Backlink Check

Find possible backlinks to a domain from search results and web archives. Returns linking pages and available link details.

Pay by wallet (x402) backlink-check

Example

Input

{
  "domain": "google.com"
}

Answer

{
  "domain": "google.com",
  "backlinks": [
    {
      "first_seen": "20240223074906",
      "source_url": "http://www.google.com.",
      "anchor_text": null,
      "source_domain": "google.com."
    }
  ],
  "top_anchors": [],
  "total_backlinks": 1,
  "dofollow_estimate": null,
  "nofollow_estimate": null,
  "referring_domains_count": 1
}

Inputs

Field	Type	Required	What it is
`domain`	string	Yes	—

Output fields

How reliably each field appears in a successful answer.

Field	Type	Appears
`backlinks`	array	Always (present in every successful answer)
`top_anchors`	array	Always (present in every successful answer)
`total_backlinks`	number	Always (present in every successful answer)
`unresolved_link_count`	number	Always (present in every successful answer)
`referring_domains_count`	number	Always (present in every successful answer)

How to call it

The same tool through each route. MCP clients reach it through Strale’s server at https://api.strale.io/mcp; the call below is what the agent sends.

# Needs an API key. max_price_cents caps what this call may cost.
curl -X POST https://api.strale.io/v1/do \
  -H "Authorization: Bearer $STRALE_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "capability_slug": "backlink-check",
    "inputs": {
      "domain": "google.com"
    },
    "max_price_cents": 15
  }'

{
  "tool": "strale_execute",
  "arguments": {
    "slug": "backlink-check",
    "inputs": {
      "domain": "google.com"
    },
    "max_price_cents": 15
  }
}

import { Strale } from "straleio";

const strale = new Strale({ apiKey: process.env.STRALE_API_KEY! });
const result = await strale.do({
  capability_slug: "backlink-check",
  inputs: {
    "domain": "google.com"
  },
  max_price_cents: 15,
});

import os
from straleio import Strale, DoRequest

strale = Strale(api_key=os.environ["STRALE_API_KEY"])
result = strale.do(DoRequest(
    capability_slug="backlink-check",
    inputs={
        "domain": "google.com",
    },
    max_price_cents=15,
))

# No account. The first request answers 402 with the price in USDC;
# an x402 client pays it from your wallet and repeats the request.
curl -i 'https://api.strale.io/x402/v2/backlink-check?domain=google.com'

Limitations

Recent or niche backlinks can be missing
Uses CommonCrawl index data — covers a subset of the web and may miss recently created or niche backlinks
What to do instead: Check referring pages directly for recently created or missing backlinks.
API responses are limited to 4 MiB
API response bodies above 4 MiB are refused during download rather than parsed.