Free Backlink Checker for Website — Domain Authority Score

The free backlink checker for any website. Get the domain authority score, referring domain count, total link count, follow %, plus up to 900 individual backlink records — origin URL, target URL, anchor text, rel, type, status, first/last seen.

A free SEO backlink checker tool. No login required, no Ahrefs or Semrush subscription needed.

What you get

Per run (one domain in, one item out):

• domain_score — authority score (0-100, like Ahrefs DR / Moz DA)
• referring_domains_count — unique linking domains
• total_link_count — all backlinks (multiple from same domain counted)
• follow_percent — % of links passing PageRank
• ip_count — unique IPs of linking servers
• meta_title — homepage title (sanity check)
• thumbnail — homepage screenshot URL
• backlinks[] — array of per-link records (when include_backlinks=true)

Each backlink record:

{
  "origin_url": "https://example-publisher.com/article",
  "target_url": "https://your-domain.com/page",
  "anchor_text": "click here",
  "rel": "follow",
  "type": "text",
  "status": "found",
  "first_seen": "2025-08-12",
  "last_seen": "2026-04-20"
}

Why this free backlink checker beats paid SEO tools

Ahrefs charges $99-$399/month. Semrush charges $129-$449/month. Both require account creation, billing setup, and have monthly quota caps. This Actor:

• Returns the same shape of data — domain score, referring domains, full backlink list — for any domain
• Has no monthly subscription — pay only for the domains you check
• Has no quota cap — run as many domains as you need
• Returns up to 900 backlinks per domain — comparable to Ahrefs free tier

Input

Field	Default	Description
domain	required	Bare domain (e.g. coolblue.nl or example.com)
include_backlinks	true	Set false for summary only (faster, smaller payload)
timeout	60	Request timeout in seconds (10-180)

Use cases

• SEO audit — score any domain's link profile vs competitors
• Competitor backlink analysis — pull a competitor's full backlink list, sort for sites that link to multiple competitors but not you
• Outreach research — find publishers who already link in your category
• Pre-acquisition due diligence — verify a domain's backlink claims
• Lead enrichment — score every prospect's authority before outreach

Limits

• Returns up to ~900 per-link records per domain (free-tier cap)
• Domain authority score is directionally correct vs Ahrefs DR / Moz DA but not identically calibrated — use for relative comparisons, not drop-in replacement

Related Actors — Free SEO Suite

This actor pairs with two other free tools for a complete SEO research workflow:

• Free Keyword Research Tool for SEO — volume + CPC + SEO difficulty + intent for any seed keyword
• Free URL to Markdown API — bulk-extract competitor pages as clean markdown for LLM-driven analysis

Use this actor to score competitor authority, the keyword tool to find their winning queries, and the markdown converter to bulk-pull their ranking pages for content gap analysis.