.io domains list

Download structured datasets with verified DNS, RDAP & WHOIS, and technology fields for all .io domains.
Access a complete list of .io domains with active DNS records, WHOIS data, IPs, and detected technologies — all verified and updated daily.

Analytics overview of .io domains in webatla

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

New domain registrations

773 last week
42,774 last month

Active domains

1,409,448 active domains

DNS

1,201,969 domains with DNS records

Countries

Domains from 148 countries

RDAP and WHOIS

1,409,364 domains with RDAP and WHOIS records

IP addresses

Includes 175,144 unique IPs hosting active domains

Average Harmonic Value: 3,111,369.25

A metric that estimates network influence and trust, based on the link structure of domains using .io TLD

Average PR Value: 0.00000000575

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

Database preview of .io domains

Preview the top .io domains
Last updated: 2026-01-15
TLD Domain TLD suffix Country IP address Technologies PR value Harmonic value Detected hosts count DNS last data checked DNS Status DNS records RDAP/WHOIS last data checked RDAP/WHOIS method Domain creation date Domain expiration date Domain last changed Registrar RDAP/WHOIS Record
io github.io io United States (US) 185.199.111.153 ["Varnish Cache"] 0.00041926855 21,457,116.00 2026/01/11 1 {"A": ["185.199.111.153", "185.199.10... 2025/07/04 WHOIS 2013/03/08 2027/03/08 2025/02/09 MarkMonitor Inc. {"raw_response": ...
io trustindex.io io United States (US) 3.167.227.100 ["Google Tag Manager", "Google AdSens... 0.00010465763 18,774,156.00 2025/12/30 1 {"A": ["3.167.227.100", "3.167.227.78... 2025/07/06 WHOIS 2017/07/28 2028/07/28 2024/07/04 NameCheap, Inc. {"raw_response": ...
io readthedocs.io io United States (US) 104.16.253.120 ["Cloudflare"] 0.00007520908 20,663,244.00 2026/01/13 1 {"A": ["104.16.253.120", "104.16.254.... 2025/07/10 WHOIS 2014/06/14 2028/06/14 2025/06/28 Cloudflare, Inc {"raw_response": ...
io statuspage.io io United States (US) 104.192.142.22 ["Google Analytics"] 0.00005226943 19,350,414.00 2025/12/28 1 {"A": ["104.192.142.22", "104.192.142... 2025/08/15 WHOIS 2012/10/04 2026/10/04 2024/09/07 MarkMonitor Inc. {"raw_response": ...
io codepen.io io United States (US) 104.16.147.32 ["Cloudflare"] 0.00004087949 19,939,122.00 2026/01/10 1 {"A": ["104.16.147.32", "104.16.163.3... 2025/07/14 WHOIS 2012/02/26 2028/02/26 2024/11/18 Gandi SAS {"raw_response": ...
io sanity.io io United States (US) 35.186.225.23 ["Google Tag Manager", "NGINX", "Verc... 0.00003825935 19,909,890.00 2026/01/14 1 {"A": ["35.186.225.23"], "MX": [{"hos... 2025/07/14 WHOIS 2015/01/07 2027/01/07 2022/11/12 NameCheap, Inc. {"raw_response": ...
io globalping.io io United States (US) 216.24.57.1 ["Mailchimp", "Cloudflare"] 0.00003795287 14,988,396.00 2026/01/09 1 {"A": ["216.24.57.1"], "MX": [{"host"... 2025/07/04 WHOIS 2022/03/06 2026/03/06 2025/06/23 Amazon Registrar, Inc. {"raw_response": ...
io adobe.io io United States (US) 50.16.47.176 ["Varnish Cache", "OpenResty"] 0.00003790334 16,684,186.00 2026/01/14 1 {"A": ["50.16.47.176", "34.237.241.83... 2025/07/06 WHOIS 2012/03/12 2026/03/12 2025/02/15 Nom-iq Ltd. dba COM LAUDE {"raw_response": ...
io complianz.io io United States (US) 172.67.138.205 ["WordPress", "PHP", "Cloudflare"] 0.00003761059 18,536,182.00 2026/01/07 1 {"A": ["172.67.138.205", "104.21.70.1... 2025/07/14 WHOIS 2018/04/27 2026/04/27 2025/06/11 Key-Systems GmbH {"raw_response": ...
io xhmikosr.io io United States (US) 188.114.96.1 ["Google Analytics", "Cloudflare"] 0.00003733486 14,973,398.00 2026/01/14 1 {"A": ["188.114.96.1", "188.114.97.1"... 2025/08/12 WHOIS 2016/01/08 2031/01/08 2024/12/20 Gandi SAS {"raw_response": ...
io termly.io io United States (US) 104.18.31.234 ["Google Tag Manager", "Cloudflare"] 0.00003618894 19,016,832.00 2026/01/14 1 {"A": ["104.18.31.234", "104.18.30.23... 2025/08/17 WHOIS 2016/07/26 2026/07/26 2024/03/17 One.com A/S {"raw_response": ...
io webflow.io io United States (US) 44.196.170.37 ["Google Analytics"] 0.00003311497 19,596,906.00 2025/12/30 1 {"A": ["44.196.170.37", "54.159.219.1... 2025/08/29 WHOIS 2013/05/08 2028/05/08 2024/12/12 MarkMonitor Inc. {"raw_response": ...
io devowl.io io United States (US) 104.26.8.60 ["WordPress", "PHP", "Cloudflare"] 0.00003079394 18,226,282.00 2025/12/30 1 {"A": ["104.26.8.60", "172.67.71.206"... 2025/07/07 WHOIS 2019/10/31 2026/10/31 2024/12/16 1API GmbH {"raw_response": ...
io sentry.io io United States (US) 35.186.247.156 ["Envoy Proxy", "Google Tag Manager",... 0.00002800684 19,379,816.00 2025/12/31 1 {"A": ["35.186.247.156"], "MX": [{"ho... 2025/07/05 WHOIS 2012/04/07 2026/04/07 2025/03/12 Gandi SAS {"raw_response": ...
io borlabs.io io Germany (DE) 88.99.4.30 ["xt:Commerce", "Plesk", "WordPress",... 0.00002514750 18,223,716.00 2026/01/14 1 {"A": ["88.99.4.30"], "MX": [{"host":... 2026/01/06 WHOIS 2015/12/30 2026/12/30 2025/12/30 Key-Systems GmbH {"raw_response": ...
io imagekit.io io United States (US) 18.165.122.80 ["Google Tag Manager", "Amazon CloudF... 0.00002342262 19,750,282.00 2026/01/09 1 {"A": ["18.165.122.80", "18.165.122.1... 2025/07/11 WHOIS 2016/01/17 2027/01/17 2024/08/07 GoDaddy.com, LLC {"raw_response": ...
io gohugo.io io Germany (DE) 35.157.26.135 ["Google Tag Manager"] 0.00002312176 19,048,148.00 2026/01/10 1 {"A": ["35.157.26.135", "63.176.8.218... 2025/09/12 WHOIS 2014/09/17 2026/09/17 2025/08/23 Cloudflare, Inc {"raw_response": ...
io bubble.io io United States (US) 104.17.124.183 ["Cloudflare"] 0.00002184870 19,113,084.00 2026/01/01 1 {"A": ["104.17.124.183", "104.17.123.... 2025/07/09 WHOIS 2008/01/05 2029/04/30 2021/03/15 Cloudflare, Inc {"raw_response": ...
io pypa.io io United States (US) 159.89.245.108 ["NGINX", "Cloudflare"] 0.00002177177 19,234,286.00 2025/12/31 1 {"A": ["159.89.245.108", "167.99.21.1... 2025/07/11 WHOIS 2014/04/20 2033/04/20 2025/06/17 Gandi SAS {"raw_response": ...
io greenhouse.io io United States (US) 44.238.253.222 ["Google Analytics"] 0.00001952897 19,704,244.00 2026/01/14 1 {"A": ["44.238.253.222", "50.112.216.... 2025/08/16 WHOIS 2012/05/01 2026/05/01 2025/04/05 Gandi SAS {"raw_response": ...
io kubernetes.io io United States (US) 3.33.186.135 ["Google Tag Manager", "Mailchimp"] 0.00001839097 19,509,284.00 2025/12/31 1 {"A": ["3.33.186.135", "15.197.167.90... 2025/09/08 WHOIS 2014/07/23 2026/07/23 2025/09/06 1API GmbH {"raw_response": ...
io gabia.io io South Korea (KR) 121.254.178.252 ["Apache HTTP Server"] 0.00001814561 15,347,440.00 2026/01/03 1 {"A": ["121.254.178.252"], "NS": ["ns... 2025/11/21 WHOIS 2017/12/20 2026/12/20 2025/09/23 Gabia, Inc. {"raw_response": ...
io itch.io io United States (US) 104.26.8.198 ["Google Analytics"] 0.00001796981 19,257,052.00 2026/01/02 1 {"A": ["104.26.8.198", "172.67.69.99"... 2025/08/16 WHOIS 2011/10/27 2030/10/27 2024/12/22 1API GmbH {"raw_response": ...
io prismic.io io United States (US) 44.217.117.152 ["Google Analytics"] 0.00001767223 19,037,162.00 2025/12/29 1 {"A": ["44.217.117.152", "54.204.132.... 2025/07/04 WHOIS 2013/06/05 2026/06/05 2025/05/06 Gandi SAS {"raw_response": ...
io gitbook.io io United States (US) 172.64.147.209 ["Google Tag Manager", "Cloudflare"] 0.00001757859 19,724,832.00 2026/01/08 1 {"A": ["172.64.147.209", "104.18.40.4... 2025/07/04 WHOIS 2014/03/30 2026/03/30 2025/03/05 Cloudflare, Inc {"raw_response": ...

Download full list of .io domains with tech detailed information

The largest database of live domains and detailed information about them, designed to boost your digital strategies.

.io domains share by TLD suffix

TLD suffix Count Domain Percentage of TLD suffix
.io 1,096,519 77.80
.github.io 166,828 11.84
.webflow.io 104,380 7.41
.readthedocs.io 23,802 1.69
.gitlab.io 4,542 0.32
.pantheonsite.io 4,302 0.31
.bubbleapps.io 2,359 0.17
.gitbook.io 2,286 0.16
.editorx.io 1,397 0.10
.bitbucket.io 1,240 0.09
.wixstudio.io 585 0.04
.ngrok.io 396 0.03
.icp0.io 136 0.01
.cleverapps.io 132 0.01
.hzc.io 101 0.01
.qzz.io 78 0.01
.dedyn.io 43 0.00
.apigee.io 34 0.00
.ap.ngrok.io 26 0.00
.tickets.io 26 0.00
.hypernode.io 23 0.00
.eu.ngrok.io 19 0.00
.lolipop.io 18 0.00
.cdn.bubble.io 17 0.00
.sandcats.io 14 0.00
.id.forgerock.io 13 0.00
.telebit.io 12 0.00
.beagleboard.io 11 0.00
.pstmn.io 11 0.00
.protonet.io 9 0.00
.fh-muenster.io 8 0.00
.2038.io 7 0.00
.bluebite.io 7 0.00
.bubble.io 7 0.00
.jp.ngrok.io 7 0.00
.utwente.io 6 0.00
.myrdbx.io 5 0.00
.au.ngrok.io 4 0.00
.sa.ngrok.io 4 0.00
.edugit.io 3 0.00
.gov.io 3 0.00
.in.ngrok.io 3 0.00
.resindevice.io 3 0.00
.b-data.io 2 0.00
.myaddr.io 2 0.00
.qoto.io 2 0.00
.webthings.io 2 0.00
.basicserver.io 1 0.00
.dyndns.dappnode.io 1 0.00
.eastus.azurecontainer.io 1 0.00
.hasura-app.io 1 0.00
.juolv-3yaaa-aaaal-ajc6a-cai.raw.icp0.io 1 0.00
.loginline.io 1 0.00
.mock.pstmn.io 1 0.00
.musician.io 1 0.00
.oufli-yiaaa-aaaae-aakbq-cai.raw.icp0.io 1 0.00
.rb-hosting.io 1 0.00
.sekd1.beebyteapp.io 1 0.00
.teiwz-pqaaa-aaaap-ag7hq-cai.raw.icp0.io 1 0.00
.us.ngrok.io 1 0.00
.westeurope.azurecontainer.io 1 0.00

.io domains share by technologies

Technology Count Domain Percentage of Technology
Google Tag Manager 56,093 16.86
Cloudflare 50,445 15.16
PHP 32,744 9.84
NGINX 28,699 8.62
WordPress 28,113 8.45
Apache HTTP Server 23,664 7.11
OpenResty 19,165 5.76
Google Analytics 19,014 5.71
Amazon CloudFront 7,460 2.24
Facebook 7,049 2.12
Google reCAPTCHA 6,567 1.97
LiteSpeed Web Server 6,511 1.96
Vercel 4,882 1.47
AdBlock 4,680 1.41
Gravatar 4,332 1.30
Wix 3,964 1.19
Google AdSense 3,468 1.04
Laravel 3,064 0.92
Varnish Cache 2,896 0.87
WooCommerce 2,545 0.76
Plesk 2,035 0.61
Nuxt.js 2,004 0.60
Mailchimp 1,562 0.47
ASP.NET 1,531 0.46
[] 1,389 0.42
Shopify 1,266 0.38
Microsoft IIS 1,236 0.37
Stripe 1,077 0.32
Envoy Proxy 1,024 0.31
Squarespace 945 0.28
Drupal 512 0.15
LiveChat 337 0.10
Sucuri 220 0.07
PayPal 204 0.06
Yandex Metrica 187 0.06
Odoo 186 0.06
New Relic 185 0.06
Piwik (Matomo) 176 0.05
Akamai 161 0.05
amazon 159 0.05
Joomla 133 0.04
kestrel 131 0.04
Zend Framework 124 0.04
Pepyaka 95 0.03
TYPO3 95 0.03
Bitrix CMS 54 0.02
phpBB 53 0.02
BigCommerce 50 0.02
Zendesk 48 0.01
Weebly 44 0.01
Lighttpd 36 0.01
nopCommerce 18 0.01
Optimizely 17 0.01
Jimdo 15 0.00
Magento 15 0.00
PrestaShop 15 0.00
CakePHP 13 0.00
Tilda 9 0.00
Sitefinity 9 0.00
Authorize.Net 8 0.00
DokuWiki 8 0.00
OpenCart 8 0.00
Cornerstone OnDemand 3 0.00
vBulletin 3 0.00
Square 2 0.00
STRATO SmartWebsite 2 0.00
xt:Commerce 2 0.00
Zen Cart 2 0.00
Backdrop CMS 1 0.00
JTL-Shop 1 0.00
Orchard CMS 1 0.00

.io domains share by countries

Country Count Domain Percentage of Country
United States (US) 1,023,133 85.22
Germany (DE) 55,357 4.61
France (FR) 19,476 1.62
Netherlands (NL) 16,371 1.36
Lithuania (LT) 14,297 1.19
Canada (CA) 8,843 0.74
United Kingdom (GB) 8,048 0.67
Australia (AU) 7,439 0.62
Singapore (SG) 4,435 0.37
India (IN) 4,058 0.34
Russia (RU) 3,309 0.28
Denmark (DK) 3,008 0.25
British Virgin Islands (VG) 2,713 0.23
Switzerland (CH) 2,569 0.21
Ireland (IE) 2,284 0.19
South Korea (KR) 2,182 0.18
Finland (FI) 2,068 0.17
Brazil (BR) 2,062 0.17
Sweden (SE) 1,597 0.13
Japan (JP) 1,512 0.13
Hong Kong (HK) 1,467 0.12
Poland (PL) 1,263 0.11
Italy (IT) 1,141 0.10
Belgium (BE) 1,111 0.09
Spain (ES) 1,054 0.09
Indonesia (ID) 748 0.06
Norway (NO) 697 0.06
Austria (AT) 696 0.06
South Africa (ZA) 653 0.05
Czech Republic (CZ) 494 0.04
Turkey (TR) 460 0.04
Ukraine (UA) 450 0.04
Vietnam (VN) 422 0.04
Malaysia (MY) 379 0.03
Romania (RO) 295 0.02
Bulgaria (BG) 280 0.02
China (CN) 269 0.02
Estonia (EE) 265 0.02
Iran (IR) 244 0.02
Slovakia (SK) 240 0.02
United Arab Emirates (AE) 206 0.02
Taiwan (TW) 195 0.02
Hungary (HU) 189 0.02
Israel (IL) 189 0.02
Luxembourg (LU) 142 0.01
Iceland (IS) 138 0.01
Slovenia (SI) 127 0.01
Argentina (AR) 122 0.01
Portugal (PT) 119 0.01
Kazakhstan (KZ) 118 0.01
Greece (GR) 114 0.01
Thailand (TH) 106 0.01
New Zealand (NZ) 103 0.01
Moldova (MD) 94 0.01
Chile (CL) 82 0.01
Seychelles (SC) 79 0.01
Belarus (BY) 74 0.01
Croatia (HR) 65 0.01
Serbia (RS) 62 0.01
Latvia (LV) 60 0.00
Belize (BZ) 58 0.00
Mexico (MX) 53 0.00
Isle of Man (IM) 51 0.00
Saudi Arabia (SA) 48 0.00
Cyprus (CY) 39 0.00
Bangladesh (BD) 36 0.00
Armenia (AM) 35 0.00
Cambodia (KH) 34 0.00
Pakistan (PK) 28 0.00
Kenya (KE) 27 0.00
Mauritius (MU) 27 0.00
Bahrain (BH) 26 0.00
Tunisia (TN) 23 0.00
Uzbekistan (UZ) 22 0.00
Panama (PA) 18 0.00
Georgia (GE) 13 0.00
Azerbaijan (AZ) 11 0.00
Colombia (CO) 11 0.00
Costa Rica (CR) 11 0.00
Nigeria (NG) 9 0.00
Peru (PE) 9 0.00
Ghana (GH) 8 0.00
Kyrgyzstan (KG) 8 0.00
Morocco (MA) 8 0.00
Nepal (NP) 8 0.00
Philippines (PH) 8 0.00
Reunion (RE) 8 0.00
Curaçao (CW) 7 0.00
Kuwait (KW) 7 0.00
North Macedonia (MK) 7 0.00
Puerto Rico (PR) 7 0.00
Qatar (QA) 7 0.00
Andorra (AD) 6 0.00
Bosnia and Herzegovina (BA) 6 0.00
Uruguay (UY) 6 0.00
Venezuela (VE) 6 0.00
Egypt (EG) 5 0.00
Oman (OM) 5 0.00
Turkmenistan (TM) 5 0.00
Ethiopia (ET) 4 0.00
Gibraltar (GI) 4 0.00
Jordan (JO) 4 0.00
Malta (MT) 4 0.00
Senegal (SN) 4 0.00
Albania (AL) 3 0.00
Bahamas (BS) 3 0.00
Dominican Republic (DO) 3 0.00
Honduras (HN) 3 0.00
Kosovo (XK) 3 0.00
Liechtenstein (LI) 3 0.00
Mongolia (MN) 3 0.00
Algeria (DZ) 2 0.00
Barbados (BB) 2 0.00
Bolivia (BO) 2 0.00
Cameroon (CM) 2 0.00
Guatemala (GT) 2 0.00
Ivory Coast (CI) 2 0.00
Libya (LY) 2 0.00
Macau (MO) 2 0.00
Mali (ML) 2 0.00
Monaco (MC) 2 0.00
New Caledonia (NC) 2 0.00
Tajikistan (TJ) 2 0.00
Aland Islands (AX) 1 0.00
Botswana (BW) 1 0.00
Cayman Islands (KY) 1 0.00
Ecuador (EC) 1 0.00
Equatorial Guinea (GQ) 1 0.00
French Guiana (GF) 1 0.00
French Polynesia (PF) 1 0.00
Guernsey (GG) 1 0.00
Iraq (IQ) 1 0.00
Jersey (JE) 1 0.00
Madagascar (MG) 1 0.00
Malawi (MW) 1 0.00
Marshall Islands (MH) 1 0.00
Mayotte (YT) 1 0.00
Montenegro (ME) 1 0.00
Myanmar (MM) 1 0.00
Namibia (NA) 1 0.00
Palestine (PS) 1 0.00
Paraguay (PY) 1 0.00
Saint Pierre and Miquelon (PM) 1 0.00
Somalia (SO) 1 0.00
Tanzania (TZ) 1 0.00
Uganda (UG) 1 0.00
Zambia (ZM) 1 0.00
Zimbabwe (ZW) 1 0.00

What is .io TLD

The .io top-level domain is a country-code TLD repurposed for global use. In practice, .io domains function as neutral, location-agnostic identifiers, often chosen by technology firms because the string echoes input/output in computing. We monitor adoption across sectors and geographies, mapping .io websites by activity, hosting, and DNS signals. Our index shows 1,409,448 active registrations and 1,201,969 live .io websites distributed across 148 countries, reflecting sustained international usage beyond the territory of origin. We also track configuration quality, resilience indicators, and churn to support risk and market analyses. This makes .io domains observable at scale through comparable metrics, not anecdotes. Download webatla’s .io domain datasets to explore the namespace.

History and key features of .io TLD

Originally delegated as the country-code for the British Indian Ocean Territory, the .io TLD has evolved into a broadly adopted namespace for startups, developer tooling, and data-focused services. Key characteristics include a short, memorable label, wide registrar availability, and security features typical of modern ccTLDs. In our measurements, operational adoption is high: 1,201,969 .io domains publish DNS records, and a substantial share resolve to .io websites with consistent uptime and diverse hosting footprints. We analyze lifecycle trends, nameserver concentration, and reuse patterns to understand stability and risk. Growth remains steady without sharp spikes typical of speculative cycles, indicating durable utility across markets. Download historical and current .io domain datasets from webatla.

Why and who choose the .io domain

Organizations choose the .io domain for technical associations, global neutrality, and availability of concise names. Typical adopters include venture-backed startups, SaaS vendors, open-source projects, gaming studios, and fintechs, though usage is now broader. We observe active demand signals in recent flows: 773 new .io domains registered last week and 42,774 in December 2025 entering the zone, with sustained conversion into .io websites across multiple hosting regions. Selection factors we quantify include lexical brevity, brandability, and cross-border compatibility, alongside DNS hygiene and TLS deployment rates. These profiles help investors, security teams, and marketers benchmark cohorts against adjacent namespaces. Download segmented .io domain datasets from webatla for competitive analysis.

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The largest database of live domains and detailed information about them, designed to boost your digital strategies.

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