Separate Mobile URLs
An older architecture where phones are redirected to a distinct subdomain while desktops remain on the main domain, now strongly discouraged for new builds.
Analogy Mental model
Renting a small kiosk next door to serve anyone holding a phone, with two sets of books and two sets of staff reconciled every night.
In practice What you actually do
If you inherit one, maintain the bidirectional annotations without exception: an alternate link on the desktop page pointing to the mobile equivalent, and a canonical on the mobile page pointing back to the desktop URL.
Where people get burned Pitfalls
Every year spent maintaining the split costs twice the effort and divides link equity between two addresses. Migrating to a single responsive site removes both problems at once.
This entry was written in English from the Chinese original, not machine-translated. Read the Chinese version →