SSL Expiry Alert
Configured with Gmail, Google Sheets, HTTP Request, Schedule Trigger. Review the connections and setup before adapting this template.
Node categories in this workflow
- Data store
- Trigger
- Web / API
- Routing
- Messaging
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.
| Node | Category | Type | Operation |
|---|---|---|---|
| URLs to Monitor | Data store | Google Sheets | update |
| Weekly Trigger | Trigger | Schedule Trigger | See node parameters |
| Fetch URLs | Data store | Google Sheets | See node parameters |
| Check SSL | Web / API | HTTP Request | See node parameters |
| Expiry Alert | Routing | If | See node parameters |
| Send Alert Email | Messaging | Gmail | See node parameters |
Setup
- Download the JSON and import it into an isolated n8n instance. Leave the workflow inactive.
- Connect your own credentials through n8n’s credential store. Replace
REPLACE_WITH_*values with your resource identifiers. - Inspect API destinations, Code nodes, database queries, file paths, and outbound actions.
- 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
gmailOAuth2googleSheetsOAuth2Api
Workflow notes
Sticky Note
Triggers the workflow once a week.
Sticky Note1
Pulls the list of URLs to monitor from the Google Sheet. Ensure you clone the Google Sheet worksheet and update this node with its URL.
Sticky Note2
Uses SSL-Checker.io to verify the SSL certificate of each URL. Fetches details like the host, validity period, and days remaining until expiry.
Sticky Note3
Updates the Google Sheet with SSL details, including the expiry date and certificate status.
Sticky Note4
Checks if any SSL certificate is set to expire in 7 days or less.
Sticky Note5
Sends an email alert if an SSL certificate is nearing expiry, including the host and days remaining.
SSL Expiry Alert
SSL Expiry Alert
Purpose and structure
This folder contains the SSL Expiry Alert workflow. Its executable nodes use gmail, googleSheets, httpRequest, if, scheduleTrigger. 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
Weekly 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/1614_Schedule_HTTP_Send_Webhook.json MIT; preserve source notices.