Subdomains look like this:
yoursite.com
fr.yoursite.com
de.yoursite.com
They're not too difficult to set up, and you can use subdomains as an alternative to subdirectories.
Setting up subdomains can be useful if you like the benefits of the multiple TLD arrangement but want to create separate pages for each language without the expense or hassle of managing multiple domains.
One disadvantage of using a subdomain structure over a subfolder structure is that your subdomains are considered separate pages by search engines.
So, the subfolder structure is typically better for SEO because it makes your site chinese overseas british database appear as one big page instead of a bunch of separate pages.
7. Just avoid URL parameters
URL parameters
Okay, I know these are used by many, but I'm not going to tell you that you should consider them as an option, despite the benefits they may have.
Avoid using URL parameters like these:
They are not good for SEO as they add unnecessary technical language to all your URLs. Search engines don't like this and neither do your human visitors.
It looks messy and unprofessional. It's harder to read, remember, and type into the search box to revisit later.
Analysis tools also have greater difficulty tracking dynamic links.