Basically, it is the way of optimization in which your SEO techniques will target the other countries and further it will be helpful for search engine detecting country you want to target.
There are two types of search engine optimization one is Local SEO and the other one is International SEO which is also called as Global SEO.
What is the difference between Local SEO and International SEO?
Local SEO only target a specific region or area, on the other hand, International SEO targets globally and is very much helpful in generating huge revenue globally.
When you use Global SEO it will increase the diametric range for outreaching your products or services which will be more helpful in lead generation. International SEO requires more Investment as compared to Local SEO but also generates more revenue than Local SEO. International SEO has a lot of competition as your selected keywords will have more competitors because of it, not like Local SEO which only have a selected region to target. The competition grows more and more day by day because the website has a number of competitors when it is counted worldwide.
Hosting of the website also plays a vital role when it comes to targeting the website worldwide. The use of country code top-level domain, subdirectories, subdomains will help in targeting global countries with an international domain. When the target is different language it will use subdomains and subdirectories. The Traffic generation of the website will be from different countries globally. Organic traffic from other countries will also help in ranking in different countries.
For tracking the traffic or backlinks for International SEO use tools like Google Webmaster, Bing Webmaster, Yandex Webmaster, SEMrush, etc.