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.io vs .co: which domain should you choose?

Two short country codes used by startups everywhere. .co is cheaper in the first year, and over three years (RM381.26 against RM665.08).

.io and .co prices

From our current price list, in MYR. +VAT 5% where applicable. The order form always shows the price before you pay.

.io and .co prices in MYR; the lower price in each row is marked.
Price.io.co
First year RM141.40RM75.86Lower
Renews at (per year) RM261.84RM152.70Lower
Transfer inUsually adds a year to the registration. RM261.84RM152.70Lower
3 years in totalFirst year plus two renewals. RM665.08RM381.26Lower
Price rise after year one +85%+101%

Who each one suits

.ioCountry code

A country code adopted worldwide by tech startups, developer tools and SaaS.

Run by
The registry of the British Indian Ocean Territory
Who can register
Anyone, with no local presence needed.
Best for
startup or SaaS product, tech or developer project
Costs
RM141.40 first year, then RM261.84 a year

.io details and search

.coCountry code

Colombia’s country code, marketed worldwide as short for "company".

Run by
The registry of Colombia
Who can register
Anyone, with no local presence needed.
Best for
startup or SaaS product
Costs
RM75.86 first year, then RM152.70 a year

.co details and search

Registry rules and restrictions

What applies before and after you register. We confirm anything special before you pay.

.io

  • Anyone, with no local presence needed.
  • The territory’s status is changing after the 2024 UK–Mauritius agreement on the Chagos Islands; .io registrations continue to work normally today, but some owners keep a second extension as a fallback.
  • No HTTPS requirement from the registry, but every site should still use SSL.

.co

  • Anyone, with no local presence needed.
  • People often mistype it as .com, so many owners register both.
  • No HTTPS requirement from the registry, but every site should still use SSL.

SEO: does the extension matter?

Short answer: not for rankings. Content, links and site speed decide where you rank; the extension mostly affects trust, memorability and which country search engines assume you serve.

.io

A country code that Google treats as generic, like .com: it is not tied to one country in search results and gives no ranking boost on its own.

.co

A country code that Google treats as generic, like .com: it is not tied to one country in search results and gives no ranking boost on its own.

Myth check: no extension gets a hidden ranking bonus, and keyword extensions (like .shop or .tech) do not rank better for that keyword. Switching an established site to a new extension costs time while search engines re-learn it, so choose well up front.

Our verdict, by kind of site

Based on what each extension signals to visitors and its three-year cost at today’s prices.

  • Startup or SaaS product.coBoth fit equally well; .co costs less over three years at today’s prices.
  • Local business.co.co is what local customers expect; .io reads as less local.
  • Tech or developer project.io.io signals a technical product or team at a glance; .co is less specific.
  • Online shop.co.co tells shoppers they can buy here or is the address they trust most; .io fits a shop less naturally.
  • Non-profit or community.coBoth fit equally well; .co costs less over three years at today’s prices.
  • Personal brand or portfolio.coBoth fit equally well; .co costs less over three years at today’s prices.

.io vs .co: questions and answers

.co is cheaper in the first year (.io RM141.40, .co RM75.86). Renewals are RM261.84 and RM152.70 a year, so three years cost RM665.08 for .io and RM381.26 for .co, in MYR before VAT where it applies.

Got the name? Register it in .io or .co

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