Bulk Domain Authority Checker: Rank, Backlinks & Age

Check the authority of thousands of domains in one run, without a Moz, Ahrefs or Semrush subscription. For every domain you get a 0-100 authority score, the number of referring IP subnets and IPs linking to it (the backbone of backlink strength), its rank in three public top-1M lists, yesterday-to-today rank movement, and the domain's age, expiry date and registrar.

Built on free, daily-updated data:

• Majestic Million: ranks the top 1 million domains by referring subnets. Gives referring subnets, referring IPs and yesterday's rank.
• Tranco: research-grade popularity rank averaged over 30 days.
• Cisco Umbrella: popularity by DNS queries.
• RDAP (the official successor to WHOIS): registration date, expiry and registrar.
• Wayback Machine (optional): when the site was first archived.

No API key, no login, no browser.

Who uses it

• Link builders and outreach teams: rank a list of prospect sites by authority before you pitch
• SEO agencies: benchmark clients against competitors, or audit a backlink export in bulk
• Domain investors: age, registrar, expiry and link strength for a list of names
• Sales and partnerships: prioritize a lead list by how established each company's site is

What you get

One row per domain:

• authorityScore (0-100) and authorityTier (elite / high / medium / low / unranked)
• linkScore: 0-100 from referring subnets, on a log scale where the #1 domain is 100
• popularityScore: 0-100 from Tranco rank (rank 1 = 100, rank 1,000,000 = 0)
• referringSubnets, referringIps, referringSubnetsChange (vs. yesterday)
• majesticRank, majesticRankChange (positive = moved up), majesticTldRank
• trancoRank, umbrellaRank, inTop1M, rankedAs (a subdomain falls back to its parent domain's ranks)
• domainCreatedAt, domainAgeYears, domainExpiresAt, registrar
• waybackFirstSeen (when enabled)

authorityScore is 70% link score and 30% popularity score when both are available, otherwise whichever exists. Domains outside all three top-1M lists are unranked: they are small sites, and you still get their age and registrar.

Example input

{
  "domains": ["apify.com", "shopify.com", "ahrefs.com", "https://blog.hubspot.com/marketing"],
  "includeDomainAge": true,
  "includeWaybackFirstSeen": false
}

Example output

{
  "domain": "shopify.com",
  "authorityScore": 78,
  "authorityTier": "high",
  "linkScore": 85,
  "popularityScore": 63,
  "referringSubnets": 67346,
  "majesticRank": 91,
  "majesticRankChange": 1,
  "trancoRank": 171,
  "umbrellaRank": 1805,
  "inTop1M": true,
  "domainAgeYears": 21.7,
  "registrar": "MarkMonitor Inc."
}

Pricing

Pay per domain checked. Domains with no data at all and invalid inputs are free, and the first 2 domains of every run are free. One run can check up to 100,000 domains.

Notes

• Ranks and link counts cover the top 1 million sites. Smaller sites show unranked; there is no free source of backlink data below that line.
• The authority score is our own metric built from public data. It is not Moz DA or Ahrefs DR, but it ranks sites in a similar order.
• Some country TLDs (for example .so and .io) publish no RDAP data, so age and registrar are empty for them.
• See how a site looked over time with Website History Checker, or what it runs on with Website Tech Stack Detector.