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Karma.Domains Backlink Checker for Expired Domains
x402
Karma.Domains Backlink Checker for Expired Domains is a paid API for AI agents from api.karma.domains, paid per call via x402, $1.5/call, status unknown (last checked 2026-10-16).
Returns backlink data for a given domain name, sourced from a database of 13M+ expired domains with SEO metrics
Price / call$1.5
Success—
StatusUnknown
How this service works
Find expired domain names with high traffic and strong SEO backlinks daily. Boost your revenue by searching our database of 13,000,000+ expired domains from auctions, backorders, and dropped lists—complete with rich metrics and domain age.
Output
A JSON object containing the queried domain name and an array of backlinks associated with it, sourced from Karma.Domains' database of expired domain SEO metrics. The backlinks array may include referring domains, anchor texts, and link quality signals depending on availability.
Example use cases
Pre-purchase expired domain SEO audit
“Before I bid on techblog.net at auction, can you pull its backlink data from Karma.Domains so I know if it has strong SEO value?”
PBN domain vetting for link building
“I'm building a private blog network — check the backlinks on vintage-recipes.com via Karma.Domains so I can decide if it's worth adding to my network.”
Competitor domain acquisition research
“A competitor's old domain marketingpro.io just expired — can you look up its backlink profile on Karma.Domains to see how authoritative it was?”
Technical details
Endpoint
GEThttps://api.karma.domains/v1/domains/checker/backlinks?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to evaluate the SEO backlink profile of a specific expired, dropped, or auctioned domain before purchasing it. It is ideal for SEO professionals, domain investors, and PBN builders who need quick per-domain backlink data without subscribing to full SEO suites like Ahrefs or Moz.
Side effects
- Missing 'domain' query parameter returns a validation error
- Invalid or malformed domain string may return empty backlinks array
- Domain not found in the 13M+ database returns empty backlinks
- Network timeout or upstream API unavailability
- Payment failure (HTTP 402) if x402 payment is not completed before request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"domain": "example.com",
"backlinks": []
}
}Tags
x402
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