no
The two letter suffix used to designate a Spain internet address is es.
de....
The suffix attached to a German internet address is ".de".
The country code top level domain for Germany is de.
Honda designate all motorcycles in the 650cc to 899cc band with the suffix 'R'
Org is not a suffix. The org stands for organization.
It stands for Internet Protocol. It is basically your mailing address for your computer. When you use the internet you send and receive "packets" of data called datagrams. Your IP (Internet Protocol) is what allows you to be identified in the system and receive these packets.
a web address suffix.
The ".at" suffix in a web address is the country code top-level domain (ccTLD) for Austria. Websites using this suffix are typically associated with entities or individuals based in Austria.
Addressee
It is http://www.domain-name.pt
If a site has the suffix .edu then it is most likely is an education website.