# DNS Lookup (`delightful_unicorn/siteintel-domain-api`) Actor

DNS records, SSL certificates, and HTTP health checks for any domain — no external APIs required. Built for SEO agencies, DevOps teams, and developers who need fast, reliable domain intelligence.

- **URL**: https://apify.com/delightful\_unicorn/siteintel-domain-api.md
- **Developed by:** [Alessandro Amato](https://apify.com/delightful_unicorn) (community)
- **Categories:** Developer tools, Automation, Other
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, NaN bookmarks
- **User rating**: No ratings yet

## Pricing

from $3.50 / 1,000 results

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.

Learn more: https://docs.apify.com/platform/actors/running/actors-in-store#pay-per-event

## What's an Apify Actor?

Actors are a software tools running on the Apify platform, for all kinds of web data extraction and automation use cases.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.
Actors are written with capital "A".

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.
The best way to integrate Actors is as follows.

In JavaScript/TypeScript projects, use official [JavaScript/TypeScript client](https://docs.apify.com/api/client/js.md):

```bash
npm install apify-client
```

In Python projects, use official [Python client library](https://docs.apify.com/api/client/python.md):

```bash
pip install apify-client
```

In shell scripts, use [Apify CLI](https://docs.apify.com/cli/docs.md):

````bash
# MacOS / Linux
curl -fsSL https://apify.com/install-cli.sh | bash
# Windows
irm https://apify.com/install-cli.ps1 | iex
```bash

In AI frameworks, you might use the [Apify MCP server](https://docs.apify.com/platform/integrations/mcp.md).

If your project is in a different language, use the [REST API](https://docs.apify.com/api/v2.md).

For usage examples, see the [API](#api) section below.

For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt).


# README

## SiteIntel Domain Intelligence API

**DNS records, SSL certificates, and HTTP health checks for any domain — no external APIs required.**

Instant domain intelligence using only built-in Node.js modules. Zero API keys, zero rate limits, zero dependencies. Built for SEO agencies, DevOps teams, and developers who need fast, reliable domain intelligence.

### Features

- 🌐 **DNS Records** — A, AAAA, MX, TXT, NS, CNAME, SOA lookups
- 🔒 **SSL Certificate** — Expiry date, issuer, subject, days remaining, SAN
- 🩺 **HTTP Health** — Status code, response time, redirect chain, security headers
- 📊 **Domain Intel** — Combined DNS + SSL + HTTP report with summary
- 🎯 **IP Resolve** — Hostname to IP (v4/v6)
- 🔄 **Reverse DNS** — IP to hostname

### Actions

| Action | Input | Description |
|--------|-------|-------------|
| `dnsRecords` | `domain`, `records` | DNS record lookup |
| `sslCertificate` | `domain` | SSL certificate inspection |
| `httpHealth` | `domain`, `followRedirects` | HTTP status and health check |
| `domainIntel` | `domain`, `records`, `followRedirects` | Combined full report |
| `ipResolve` | `domain` | Resolve hostname to IPs |
| `reverseDns` | `ip` | Reverse lookup IP to hostname |

### Example Input

```json
{
  "action": "domainIntel",
  "domain": "apify.com"
}
````

### Example Output

```json
{
  "success": true,
  "action": "domainIntel",
  "timestamp": "2026-05-01T12:00:00Z",
  "data": {
    "domain": "apify.com",
    "dns": { "A": { "found": true, "records": ["3.165.239.90"], "count": 1 } },
    "ssl": {
      "found": true,
      "subject": { "commonName": "*.apify.com" },
      "issuer": { "commonName": "Amazon RSA 2048 M02" },
      "daysRemaining": 121,
      "isExpired": false
    },
    "http": {
      "found": true,
      "statusCode": 200,
      "isUp": true,
      "responseTimeMs": 20
    },
    "summary": {
      "dnsResolved": true,
      "hasSSL": true,
      "sslValid": true,
      "websiteUp": true,
      "gdprScore": { "value": 9, "max": 10, "rating": "strong" }
    }
  }
}
```

### Pricing

- **Pay Per Event**
- `apify-actor-start`: $0.0005
- `result`: $0.0005
- **~$1.00 per 1,000 requests**

### Notes

- Uses only Node.js built-in modules (`dns`, `tls`, `https`).
- No external API keys or rate limits.
- Each run takes <100ms — extremely low CU cost.

# Actor input Schema

## `action` (type: `string`):

The intelligence endpoint to call.

## `domain` (type: `string`):

Domain or hostname to analyze (e.g., example.com). Required for dnsRecords, sslCertificate, httpHealth, domainIntel, ipResolve.

## `ip` (type: `string`):

IPv4 or IPv6 address for reverse DNS lookup. Required for reverseDns action.

## `records` (type: `string`):

Which DNS record types to query, e.g. A,AAAA,MX,TXT,NS. Only used with dnsRecords action.

## `followRedirects` (type: `boolean`):

Follow HTTP redirects and return the redirect chain. Only used with httpHealth.

## `timeout` (type: `integer`):

Timeout for network requests in milliseconds.

## Actor input object example

```json
{
  "action": "domainIntel",
  "domain": "apify.com",
  "ip": "104.18.24.100",
  "records": "A,AAAA,MX,TXT,NS",
  "followRedirects": true,
  "timeout": 10000
}
```

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {
    "domain": "apify.com",
    "ip": "104.18.24.100",
    "records": "A,AAAA,MX,TXT,NS"
};

// Run the Actor and wait for it to finish
const run = await client.actor("delightful_unicorn/siteintel-domain-api").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = {
    "domain": "apify.com",
    "ip": "104.18.24.100",
    "records": "A,AAAA,MX,TXT,NS",
}

# Run the Actor and wait for it to finish
run = client.actor("delightful_unicorn/siteintel-domain-api").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print("💾 Check your data here: https://console.apify.com/storage/datasets/" + run["defaultDatasetId"])
for item in client.dataset(run["defaultDatasetId"]).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{
  "domain": "apify.com",
  "ip": "104.18.24.100",
  "records": "A,AAAA,MX,TXT,NS"
}' |
apify call delightful_unicorn/siteintel-domain-api --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "command": "npx",
            "args": [
                "mcp-remote",
                "https://mcp.apify.com/?tools=delightful_unicorn/siteintel-domain-api",
                "--header",
                "Authorization: Bearer <YOUR_API_TOKEN>"
            ]
        }
    }
}

```

## OpenAPI specification

```json
{
    "openapi": "3.0.1",
    "info": {
        "title": "DNS Lookup",
        "description": "DNS records, SSL certificates, and HTTP health checks for any domain — no external APIs required. Built for SEO agencies, DevOps teams, and developers who need fast, reliable domain intelligence.",
        "version": "1.0",
        "x-build-id": "o7dGoBagdZaC1KZRy"
    },
    "servers": [
        {
            "url": "https://api.apify.com/v2"
        }
    ],
    "paths": {
        "/acts/delightful_unicorn~siteintel-domain-api/run-sync-get-dataset-items": {
            "post": {
                "operationId": "run-sync-get-dataset-items-delightful_unicorn-siteintel-domain-api",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor, waits for its completion, and returns Actor's dataset items in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK"
                    }
                }
            }
        },
        "/acts/delightful_unicorn~siteintel-domain-api/runs": {
            "post": {
                "operationId": "runs-sync-delightful_unicorn-siteintel-domain-api",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor and returns information about the initiated run in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK",
                        "content": {
                            "application/json": {
                                "schema": {
                                    "$ref": "#/components/schemas/runsResponseSchema"
                                }
                            }
                        }
                    }
                }
            }
        },
        "/acts/delightful_unicorn~siteintel-domain-api/run-sync": {
            "post": {
                "operationId": "run-sync-delightful_unicorn-siteintel-domain-api",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK"
                    }
                }
            }
        }
    },
    "components": {
        "schemas": {
            "inputSchema": {
                "type": "object",
                "required": [
                    "action"
                ],
                "properties": {
                    "action": {
                        "title": "Action",
                        "enum": [
                            "dnsRecords",
                            "sslCertificate",
                            "httpHealth",
                            "domainIntel",
                            "ipResolve",
                            "reverseDns"
                        ],
                        "type": "string",
                        "description": "The intelligence endpoint to call.",
                        "default": "domainIntel"
                    },
                    "domain": {
                        "title": "Domain / Hostname",
                        "type": "string",
                        "description": "Domain or hostname to analyze (e.g., example.com). Required for dnsRecords, sslCertificate, httpHealth, domainIntel, ipResolve."
                    },
                    "ip": {
                        "title": "IP Address",
                        "type": "string",
                        "description": "IPv4 or IPv6 address for reverse DNS lookup. Required for reverseDns action."
                    },
                    "records": {
                        "title": "DNS Record Types (comma-separated)",
                        "type": "string",
                        "description": "Which DNS record types to query, e.g. A,AAAA,MX,TXT,NS. Only used with dnsRecords action.",
                        "default": "A,AAAA,MX,TXT,NS"
                    },
                    "followRedirects": {
                        "title": "Follow Redirects",
                        "type": "boolean",
                        "description": "Follow HTTP redirects and return the redirect chain. Only used with httpHealth.",
                        "default": true
                    },
                    "timeout": {
                        "title": "Request Timeout (ms)",
                        "type": "integer",
                        "description": "Timeout for network requests in milliseconds.",
                        "default": 10000
                    }
                }
            },
            "runsResponseSchema": {
                "type": "object",
                "properties": {
                    "data": {
                        "type": "object",
                        "properties": {
                            "id": {
                                "type": "string"
                            },
                            "actId": {
                                "type": "string"
                            },
                            "userId": {
                                "type": "string"
                            },
                            "startedAt": {
                                "type": "string",
                                "format": "date-time",
                                "example": "2025-01-08T00:00:00.000Z"
                            },
                            "finishedAt": {
                                "type": "string",
                                "format": "date-time",
                                "example": "2025-01-08T00:00:00.000Z"
                            },
                            "status": {
                                "type": "string",
                                "example": "READY"
                            },
                            "meta": {
                                "type": "object",
                                "properties": {
                                    "origin": {
                                        "type": "string",
                                        "example": "API"
                                    },
                                    "userAgent": {
                                        "type": "string"
                                    }
                                }
                            },
                            "stats": {
                                "type": "object",
                                "properties": {
                                    "inputBodyLen": {
                                        "type": "integer",
                                        "example": 2000
                                    },
                                    "rebootCount": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "restartCount": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "resurrectCount": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "computeUnits": {
                                        "type": "integer",
                                        "example": 0
                                    }
                                }
                            },
                            "options": {
                                "type": "object",
                                "properties": {
                                    "build": {
                                        "type": "string",
                                        "example": "latest"
                                    },
                                    "timeoutSecs": {
                                        "type": "integer",
                                        "example": 300
                                    },
                                    "memoryMbytes": {
                                        "type": "integer",
                                        "example": 1024
                                    },
                                    "diskMbytes": {
                                        "type": "integer",
                                        "example": 2048
                                    }
                                }
                            },
                            "buildId": {
                                "type": "string"
                            },
                            "defaultKeyValueStoreId": {
                                "type": "string"
                            },
                            "defaultDatasetId": {
                                "type": "string"
                            },
                            "defaultRequestQueueId": {
                                "type": "string"
                            },
                            "buildNumber": {
                                "type": "string",
                                "example": "1.0.0"
                            },
                            "containerUrl": {
                                "type": "string"
                            },
                            "usage": {
                                "type": "object",
                                "properties": {
                                    "ACTOR_COMPUTE_UNITS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_WRITES": {
                                        "type": "integer",
                                        "example": 1
                                    },
                                    "KEY_VALUE_STORE_LISTS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_INTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_EXTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_RESIDENTIAL_TRANSFER_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_SERPS": {
                                        "type": "integer",
                                        "example": 0
                                    }
                                }
                            },
                            "usageTotalUsd": {
                                "type": "number",
                                "example": 0.00005
                            },
                            "usageUsd": {
                                "type": "object",
                                "properties": {
                                    "ACTOR_COMPUTE_UNITS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_WRITES": {
                                        "type": "number",
                                        "example": 0.00005
                                    },
                                    "KEY_VALUE_STORE_LISTS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_INTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_EXTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_RESIDENTIAL_TRANSFER_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_SERPS": {
                                        "type": "integer",
                                        "example": 0
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}
```
