Domain authority

Do AI answers only cite high-authority domains?

No. Take one question our workspace tracks, "best AI visibility tool for B2B SaaS in 2026", read over the Attensira MCP for the 30 days to 4 October 2026. ChatGPT gave 63 answers to it and attached 2,482 citations. The domain it leaned on most was otterly.ai, with 469, followed by peec.ai with 219. Both are vendors in the category the question asks about. Wikipedia, which any authority score would put near the top of the web, drew 21.

The stored ChatGPT answer of 4 October, at the top of this page, shows the result: it named Peec AI best overall and cited peec.ai and help.otterly.ai inline. Across all 111 answers on both engines, Profound was named in 99.

Our own domain drew 0 citations and Attensira was named in 0 of the 111 answers. That is not because attensira.com is a small domain. We have no page that answers this exact question. The vendors that do get cited.

If AI engines picked sources by domain authority, the biggest domains would lead. What the leaders have in common is a page that answers the specific question asked.

What is domain authority?

A score, usually 0 to 100, that an SEO tool vendor computes to estimate how strong a whole site is in search. The name "Domain Authority" comes from Moz; Ahrefs, Semrush and others publish their own versions under other names. Each is built mostly from the vendor's own crawl of links: how many sites link to yours, and how strong those sites are in the vendor's model.

Useful for one thing: comparing sites quickly inside one tool, for example to judge which outreach targets are worth the effort. Not useful as a target in itself.

Does Google use domain authority?

No. These are third-party estimates. Google does not read them, and a score moving up or down changes nothing in Google.

What Google does document:

• Links matter. Links help Google discover pages and are one of many ranking signals. Google's original PageRank patent, filed in 1998 and granted on 4 September 2001, ranked pages by the links pointing at them, weighted by the importance of the linking pages. See backlinks.
• Site-level effects are limited. Google's ranking systems guide describes a site diversity system that generally shows no more than two listings from the same site in its top results. A strong domain does not get to fill a page of results.
• Trust is judged on content and reputation. Google's quality guidance points at experience, expertise, authoritativeness and trust, judged from the page and from what others say. See E-A-T and content authority.

Why do small sites win AI citations?

Because AI answers select passages, not domains. A retrieval system scores each candidate passage against the question. A small site with one page that answers the exact question in a self-contained paragraph beats a large site with a general page. Domain-level strength helps a page become a candidate, through crawling and ranking, but the selection is made on relevance.

That is good news for small companies. It also means the work is specific: one page per question, written to be quoted, and presence on the sources each engine prefers for that question. See topical authority.

What are the objections to ignoring domain authority?

"We need DA 50 before AI will cite us." No engine has published a threshold, because none uses the score. On the question in our example, otterly.ai out-drew Wikipedia by more than twenty to one.

"Raising DA raises rankings." Raising the number of good links to useful pages can help rankings. The score is a side effect you can watch, not a lever.

"Low-DA sites are not worth outreach." The sites Perplexity cites for your question are worth outreach whatever their score. They are where the answer comes from.

"Big brands always win." They win more general questions. Specific questions are open to whoever answers them best.

How does Attensira choose sources to work on?

Attensira ranks sources by their influence on the answers to your questions, from the answers themselves, rather than by any authority score. For each question and engine it lists the domains and pages that decided the answer and whether you are on them. The crew then works the gaps, on your pages and off-site, each step after your approval. The free audit maps the deciding sources for your own category, with no authority score in sight.