Domain Authority Checker – Bulk Rank API

Domain authority checker for bulk lists via API: a domain rank score (0–100 or 0–1000) for many domains in one run. Optional backlinks and referring domains. Built for SEO audits, prospect lists and AI agents. Data from the DataForSEO Backlinks API (bulk endpoints only — up to 1,000 domains per request). No Ahrefs login.

What does it do?

• Normalize and deduplicate input domains (strip https://, www., paths).
• By default call DataForSEO bulk_ranks only (one cheap bulk request per batch).
• Optionally (includeBacklinksSummary) also call bulk_backlinks + bulk_referring_domains — still batched, never one-by-one.
• Configurable safety limit (maxDomains, max 1,000).
• Rank on a 0–100 or 0–1000 scale.
• Clear errors for invalid domains or API failures without leaking credentials.

Use cases

• SEO audits: score competitor or client domains in bulk with a domain authority checker.
• Link building / outreach: prioritize prospects by rank (and optional referring-domain count).
• Content & AEO research: compare authority across a topic cluster.
• AI agents: call via Apify API or MCP to enrich domain lists (JSON, MCP-ready).

Input

Field	Description
domains	List of domains to check (normalized, deduplicated). Example: example.com
maxDomains	Hard cap of domains processed per run (max 1000 per API batch). Example: 200
rankScale	Scale for the domain rank score (one_hundred or one_thousand). Example: one_hundred
includeBacklinksSummary	Optional. Also fetch bulk backlinks and referring domains (extra PPE events). Off by default. Example: false

Example input:

{
  "domains": [
    "example.com",
    "google.com",
    "wikipedia.org",
    "github.com",
    "stackoverflow.com"
  ],
  "maxDomains": 10,
  "rankScale": "one_hundred",
  "includeBacklinksSummary": false
}

Output

Real output (sample from a prior run on 27 Oct 2026, Europe/Madrid):

[
  {
    "domain": "example.com",
    "rank": 90,
    "rankScale": "0-100",
    "backlinks": 86957605,
    "referringDomains": 472165,
    "referringMainDomains": 369275,
    "referringDomainsNofollow": 98839,
    "source": "DataForSEO Backlinks API",
    "error": null
  },
  {
    "domain": "google.com",
    "rank": 100,
    "rankScale": "0-100",
    "backlinks": 20736254639,
    "referringDomains": 23519879,
    "referringMainDomains": 19230527,
    "referringDomainsNofollow": 1645302,
    "source": "DataForSEO Backlinks API",
    "error": null
  }
]

Export as JSON, CSV or Excel, read through the API, or send to Google Sheets, Make, Zapier, n8n or webhooks. You can also run this Actor from AI agents through the Apify MCP server.

Pricing

Pay per event: $1.00 / 1,000 domain results (+ $0.04 per bulk batch; +$0.00005 start). With backlinks: +$0.06/batch + $0.002/domain. There is no extra platform usage charge beyond Apify’s normal platform fees if any apply to your plan.

FAQ

Do I need an Ahrefs or Moz login? No. Rank and optional backlink summaries come from DataForSEO bulk endpoints via this Actor. You only need an Apify account.

What does the rank score mean? It is DataForSEO’s domain rank on the scale you choose (0–100 or 0–1000). It is useful for relative comparisons, not a Moz DA clone.

Are backlinks included by default? No. Set includeBacklinksSummary to true to also fetch bulk backlinks and referring domains (extra PPE events).

Can AI agents use it? Yes. Call it through the Apify API, or from Claude, Cursor or any MCP client via the Apify MCP server. Output is JSON.

Data source and license

Source: DataForSEO Backlinks API (bulk_ranks / bulk_backlinks / bulk_referring_domains). Not affiliated with DataForSEO, Ahrefs or Moz. You are responsible for using the data in line with DataForSEO’s terms.

This Actor is not affiliated with or endorsed by the data source. You are responsible for using the data in line with the source's license and terms.