Backlinq
For Developers

Backlink data. No platform tax.

Four focused GET endpoints. Single API key. Pay only for what you query. No Ahrefs subscription, no enterprise sales call, no bloated dashboard you'll open twice. fetch() and go.

Start coding freeRead the docs
example.js
// One fetch call. Zero friction.
const res = await fetch(
  "https://api.backlinq.dev/domain-authority?domain=example.com",
  { headers: { "X-API-Key": process.env.BACKLINQ_API_KEY }}
);

const data = await res.json();
// { domainAuthority: 87, pageRank: 6, spamScore: 2 }
Why Developers Choose Backlinq

Built for how you build

Clean REST API

Four GET endpoints with query params and consistent JSON responses. Integrate in minutes, not days.

No Auth Friction

Single API key, no OAuth dance, no refresh tokens. Add X-API-Key to your header and go.

Great Documentation

Clear docs with examples in cURL, JavaScript, Python, Go, Ruby, and PHP.

Instant Access

Sign up, get your API key, make your first request in under 3 minutes. No sales calls.

Pay for What You Use

30 requests free. Pro at $49/month, Scale at $129/month. No subscription that charges you whether you query or not.

SDKs Coming Soon

Native SDKs for JavaScript, Python, Go, and Ruby are on the roadmap. The REST API is ready today.

4 Endpoints

Just the data you need. Nothing else.

All GET requests with query params. Pass your domain, get structured JSON back. No request bodies, no complex flows.

GET/domain-authority
?domain=stripe.com

DA score, PageRank, global rank, and spam score for any domain.

Response
{
  "domain": "stripe.com",
  "domainAuthority": 94,
  "pageRank": 8,
  "globalRank": 892,
  "spamScore": 1
}
GET/backlinks
?domain=stripe.com&limit=50

Total backlinks, referring domain count, and top linking URLs.

Response
{
  "domain": "stripe.com",
  "backlinks": 2450000,
  "referringDomains": 125000,
  "topLinks": [{
    "url": "https://github.com/stripe",
    "title": "Stripe on GitHub"
  }]
}
GET/referring-domains
?domain=stripe.com&limit=50

Deduplicated list of external domains linking to the target.

Response
{
  "domain": "stripe.com",
  "domains": [
    "github.com",
    "stackoverflow.com",
    "medium.com"
  ],
  "total": 125000
}
GET/compare
?domains=stripe.com,paypal.com

Side-by-side authority comparison for 2–5 domains, ranked by DA.

Response
{
  "comparison": [
    {
      "domain": "stripe.com",
      "da": 94,
      "pr": 8
    }, {
      "domain": "paypal.com",
      "da": 91,
      "pr": 8
    }
  ]
}

Stop paying for the platform. Start paying for the data.

30 free requests. No credit card. Four endpoints live in minutes. Ahrefs API starts at $449/month, Backlinq starts at free.

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