# Northline WebKit – Domain Report

> Northline WebKit – Domain Report is a paid API for AI agents from northline-webkit.northline-c86.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-31).

Returns a comprehensive one-call domain report including HTTPS status, security headers grade, WHOIS/registration age, DNS, uptime, and risk flags for a given domain.

## Facts

- Endpoint: GET https://northline-webkit.northline-c86.workers.dev/v1/domain/report?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/northline-webkit-domain-report-8918a067
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2Xzd8TNHGhvbWR7nHGNib

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability northline-webkit-domain-report-8918a067
```

Example prompt: Can you pull a full domain report for stripe.com — I want to see its HTTPS status, security headers grade, how old the registration is, and any risk flags?

## When to prefer this

Use this endpoint when you need a comprehensive, single-call domain intelligence report covering security, registration, DNS, and uptime — rather than calling separate endpoints for each signal. Ideal for due diligence workflows, phishing investigation, vendor vetting, or pre-launch audits. Prefer over individual DNS/WHOIS/uptime endpoints when you want a holistic domain health snapshot in one request. Pay-per-call with no API key required makes it suitable for low-volume or one-off agent tasks.

## Known failure modes

- Invalid or non-existent domain returns an error or empty result
- Domain with no HTTPS may return null/missing https fields
- Very new domains may have incomplete WHOIS/RDAP data
- Rate limits or payment failures (x402) result in 402 Payment Required
- Network timeouts for slow or unresponsive domains

## How this service works

Pay-per-call web and domain utilities for AI agents: URL to Markdown, link preview metadata, links, uptime/redirect check, DNS, email-domain check, WHOIS/RDAP, robots.txt and a one-call domain report. x402 (USDC on Base), no API key, no signup.

## Output

A JSON object containing the queried domain name, HTTPS status code, security headers grade (e.g. 'A'), domain registration age in days, and an array of risk flags. Example: {domain: 'stripe.com', https: {status: 200, securityHeaders: {grade: 'A'}}, registration: {ageDays: 10000}, flags: []}

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "domain"
     ],
     "properties": {
      "domain": {
       "type": "string",
       "minLength": 3,
       "description": "Domain name, e.g. example.com"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "flags": [],
  "https": {
   "status": 200,
   "securityHeaders": {
    "grade": "A"
   }
  },
  "domain": "stripe.com",
  "registration": {
   "ageDays": 10000
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/northline-webkit-domain-report-8918a067/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from northline-webkit.northline-c86.workers.dev](https://www.zero.xyz/host/northline-webkit.northline-c86.workers.dev/llms.txt)