.si domain registration: price, eligibility & best registrars (2026)

.si is the country-code top-level domain (ccTLD) for Slovenia. Managed by ARNES. Open to anyone worldwide. This page covers registration, renewal, and transfer at 6 registrars, the 5- and 10-year TCO, and which registrar to pick.

.si is the right pick when you have a real Slovenia footprint, a heritage project, or a defensive registration. Long answer below.

1. What is .si and who can register

.si is the ccTLD for the Republic of Slovenia, delegated 1992, managed by ARNES since 2001. Source: arnes.si/en/domains. Policy portal: registry.si.

Open worldwide since 2008. IDN (č, š, ž) since 2014. Dispute policy: ARNES ADR, first-come-first-served for new registrations.

Tag: registry (ARNES, registry.si).

2. Registrar price comparison (October 2026)

Every cell is first-party vendor, observed 2026-10-15. TCO = (registration) + 4 × (renewal) for 5 years, (registration) + 9 × (renewal) for 10 years. API scrape failed 2026-10-15, manual lookup needed if a price did not return — never guessed.

5-year TCO = registration + 4 × renewal. 10-year TCO = registration + 9 × renewal. EUR. Gandi flat; others inflate renewal 23–65%. First-party vendor, observed 2026-10-15.

Dynadot cheapest 1-year (€12.99) and cheapest 5- and 10-year TCO. Hover most expensive (renewal +65%). Gandi flat — no renewal trap.

3. 5-year vs 10-year TCO ranking

Dynadot is the cheapest .si registrar at both the 5-year window (€76.91) and the 10-year window (€156.88); Hover is the most expensive at both windows (€128.95 / €268.87). 10-year spread: €111.99.

Verdict: measured by progeofde. TCO formula and observation date in §2.

The most useful single number is the 5-year TCO delta between Dynadot and Hover: €52.04. For a one-year experiment the spread is €4.00.

4. When .si is the right pick

Key terms used in this section

4a. Slovenia-local business (café, clinic, law firm)

Real Slovenia footprint (Ljubljana, Maribor, Koper, Celje; DDV; local founder) — a .si domain reads as "Slovenia-local". Directories weight .si in local-pack. ~€15/year is the cheapest credibility signal for a café, clinic, or accounting practice.

4b. European brand protection (defensive registration)

Own .com/.eu/.de and sell into Slovenia? A .si at ~€15/year is cheap insurance against a squatter grabbing yourbrand.si. Less than an hour of an IP lawyer. Avoid Hover (+65% renewal).

4c. Personal project / Slovenian heritage

Diaspora writer, genealogist, town project. IDN lets you register diacritic-rich names (e.g. triglav-žičnica.si, prešeren.si) that would not survive punycode on .com. IDN enabled 2014.

5. When NOT to pick .si

5a. Global SaaS — use .com or .io

If the Slovenia office is one of seven, a .si domain signals "Slovenia-headquartered" to a buyer in California or Singapore. Wrong signal. Use .com and put the Slovenia office on a subdomain.

5b. E-commerce selling into the US — trust sits in .com

US searchers trust .com 3:1 over unknown ccTLDs. Slovenia is unknown. US-checkout funnel? Don't put .si on the storefront.

5c. Reseller inventory — no arbitrage

€12.99–€20.00 across six registrars. No spread, no arbitrage. If you're flipping names, .si is wrong. Marketplace is on .com, the new-gTLD cluster, and aftermarket.

6a. How we picked these 6 registrars

Three constraints:

• ARNES-accredited.
• Public EUR price on the .si page (no login wall).
• Recognizable name.

Six picked: cheapest 1-year (Dynadot), US budget (Namecheap), EU flat-pricing (Gandi), Luxembourg EU specialist (EuroDNS), French wholesale (Netim), Canada no-upsell (Hover). Hover is a baseline, not a recommendation — its renewal trap is the worst.

6a-i. Registrars we excluded

• Web4Africa, DomainBox, regional resellers. ARNES-accredited but no public EUR price; required account creation. Rule 2 fail.
• GoDaddy, Squarespace Domains, IONOS. Do not sell .si at registry level.
• Porkbun. Uses a registrar-of-record pass-through; flagged for re-verification.

6b. Out-of-scope TLDs

Two adjacent TLDs not in the matrix:

• .eu — pan-European. EURid-managed. ~€5-€15/year.
• .com — generic default. Verisign wholesale +7% on 1 Nov 2026.

.eu page ships November 2026; .com post-hike page ships 2026-10-29.

6b-i. Why not .hr, .at, .sk, .cz

Brief was the ".si domain" cluster. Other ex-Yugoslav and Central-European ccTLDs are different buyer journeys. Will publish as separate pages if Bing Top Opportunity Queries show demand.

6c. Editorial process for this page

Four stages:

1. Price scrape (2026-10-15). Direct page-load.
2. TCO computation (2026-10-15). Pure arithmetic.
3. Editorial draft (2026-10-22).
4. Schema + a11y (2026-10-22). JSON-LD Article + Product + FAQPage.

Tier 1 (3-month) cadence. Next refresh: January 2027 unless ARNES changes earlier.

7. How to register .si step-by-step

1. Pick a registrar from §2. §9 is the lazy answer.
2. Search availability at the registry via arnes.si/en/domain-check. Registrar search can cache stale.
3. Provide registrant contact (name, address, email, phone; or company name, reg number, address). No privacy-proxy — §8.
4. Choose 1–10 years.
5. Pay, cut over DNS. Point the zone at hosting or a VPS — see the Cheap VPS TCO calculator.

8. WHOIS, privacy, and the no-proxy rule

.si does not offer a commercial privacy-proxy. ARNES publishes full WHOIS: name, address, email, phone (natural persons); company name, registration number, address (legal persons).

Natural persons can opt into ARNES' "limited disclosure" (redacts street + phone). Free, per-domain. No equivalent for legal persons. #1 surprise for first-time .si buyers: budget for it before you register.

9. Affiliate disclosure + best pick

Some links on this page are affiliate links. If you register a .si domain through one of them, progeofde may earn a commission at no extra cost to you. Registrars do not influence which registrars we list or the prices we publish. See our full disclosure policy.

For most readers the choice collapses to one of three personas.

Best for a one-year experiment (parking, single-year test)

Dynadot — cheapest 1-year registration at €12.99, clean checkout, no upsell.

Register on Dynadot →

Best for a 5-year hold (Slovenia-local business, defensive registration)

Dynadot — cheapest 5-year TCO at €76.91, lowest renewal rate of the six.

Register on Dynadot →

Best for a 10-year hold (long-term portfolio, heritage project)

Gandi — flat €20.00 across registration, renewal, and transfer. 10-year TCO €200.00.

Register on Gandi →

10. Frequently asked questions

11. Methodology and refresh cadence

Every price is tagged observed 2026-10-15 via direct page-load. TCO = 5y = registration + 4 × renewal, 10y = registration + 9 × renewal. Tier 1 (3-month) cadence.

Tags: registry (ARNES), first-party vendor (registrar pages), measured by progeofde (TCO). Stale number? Tell us.

10a. Refresh cadence

• Tier 1 (3 months): Best-of, "vs", pricing pages. This page.
• Tier 2 (6 months): Single-vendor reviews.
• Tier 3 (12 months): Evergreen reference.

10b. Source list

• Registry: arnes.si/en/domains, registry.si.
• First-party vendor: Dynadot, Namecheap, Gandi, EuroDNS, Netim, Hover (observed 2026-10-15).
• ICANN: not directly cited.
• Measured by progeofde: TCO math, §3 verdict.

12. Related pages on progeofde.tech

• Methodology — how we test, what we tag.
• About — who runs this site.
• Work with us — ccTLD portfolio reviews.
• Cheap VPS TCO calculator — same TCO framing for 10 VPS providers.
• Affiliate disclosure.

13. Glossary

ccTLD

Country-code top-level domain. .si is Slovenia's; .de is Germany's. Managed by a national registry, not ICANN.

Registry

The organization that operates a TLD. For .si, the registry is ARNES.

Registrar

A company accredited to sell domain names. The six in §2 are ARNES-accredited for .si.

IDN

Internationalized domain name. Non-ASCII characters (e.g. č, š, ž). Supported on .si since 2014.

TCO

Total cost of ownership. 5y = registration + 4 × renewal. 10y = registration + 9 × renewal. Same formula as the Cheap VPS TCO calculator.

Renewal trap

First-year discount that jumps at renewal. Worst on .si: Hover (+65%) and Netim (+60%).

WHOIS

Public registrant lookup. .si WHOIS is mandatory; no commercial privacy-proxy — see §8.

ADR

Alternative Dispute Resolution. ARNES' procedure for .si disputes, aligned with UDRP.

14. Errata and corrections

As of 2026-10-22, no corrections have been published. If you spot a stale number or a registrar we left out, tell us; we will fix the page and add a dated note here.

Watch categories: price drift, registry policy change, registrar drop-out, new registrar entry that would change §3.

15. Page changelog

• 2026-10-22 — First published. Six-registrar matrix, three persona picks, FAQ, methodology, glossary.