naymoCheapest .io domain — registrar & renewal (2026)
The lowest 3-year total cost to own a .io domain is
$113.94 at Spaceship
($33.98 first year, then $39.98/yr). Median renewal across
registrars is $49.79/yr — deal score 57/100.
| Registrar | 1st year | Renews/yr | Transfer | 3-yr total | Notes |
|---|---|---|---|---|---|
| Spaceship | $33.98 | $39.98 | — | $113.94 ◀ | Namecheap's sister brand; among the lowest renewals. |
| Dynadot | $34.99 | $39.99 | — | $114.97 | Single-tier pricing on many TLDs (reg == renewal == transfer). |
| Porkbun | $28.12 | $51.80 | $51.80 | $131.72 | First-term promo — renews higher. |
| NameSilo | $38.79 | $49.79 | — | $138.37 | Flat pricing, free privacy; no aggressive renewal hikes. |
| Namecheap | $32.88 | $56.98 | — | $146.84 | First-term promo — renews higher. |
⚠ Watch the first-year promo: Namecheap starts at $32.88 but renews at $56.98/yr — over three years that's $146.84, not the cheapest.
Porkbun's price is live; competitors are curated and verified periodically (USD). .io availability is checked in real time against authoritative sources.
.io domain — straight answers
How much does a .io domain cost?
The lowest first-year price is $33.98 at Spaceship, then $39.98 to renew/yr. Over 3 years the cheapest total cost of ownership is $113.94. The median renewal across the 5 registrars we compare is $49.79/yr, so picking the cheapest scores 57/100 on value.
Where is the cheapest place to renew a .io domain?
Spaceship has the lowest ongoing renewal at $39.98/yr. Renewal — not the first-year promo — is what you pay every year, so it's the number that matters most for a domain you keep. Across all 5 registrars the annual renewal ranges from $39.98 to $56.98.
Is the first-year price a trap?
Sometimes. The cheapest first year ($33.98) is below its own renewal ($39.98), and some registrars dangle an even lower promo that renews far higher. We rank by 3-year total cost, not the headline first-year price, so the promo can't hide a steep renewal. Always check the renewal before you buy.