Basic
£10 /year
250 MB Storage 6 GB Monthly Traffic 5 Hosted Domains 15 Subdomains 1 FTP Account 1 MySQLDB 10 MB MySQL Quota
Standard
£50 /year
2 GB Storage 50 GB Monthly Traffic 10 Hosted Domains 15 Subdomains 1 FTP Account 8 MySQL DBs 60 MB MySQL Quota
Business
£75 /year
2 TB Storage 1 TB Monthly Traffic 20 Hosted Domains 15 Subdomains 1 FTP Account 15 MySQL DBs 120 MB MySQL Quota
Premium
£120 /year
Unlimited Storage Unlimited Traffic 100 Hosted Domains 15 Subdomains 1 FTP Account 50 MySQL DBs 1 GB MySQL Quota
What does this mean?
Storage is the amount of data you can host; pictures, videos, music etc.
Monthly traffic is the amount of data your VISITORS can consume within a month; Similar to how your mobile phone contract works.
Hosted domains are the amount of sites you can have on a single plan; You can have multiple websites from a single plan.
Sub domains are named sites within your site; google.com is a site mail.google.com is a sub domain.
an FTP account is the file transfer account to upload to your site.
MySQL DB is a database to stored your sites information, this aligns with your hosted and sub domains where applicable.
MySQL quota is the amount of data you can store in your MySQL Database.