Domain Checker API

DNS, SSL, HTTP, meta & WHOIS checks plus niche/category detection.

API FAQ
Get API Key Buy Credits
Best use-cases
Pre-screen leads/domains

Instantly validate DNS/SSL and basic content signals before outreach.

Traffic quality & compliance

Detect expired domains, thin content, or sensitive niches early.

Automation hooks

Score and route new domains by niche category and activity score.

Try Live
99.9 % Uptime
— Response
10 req/s
0.009 Credits / request

Check domain (DNS/SSL/HTTP/WHOIS) 


POST https://api.yeb.to/v1/domain/check
ParameterTypeReq.Description
api_key string yes Your API key
domain string yes Domain only, e.g. popnable.com
checks array opt Subset of ["dns","ssl","http","meta","length","whois"]
verbosity enum opt "result" | "compact" | "full" (default: "result")
timeout float opt HTTP timeout in seconds (optional)

Example

curl -X POST https://api.yeb.to/v1/domain/check \
  -H "Content-Type: application/json" \
  -d '{
  "api_key": "YOUR_KEY",
  "domain":  "popnable.com",
  "checks":  ["dns","ssl","http","meta","length","whois"],
  "verbosity": "result"
}'

Response Example

{
  "data": {
    "domain": "popnable.com",
    "timestamp_utc": "2025-09-22T15:50:31Z",
    "result": {
      "ssl":    { "valid": true, "days_left": 79, "valid_to": "2025-11-25T14:12:03Z" },
      "whois":  {
        "valid_domain": true,
        "expires_in_days": 301,
        "created": "2015-07-04T18:42:16Z",
        "updated": "2025-05-01T10:38:32Z",
        "registrar": "NameSilo, LLC",
        "name_servers_cnt": 2,
        "name_servers": ["ns1.example.net","ns2.example.net"]
      },
      "dns":   { "has_host_records": true, "ns_count": 2, "mx_count": 2 },
      "http":  { "status": 200, "final_url": "https://popnable.com/" },
      "content": { "thin_content": false, "has_content": true }
    },
    "evaluation": { "active": true, "score": 95 }
  }
}
{"error":"Missing \"domain\"","code":422}

Response Codes

CodeDescription
200 SuccessRequest processed OK.
400 Bad RequestInput validation failed.
401 UnauthorizedMissing / wrong API key.
403 ForbiddenKey inactive or not allowed.
429 Rate LimitToo many requests.
500 Server ErrorUnexpected failure.

Detect niche (title/description/keywords + domain) 


POST https://api.yeb.to/v1/domain/detect-niche
ParameterTypeReq.Description
api_key string yes Your API key
domain string yes Domain only, e.g. popnable.com
html string opt Optional pre-fetched HTML for analysis

Example

curl -X POST https://api.yeb.to/v1/domain/detect-niche \
  -H "Content-Type: application/json" \
  -d '{
  "api_key": "YOUR_KEY",
  "domain":  "popnable.com"
}'

Response Example

{
  "data": {
    "niche": "Music",
    "relevance": 97,
    "subniches": []
  }
}
{"error":"Missing \"domain\"","code":422}

Response Codes

CodeDescription
200 SuccessRequest processed OK.
400 Bad RequestInput validation failed.
401 UnauthorizedMissing / wrong API key.
403 ForbiddenKey inactive or not allowed.
429 Rate LimitToo many requests.
500 Server ErrorUnexpected failure.

List taxonomy categories (GENERAL/SENSITIVE) 


POST https://api.yeb.to/v1/domain/detect-category
ParameterTypeReq.Description
api_key string yes Your API key

Example

curl -X POST https://api.yeb.to/v1/domain/detect-category \
  -H "Content-Type: application/json" \
  -d '{
  "api_key": "YOUR_KEY"
}'

Response Example

{
  "data": {
    "GENERAL": ["News","Sports","Music","Movies","TV","Celebrities","Humor","Technology","Science","Education","Business","Finance","Careers","E-commerce","Travel","Food","Recipes","Restaurants","Real Estate","Automotive","Health","Wellness","Fitness","Lifestyle","Home & Garden","Parenting","Pets","Fashion","Beauty","Gaming","Apps","Software","Hardware","Gadgets","DevTools","Photography","Design","Art","Culture","Events","Communities","Blogs","Forum","Portfolio","Personal"],
    "SENSITIVE": ["Adult","Casino","Sports Betting","Poker","Lottery","Forex & High-risk Trading","Payday Loans","Debt Relief","Crypto","Tobacco & Vaping","Alcohol","Cannabis & CBD","Unlicensed Pharmacy","Firearms & Weapons","Hacking & Cracking","Pirated Content","Spyware / Malvertising","Misleading Health Claims","Political Advocacy / Persuasion","Extremism"]
  }
}
{"error":"Unauthorized","code":401}

Response Codes

CodeDescription
200 SuccessRequest processed OK.
400 Bad RequestInput validation failed.
401 UnauthorizedMissing / wrong API key.
403 ForbiddenKey inactive or not allowed.
429 Rate LimitToo many requests.
500 Server ErrorUnexpected failure.

Frequently Asked Questions

Yes. Every request, even those resulting in errors, consumes credits. This is because your credits are tied to the number of requests, regardless of success or failure. If the error is clearly due to a platform problem on our end, we will restore the affected credits (no cash refunds).

Contact us at [email protected]. We take feedback seriously—if your bug report or feature request is meaningful, we can fix or improve the API quickly and grant you 50 free credits as a thank you.

It depends on the API and sometimes even on the endpoint. Some endpoints use data from external sources, which may have stricter limits. We also enforce limits to prevent abuse and keep our platform stable. Check the docs for the specific rate limit for each endpoint.

We operate on a credit system. Credits are prepaid, non-refundable units you spend on API calls and tools. Credits are consumed FIFO (oldest first) and are valid for 12 months from the purchase date. The dashboard shows each purchase date and its expiry.

Yes. All purchased credits (including fractional balances) are valid for 12 months from purchase. Unused credits automatically expire and are permanently deleted at the end of the validity period. Expired credits cannot be restored or converted to cash or other value. Transitional rule: credits bought before 22 Sep 2025 are treated as purchased on 22 Sep 2025 and expire on 22 Sep 2026 (unless an earlier expiry was stated at purchase).

Yes—within their validity window. Unused credits remain available and roll over month-to-month until they expire 12 months after purchase.

Credits are non-refundable. Only buy what you need—you can always top up later. If a platform-side error causes a failed charge, we may restore the affected credits after investigation. No cash refunds.

Prices are set in credits, not dollars. Each endpoint lists its own cost—see the “Credits / request” badge above. You’ll always know exactly what you’re spending.
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