Template - SSL Expiry Alert System
Configured with Ntfy, Gmail, Google Sheets, HTTP Request, and additional nodes. 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 | appendOrUpdate |
| 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 |
| Switch | Routing | Switch | See node parameters |
| Send Alert Email2 | Messaging | Gmail | See node parameters |
| Send Alert Email4 | Messaging | Gmail | See node parameters |
| Send Alert Email6 | Messaging | Gmail | See node parameters |
| Ntfy4 | Messaging | Ntfy | See node parameters |
| Send Alert Email1 | Messaging | Gmail | See node parameters |
| Telegram | Messaging | Telegram | 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
gmailOAuth2googleSheetsOAuth2ApitelegramApi
Workflow notes
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 certificates and groups into:
- invalid (certificate invalid)
- warning (expires in <30 days)
- notice (expires in <60 days)
- info (everything else)
Sticky Note5
Invalid
Sticky Note10
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.
This is the Sheet Layout: A B C 1 URL 2 n8n.io 3 amazon.com 4 google.com 5 chat.openai.com
Sticky Note11
Triggers the workflow once a week.
Sticky Note8
Notice
Sticky Note
Warning
Sticky Note7
Info
SSL Expiry Alert System
SSL Expiry Alert System
Who is this for?
This workflow is ideal for administrators or IT professionals responsible for monitoring SSL certificates of multiple websites to ensure they do not expire unexpectedly.
Problem
SSL certificates play a crucial role in ensuring secure communication over the internet. However, if not monitored closely, they can expire, leading to potential security risks and service disruption. This workflow helps in proactively monitoring SSL certificate expiry dates.
Functionality
- Pulls URLs to monitor from a Google Sheet.
- Checks SSL certificates using SSL-Checker.io.
- Updates Google Sheet with SSL details such as expiry date and certificate status.
- Sends email alerts for SSL certificates nearing expiry (<30 days) or invalid certificates.
Setup
- Clone the provided Google Sheet and update the Google Sheet URL in the "URLs to Monitor" node.
- Set up Google Sheets and Gmail credentials in n8n.
- Configure the Discourse Trigger for weekly monitoring.
- Customize email alert settings as needed.
Customization
- Modify the frequency of monitoring by adjusting the trigger interval in the "Weekly Trigger" node.
- Customize email content and recipients in the "Send Alert Email" node.
- Extend functionality by adding additional checks or actions based on SSL certificate status.
Note
Ensure proper authentication and authorization for accessing Google Sheets, SSL-Checker.io, and Gmail accounts within the workflow.
Template - SSL Expiry Alert System
Template - SSL Expiry Alert System
Purpose and structure
This folder contains the Template - SSL Expiry Alert System workflow. Its executable nodes use Ntfy, gmail, googleSheets, httpRequest, scheduleTrigger, switch, telegram. 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/Telegram/1522_Telegram_Schedule_Send_Webhook.json MIT; preserve source notices.