Glossary · Content architecture and SEO
alias domain
A domain whose homepage and machine files all redirect to one other host: a second name for the same site, not a second site.
What alias domain means
A domain whose homepage and machine files all redirect to one other host: a second name for the same site, not a second site. A scanner treats it as an alias rather than as a homepage that redirects off-host, because every path agrees; the alias should carry nothing the target does not.
How CrawlCheck measures alias domain
One finding code in the scanner read this. The share of all scans carrying each is computed from the live corpus when this page is served, not typed into it.
| Finding code | Share of scans | Guide |
|---|---|---|
DOMAIN_IS_ALIAS | 0.9% | Canonical URL audit: one page, one address, and the three ways a site publishes it twice |
Every code, its rule and its current rate: the dataset page. Scan a site to see which apply to it.
Related terms in Content architecture and SEO
How pages, links and intent are organised so an entity is findable, and what a link or a structure can and cannot transfer.
Search intent · Query class · Navigational query · Informational query · Transactional query · Commercial investigation · Entity-first content · Information architecture · Taxonomy · Ontology · Topic cluster · Pillar page · Content hub · Semantic HTML · Heading hierarchy · Internal link · Anchor text · Link context · Deep link · Broken link · Redirected internal link · Link equity · PageRank · Dofollow · Nofollow · Sponsored link · User-generated link · External link · Inbound link · Referring domain · Link neighborhood · Orphaned entity · Content decay · Content refresh · Historical optimization · answer block · apex domain · parked domain · local pack · Google Business Profile · data aggregator · Data Axle
Questions about alias domain
What is alias domain?
A domain whose homepage and machine files all redirect to one other host: a second name for the same site, not a second site.
What does alias domain not show or guarantee?
A domain whose homepage and machine files all redirect to one other host: a second name for the same site, not a second site. A scanner treats it as an alias rather than as a homepage that redirects off-host, because every path agrees; the alias should carry nothing the target does not.
How does CrawlCheck measure alias domain?
Through the finding code DOMAIN_IS_ALIAS, each with a stated rule, evidence bytes and a live share of scans on the dataset page.
Which area of the glossary does alias domain belong to?
Content architecture and SEO: How pages, links and intent are organised so an entity is findable, and what a link or a structure can and cannot transfer.
← apex domain · parked domain →
See it in the full glossary · 668 terms across 19 areas.