Subdomains are useful for organising your website into different categories. Possible categories include:
Geographical areas or language groups
For example, if your website is in English and Spanish, a subdomain may be used to indicate that this section of your website will be in Spanish, and not English – so instead of just ionos.co.uk, es.ionos.co.uk would be used.
Product-oriented sections
If your website offers a variety of different services or products, you can create a subdomain for each one, for example blog.ionos.co.uk.
Gated content
Having a separate subdomain for logins or account pages on your website is a useful way of organising your site.
By using a subdomain, you'll be able to track the success of your website more accurately, as you'll see how different sections are performing.