Domain Authority Metrics — lookup domain scores

Domain Authority Checker API

What it does

Domain Authority Metrics lets you look up authority-style metrics for a domain name. Send a domain string and get back whether a match was found, the original query, and a result object when the domain exists in the source data.

The returned result includes the entity type and entity name, the canonical domain, the source_graph it came from, and several scoring fields: pr_pos, pr_val, pr_score_10, pr_score_10_bucket, harmonic_val, and authority_weight. If the lookup does not find a match, found is false and result is null.

Use Domain Authority Metrics when you need a quick signal for SEO analysis, competitive research, or domain ranking workflows. For example, you can enrich a list of domains before prioritising outreach, building backlink reports, or comparing site authority across a market segment.

The response is simple to consume in downstream automation: check found, read the returned query, and use the metric fields in your scoring or reporting logic.

What you'll get back

Returns a JSON object with query as a string and found as a boolean. When found is true, the object may also include result, which is either null or an object containing the authority metrics fields shown below.

{
  "query": "example.com",
  "found": true,
  "result": {
    "entity_type": "domain",
    "entity": "example.com",
    "domain": "example.com",
    "source_graph": "web",
    "pr_pos": 1,
    "pr_val": 0.42,
    "pr_score_10": 7.1,
    "pr_score_10_bucket": 7,
    "harmonic_val": 0.38,
    "authority_weight": 0.81
  }
}

About this endpoint

What it does

Looks up domain authority metrics for the domain you provide in the query string and returns whether a result was found. When a result is available, the response includes the queried domain, the original query string, and a metrics object.

Query Parameter(s)

Attribute	Type	Mandatory	Description
domain	String	Yes	Domain to look up. Minimum length: 1.

Response

Returns a JSON object with query as a string, found as a boolean, and result as a nullable object. query is required in the response schema, and found indicates whether metrics were found; result is present when available and contains the authority-metrics fields declared in the schema.

Parameter	Type	Mandatory	Description
query	String	Yes	The query string used for the lookup.
found	Boolean	Yes	Indicates whether a result was found.
result	Object	No	Metrics object returned when available. Contains `entity_type`, `entity`, `domain`, `source_graph`, `pr_pos`, `pr_val`, `pr_score_10`, `pr_score_10_bucket`, `harmonic_val`, and `authority_weight`. `host` is also defined and may be null.

Query parameters

Name

Type

Description

domainREQUIRED

string

—

Headers

Name

Type

Description

x-rapidapi-proxy-secretOPTIONAL

string

—

Domain Authority Checker API

What it does

Quickstart

What you'll get back

About this endpoint

What it does

Query Parameter(s)

Response

Query parameters

Headers

Errors any endpoint can return