Domain Similar API
Find similar companies and competitor domains based on any website domain via our RESTful API.
Real API data — no signup required
curl --request GET \
--url 'https://api.tomba.io/v1/domain-similar?domain=stripe.com' \
--header 'X-Tomba-Key: ta_xxxxxxxxxxxx' \
--header 'X-Tomba-Secret: ts_xxxxxxxxxxxx'{
"data": [
{
"domain": "square.com",
"company": "Square",
"industry": "Financial Technology",
"headcount": "5001-10000"
},
{
"domain": "adyen.com",
"company": "Adyen",
"industry": "Payment Processing",
"headcount": "1001-5000"
}
]
}Based on verified reviews
The Most Reliable Domain Similar API API
Tomba has the largest B2B email crawler on the web. We process billions of pages monthly so you always get the freshest, most accurate data.
Independent 5,000-Lead Benchmark
Same input file, same conditions, every provider. Raw results, no spin.
Anymailfinder
Findymail
GetProspect
Skrapp
Hunter
VoilaNorbert
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ProspeoMore Data, Less Money — No One Comes Close
Every plan includes free verification credits, phone data, and credits that never expire.
Integrate Domain Similar API in Your Language
Install Tomba in your language. 10 official SDKs, all open-source on GitHub.
Domain Similar API API Features
Similar Domains
Find companies with similar products, services, and target markets to any given domain.
Company Data
Each similar domain includes company name, industry, size, and location.
Website Info
Domain URL, description, and technology overlap for each match.
Relevance Score
Similarity scoring based on industry, content, technology, and audience overlap.
Competitor Discovery
Discover direct competitors and adjacent companies in the same market.
Bulk Available
Find similar domains for multiple queries via Bulk Similar Domain API.
Account-Based Marketing
Build lookalike audiences by finding companies similar to your best customers.
Real-Time Results
Fresh similarity analysis from our continuously updated 70M+ domain database.
Related API Endpoints
Start using the Domain Similar API API
Get your API key and start making requests in minutes. 25 free credits — no credit card required.