# UnblockingAPI, free: Domain authority API

> Check the “authority” of your domain (as measured by Ahrefs). Returns all the statistics from the Ahrefs free tool.

UnblockingAPI's domain authority API on its Free plan. It costs $0.00 per 1,000 domains. UnblockingAPI's docs list 3 of the 5 key fields we check: Authority score, Backlinks, Referring domains.
We haven't run UnblockingAPI through [our domain authority API benchmark](https://datacircle.dev/best-domain-authority-api.txt) yet.
This plan is free. We rank 192 plans for domain authority APIs by price. Half the plans cost $2.991 per 1,000 domains or less.
[Morningscore's $69 monthly plan](https://datacircle.dev/domain-authority-apis/morningscore/69-monthly/llms.txt) is the cheapest paid plan per 1,000 domains. Morningscore's $69 monthly plan charges nothing per call. You get as many domains as Morningscore's rate limit allows.
[BacklinkMCP's $19 monthly plan](https://datacircle.dev/domain-authority-apis/backlinkmcp/19-monthly/llms.txt) covers any number of domains. BacklinkMCP's $19 monthly plan costs less up front than Morningscore's $69 monthly plan.
[AnyAPI](https://datacircle.dev/domain-authority-apis/anyapi/top-up-from-10-manual-top-up-post-v1-run-semrush-overview/llms.txt), [SE Ranking](https://datacircle.dev/domain-authority-apis/se-ranking/29-monthly-add-on-monthly-billing-get-v1-backlinks-authority-domain/llms.txt) and [DataForSEO](https://datacircle.dev/domain-authority-apis/dataforseo/top-up-from-50-pay-as-you-go-post-v3-backlinks-bulk-ranks-live/llms.txt) are the best domain authority API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/domain-authority-apis/unblockingapi/free
- [Domain authority API: the 4 best providers compared](https://datacircle.dev/best-domain-authority-api.txt)
- Get it: https://unblockingapi.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- Request: `GET https://api.unblockingapi.com/unblock`
- API key: with the plan, on https://unblockingapi.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- Its API docs: https://unblockingapi.com/templates/kjellberg/ahrefs-website-authority-checker?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- Sold by: UnblockingAPI (https://unblockingapi.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing)
- Checked: 2026-11-06

## In the answer

- Completeness: 60%
- Authority score: ✓
- Backlinks: ✓
- Referring domains: ✓

## Price

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

## Charges

- Also pays for: from the same budget: Fetch a URL · Google Search | Organic results · Bing

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Check the “authority” of your domain (as measured by Ahrefs). Returns all the statistics from the Ahrefs free tool.

## Data

- Freshness: live
- Keep data: no limit
- Use data: You are responsible for determining whether you have the right to access, collect, store, process, use or share any data fetched through UnblockingAPI. [...] You may not use the service for unauthorized access, private or logged-in content without permission, personal data harvesting, spam, fraud, malware, abusive traffic or any prohibited use described in our Acceptable Use Policy. [...] Acceptable Use Policy: "You may not use UnblockingAPI to access, collect, copy or process data in a way that violates applicable law, third-party rights, website terms, privacy rules or this policy. [...] You may not use UnblockingAPI to harvest, collect or enrich personal data in a way that violates applicable data protection laws or privacy rights. [...] You may not use UnblockingAPI to copy, store, reproduce, redistribute or commercially exploit content in violation of copyright, database rights, contractual rights, confidentiality obligations, privacy rights or other applicable rights."

## Plan

- Pay: $0
- You get: 500 credits
- Enough for: 500 calls

## Rate limit

- Concurrent: 25
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: url, template "kjellberg/ahrefs-website-authority-checker". Optional: render, location, wait_for, wait_min_ms, wait_state, scroll_steps, settle_ms, wait_rules, detect_ms, max_age
- Method: GET
- Path: /unblock

## About the plan

- Plan: Free
- Who can get it: anyone who creates an account and accepts the Terms of Service and Acceptable Use Policy, account verification may be required for production access or high-volume workloads

## The 6 fields the plan's answer can hold

domain, domain rating, backlinks, dofollow backlinks, referring domains, dofollow referring domains

## UnblockingAPI's plans (7)

- [UnblockingAPI, free](https://datacircle.dev/domain-authority-apis/unblockingapi/free/llms.txt): $0.00 per 1,000, 60% complete, live
- [UnblockingAPI, €10 pack](https://datacircle.dev/domain-authority-apis/unblockingapi/10-pack/llms.txt): $1.125 per 1,000, 60% complete, live
- [UnblockingAPI, €50 pack](https://datacircle.dev/domain-authority-apis/unblockingapi/50-pack/llms.txt): $1.072 per 1,000, 60% complete, live
- [UnblockingAPI, €100 pack](https://datacircle.dev/domain-authority-apis/unblockingapi/100-pack/llms.txt): $1.023 per 1,000, 60% complete, live
- [UnblockingAPI, €250 pack](https://datacircle.dev/domain-authority-apis/unblockingapi/250-pack/llms.txt): $0.979 per 1,000, 60% complete, live
- [UnblockingAPI, €500 pack](https://datacircle.dev/domain-authority-apis/unblockingapi/500-pack/llms.txt): $0.938 per 1,000, 60% complete, live
- [UnblockingAPI, contact us](https://datacircle.dev/domain-authority-apis/unblockingapi/contact-us/llms.txt): 60% complete, live

## UnblockingAPI's calls for this API (1)

- `GET /unblock`: [UnblockingAPI, free](https://datacircle.dev/domain-authority-apis/unblockingapi/free/llms.txt)

## UnblockingAPI's APIs (3)

- [UnblockingAPI: domain authority API pricing, 7 plans](https://datacircle.dev/domain-authority-apis/unblockingapi/free/llms.txt)
- [UnblockingAPI: SERP API pricing, 7 plans, GET /unblock, Bing](https://datacircle.dev/serp-apis/unblockingapi/free-get-unblock-bing/llms.txt)
- [UnblockingAPI: SERP API pricing, 7 plans, GET /unblock, Google Search | Organic results](https://datacircle.dev/serp-apis/unblockingapi/free-get-unblock-google-search-organic-results/llms.txt)
- [UnblockingAPI: web scraping API pricing, 7 plans](https://datacircle.dev/web-scraping-apis/unblockingapi/free/llms.txt)

## UnblockingAPI: domain authority API alternatives

- [Omkar Cloud, $16 monthly, Starter Plan, GET /domains/authority, Domain Authority](https://datacircle.dev/domain-authority-apis/omkar-cloud/16-monthly-starter-plan-get-domains-authority-domain-authority/llms.txt): $0.80 per 1,000, 60% complete, live
- [DR Checker, $109.80 yearly, Pro, GET /api/dr-checker](https://datacircle.dev/domain-authority-apis/dr-checker/109-80-yearly-pro-get-api-dr-checker/llms.txt): $45.75 per 1,000, 20% complete, live

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-06.

- https://unblockingapi.com/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- https://unblockingapi.com/acceptable-use?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- https://unblockingapi.com/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- https://unblockingapi.com/guides?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- https://unblockingapi.com/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- https://unblockingapi.com/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- https://unblockingapi.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- https://unblockingapi.com/templates/kjellberg/ahrefs-website-authority-checker?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- https://unblockingapi.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing