What technologies can be detected?

Over 1,000 technologies including CMS (WordPress, Shopify), frameworks (React, Angular, Vue), analytics (Google Analytics, Mixpanel), marketing (HubSpot, Marketo), hosting (AWS, Cloudflare), and many more.

What data is returned per technology?

Slug, name, icon filename, official website URL, description, and an array of categories with ID, slug, and name.

How many credits per request?

None. The technology lookup is free; it only needs a search credit balance above zero.

How accurate is the detection?

Our detection engine analyzes HTTP headers, HTML source, JavaScript libraries, DNS records, and other signals for high accuracy. Results are verified against known technology fingerprints.

Can I use this for lead scoring?

Yes. Filter prospects by technology stack target companies using specific CRMs, analytics tools, or frameworks relevant to your product.

What categories are available?

Categories include analytics, JavaScript libraries, JavaScript graphics, e-commerce, CMS, CDN, hosting, marketing automation, and many more.

What SDKs are available?

13 official SDKs: C#, Dart, Deno, Elixir, Go, Lua, Node.js, Perl, PHP, Python, R, Ruby and Rust.

// get /v1/technology

Technology Checker API

Detect all technologies used by any website domain. Returns each technology with name, icon, description, website, and categorized tags.

Get free API key API reference

Free

// api console

Example response from the API reference

[0].slug: intercom
[0].name: Intercom
[0].icon: Intercom.png
[0].website: https://www.intercom.com
[0].categories: 1 item

// 01 · request

Technology is one HTTPS request

Send the parameters with your key and secret. Every SDK, the CLI and the MCP server make this same call.

GET/technologyParameter

domainrequired: Website domain

GET /technology

curl "https://api.tomba.io/v1/technology?domain=piedpiper.com" \
  -H "X-Tomba-Key: $TOMBA_API_KEY" \
  -H "X-Tomba-Secret: $TOMBA_SECRET_KEY"

const res = await fetch("https://api.tomba.io/v1/technology?domain=piedpiper.com", {
  headers: {
    "X-Tomba-Key": process.env.TOMBA_API_KEY,
    "X-Tomba-Secret": process.env.TOMBA_SECRET_KEY
  }
});
const { data } = await res.json();

import os, requests

res = requests.get(
    "https://api.tomba.io/v1/technology?domain=piedpiper.com",
    headers={
        "X-Tomba-Key": os.environ["TOMBA_API_KEY"],
        "X-Tomba-Secret": os.environ["TOMBA_SECRET_KEY"],
    },
)
data = res.json()["data"]

// 02 · response

What comes back

JSON, the same in every language. Fields Tomba doesn't know are null, never guessed.

GET/technologyField

data[]array | null: Each technology the website runs; null when none is detected
data[].slug, data[].namestring: Its identifier and name
data[].icon, data[].websitestring: Its icon file and website
data[].categories[]array: Its categories, each with an id, slug and name
domainstring: The domain you sent

GET /technology

200 OK· Free

{
  "domain": "piedpiper.com",
  "data": [
    {
      "slug": "intercom",
      "name": "Intercom",
      "icon": "Intercom.png",
      "website": "https://www.intercom.com",
      "categories": [
        {
          "id": 52,
          "slug": "live-chat",
          "name": "Live chat"
        }
      ]
    },
    {
      "slug": "google-analytics",
      "name": "Google Analytics",
      "icon": "Google Analytics.svg",
      "website": "https://marketingplatform.google.com/about/analytics",
      "categories": [
        {
          "id": 10,
          "slug": "analytics",
          "name": "Analytics"
        }
      ]
    }
  ]
}

// 03 · cost and limits

What a call costs

A call is charged only under the condition below. Rate limits depend on your plan.

// cost

Freefree

Charged when: Not charged; needs a positive search balance.

Errors, 429 and 451 responses, and the same request again within your usage window cost nothing.

How credits work

// rate limits

Requests per second / minute / day

	Free	Basic	Growth	Pro
Search, finder, similar, technology	1 / 2 / 5	3 / 50 / 500	5 / 80 / 1,000	8 / 150 / 4,000
Email verifier	1 / 2 / 10	2 / 40 / 500	3 / 60 / 1,000	5 / 100 / 4,000

Pro Plus, Scale and credit packs of 50,000 or more: no limit on these endpoints. Enterprise: no per-second or per-minute limit, 100,000 requests a day. Daily limits reset at 00:00 UTC. Rate limits

// faq

Technology Checker API Questions

Still have questions? Visit the help center

const res = await fetch("https://api.tomba.io/v1/email-finder?domain=piedpiper.com&first_name=Richard&last_name=Hendricks", { headers: { "X-Tomba-Key": process.env.TOMBA_API_KEY, "X-Tomba-Secret": process.env.TOMBA_SECRET_KEY } }); const { data } = await res.json();

import os, requests res = requests.get( "https://api.tomba.io/v1/email-finder?domain=piedpiper.com&first_name=Richard&last_name=Hendricks", headers={ "X-Tomba-Key": os.environ["TOMBA_API_KEY"], "X-Tomba-Secret": os.environ["TOMBA_SECRET_KEY"], }, ) data = res.json()["data"]

{ "data": { "email": "richard@piedpiper.com", "first_name": "Richard", "last_name": "Hendricks", "full_name": "Richard Hendricks", "website_url": "piedpiper.com", "company": "Pied Piper", "pattern": "{first}", "department": "executive", "type": "personal", "position": "CEO", "country": "US", "gender": "male", "twitter": null, "linkedin": "https://www.linkedin.com/in/richard-hendricks", "score": 100, "accept_all": false, "phone_number": true, "verification": { "date": "2025-01-15T10:32:00+01:00", "status": "valid" }, "sources": [ { "uri": "https://piedpiper.com/blog/engineering", "website_url": "piedpiper.com", "extracted_on": "2024-06-01T09:14:07+01:00", "last_seen_on": "2025-01-10T17:02:44+01:00", "still_on_page": true } ], "phone_data": [] } }

Technology Checker API

Technology is one HTTPS request

What comes back

What a call costs

Related endpoints

Technology Checker API Questions

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