Webhosting - Subdomains

In this article you will learn:

• When to set up subdomains on Webhosting
• How to create a subdomain:
  • via FTP
  • using the application installer
• How to set up HTTPS on a subdomain
• Common problems
• Frequently asked questions

Subdomains on Webhosting

On Webhosting, under the main domain name, you can create any number of subdomains with separate websites for this domain (and possibly for aliases). Check that you meet the following conditions:

• In the domain’s DNS records, you have A records (or AAAA records) named * or a specific subdomain, pointing to Webhosting.
• You use the default .htaccess file in the www folder, or added routing rules in the WEDOS directory structure at the end of your custom .htaccess.
• In the www folder on FTP, you have the domains and subdom directories according to the requirements of the Webhosting directory structure.

Creating a subdomain via FTP

You can create subdomain websites via FTP in the www/domains or www/subdom folder. This choice affects how subdomains behave with respect to aliases. If you do not use aliases, we recommend using the www/domains folder.

To create a subdomain via FTP, follow these steps:

1. Log in to FTP, for example using the WebFTP ⧉ client (Manual).
2. Go to the www/subdom or www/domains folder.
3. Create a new directory according to the instructions for the given folder.
4. Upload the website files, including index.html or index.php.

Subdomains in www/subdom

Websites in the www/subdom folder are shared subdomains of all alias domains. You create a new subdomain here by creating a directory named after the subdomain itself without the domain extension. For example, on the domena.tld webhosting you create the obchod.domena.tld subdomain by adding a folder named obchod to the www/subdom folder.

Subdomains in www/domains

Websites in the domains folder are displayed exclusively on the given domain or subdomain (with or without www).

You create a new subdomain here by creating a directory with the full domain name including the domain extension. For example, on the domena.tld webhosting you create the obchod.domena.tld subdomain by adding a folder named obchod.domena.tld to the www/domains folder.

Creating a subdomain with the application installer

If you use the application installer to build your website, you do not need to create the subdomain folder manually on FTP. Just make sure that if it exists in www/domains, it is empty (otherwise the installer will return an error).

To install an application on a subdomain, in the first step of the installation itself enter the subdomain name between http:// and the domain name. For example, on the domena.tld webhosting you create the obchod.domena.tld subdomain by entering the word obchod into the field between http:// and  domena.tld.

Setting up HTTPS on a subdomain

Enable HTTPS on Webhosting according to the instructions Webhosting – Quick HTTPS Setup. Then follow the instructions Webhosting – Manual HTTPS Setup to enter domain and subdomain management.

Add subdomains to the certificate using this procedure:

1. Click the add domains button.
2. At the bottom of the form, enter a list of subdomains (without the main domain name) separated by commas.
3. Confirm the addition with the add domains button at the bottom of the form.

If no error occurs, HTTPS will be active for the subdomains within 1.5 hours.

Common problems

Common problems with managing subdomains on Webhosting include:

• Error 500 on a subdomain
• The application installer cannot create a subdomain
• Incompatible main website .htaccess
• HTTPS does not work on a www subdomain

# 301 redirect www.sub.domena.tld -> sub.domena.tld
RewriteCond %{HTTP_HOST} ^www\.([^.]+\.[^.]+\.[^.]+)$ [NC]
RewriteRule ^ https://%1%{REQUEST_URI} [R=301,L]

Frequently asked questions