Web hosting
Multiple website hosting: how to plan one account safely
Multiple website hosting can be practical for small sites under one owner. The tradeoff is that the websites may share account credentials, resources, backups, and failure boundaries depending on how the hosting platform isolates them.
Know whether the sites share one operating account
Some shared plans let one account attach many domains. That is convenient, but a compromised application may have access to files owned by the same account. Separate customer or high-risk sites when stronger isolation is important.
All sites compete for the same account limits
CPU, memory, processes, I/O, storage, mail, and file-count limits may apply to the account as a whole. One busy or broken site can consume capacity that every other site on the account needs.
Backups need site-level recovery options
A full account backup is useful, but restoring every site to recover one file is inefficient. Keep databases and important site data organized so individual workloads can be restored or migrated without affecting unrelated sites.
Agencies need an ownership model
If sites belong to different customers, document who owns each domain, who receives renewal notices, who can access backups, and how a site can be handed off. Operational separation matters as much as the plan limit on number of domains.