Referring domains, individual backlinks, anchors, top pages and a 0–100 DR in clean JSON. An index of 181M domains and 2.7B links between them.
A domain's full profile: DR, backlinks, referring domains, top anchors and pages, DR and TLD distribution.
Referring domains with link counts, dofollow, donor DR and first/last seen dates.
Individual backlinks: source page, anchor, rel, dofollow, link type and dates.
Anchor-text distribution with share, referring domains and dofollow percentage.
DR and link counts for up to 2,000 domains in one request.
Domains linking to several targets at once — find link gaps against competitors.
Email, Google or a passkey. No card — 2,000 credits every month on the Free plan.
In your account, one per site or service.
A plain HTTP GET with an X-API-Key header — the answer is JSON.
curl -H "X-API-Key: $KEY" "https://backlinks.uk.app/api/v1/refdomains?q=github.com&per=10&sort=links"From our own link index: 181M domains and 2.7B links between them. The index is refreshed roughly monthly, so links that appeared a few days ago may not be counted yet.
A logarithmic 0–100 score based on the number of referring domains, computed on our index. It is similar in spirit to the DR of other SEO tools but does not match their numbers.
Yes: in your own tools, client reports and products. Reselling raw API access is not allowed — see the Terms of Service.
Link data only: no keyword research, rank tracking, traffic estimates or site audits.