A country-code address outlived the country

The .su ending is a country-code top-level domain: the final part of an internet address that was assigned to represent a particular country or territory. It was created for the Soviet Union shortly before that state dissolved in 1991. The country disappeared from the political map, but its internet namespace did not vanish with it.

That separation is possible because a domain ending is an administrative entry in the internet’s naming system, not a live statement about which government controls the place it once represented. Removing or retiring a top-level domain requires technical and administrative changes; a country’s breakup does not automatically erase every address using its code.

What a surviving domain can—and cannot—mean

A .su address today does not show that a website is operated by the Soviet government, or even that it is based in the former Soviet Union. Like other domain endings, it can be used to give a website an address, and the ending alone says little about who is behind it.

That persistence can also create room for abuse. Cybercriminals may use legacy domains while disregarding international authorities, but the domain itself does not make a site criminal or protect its operator from investigation. Enforcement depends on people, organizations, and infrastructure behind an address—not just the letters after its final dot.

The striking result is that a namespace built for a vanished state remains part of the working internet: political borders can change faster than the systems that remember them.