Typosquatting Detector API — Find Lookalike Domains

Description

Generate and check common typosquatting variations of a domain — character swaps, missing characters, doubled characters, homoglyphs, and TLD variations. Identify registered lookalike domains that could be used for phishing.

Use Cases

Brand protection — find domains impersonating your brand
Phishing detection — identify suspicious lookalike domains
Proactive security — register common typos before attackers do
Trademark enforcement support

Parameters

Name	Type	Required	Description
`domain`	string	Yes	Domain name to check for typosquats
`format`	string	No	Response format: json or markdown

Example Request

bash

curl -H 'X-API-Key: YOUR_KEY' \
  'https://api.example.com/dns/typosquat?domain=example.com'

python

import httpx

resp = httpx.get(
    "https://api.example.com/dns/typosquat?domain=example.com",
    headers={"X-API-Key": "YOUR_KEY"},
)
print(resp.json())

javascript

const resp = await fetch("https://api.example.com/dns/typosquat?domain=example.com", {
  headers: { "X-API-Key": "YOUR_KEY" },
});
const data = await resp.json();
console.log(data);

Example Response

json

{
  "domain": "example.com",
  "typosquats_found": 3,
  "variations_checked": 85,
  "registered": [
    {"domain": "exampel.com", "type": "character_swap", "has_dns": true},
    {"domain": "example.co", "type": "tld_variation", "has_dns": true}
  ]
}

Typosquatting Detector

Description

Use Cases

Parameters

Related Tools in Security

DNS Health Audit

SSL/TLS Certificate Inspector

DNSSEC Validation

Zone Transfer Test