Whilst we do not limit bandwidth on individual websites, the various hosting plans do have different limits for the number of simultaneous visitor requests that can be processed at the same time.
If the allowance are exceeded, requests will be queued and processed when other requests have finished. Normally that happens very quickly and is not noticeable.
If a website significantly exceeds the allowance then some additional requests might be discarded. This is rare and tends to only happen when something unusual is happening with a website which causes a lot of requests, such as an attack, an aggressive search engine crawler, or a marketing campaign. Our SiteSentinel web application firewall significantly protects from attacks and search engine crawlers. Our website error monitoring will also detect & notify about these occurrences and possible site over-loading.
Most websites work great with a limit of 5 simultaneous requests. A busy website or a website that is responding to a lot of requests such as a marketing campaign can benefit from having a limit of 10 or more.