preflight derived

{
  "input": {
    "body": {
      "url": "https://example.com/contact"
    },
    "type": "http",
    "method": "POST",
    "bodyType": "json"
  },
  "output": {
    "type": "json",
    "example": {
      "http": {
        "status": 200,
        "contentType": "text/html; charset=utf-8",
        "redirectCount": 0
      },
      "page": {
        "formsFound": 1,
        "spaMarkers": [],
        "iframeCount": 0,
        "scriptCount": 2,
        "captchaMarkers": []
      },
      "forms": [
        {
          "index": 0,
          "action": "https://example.com/contact/submit",
          "fields": [
            {
              "id": "contact-email",
              "max": null,
              "min": null,
              "name": "email",
              "step": null,
              "type": "email",
              "label": "Email address",
              "value": "",
              "checked": false,
              "options": null,
              "pattern": null,
              "disabled": false,
              "multiple": false,
              "required": true,
              "maxLength": 254,
              "minLength": null,
              "placeholder": "you@example.com",
              "autocomplete": "email",
              "selectedValues": null
            },
            {
              "id": "plan",
              "max": null,
              "min": null,
              "name": "plan",
              "step": null,
              "type": "select",
              "label": "Plan",
              "value": "pro",
              "checked": false,
              "options": [
                {
                  "text": "Basic",
                  "label": null,
                  "value": "basic",
                  "disabled": false,
                  "selected": false
                },
                {
                  "text": "Pro",
                  "label": null,
                  "value": "pro",
                  "disabled": false,
                  "selected": true
                }
              ],
              "pattern": null,
              "disabled": false,
              "multiple": false,
              "required": true,
              "maxLength": null,
              "minLength": null,
              "placeholder": null,
              "autocomplete": null,
              "selectedValues": [
                "pro"
              ]
            }
          ],
          "method": "POST",
          "enctype": "application/x-www-form-urlencoded",
          "fieldCount": 4,
          "hasFileUpload": false,
          "submitControls": 1,
          "hasPasswordField": false,
          "standardHttpSubmission": true
        }
      ],
      "finalUrl": "https://example.com/contact",
      "fetchedAt": "2026-09-23T10:00:00.000Z",
      "limitations": [
        "Static initial HTML only; page JavaScript is not executed.",
        "Use agentVerdict.verdict for the preferred three-state routing result; browserLikelyRequired remains for backward compatibility and false can also mean undetermined.",
        "This service inspects structure only and does not submit forms or perform actions."
      ],
      "agentVerdict": {
        "reasons": [
          "At least one static GET/POST form can be described from the initial HTML without executing page JavaScript."
        ],
        "verdict": "http_candidate",
        "confidence": "high",
        "browserLikelyRequired": false
      },
      "requestedUrl": "https://example.com/contact",
      "networkSafety": {
        "fetchDnsChecks": 2,
        "initialDnsCheck": {
          "families": [
            4,
            6
          ],
          "allPublic": true,
          "addressCount": 2
        },
        "redirectTargetsRechecked": true,
        "postFetchDnsPublicRecheck": true
      }
    }
  }
}