AI & the web
Subdomain
A named section placed before a parent domain.
In everyday use
shop.example.com can lead to a shop separate from www.example.com.
What to keep in mind
A subdomain can host different content; do not assume every subdomain has the same privacy policy.
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Further reading
Original explanation and example by Perspectism. Further reading may cover the wider subject, rather than this exact wording. Edition updated 7 October 2026.
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