Enter Sao Tome and Principe market with a .ST Domain

No. The registry's rulebook settles it in a single sentence: anybody in the world can register a .st domain. Applying from abroad, you are not asked to be resident in Sao Tome and Principe, to show a local address, to produce company papers or identity documents, or to appoint a local trustee. All the registry takes at registration is your declaration: that your contact details are complete and accurate, that you will keep them current, and that to your knowledge the name does not infringe anyone else's rights. Names are allocated first come, first served, and no reservation procedure or waiting list is defined.

Up to ten years in a single order. The registry states it plainly on its registration page: you can register or renew a domain name for as much as ten years within one order. The term runs as a flat range rather than in two-year blocks or a fixed ladder, so intermediate years are valid. Measurement bears this out, with registrations in the zone carrying expiry dates a full decade ahead. Factor in one detail: a change of registrar adds a mandatory one-year renewal, so a transfer costs you no days at all and in fact extends your term. Choosing a longer period also reduces the risk of missing a renewal.

No. .st is a single-layer namespace and registration happens directly at the second level. com.st, org.st, net.st, edu.st, co.st, store.st, mil.st and gov.st all sit on the registry's reserved address list; they are closed names, not open sub-zones. Measurement confirms it: the whois record for those names reads as reserved by the ST Registry, and no third-level registration can be made beneath them. The same list also covers names set aside for the islands themselves, among them saotome.st, principe.st, consulado.st and embaixada.st. Your name therefore has to be built directly as yourname.st.

No. The registry's rules are explicit: accented names are not accepted, spaces and other special characters are rejected, upper case is reduced to lower case, and a name may not begin or end with a dash. The document contains no provision at all for punycode conversion, bundles or variant handling. The practical consequence is that letters carrying diacritics cannot appear in a .st name, and you have to build it from unaccented characters. The rule applies just as strictly to the extension's own country: although the official language of Sao Tome and Principe is Portuguese, the spelling «são» cannot be registered in this zone.

The address goes down very quickly. The registry warns you first: renewal reminders are sent 30, 14, 7 and 1 day before the date, and a further notice goes out on the day itself. Once a single day has passed beyond expiry the name is placed on serverHold and stops resolving, which means your website no longer loads and email addressed to the domain is no longer delivered. The tolerance familiar from generic extensions, where a name keeps working for a while after the date, does not exist here: the outage starts on day one. That is why it matters not to leave renewal to the expiry date and to keep the contact address current.

You start the transfer with the authorisation code obtained from your current registrar and move the name to the new provider. By the registry's own account no separate transfer fee is charged; the only cost of the operation is the one-year renewal that is added automatically. That year is not lost time, it is appended to your existing term, so a transfer actually extends your registration by twelve months. The registry also supports bulk transfers. You can see in advance whether a name is locked: status codes such as clientTransferProhibited in the whois record show whether the lock is set. Start on the domain transfer page.

This zone is more open than most generic extensions. Measurement shows that the registry's whois server publishes the holder's name, street address, city and postcode, country, telephone number and email address in plain text, and repeats the same block for the administrative, technical and billing contacts. The single exception is holders established in the European Union, whose fields come back masked under data protection law. Masking is therefore conditional rather than the default. Bear in mind that the contact details you supply at registration will be publicly visible; you can inspect any record on the whois search page.

No. The measurement is unambiguous: there is no DS record for .st in the root zone, which means the zone itself is not signed. For a domain to be protected by DNSSEC the parent zone must be signed first and the registry must publish your DS record upwards; in .st that first link of the chain is missing. The registry's rulebook likewise contains no provision on DNSSEC, on signing or on submitting DS records. In practice that means DNS answers for your .st name cannot be cryptographically validated, so security has to be built at the server layer instead — through a valid SSL certificate and enforced HTTPS, for example.