Backlink Checker API - Competitor Gap | $0.15/domain

referring-domains-report

Per domain - ranked list of referring domains (up to your limit, flat price).

competitor-gap-report

Per domain - domains that link to your competitors but not you (up to your limit, flat price).

domain-check

Fires once per domain returned with backlink data by a 'check' run - the cheapest way to look a domain up. Returns domain rank, total backlinks, referring domains, spam score, broken backlinks and first-seen date. Check up to 100 domains per run. Domains missing from the backlink index return a row marked 'found: false' and are NOT charged. Also billed for a monitoring run's first (baseline) run on a domain.

monitor-changes

Fires once per domain per run, ONLY when that domain's backlink profile actually changed since the previous run - you pay for news, not for looking. A monitoring run where nothing changed charges nothing beyond actor-start. Returns one row per referring domain gained or lost, with rank, backlinks, spam score and the date it appeared or disappeared. The first run on a domain establishes the baseline and is billed as a domain check instead.