This article provides a complete, practical walkthrough of the Telegram Schedule Monitor Webhook n8n agent. It connects HTTP Request, Webhook across approximately 1 node(s). Expect a Intermediate setup in 15-45 minutes. One‑time purchase: €29.

What This Agent Does

This agent orchestrates a reliable automation between HTTP Request, Webhook, handling triggers, data enrichment, and delivery with guardrails for errors and rate limits.

It streamlines multi‑step processes that would otherwise require manual exports, spreadsheet cleanup, and repeated API requests. By centralizing logic in n8n, it reduces context switching, lowers error rates, and ensures consistent results across teams.

Typical outcomes include faster lead handoffs, automated notifications, accurate data synchronization, and better visibility via execution logs and optional Slack/Email alerts.

How It Works

The workflow uses standard n8n building blocks like Webhook or Schedule triggers, HTTP Request for API calls, and control nodes (IF, Merge, Set) to validate inputs, branch on conditions, and format outputs. Retries and timeouts improve resilience, while credentials keep secrets safe.

Third‑Party Integrations

• HTTP Request
• Webhook

Import and Use in n8n

1. Open n8n and create a new workflow or collection.
2. Choose Import from File or Paste JSON.
3. Paste the JSON below, then click Import.
4. Show n8n JSON

   Title:  
   Automated Website Monitoring with n8n: A No-Code Health Check Using Google Sheets and Telegram
   
   Meta Description:  
   Learn how to automate website uptime monitoring using n8n with this no-code workflow. Fetch URLs from Google Sheets and receive real-time alerts via Telegram when your sites go down.
   
   Keywords:  
   n8n workflow, website monitoring, health check, Google Sheets, Telegram API, no-code automation, uptime checker, HTTP status, automation tools, website health alert, Telegram bot alert
   
   Third-Party APIs Used:
   
   1. Google Sheets API (via n8n Google Sheets Node)
   2. Telegram Bot API (via n8n Telegram Node)
   
   Article:
   
   In today’s fast-paced digital world, ensuring your website is always online and functioning properly is critical for user satisfaction and business continuity. Downtime, even for a few minutes, can cause lost revenue, damaged reputation, and missed opportunities. For developers, marketers, and IT teams alike, monitoring websites typically involves either expensive SaaS tools or complex custom scripts. But what if you could set up a fully automated website health check using a no-code, open-source tool like n8n?
   
   In this article, we’ll walk you through an efficient and scalable n8n workflow named "MAIA - Health Check" that periodically checks the availability of websites listed in a Google Sheet and alerts you via Telegram when an issue is detected.
   
   💡 Overview of the Workflow
   
   This n8n automation consists of six functional nodes and two informative sticky notes. Here's a step-by-step explanation of how this health check system works:
   
   1. Schedule Trigger — The workflow uses a Schedule Trigger Node to initiate the process at specified time intervals, currently set to run every few minutes.
   2. Fetch URLs — The next step pulls a list of URLs from a specified Google Sheet using Google Sheets API. Column A of the sheet contains the list of websites to monitor.
   3. HTTP Request — Each URL is then checked using an HTTP Request Node that attempts to reach the website. If any issue arises—such as a timeout or HTTP status error—the workflow continues, capturing the error without stopping.
   4. Telegram Notification — If an error is encountered during the status check, an alert message is sent via Telegram to a predefined chat ID. The message includes the problematic URL and the corresponding error code.
   5. NoOp Node — A “do nothing” placeholder represents the successful execution path when no further action is needed.
   6. Sticky Notes — These nodes serve as workflow documentation, giving users hints and guidance on setup steps, including how to configure Google Sheets and Telegram.
   
   Let’s dive into how you can replicate and configure this automation to suit your own monitoring needs.
   
   🚀 Step 1: Set Up Your Google Sheet
   
   Create a new Google Sheet for storing URLs. In column A, starting from cell A2, list all the websites you want to monitor. The cell A1 is used as a title.
   
   This feed can be collaborative or dynamic, allowing multiple team members to add or remove URLs without touching the workflow configuration itself—making it ideal for distributed operations.
   
   🔗 Step 2: Connect n8n to Google Sheets
   
   Using the n8n Google Sheets Node, the workflow fetches this list each time it runs. You’ll need to authenticate with Google OAuth2 to grant n8n access to your spreadsheet.
   
   The workflow references the active sheet using its document ID:  
   17-tY9_wn-D2FV627Sx3-Z3abqFYvz794edej7es5J6w  
   
   📡 Step 3: Perform the Health Check
   
   The “Check URL” node sends an HTTP GET request to each URL. Should the request fail—for instance, due to DNS issues, site downtime, or other network problems—this node passes the error details forward thanks to the configuration "onError": "continueErrorOutput." This ensures that a failed ping doesn’t halt the entire workflow.
   
   ✉️ Step 4: Get Telegram Alerts
   
   The Telegram node notifies you when any site fails its health check. It sends a custom message like:
   
   Health Check:  http://example.com  
   ECONNREFUSED (or other error code)
   
   You can customize the message to include a timestamp or additional diagnostic data if needed. This node requires a bot token and the intended chat ID. You can easily substitute Telegram with Slack, Discord, or even email notifications.
   
   📋 Customization and Scalability
   
   This workflow is highly adaptable to other use cases:
   
   - Instead of simply reporting errors, you can log them to another Google Sheet for records.
   - Add conditional logic for different alert levels based on HTTP status codes.
   - Integrate downtime statistics into a dashboard using tools like Grafana or Firebase.
   
   🛠 Technologies and APIs Used
   
   This low-code automation is enabled by:
   
   - Google Sheets API via n8n’s native integration to dynamically fetch URLs.
   - Telegram Bot API to send instant alerts about failed health checks.
   
   ➡️ Final Words
   
   “MAIA - Health Check” is a powerful, easy-to-deploy n8n workflow that keeps your websites under constant surveillance—all without writing a single line of code. This automation empowers tech and non-tech teams alike to manage uptime more proactively.
   
   Need to check five sites or 500? Just drop them into your Google Sheet, and the workflow takes care of the rest.
   
   By leveraging free-to-use platforms like Telegram and Google Sheets, this solution proves that effective system monitoring doesn’t have to be expensive—or complicated.
   
   Ready to build your own website watchdog? Try it in n8n today and rest easy knowing your uptime is in good hands.
   
   🔗 Bonus Tip: For added resilience, use multiple alert channels, such as email or Slack, to ensure no warning goes unnoticed.
   
   Happy monitoring!

5. Set credentials for each API node (keys, OAuth) in Credentials.
6. Run a test via Execute Workflow. Inspect Run Data, then adjust parameters.
7. Enable the workflow to run on schedule, webhook, or triggers as configured.

Tips: keep secrets in credentials, add retries and timeouts on HTTP nodes, implement error notifications, and paginate large API fetches.

Validation: use IF/Code nodes to sanitize inputs and guard against empty payloads.

Why Automate This with AI Agents

AI‑assisted automations offload repetitive, error‑prone tasks to a predictable workflow. Instead of manual copy‑paste and ad‑hoc scripts, your team gets a governed pipeline with versioned state, auditability, and observable runs.

n8n’s node graph makes data flow transparent while AI‑powered enrichment (classification, extraction, summarization) boosts throughput and consistency. Teams reclaim time, reduce operational costs, and standardize best practices without sacrificing flexibility.

Compared to one‑off integrations, an AI agent is easier to extend: swap APIs, add filters, or bolt on notifications without rewriting everything. You get reliability, control, and a faster path from idea to production.

Best Practices

• Credentials: restrict scopes and rotate tokens regularly.
• Resilience: configure retries, timeouts, and backoff for API nodes.
• Data Quality: validate inputs; normalize fields early to reduce downstream branching.
• Performance: batch records and paginate for large datasets.
• Observability: add failure alerts (Email/Slack) and persistent logs for auditing.
• Security: avoid sensitive data in logs; use environment variables and n8n credentials.

FAQs

Can I swap integrations later? Yes. Replace or add nodes and re‑map fields without rebuilding the whole flow.

How do I monitor failures? Use Execution logs and add notifications on the Error Trigger path.

Does it scale? Use queues, batching, and sub‑workflows to split responsibilities and control load.

Is my data safe? Keep secrets in Credentials, restrict token scopes, and review access logs.