API endpoints
15 endpoints. Pick one by what you have: a domain, a keyword or a page URL. Every answer is JSON.
- Base URL
https://rankfield.dev- Key
Authorization: Bearer YOUR_API_KEY· get a free key, no account- Price
- Free; each endpoint page lists its limits, if any
- Docs
- quickstart · errors · rate limits · batch jobs
- Agents
- this list as Markdown · MCP
https://rankfield.dev/mcp· SKILL.md
Look up a domain#
- Site StrengthA 0–100 link authority score.
GET /v1/domains/{domain}/site-strength - Referring DomainsHow many domains link to it, and the 20 strongest.
GET /v1/domains/{domain}/referring-domains - All Referring DomainsEvery linking domain, paged or as a CSV export.
GET /v1/domains/{domain}/referrers - Outbound DomainsEvery domain it links to.
GET /v1/domains/{domain}/outbound-domains - Referrer ProfileIts referring domains, counted in ten Site Strength ranges.
GET /v1/domains/{domain}/referrer-profile - Dataset StatusWhich crawl release and graph build the link data comes from.
GET /v1/datasets/current - BrandA company's name, logos, colors, fonts and social profiles.
GET /v1/brand?domain={domain} - Site MapEvery URL of a website, from its sitemaps, feeds and links.
GET /v1/map?domain={domain} - Site AuditEvery page of a website checked for technical SEO and AEO problems.
POST /v1/site-audit