Database updated: 2025/04/25
GetArgon

.io websites list

368 569 domains
Buy and Download Now

More detailed pricing ⭢

.io domains database

Access precise and up-to-date information on active websites and domains with the .io TLD from GetArgon’s comprehensive database.

368 569 websites

Total count of active websites in our database using the .io TLD.

72 618 contacts

The number of unique contact (emails & phones) points extracted from sites

From 116 countries

Indicates the international presence of these sites across .io countries

6 232 192 hosts

Sum of host records found across domains.

103 083 IPs

Count of unique IP addresses serving the websites with .io

Average Harmonic Value: 8 709 975.87

A metric that estimates network influence and trust, based on the link structure of domains using 10:19 am TLD

Average PR Value: 0.00000003300

The average PageRank score reflecting the SEO authority of websites with the .io TLD

List of .io websites

View a preview list of the top .io websites
Last updated: 2025/04/25
Showing 50 of 368 569 rows.

Download full list of .io websites with tech stack and contacts

CSV datasets with filters by countries, techologies, or TLD.

Full access for 12 months

Proceed to Checkout

See all pricing options ⭢

.io domain share by countries

Country Share in Country (%)
United States of America (US) 77.55
Germany (DE) 4.93
France (FR) 3.05
Netherlands (NL) 1.99
Australia (AU) 1.62
United Kingdom (GB) 1.55
Canada (CA) 1.45
Singapore (SG) 0.89
India (IN) 0.61
Russian Federation (RU) 0.57
Lithuania (LT) 0.51
Ireland (IE) 0.48
South Korea (KR) 0.47
Switzerland (CH) 0.36
Japan (JP) 0.32
Finland (FI) 0.32
Denmark (DK) 0.28
Hong Kong (HK) 0.27
Brazil (BR) 0.24
Poland (PL) 0.21
Belgium (BE) 0.20
Sweden (SE) 0.20
Spain (ES) 0.19
Italy (IT) 0.11
Indonesia (ID) 0.11

Language share on .io domains

Language Share in Country (%)
English 72.20
French 5.12
German 4.29
Spanish 3.67
Portuguese 1.47
Dutch 1.26
Korean 1.07
Russian 1.04
Japanese 0.99
Chinese 0.97
Italian 0.96
Polish 0.59
Swedish 0.47
Turkish 0.44
Danish 0.36
Arabic 0.31
Indonesian 0.30
Finnish 0.30
Vietnamese 0.29
Czech 0.21
Ukrainian 0.20
Hungarian 0.19
Romanian 0.18
Hebrew 0.17
Thai 0.17

What is .io and why it matters for your business

The .io domain is a country-code top-level domain (ccTLD) assigned to the British Indian Ocean Territory, but it has gained global popularity, especially among tech startups and digital platforms. Its appeal lies in its brevity, tech-oriented sound, and association with input/output (I/O), a foundational concept in computing. As a result, .io domains are commonly used by software companies, app developers, and SaaS providers. Businesses using .io websites benefit from a modern, innovation-focused image that aligns well with digital products and services. The .io domain helps convey a forward-looking brand identity and is often seen as a symbol of technical credibility.

History and key features of .io

The .io domain was introduced in 1997 and is administered by the Internet Computer Bureau (ICB), now a part of Afilias. Despite its origin as a country-specific TLD, it operates under open registration, allowing global use with no geographic restrictions. .io domains are DNSSEC-enabled, supporting secure transactions, and they also allow for short, memorable names—especially valuable in competitive tech markets. Over time, .io websites have become synonymous with startup culture, particularly in the technology and fintech sectors. The combination of branding flexibility, security features, and tech associations has contributed to the rising adoption of .io domains worldwide.

Why do businesses choose the .io domain

Businesses often choose .io domains for their strong association with technology, innovation, and startup culture. The domain has become popular among developers and product teams seeking modern, minimal, and brandable names for their .io websites. Unlike traditional TLDs, .io domains offer more availability for concise, single-word names, which is critical for building strong digital identities. Additionally, the perceived connection to the term “input/output” makes .io especially relevant for companies offering APIs, developer tools, or platforms. As a result, .io domains are frequently used by early-stage ventures and digital-first businesses aiming to project a technically proficient and forward-thinking image.

Buy and download the largest datasets today

Comprehensive domain database with detailed information

Buy and Download Now

More detailed pricing ⭢

FAQ

Can I preview the data?

Yes, you can view examples to see the file format and the amount of information provided. You can download them on the Pricing page, under each package.

All files are provided in CSV format. If you need a different format (XML, JSON, SQL), please contact our support team.

You need to make a purchase on our website. Once the payment is complete, you will receive a download link for the files in your selected package.

We only offer package solutions. You can check out our packages and pricing on the Pricing page.

Show all questions