| TLD | Type | Land/Organisation/Bemerkung | ||
| .sa | ccTLD |  |
Saudi-Arabien | |
| .sb | ccTLD |  |
Salomomen | |
| .sc | ccTLD |  |
Seychellen | |
| .sd | ccTLD |  |
Sudan | |
| .se | ccTLD |  |
Schweden | |
| .sg | ccTLD |  |
Singapur | |
| .sh | ccTLD |  |
St. Helena | |
| .si | ccTLD |  |
Slowenien | |
| .sj | ccTLD |  |
Svalbard und Jan Mayen | |
| .sk | ccTLD |  |
Slowakei | |
| .sl | ccTLD |  |
Sierra Leone | |
| .sm | ccTLD |  |
San Marino | |
| .sn | ccTLD |  |
Senegal | |
| .so | ccTLD |  |
Somalia | |
| .sr | ccTLD |  |
Suriname | |
| .ss | ccTLD |  |
Südsudan | |
| .st | ccTLD |  |
Sáo Tomé und Príncipe | |
| .su | ccTLD | |
ehemalige Sowjetunion (jetzt Russland) | |
| .sv | ccTLD |  |
El Salvador | |
| .sx | ccTLD | |
Sint Maarten | |
| .sy | ccTLD |  |
Syrien | |
| .sz | ccTLD |  |
Swasiland | |
ccTLD = Länderspezifische Domännamen
gTLD = Neue generische TLDs
sTLD = Sponsored TLDs
uTLD = Unsponsored TLDs