Every web hosting company set a resource usage limit for the shared web hosting users. The main limit are memory and CPU usage limit. Usually they list the exact limit in detail on the Terms & Conditions page. JustHost is not an exception.
The CPU usage limit of JustHost is 10%. JustHost’s server management software detects and track down the accounts in which the web sites or programs use more than 10% of CPU. When your account is tracked down for many times, JustHost will ask you to upgrade to a higher plan.
If your account exceed the limit only because your web sites have so many visitors, congratulations! The value of so many visitors is much greater than the money of upgrade to VPS or dedicated server. That’s for sure. Your visitors may have better experience after the upgrade and will bring more visitors for you. Another possibility is that you have not so many visitors, your web site program consumes too much resource and has poor performance. In this case, you have to optimize the program by yourself or other experienced programmers.
Besides the CPU usage limit, JustHost forbids users to run software that uses 25% or more of system resource for longer than 90 seconds. There are numerous activities that could cause such problems. Some PHP and CGI scripts developed in incorrect methods are examples in this case. When using PHP include functions for including a local PHP file, include the local file rather than the URL. Instead of include (“http://www.yourdomain.com/include.php”), use include(“include.php”).
Many server-side software are forbidden to run on JustHost’s servers. They includes IRC related software, web spider or indexer, bit torrent applications, game servers and file-sharing/peer-to-peer applications.
Any cron job with intervals less than 15 minutes is not allowed by JustHost.
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