Bulk domain authority checker

What authority scores and DR measure

An authority score estimates how strong a domain's backlinks are: how many sites link to it, and how well linked those sites are in turn. One link from a well-linked site counts for more than many links from sites nobody links to.

The numbers here are Ahrefs' Domain Rating (DR), fetched from the Ahrefs API. DR rates a domain's backlink profile on a logarithmic scale from 0 to 100, so moving from 70 to 80 takes far more than moving from 10 to 20.

Other tools have their own versions: Moz has Domain Authority and Semrush has Authority Score. Each uses its own data and formula, so the numbers differ from tool to tool. When you compare domains, compare scores from the same source.

Google doesn't use any of these scores. They're estimates that help you compare sites, for example when you pick where to launch or which sites to ask for a link. Our list of launch directories is sorted by Ahrefs DR.

How it works

1. 1

   Paste up to 100 domains or URLs, one per line. We clean the list as you type and tell you about anything that isn't a domain.

2. 2

   We ask Ahrefs for every domain's Domain Rating. Results are kept for a day, so checking again is instant.

3. 3

   Sort the results by domain, score or rank, then copy them as CSV for a spreadsheet.

Questions

How many domains can I check at once?

Up to 100 per check. Paste domains or URLs, one per line. Duplicates are removed, and subdomains are checked as their main domain.

Is this Ahrefs DR?

Yes. The number labelled Domain Rating comes straight from the Ahrefs API, so it matches what Ahrefs shows, give or take a day while we keep results cached.

What are bulk checks useful for?

Shortlisting launch directories, guest post targets or link prospects, sizing up the sites that link to a competitor, and cleaning an outreach list before you spend time on it.

Why does a domain show 0 or no score?

Scores come from the links a crawler has found pointing to a domain, and they change as it finds new ones. A new domain with few links from other sites often scores 0 or has no data yet, and so does a typo. Listing your product on launch sites and directories is a common first step.