1,185 last week
46,880 last month
1,434,812 active domains
1,238,198 domains with DNS records
Domains from 141 countries
1,399,432 domains with RDAP and WHOIS records
Includes 129,822 unique IPs hosting active domains
A metric that estimates network influence and trust, based on the link structure of domains using .io TLD
The average PageRank score reflecting the SEO authority of websites with the .io TLD
| 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 | trustindex.io | io | United States (US) | 3.167.227.100 | ["Google Tag Manager", "Google AdSens... | 0.00011353657 | 16,262,045.00 | 2026/04/11 | 1 | {"A": ["3.167.227.100", "3.167.227.63... | 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"] | 0.00009438534 | 20,085,382.00 | 2026/04/09 | 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 | updown.io | io | Germany (DE) | 178.63.21.176 | ["NGINX"] | 0.00005991808 | 15,395,538.00 | 2026/04/10 | 1 | {"A": ["178.63.21.176"], "MX": [{"hos... | 2025/07/07 | WHOIS | 2012/07/16 | 2030/07/16 | 2023/01/21 | OVH SAS | {"raw_response": ... | |
| io | sanity.io | io | United States (US) | 35.186.225.23 | ["Google Tag Manager", "NGINX", "Verc... | 0.00004411244 | 19,571,152.00 | 2026/04/10 | 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 | branch.io | io | United States (US) | 18.66.122.16 | ["Google Analytics"] | 0.00004239662 | 18,475,900.00 | 2026/04/09 | 1 | {"A": ["18.66.122.16", "18.66.122.44"... | 2025/07/24 | WHOIS | 2011/11/10 | 2026/11/10 | 2024/11/15 | Gandi SAS | {"raw_response": ... | |
| io | complianz.io | io | United States (US) | 104.21.70.194 | ["WordPress", "PHP", "Cloudflare"] | 0.00004107278 | 18,150,708.00 | 2026/04/06 | 1 | {"A": ["104.21.70.194", "172.67.138.2... | 2025/07/14 | WHOIS | 2018/04/27 | 2026/04/27 | 2025/06/11 | Key-Systems GmbH | {"raw_response": ... | |
| io | codepen.io | io | United States (US) | 104.16.147.32 | ["Cloudflare"] | 0.00003785790 | 19,287,602.00 | 2026/04/12 | 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 | termly.io | io | United States (US) | 104.18.30.234 | ["Google Tag Manager", "Cloudflare"] | 0.00003762034 | 18,597,666.00 | 2026/04/07 | 1 | {"A": ["104.18.30.234", "104.18.31.23... | 2025/08/17 | WHOIS | 2016/07/26 | 2026/07/26 | 2024/03/17 | One.com A/S | {"raw_response": ... | |
| io | devowl.io | io | United States (US) | 104.26.8.60 | ["WordPress", "PHP", "Cloudflare"] | 0.00003121296 | 17,972,790.00 | 2026/04/11 | 1 | {"A": ["104.26.8.60", "104.26.9.60", ... | 2025/07/07 | WHOIS | 2019/10/31 | 2026/10/31 | 2024/12/16 | 1API GmbH | {"raw_response": ... | |
| io | webflow.io | io | United States (US) | 44.211.113.124 | ["Google Analytics"] | 0.00003037708 | 19,121,466.00 | 2026/04/08 | 1 | {"A": ["44.211.113.124", "54.86.247.2... | 2025/08/29 | WHOIS | 2013/05/08 | 2028/05/08 | 2024/12/12 | MarkMonitor Inc. | {"raw_response": ... | |
| io | sentry.io | io | United States (US) | 35.186.247.156 | ["Envoy Proxy", "Google Tag Manager",... | 0.00002658157 | 18,876,266.00 | 2026/04/07 | 1 | {"A": ["35.186.247.156"], "MX": [{"ho... | 2026/03/11 | WHOIS | 2012/04/07 | 2027/04/07 | 2026/03/07 | Gandi SAS | {"raw_response": ... | |
| io | builder.io | io | United States (US) | 151.101.1.195 | ["Varnish Cache"] | 0.00002610295 | 18,386,942.00 | 2026/04/12 | 1 | {"A": ["151.101.1.195", "151.101.65.1... | 2025/07/11 | WHOIS | 2013/05/19 | 2026/05/19 | 2025/04/24 | NameCheap, Inc. | {"raw_response": ... | |
| io | imagekit.io | io | United States (US) | 65.8.131.39 | ["Google Tag Manager", "Amazon CloudF... | 0.00002594822 | 18,331,780.00 | 2026/04/06 | 1 | {"A": ["65.8.131.39", "65.8.131.8", "... | 2025/07/11 | WHOIS | 2016/01/17 | 2027/01/17 | 2024/08/07 | GoDaddy.com, LLC | {"raw_response": ... | |
| io | borlabs.io | io | Germany (DE) | 88.99.4.30 | ["xt:Commerce", "Plesk", "WordPress",... | 0.00002557552 | 17,817,408.00 | 2026/04/09 | 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 | gohugo.io | io | Germany (DE) | 35.157.26.135 | ["Google Tag Manager"] | 0.00002497392 | 18,576,410.00 | 2026/04/07 | 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 | kubernetes.io | io | United States (US) | 15.197.167.90 | ["Google Tag Manager", "Mailchimp"] | 0.00002491187 | 19,426,476.00 | 2026/04/09 | 1 | {"A": ["15.197.167.90", "3.33.186.135... | 2025/09/08 | WHOIS | 2014/07/23 | 2026/07/23 | 2025/09/06 | 1API GmbH | {"raw_response": ... | |
| io | sourceforge.io | io | United States (US) | 104.18.10.31 | ["Google Analytics"] | 0.00002230637 | 18,524,172.00 | 2026/04/07 | 1 | {"A": ["104.18.10.31", "104.18.11.31"... | 2025/09/06 | WHOIS | 2013/04/12 | 2027/04/12 | 2024/08/23 | GoDaddy.com, LLC | {"raw_response": ... | |
| io | bubble.io | io | United States (US) | 104.17.123.183 | ["Cloudflare"] | 0.00002149473 | 18,223,866.00 | 2026/04/07 | 1 | {"A": ["104.17.123.183", "104.17.124.... | 2025/07/09 | WHOIS | 2008/01/05 | 2029/04/30 | 2021/03/15 | Cloudflare, Inc | {"raw_response": ... | |
| io | piano.io | io | United States (US) | 104.16.143.111 | ["Google Analytics"] | 0.00002126166 | 17,590,494.00 | 2026/04/07 | 1 | {"A": ["104.16.143.111", "104.16.144.... | 2025/09/09 | WHOIS | 2013/08/04 | 2026/08/04 | 2025/08/05 | GoDaddy.com, LLC | {"raw_response": ... | |
| io | gitbook.io | io | United States (US) | 104.18.40.47 | ["Google Tag Manager", "Cloudflare"] | 0.00002108499 | 19,159,032.00 | 2026/04/07 | 1 | {"A": ["104.18.40.47", "172.64.147.20... | 2026/03/11 | WHOIS | 2014/03/30 | 2031/03/30 | 2025/10/24 | Cloudflare, Inc | {"raw_response": ... | |
| io | itnext.io | io | United States (US) | 52.0.16.118 | ["Envoy Proxy", "Amazon CloudFront", ... | 0.00002089357 | 17,998,732.00 | 2026/04/08 | 1 | {"A": ["52.0.16.118", "52.1.119.170",... | 2026/03/12 | WHOIS | 2017/03/06 | 2027/03/06 | 2025/12/21 | Key-Systems GmbH | {"raw_response": ... | |
| io | pypa.io | io | United States (US) | 159.89.245.108 | ["NGINX", "Cloudflare"] | 0.00002043661 | 18,896,566.00 | 2026/04/11 | 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 | formspree.io | io | United States (US) | 172.66.40.119 | ["Google Analytics"] | 0.00001962640 | 15,449,501.00 | 2026/04/11 | 1 | {"A": ["172.66.40.119", "172.66.43.13... | 2025/11/08 | WHOIS | 2014/12/07 | 2026/12/07 | 2025/11/07 | Cloudflare, Inc | {"raw_response": ... | |
| io | openactive.io | io | United States (US) | 104.21.21.187 | ["Google Tag Manager", "WordPress", "... | 0.00001936373 | 14,597,525.00 | 2026/04/07 | 1 | {"A": ["104.21.21.187", "172.67.199.2... | 2025/09/07 | WHOIS | 2015/08/10 | 2026/08/10 | 2025/07/16 | Cloudflare, Inc | {"raw_response": ... | |
| io | greenhouse.io | io | United States (US) | 16.144.187.193 | ["Google Analytics"] | 0.00001900289 | 19,025,384.00 | 2026/04/09 | 1 | {"A": ["16.144.187.193", "35.155.102.... | 2025/08/16 | WHOIS | 2012/05/01 | 2026/05/01 | 2025/04/05 | Gandi SAS | {"raw_response": ... |
The largest database of live domains and detailed information about them, designed to boost your digital strategies.
| Technology | Count Domain | Percentage of Technology |
|---|---|---|
| Google Tag Manager | 56,405 | 16.81 |
| Cloudflare | 51,201 | 15.26 |
| PHP | 32,922 | 9.81 |
| NGINX | 28,931 | 8.62 |
| WordPress | 28,447 | 8.48 |
| Apache HTTP Server | 23,682 | 7.06 |
| OpenResty | 19,948 | 5.94 |
| Google Analytics | 18,361 | 5.47 |
| Amazon CloudFront | 7,483 | 2.23 |
| 7,001 | 2.09 | |
| LiteSpeed Web Server | 6,584 | 1.96 |
| Google reCAPTCHA | 6,527 | 1.94 |
| Vercel | 4,863 | 1.45 |
| AdBlock | 4,607 | 1.37 |
| Gravatar | 4,561 | 1.36 |
| Wix | 3,948 | 1.18 |
| Google AdSense | 3,385 | 1.01 |
| Laravel | 3,086 | 0.92 |
| Varnish Cache | 2,910 | 0.87 |
| WooCommerce | 2,544 | 0.76 |
| Plesk | 2,034 | 0.61 |
| Nuxt.js | 1,995 | 0.59 |
| ASP.NET | 1,550 | 0.46 |
| Mailchimp | 1,543 | 0.46 |
| [] | 1,370 | 0.41 |
| Shopify | 1,267 | 0.38 |
| Microsoft IIS | 1,245 | 0.37 |
| Squarespace | 1,094 | 0.33 |
| Stripe | 1,078 | 0.32 |
| Envoy Proxy | 1,019 | 0.30 |
| Authorize.Net | 611 | 0.18 |
| Drupal | 502 | 0.15 |
| LiveChat | 339 | 0.10 |
| New Relic | 233 | 0.07 |
| Sucuri | 218 | 0.06 |
| amazon | 197 | 0.06 |
| PayPal | 193 | 0.06 |
| Odoo | 188 | 0.06 |
| Yandex Metrica | 179 | 0.05 |
| Piwik (Matomo) | 172 | 0.05 |
| Akamai | 160 | 0.05 |
| kestrel | 145 | 0.04 |
| Joomla | 132 | 0.04 |
| Zend Framework | 124 | 0.04 |
| Pepyaka | 108 | 0.03 |
| TYPO3 | 96 | 0.03 |
| Bitrix CMS | 54 | 0.02 |
| phpBB | 53 | 0.02 |
| BigCommerce | 50 | 0.01 |
| Weebly | 48 | 0.01 |
| Zendesk | 47 | 0.01 |
| Lighttpd | 37 | 0.01 |
| Optimizely | 18 | 0.01 |
| nopCommerce | 17 | 0.01 |
| Magento | 16 | 0.00 |
| PrestaShop | 16 | 0.00 |
| Jimdo | 15 | 0.00 |
| CakePHP | 13 | 0.00 |
| Tilda | 12 | 0.00 |
| Sitefinity | 9 | 0.00 |
| DokuWiki | 8 | 0.00 |
| OpenCart | 8 | 0.00 |
| Cornerstone OnDemand | 3 | 0.00 |
| vBulletin | 3 | 0.00 |
| Zen Cart | 3 | 0.00 |
| Square | 2 | 0.00 |
| STRATO SmartWebsite | 2 | 0.00 |
| xt:Commerce | 2 | 0.00 |
| Backdrop CMS | 1 | 0.00 |
| JTL-Shop | 1 | 0.00 |
| Orchard CMS | 1 | 0.00 |
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 active registrations and live .io websites distributed across 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.
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: .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.
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: new .io domains registered last week and 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.
The largest database of live domains and detailed information about them, designed to boost your digital strategies.
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.
