Domain Signal
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Domain signals are the collection of domain-level attributes that search engines use when evaluating a site's overall ranking potential. These include [[domain-authority|domain authority]], [[domain-age|domain age]], [[backlinks|backlink]] profile quality, historical spam signals, and the choice of [[tld|TLD]]. Unlike page-level signals (title tags, content quality), domain signals apply uniformly across the entire site, meaning a strong or weak signal at the domain level elevates or suppresses every page simultaneously.
Example
A domain with a clean history, 10-year age, and thousands of editorial backlinks sends strong positive domain signals, giving every new page it publishes a head start in search rankings.