Monitor If a Page Is Alive and Notify via Twilio SMS If Not

The workflow JSON

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{
  "id": "ppsHlJlSpHPQJp4Q",
  "tags": [],
  "nodes": [
    {
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      "name": "Schedule Trigger",
      "type": "n8n-nodes-base.scheduleTrigger",
      "position": [
        -1100,
        -540
      ],
      "parameters": {
        "rule": {
          "interval": [
            {
              "field": "minutes"
            }
          ]
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "456b6ea3-1360-4a6c-a862-84c022db78e4",
      "name": "HTTP Request",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        -740,
        -540
      ],
      "parameters": {
        "url": "",
        "options": {
          "response": {
            "response": {
              "fullResponse": true
            }
          }
        }
      },
      "typeVersion": 4.2
    },
    {
      "id": "d1155cfc-c27a-40c5-8d70-c0705ce24c9b",
      "name": "Twilio",
      "type": "n8n-nodes-base.twilio",
      "position": [
        -240,
        -520
      ],
      "parameters": {
        "to": "",
        "from": "",
        "message": "Service Down",
        "options": {}
      },
      "credentials": {
        "twilioApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "f4a781ab-96bf-4801-95d4-df8f8fbd1f8a",
      "name": "If",
      "type": "n8n-nodes-base.if",
      "position": [
        -520,
        -540
      ],
      "parameters": {
        "options": {},
        "conditions": {
          "options": {
            "version": 2,
            "leftValue": "",
            "caseSensitive": true,
            "typeValidation": "strict"
          },
          "combinator": "and",
          "conditions": [
            {
              "id": "75b05c45-447e-407b-847f-5ed909b3c325",
              "operator": {
                "type": "number",
                "operation": "equals"
              },
              "leftValue": "={{ $json.statusCode }}",
              "rightValue": 200
            }
          ]
        }
      },
      "typeVersion": 2.2
    }
  ],
  "active": true,
  "settings": {
    "executionOrder": "v1"
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  "versionId": "1918412f-8dd2-404c-ad68-0b48f09ff7fc",
  "connections": {
    "If": {
      "main": [
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        [
          {
            "node": "Twilio",
            "type": "main",
            "index": 0
          }
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      ]
    },
    "HTTP Request": {
      "main": [
        [
          {
            "node": "If",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Schedule Trigger": {
      "main": [
        [
          {
            "node": "HTTP Request",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}

Credentials you'll need

Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.

• twilioApi

About this workflow

This workflow periodically checks a service's availability and sends an SMS notification if the service is down.

Source: https://n8n.io/workflows/2524/ — original creator credit. Request a take-down →

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