Domains

The Domains API gives you access to data on millions of indexed websites. You can look up individual domains, search with filters, or fetch multiple domains at once.

The domain model

Each domain object contains metadata about a website including its title, language, categories, technologies used, and traffic rank.

Properties

Name
name
Type
string
Description
The domain name (e.g., "wordpress.org").
Name
title
Type
string
Description
The page title of the website.
Name
meta_description
Type
string
Description
The meta description of the website, if available.
Name
language
Type
string
Description
The primary language of the website (ISO 639-1 code).
Name
categories
Type
string[]
Description
Array of content categories the site belongs to.
Name
technologies
Type
string[]
Description
Array of technologies detected on the site.
Name
id
Type
integer
Description
Unique internal identifier for the domain.
Name
rank
Type
integer
Description
Traffic rank of the domain (1 = highest traffic).

GET/json/api/v1/domain/:name

Get a domain

Retrieve detailed information about a specific domain by name.

Path parameters

Name
name
Type
string
Description
The domain name to look up (e.g., "wordpress.org").

Request

GET

/json/api/v1/domain/:name

curl -s https://websitedata.app/json/api/v1/domain/wordpress.org \
  -H "Authorization: Bearer {your-api-key}"

Response

{
  "domain": {
    "name": "wordpress.org",
    "title": "Blog Tool, Publishing Platform, and CMS – WordPress.org",
    "meta_description": "San Francisco Dec 2, 2025 | Learn more Watch State of the Word, the annual keynote address live from San Francisco. December 2nd at 8PM UTC. Catch up on all the news about WordPress from State of the Word 2025, San Francisco. Meet WordPress The open source publishing platform of choice for millions of websites…",
    "language": "en",
    "categories": [
      "/Business & Industrial",
      "/Internet & Telecom/Web Services/Web Design & Development",
      "/Internet & Telecom",
      "/Internet & Telecom/Web Services"
    ],
    "technologies": [
      "Google Ads Pixel",
      "Google Adsense",
      "Google Tag Manager",
      "Wordpress"
    ],
    "tld1": "wordpress.org",
    "id": 143304499,
    "rank": 17
  }
}

POST/json/api/v1/domain/search

Search domains

Search across all indexed domains with optional filters and cursor-based pagination. Results are ordered by traffic rank by default.

Request body

Name
pageSize
Type
integer
Description
Number of results to return per page. Maximum depends on your plan.
Name
searchAfter
Type
array
Description
Cursor from a previous response to fetch the next page.

Response fields

Name
results
Type
Domain[]
Description
Array of domain objects matching your query.
Name
search_after
Type
array
Description
Cursor value for fetching the next page.
Name
total
Type
integer
Description
Total number of matching domains.

Request

POST

/json/api/v1/domain/search

curl -s -X POST https://websitedata.app/json/api/v1/domain/search \
  -H "Authorization: Bearer {your-api-key}" \
  -H "Content-Type: application/json" \
  -d '{"pageSize": 2}'

Response

{
  "results": [
    {
      "name": "www.youtube.com",
      "title": "YouTube",
      "meta_description": "Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.",
      "language": "en",
      "categories": [
        "/Arts & Entertainment/Online Media",
        "/Arts & Entertainment",
        "/Arts & Entertainment/TV & Video/Online Video",
        "/Arts & Entertainment/TV & Video"
      ],
      "technologies": [
        "Google Tag Manager",
        "YouTube Player"
      ],
      "tld1": "youtube.com",
      "id": 143805739,
      "rank": 1
    },
    {
      "name": "www.wikipedia.org",
      "title": "Wikipedia",
      "meta_description": "Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.",
      "language": "en",
      "categories": [
        "/Reference",
        "/Reference/General Reference"
      ],
      "tld1": "wikipedia.org",
      "id": 149070280,
      "rank": 2
    }
  ],
  "search_after": [
    2,
    149070280
  ],
  "total": 193933606
}

POST/json/api/v1/domain/bulk

Bulk lookup

Fetch data for multiple domains in a single request. Domains not found in the index are silently omitted from the response.

Request body

Name
domains
Type
string[]
Description
Array of domain names to look up. Maximum 100 domains per request.

Request

POST

/json/api/v1/domain/bulk

curl -s -X POST https://websitedata.app/json/api/v1/domain/bulk \
  -H "Authorization: Bearer {your-api-key}" \
  -H "Content-Type: application/json" \
  -d '{"domains": ["wordpress.org", "github.com"]}'

Response

{
  "domains": [
    {
      "name": "wordpress.org",
      "title": "Blog Tool, Publishing Platform, and CMS – WordPress.org",
      "meta_description": "San Francisco Dec 2, 2025 | Learn more Watch State of the Word, the annual keynote address live from San Francisco. December 2nd at 8PM UTC. Catch up on all the news about WordPress from State of the Word 2025, San Francisco. Meet WordPress The open source publishing platform of choice for millions of websites…",
      "language": "en",
      "categories": [
        "/Business & Industrial",
        "/Internet & Telecom/Web Services/Web Design & Development",
        "/Internet & Telecom",
        "/Internet & Telecom/Web Services"
      ],
      "technologies": [
        "Google Ads Pixel",
        "Google Adsense",
        "Google Tag Manager",
        "Wordpress"
      ],
      "tld1": "wordpress.org",
      "id": 143304499,
      "rank": 17
    },
    {
      "name": "github.com",
      "title": "GitHub · Change is constant. GitHub keeps you ahead. · GitHub",
      "meta_description": "Join the world's most widely adopted, AI-powered developer platform where millions of developers, businesses, and the largest open source community build software that advances humanity.",
      "language": "en",
      "categories": [
        "/Science/Computer Science",
        "/Science",
        "/Computers & Electronics/Programming",
        "/Computers & Electronics",
        "/Computers & Electronics/Software"
      ],
      "technologies": [
        "Contentful"
      ],
      "tld1": "github.com",
      "id": 61838105,
      "rank": 14
    }
  ]
}