# Bulk Domain Authority Checker: Rank, Backlinks & Age (`scrapemint/domain-authority-checker`) Actor

Check thousands of domains in one run: 0-100 authority score, referring subnets and IPs (backlink strength), Majestic, Tranco and Cisco Umbrella top-1M ranks, daily rank change, domain age, expiry and registrar. For SEO agencies, link builders and domain investors. No API key.

- **URL**: https://apify.com/scrapemint/domain-authority-checker.md
- **Developed by:** [Ken M](https://apify.com/scrapemint) (community)
- **Categories:** SEO tools, Marketing
- **Features:** Limited permissions
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

$2.00 / 1,000 domain checkeds

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.

Learn more: https://docs.apify.com/actors/running/actors-in-store.md#pay-per-event

## What's an Apify Actor?

An Actor is a serverless cloud program that runs on the Apify platform. It has two run modes.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.

Apify vocabulary and the platform model are defined once, in the agent quickstart at https://apify.com/agents.md.

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For examples already wired to this Actor's own input schema, see the [API](#api) section below.

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).

# README

## Bulk Domain Authority Checker: Rank, Backlinks & Age

Check the authority of thousands of domains in one run, without a Moz, Ahrefs or Semrush subscription. For every domain you get a 0-100 authority score, the number of referring IP subnets and IPs linking to it (the backbone of backlink strength), its rank in three public top-1M lists, yesterday-to-today rank movement, and the domain's age, expiry date and registrar.

Built on free, daily-updated data:

- **Majestic Million**: ranks the top 1 million domains by referring subnets. Gives referring subnets, referring IPs and yesterday's rank.
- **Tranco**: research-grade popularity rank averaged over 30 days.
- **Cisco Umbrella**: popularity by DNS queries.
- **RDAP** (the official successor to WHOIS): registration date, expiry and registrar.
- **Wayback Machine** (optional): when the site was first archived.

No API key, no login, no browser.

### Who uses it

- **Link builders and outreach teams**: rank a list of prospect sites by authority before you pitch
- **SEO agencies**: benchmark clients against competitors, or audit a backlink export in bulk
- **Domain investors**: age, registrar, expiry and link strength for a list of names
- **Sales and partnerships**: prioritize a lead list by how established each company's site is

### What you get

One row per domain:

- `authorityScore` (0-100) and `authorityTier` (elite / high / medium / low / unranked)
- `linkScore`: 0-100 from referring subnets, on a log scale where the #1 domain is 100
- `popularityScore`: 0-100 from Tranco rank (rank 1 = 100, rank 1,000,000 = 0)
- `referringSubnets`, `referringIps`, `referringSubnetsChange` (vs. yesterday)
- `majesticRank`, `majesticRankChange` (positive = moved up), `majesticTldRank`
- `trancoRank`, `umbrellaRank`, `inTop1M`, `rankedAs` (a subdomain falls back to its parent domain's ranks)
- `domainCreatedAt`, `domainAgeYears`, `domainExpiresAt`, `registrar`
- `waybackFirstSeen` (when enabled)

`authorityScore` is 70% link score and 30% popularity score when both are available, otherwise whichever exists. Domains outside all three top-1M lists are `unranked`: they are small sites, and you still get their age and registrar.

### Example input

```json
{
  "domains": ["apify.com", "shopify.com", "ahrefs.com", "https://blog.hubspot.com/marketing"],
  "includeDomainAge": true,
  "includeWaybackFirstSeen": false
}
```

### Example output

```json
{
  "domain": "shopify.com",
  "authorityScore": 78,
  "authorityTier": "high",
  "linkScore": 85,
  "popularityScore": 63,
  "referringSubnets": 67346,
  "majesticRank": 91,
  "majesticRankChange": 1,
  "trancoRank": 171,
  "umbrellaRank": 1805,
  "inTop1M": true,
  "domainAgeYears": 21.7,
  "registrar": "MarkMonitor Inc."
}
```

### Pricing

Pay per domain checked. Domains with no data at all and invalid inputs are free, and the first 2 domains of every run are free. One run can check up to 100,000 domains.

### Notes

- Ranks and link counts cover the top 1 million sites. Smaller sites show `unranked`; there is no free source of backlink data below that line.
- The authority score is our own metric built from public data. It is not Moz DA or Ahrefs DR, but it ranks sites in a similar order.
- Some country TLDs (for example .so and .io) publish no RDAP data, so age and registrar are empty for them.
- See how a site looked over time with [Website History Checker](https://apify.com/scrapemint/website-history-checker), or what it runs on with [Website Tech Stack Detector](https://apify.com/scrapemint/website-tech-stack-detector).

# Actor input Schema

## `domains` (type: `array`):

Domains or URLs to check, e.g. apify.com, https://www.shopify.com/blog. Paths and www are stripped.

## `includeDomainAge` (type: `boolean`):

Look up the registration record (RDAP) for each domain.

## `includeWaybackFirstSeen` (type: `boolean`):

Add the date the Internet Archive first saved the site. Slower: about 1-3 seconds per domain.

## `maxRows` (type: `integer`):

Cap on domains checked. Controls cost.

## Actor input object example

```json
{
  "domains": [
    "apify.com",
    "shopify.com",
    "notion.so",
    "ahrefs.com"
  ],
  "includeDomainAge": true,
  "includeWaybackFirstSeen": false,
  "maxRows": 5000
}
```

# Actor output Schema

## `domains` (type: `string`):

Authority score and tier, referring subnets and IPs, Majestic, Tranco and Umbrella ranks, domain age and registrar.

## `summary` (type: `string`):

Domains checked, ranked and unranked, and the date of each source list.

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {
    "domains": [
        "apify.com",
        "shopify.com",
        "notion.so",
        "ahrefs.com"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("scrapemint/domain-authority-checker").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = { "domains": [
        "apify.com",
        "shopify.com",
        "notion.so",
        "ahrefs.com",
    ] }

# Run the Actor and wait for it to finish
run = client.actor("scrapemint/domain-authority-checker").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{
  "domains": [
    "apify.com",
    "shopify.com",
    "notion.so",
    "ahrefs.com"
  ]
}' |
apify call scrapemint/domain-authority-checker --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,scrapemint/domain-authority-checker"
        }
    }
}
```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/isB46vlPadwyRhdB5/builds/rS5deIMoViQGFSRha/openapi.json