SEO API · URL Backlinks

URL Backlinks

The top inbound links pointing at a specific page.

Page-level backlinks for a single URL: which pages link to it and with what anchor text. Same response shape as Website Backlinks, scoped to one page instead of the whole domain.

POST /api/v1/backlink/url $0.02 / request

Get API Key

Use your Seonio API key instantly.

Open Playground

curl

curl -X POST https://seonio.com/api/v1/backlink/url \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $SEONIO_API_KEY" \
  -d '{"target": "https://moz.com/beginners-guide-to-seo"}'

Sample response

{
  "backlinks": [
    {
      "anchor_text": "beginner\u0027s guide to SEO",
      "domain_source": "en.wikipedia.org",
      "url_source": "https://en.wikipedia.org/wiki/Search_engine_optimization",
      "url_target": "https://moz.com/beginners-guide-to-seo"
    },
    {
      "anchor_text": "Moz\u0027s SEO guide",
      "domain_source": "searchengineland.com",
      "url_source": "https://searchengineland.com/guide/what-is-seo",
      "url_target": "https://moz.com/beginners-guide-to-seo"
    }
  ],
  "source": "https://moz.com/beginners-guide-to-seo",
  "updated_at": "2026-06-30T12:00:00"
}

Request and response

The full contract for /api/v1/backlink/url — what to send and what comes back.

Request body

target string required

A full URL, e.g. "https://moz.com/blog".

Response fields

`source`	string	The domain or URL the backlinks point to.
`updated_at`	string \| null	When the backlink set was last refreshed (ISO 8601), or null for a completed lookup with no data.
`backlinks[]`	object[]	Inbound links, each as { domain_source, url_source, url_target, anchor_text }.
`backlinks[].domain_source`	string	The linking site's domain.
`backlinks[].url_source`	string	The exact page the link is on.
`backlinks[].url_target`	string	The page on your target the link points to.
`backlinks[].anchor_text`	string	The clickable anchor text of the link.

Code examples

Copy, paste, swap in your API key.

curl -X POST https://seonio.com/api/v1/backlink/url \
  -H "Content-Type: application/json" \
  -H "X-API-Key: YOUR_API_KEY" \
  -d '{"target": "https://moz.com/beginners-guide-to-seo"}'

import requests

resp = requests.post(
    "https://seonio.com/api/v1/backlink/url",
    headers={"X-API-Key": "YOUR_API_KEY"},
    json={"target": "https://moz.com/beginners-guide-to-seo"},
)
print(resp.json())

const resp = await fetch("https://seonio.com/api/v1/backlink/url", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    "X-API-Key": "YOUR_API_KEY",
  },
  body: JSON.stringify({"target": "https://moz.com/beginners-guide-to-seo"}),
});
console.log(await resp.json());

Playground

Run a real /api/v1/backlink/url request. No key? We show the real sample result so you can still inspect the shape.

API key

JSON body

Leave the API key empty to load the built-in sample response.

Request

POST /api/v1/backlink/url

sample mode

What developers build with it

Common ways URL Backlinks ends up in production.

Finding who links to a specific landing or resource page.

Replicating a top page's link sources for your own content.

Auditing anchor text at the page level.

Status codes

The same predictable contract on every endpoint.

`200`	Success. The lookup completed and was charged, even if the response is empty.
`401`	Missing or unknown API key.
`402`	Not enough balance on the account.
`422`	Invalid request body (wrong shape or types).
`429`	Rate limit exceeded (fixed-window default: 30 requests / 3 seconds).

Other endpoints

Explore the rest of the SEO API.

Keyword Research

/api/v1/keywords/global

Keyword Clustering

/api/v1/keywords/clustering

Keyword Suggestions

/api/v1/keywords/suggestions

Keyword Metrics by Country

/api/v1/keywords/country

SERP

/api/v1/serp/country

SERP Scraper

/api/v1/serp/scraper

Scraper

/api/v1/scraper

Website Traffic

/api/v1/website/traffic

Website Ranking

/api/v1/website/ranking

URL Stats

/api/v1/url/stats

Website Stats

/api/v1/website/stats

Website Backlinks

/api/v1/backlink/website

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FAQ

Simple answers for developers using the API.

Pricing & Balance

Every API endpoint has a fixed price in USD. Your requests are charged directly against your API balance, so you always know what each call costs.

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API & Integration

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