For Each Site...RoutingLoop Over ItemsSee node parameters
Status RouterRoutingSwitchSee node parameters

Setup

  1. Download the JSON and import it into an isolated n8n instance. Leave the workflow inactive.
  2. Connect your own credentials through n8n’s credential store. Replace REPLACE_WITH_* values with your resource identifiers.
  3. Inspect API destinations, Code nodes, database queries, file paths, and outbound actions.
  4. Run with synthetic data and harmless destinations. Enable triggers only after checking the actual outputs.

Requirements

An n8n instance with the listed node types and compatible versions. Service-connected workflows may require accounts, credentials, or paid APIs.

Credential types declared in the source

  • gmailOAuth2
  • googleSheetsOAuth2Api
  • slackApi

Workflow notes

1. Setting a Schedule

1. Setting a Schedule

Read more about Scheduling Workflows

Since we expect downtime to be a rare occurance, our monitor should only check infrequently during the day. We'll use a schedule trigger for this purpose.

Once the schdule activates, we'll pull a list of sites to check from our google sheet.

2. Perform Site Checks

2. Perform Site Checks

Read more about using HTTP requests

n8n makes it easy to communicate with external websites by offering a powerful HTTP request node which can handle GET and POST requests as well as pagination.

Here, we're only interested in the status code of our requests.

3. Sending Alerts and Logging Results

3. Sending Alerts and Logging Results

Read more about using Switch for powerful control flow

The switch node is powerful control flow tool that makes your workflows smart. Here, we're able to use Switch to trigger alert notifications whenever we have DOWN status or whenever we get a status change.

We store the event in our Sites Google Sheet and update the site's status which will be used to calculate our state on the next scheduled run.

Try It Out!

Try It Out!

Thie workflow showcases how you can build a simple website monitoring service using Scheduled Triggers and the HTTP Requests node.

Need Help?

Join the Discord or ask in the Forum!

Happy Hacking!

🚨Google Sheet Required!

🚨Google Sheet Required!

You'll need the following columns:

  • Property - the website address to monitor
  • Status - either one of "UP" or "DOWN"
Thie workflow showcases how you can build a simple website monitoring service using Scheduled Triggers and the HTTP Requests node.

Thie workflow showcases how you can build a simple website monitoring service using Scheduled Triggers and the HTTP Requests node.

Purpose and structure

This folder contains the Thie workflow showcases how you can build a simple website monitoring service using Scheduled Triggers and the HTTP Requests node. workflow. Its executable nodes use gmail, googleSheets, httpRequest, scheduleTrigger, set, slack, splitInBatches, switch. The table and connection map below are derived from the JSON, not an inferred guarantee of behavior.

Setup

Import inactive. Configure your own credentials and replace REPLACE_WITH_* values. Review external destinations and Code nodes before running.

Entry points

Schedule Trigger

Verification

Sanitized source candidate; not runtime-tested. This overview is generated from node metadata. Read the folder README for the connection map, credential types, and license.

Attribution

https://github.com/Zie619/n8n-workflows/blob/94007c1445d9258a7da116646b79473e7c7c3282/workflows/Schedule/0529_Schedule_Slack_Update_Webhook.json MIT; preserve source notices.

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