Linkheft — Domain Authority Checker & Website Rank API
Pricing
$2.00 / 1,000 domain rankeds
Bulk domain authority checker from open web data: a 0–100 authority score, rank among 133M domains in the Common Crawl web graph, 4-month trend and referring subnets. Monitor mode returns only rank changes. No API key, $0.002 per ranked domain.
One per line, up to 100,000. Domains, full URLs or email addresses all work (https://www.stripe.com/pricing → stripe.com). Subdomains fall back to their main domain unless the web graph ranks them on their own (e.g. user.github.io).
0–100. Drop ranked domains below this score (they are not charged). Handy for filtering link prospects or lead lists.
Watch this list over time. Each run compares every domain with the previous run of the same watchlist and returns (and charges) only domains that are new or whose authority score, tier, web-graph rank, Majestic rank or status (ranked/unranked) changed. Changed rows get change, changedFields and changes (from/to). Unchanged domains are skipped and not charged. The first run returns everything as new. The open data refreshes about monthly (Majestic Million) and quarterly (Common Crawl web graph), so a weekly or monthly schedule is enough.
