> ## Documentation Index > Fetch the complete documentation index at: https://docs.scrapeunblocker.com/llms.txt > Use this file to discover all available pages before exploring further. # Run Ahrefs' free SEO tools (DR, backlinks, traffic, keywords, KD, SERP) > Ahrefs' free SEO tools as JSON, without an Ahrefs account. `tool=authority&target=`: `domainRating`, `backlinks`, `referringDomains`, `dofollowBacklinksPercent`, `dofollowReferringDomainsPercent`. `tool=backlinks`: the same plus `topBacklinks` (`urlFrom`, `urlTo`, `title`, `anchor`, `textBefore`/`textAfter`, `domainRating`). `tool=traffic`: `organicTraffic`, `trafficValueUsd`, `trafficHistory`, `topPages`, `topCountries`, `topKeywords` (`country` narrows it to one market). `tool=broken-links`: `inbound` broken backlinks and `outbound` broken links on the site's pages. `tool=keyword-difficulty&keyword=`: `difficulty` (0-100), `referringDomainsToRank` and the SERP `results`. `tool=keywords`: `ideas` and `questionIdeas` with `difficulty` and `volume` buckets, plus totals (Google). `tool=serp`: the top Google `results` (organic with `metrics` - DR, UR, backlinks, referring domains, traffic, value, keywords - plus AI overview, questions, shopping, local and news blocks). Domain tools take `mode` (subdomains, domain, prefix, exact). One call, one unit. ## OpenAPI ````yaml /api-reference/openapi.json post /seo/ahrefs openapi: 3.1.0 info: title: ScrapeUnblocker API description: >- Public API for the ScrapeUnblocker proxy/anti-bot service. Authenticate every request with the `x-scrapeunblocker-key` header. Documented here: page-source extraction, Google SERP scraping, image fetch, and the dedicated plugin endpoints (search engines, marketplaces, reviews, travel, social and more). All other paths exist for internal operations and are intentionally hidden from this spec. version: 3.0.0 servers: - url: https://api.scrapeunblocker.com description: Production security: [] paths: /seo/ahrefs: post: tags: - Plugins summary: Run Ahrefs' free SEO tools (DR, backlinks, traffic, keywords, KD, SERP) description: >- Ahrefs' free SEO tools as JSON, without an Ahrefs account. `tool=authority&target=`: `domainRating`, `backlinks`, `referringDomains`, `dofollowBacklinksPercent`, `dofollowReferringDomainsPercent`. `tool=backlinks`: the same plus `topBacklinks` (`urlFrom`, `urlTo`, `title`, `anchor`, `textBefore`/`textAfter`, `domainRating`). `tool=traffic`: `organicTraffic`, `trafficValueUsd`, `trafficHistory`, `topPages`, `topCountries`, `topKeywords` (`country` narrows it to one market). `tool=broken-links`: `inbound` broken backlinks and `outbound` broken links on the site's pages. `tool=keyword-difficulty&keyword=`: `difficulty` (0-100), `referringDomainsToRank` and the SERP `results`. `tool=keywords`: `ideas` and `questionIdeas` with `difficulty` and `volume` buckets, plus totals (Google). `tool=serp`: the top Google `results` (organic with `metrics` - DR, UR, backlinks, referring domains, traffic, value, keywords - plus AI overview, questions, shopping, local and news blocks). Domain tools take `mode` (subdomains, domain, prefix, exact). One call, one unit. operationId: ahrefs_tools_seo_ahrefs_post parameters: - name: tool in: query required: false schema: anyOf: - type: string - type: 'null' description: >- Which Ahrefs free tool to run: 'authority' (Domain Rating), 'backlinks', 'traffic', 'broken-links' (these take `target`), 'keyword-difficulty', 'keywords' (keyword ideas), 'serp' (these take `keyword`). title: Tool description: >- Which Ahrefs free tool to run: 'authority' (Domain Rating), 'backlinks', 'traffic', 'broken-links' (these take `target`), 'keyword-difficulty', 'keywords' (keyword ideas), 'serp' (these take `keyword`). - name: target in: query required: false schema: anyOf: - type: string - type: 'null' description: >- Domain or URL for the domain tools, e.g. 'github.com' or 'https://github.com/features'. title: Target description: >- Domain or URL for the domain tools, e.g. 'github.com' or 'https://github.com/features'. - name: keyword in: query required: false schema: anyOf: - type: string - type: 'null' description: Search phrase for the keyword tools, e.g. 'running shoes'. title: Keyword description: Search phrase for the keyword tools, e.g. 'running shoes'. - name: country in: query required: false schema: anyOf: - type: string - type: 'null' description: >- Two-letter market code. Keyword tools: the search market (default 'us'). traffic: limits the estimate to that country (default: worldwide). Not used by the other domain tools. title: Country description: >- Two-letter market code. Keyword tools: the search market (default 'us'). traffic: limits the estimate to that country (default: worldwide). Not used by the other domain tools. - name: mode in: query required: false schema: type: string description: >- Target scope for the domain tools: 'subdomains' (the domain with all its subdomains), 'domain' (without subdomains), 'prefix' (everything under the URL) or 'exact' (that URL only). default: subdomains title: Mode description: >- Target scope for the domain tools: 'subdomains' (the domain with all its subdomains), 'domain' (without subdomains), 'prefix' (everything under the URL) or 'exact' (that URL only). - name: protocol in: query required: false schema: type: string description: 'traffic only: ''both'', ''http'' or ''https''.' default: both title: Protocol description: 'traffic only: ''both'', ''http'' or ''https''.' - name: questions in: query required: false schema: type: boolean description: 'keywords only: also return question ideas.' default: true title: Questions description: 'keywords only: also return question ideas.' responses: '200': description: >- JSON with `tool`, `query`, `found` and the tool's fields (`found: false`, with empty fields, when Ahrefs has no data for the target or keyword). content: application/json: schema: {} '400': description: Invalid parameters, or Ahrefs rejected the target/keyword. '422': description: Validation Error content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' '502': description: >- Ahrefs refused every exit, its anti-bot check could not be passed, or it did not answer in time - retry. security: - ScrapeUnblockerKey: [] components: schemas: HTTPValidationError: properties: detail: items: $ref: '#/components/schemas/ValidationError' type: array title: Detail type: object title: HTTPValidationError ValidationError: properties: loc: items: anyOf: - type: string - type: integer type: array title: Location msg: type: string title: Message type: type: string title: Error Type type: object required: - loc - msg - type title: ValidationError securitySchemes: ScrapeUnblockerKey: type: apiKey in: header name: x-scrapeunblocker-key description: Your ScrapeUnblocker API key. Apply on every request. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.