# SE Ranking, free trial, GET /v1/backlinks/authority/domain: Domain authority API

> Returns the Domain InLink Rank value of the target page’s root domain.

SE Ranking's domain authority API on its Free trial plan. It costs $0.00 per 1,000 domains. It returns none of the 5 key fields we check: Authority score, Spam score, Backlinks, Referring domains and Referring pages.
We rank 38 plans by price. [DataForSEO's top-up from $50](https://datacircle.dev/domain-authority-apis/dataforseo/top-up-from-50-pay-as-you-go-post-v3-backlinks-bulk-ranks-live/llms.txt) costs the least per 1,000 domains: $0.036.

- This page: https://datacircle.dev/domain-authority-apis/se-ranking/free-trial-get-v1-backlinks-authority-domain
- Get it: https://seranking.com/api-pricing.html
- Request: `GET https://api.seranking.com/v1/backlinks/authority/domain`
- API key: with the plan, on https://seranking.com/api-pricing.html
- Its API docs: https://seranking.com/api/data/backlinks/#authority-domain
- Sold by: SE Ranking (https://seranking.com)
- Checked: 2026-10-29

## In the answer

- Completeness: 0%

## Price

- $ per 1,000 domains: $0.00
- Per: result
- Billing: free

## Charges

- Also pays for: from the same budget: Backlinks API · Domain Research API · Keyword Research API · Website Audit API · AI Search API

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Returns the Domain InLink Rank value of the target page’s root domain.

## Data

- Freshness: 1 month
- Keep data: no limit
- Use data: Customer may use the data obtained through the Provider API for commercial purposes, including internal analytics, client SEO audits, or reporting, provided such use complies with this Agreement and does not fall under the restricted use cases outlined below. [...] Any access to or use of the Provider API by a direct competitor of SE Ranking requires Provider’s explicit written consent. [...] The following use cases require Provider’s prior written consent: (1) Embedding raw or substantially similar API metrics inside a paid SaaS product, including white-label dashboards, API-based widgets, or multi-tenant products, (2) Reselling, sublicensing, or bulk redistribution of API data, including data-as-a-service offerings, data feeds, or mirroring Provider’s datasets or databases, (3) Use of API data to train public machine learning or language models.

## Plan

- Pay: $0
- You get: 100,000 credits
- Enough for: 20,000 results, once
- Expires: 14 days

## Rate limit

- Per second: 1
- Batch: 100

## The call

- You send: target (a domain)
- Method: GET
- Path: /v1/backlinks/authority/domain

## About the plan

- Plan: Free trial
- Who can get it: anyone who confirms an email address, a direct competitor of SE Ranking excepted

## The 2 fields the plan's answer can hold

URL, domain authority

## SE Ranking's plans (6)

- [SE Ranking, free trial, GET /v1/backlinks/authority/domain](https://datacircle.dev/domain-authority-apis/se-ranking/free-trial-get-v1-backlinks-authority-domain/llms.txt): $0.00 per 1,000, 0% complete, 1 month
- [SE Ranking, top-up from $50, Wallet, GET /v1/backlinks/authority/domain](https://datacircle.dev/domain-authority-apis/se-ranking/top-up-from-50-wallet-get-v1-backlinks-authority-domain/llms.txt): $1.00 per 1,000, 0% complete, 1 month
- [SE Ranking, $29 monthly, Add-on, monthly billing, GET /v1/backlinks/authority/domain](https://datacircle.dev/domain-authority-apis/se-ranking/29-monthly-add-on-monthly-billing-get-v1-backlinks-authority-domain/llms.txt): $0.967 per 1,000, 0% complete, 1 month
- [SE Ranking, $540 yearly, Add-on, annual billing, GET /v1/backlinks/authority/domain](https://datacircle.dev/domain-authority-apis/se-ranking/540-yearly-add-on-annual-billing-get-v1-backlinks-authority-domain/llms.txt): 0% complete, 1 month
- [SE Ranking, $2,148 yearly, Standalone, GET /v1/backlinks/authority/domain](https://datacircle.dev/domain-authority-apis/se-ranking/2148-yearly-standalone-get-v1-backlinks-authority-domain/llms.txt): 0% complete, 1 month
- [SE Ranking, contact us, Enterprise, GET /v1/backlinks/authority/domain](https://datacircle.dev/domain-authority-apis/se-ranking/contact-us-enterprise-get-v1-backlinks-authority-domain/llms.txt): 0% complete, 1 month

## SE Ranking's calls for this API (2)

- `GET /v1/backlinks/summary`: [SE Ranking, free trial, GET /v1/backlinks/summary](https://datacircle.dev/domain-authority-apis/se-ranking/free-trial-get-v1-backlinks-summary/llms.txt)
- `GET /v1/backlinks/authority/domain`: [SE Ranking, free trial, GET /v1/backlinks/authority/domain](https://datacircle.dev/domain-authority-apis/se-ranking/free-trial-get-v1-backlinks-authority-domain/llms.txt)

## SE Ranking's APIs (5)

- [SE Ranking: keyword research API pricing, 6 plans](https://datacircle.dev/keyword-research-apis/se-ranking/free/llms.txt)
- [SE Ranking: ranked keywords API pricing, 6 plans](https://datacircle.dev/ranked-keywords-apis/se-ranking/free/llms.txt)
- [SE Ranking: backlink API pricing, 6 plans, GET /v1/backlinks/raw](https://datacircle.dev/backlink-apis/se-ranking/free-trial-get-v1-backlinks-raw/llms.txt)
- [SE Ranking: backlink API pricing, 6 plans, GET /v1/backlinks/all](https://datacircle.dev/backlink-apis/se-ranking/free-trial-get-v1-backlinks-all/llms.txt)
- [SE Ranking: domain authority API pricing, 6 plans, GET /v1/backlinks/authority/domain](https://datacircle.dev/domain-authority-apis/se-ranking/free-trial-get-v1-backlinks-authority-domain/llms.txt)
- [SE Ranking: related keywords API pricing, 6 plans, GET /v1/keywords/questions](https://datacircle.dev/related-keywords-apis/se-ranking/free-trial-get-v1-keywords-questions/llms.txt)
- [SE Ranking: related keywords API pricing, 6 plans, GET /v1/keywords/related](https://datacircle.dev/related-keywords-apis/se-ranking/free-trial-get-v1-keywords-related/llms.txt)
- [SE Ranking: related keywords API pricing, 6 plans, GET /v1/keywords/similar](https://datacircle.dev/related-keywords-apis/se-ranking/free-trial-get-v1-keywords-similar/llms.txt)

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-29.

- https://help.seranking.com/hc/en-us/articles/21487397355420-API-pricing
- https://seranking.com/api-pricing.html
- https://seranking.com/api/api-credits-system
- https://seranking.com/api/data/backlinks/
- https://seranking.com/api/rate-limits
- https://seranking.com/api/usage-guidelines-for-commercial-purposes
- https://seranking.com/legal/api-terms-of-service.html