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GET
/
v1
/
domain
/
{domain}
Get domain technologies API
curl --request GET \
  --url https://api.technologychecker.io/v1/domain/{domain} \
  --header 'Authorization: Bearer <token>'
{
  "success": true,
  "data": {
    "domain": "shopify.com",
    "active_technologies": [
      {
        "id": 2,
        "name": "Cloudflare",
        "category": "CDN",
        "first_seen": "2020-05-08 00:00:00",
        "last_seen": "2026-01-08 00:00:00",
        "subdomain": "SHOPIFY.COM"
      }
    ],
    "historical_technologies": [
      {
        "id": 2,
        "name": "Cloudflare",
        "category": "CDN",
        "first_seen": "2020-05-08 00:00:00",
        "last_seen": "2026-01-08 00:00:00",
        "subdomain": "SHOPIFY.COM"
      }
    ]
  }
}

Documentation Index

Fetch the complete documentation index at: https://technologychecker.io/docs/llms.txt

Use this file to discover all available pages before exploring further.

​
Frequently asked questions

This endpoint returns two arrays: active_technologies (currently detected on the domain) and historical_technologies (previously detected but no longer active). Each technology includes its name, category, first seen date, last seen date, and the subdomain where it was found.
Each domain lookup costs 1 credit. Results come from TechnologyChecker’s pre-crawled database of 50M+ domains, so responses are instant. If the domain isn’t in the database, you’ll get a 404. Try live detection instead (5 credits) for domains not yet crawled.
The endpoint accepts root domains (e.g., shopify.com). Technologies detected on subdomains are included in the response with the subdomain field showing where each technology was found. You don’t need to query subdomains individually.

Authorizations

​
Authorization
string
header
required

API key in format tapi_live_[32-char] (live) or tapi_test_[32-char] (test)

Path Parameters

​
domain
string
required

The domain to look up (e.g., shopify.com)

Example:

"shopify.com"

Response

Technology stack for the domain

​
success
boolean
Example:

true

​
data
object