DA PA SS Checker

What a DA PA SS checker tells you

A DA PA SS checker returns three numbers at once: Domain Authority, Page Authority and Spam Score. Two measure strength, one measures risk, and reading them together is the whole point.

Authority on its own is an incomplete picture. A domain can carry real link equity and still be a bad place to put your link, and only the Spam Score column reveals that.

Why DA and SS belong in the same check

The most common expensive mistake in link buying is sorting a prospect list by DA and working down from the top. That sort puts rebuilt expired domains and PBN nodes at the very top, because they inherited authority they no longer deserve.

Sorting by DA and then filtering by Spam Score removes most of them in one pass. It is a thirty-second step that routinely saves the cost of the link.

• High DA, low SS: the target. Strong and clean.
• High DA, high SS: treat as a red flag. Usually an expired domain rebuilt for links.
• Low DA, low SS: often fine. A small, honest site that simply has not grown yet.
• Low DA, high SS: skip without further thought.

How Spam Score is calculated here

When Moz data is available, we show and label Moz's percentage-based Spam Score. When it is unavailable, the Estimated fallback uses domain registration age, HTTPS certificate validity, DNS health, blocklist presence and TLD risk.

The complete breakdown of every signal and its weight is on the methodology page. It is published deliberately: a risk score you cannot inspect is not much use for a decision that costs money.

Screening a prospect list in bulk

Checking three metrics one domain at a time does not scale past about ten prospects. The same check runs across a whole list in one pass.

Paste your list or upload a CSV into the bulk checker and export the results with every metric included, ready to sort and filter in your own sheet. Up to 100 domains per batch, free.

How the link verdict works

Every single-domain check ends with one of four verdicts. The rules are simple and published, so you can see exactly why a domain got its label.

• Avoid: Spam Score above 60%, or the domain is on the Spamhaus blocklist.
• Review manually: Spam Score from 31% to 60%, the site is offline, the domain is under 1 year old, or DA is above 40 while Ahrefs DR is under 10.
• Looks safe to pursue: no risk signals and DA of 15 or more.
• Clean, low authority: no risk signals, but DA under 15. Worth it mainly for relevance.

The verdict is a first screen. Relevance and real search traffic still decide whether a link is worth having, as our backlink quality checklist explains.