Download list of all H2O sites

Name: Websites that use H2O
Creator: webatla
License: https://webatla.com/terms

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176 Sites detected

0.0% Of all websites

2.3.0 Most used version

Preview H2O site datasets

H2O detection is a value inside the Technologies column. Two datasets carry it, switch between them to compare what's included.

webatla-technologies-h2o-2026-10-03.jsonl.zst · 176 rows · 14 columns Daily fresh export

Domain	TLD suffix	TLD	Domain type	HTTP status	IP address	Country by IP	Social networks	Technologies last data checked	Technologies	PR value	Harmonic value	Domain creation date	Domain expiration date
andydavies.me	me	me	ICANN	HTTP 200	178.62.63.18	GB	{"x-twitter":["https://twitter.com/andydavies"]}	2026-09-27	C, H2O 2.3.0, RSS, Ruby, HTTP/2, Jekyll, jQuery, Favicon, GoDaddy, Modernizr	0.00000134593	15,120,049	2011-09-27	2028-09-27
caremad.io	io	io	ICANN	HTTP 200	45.55.144.177	US	—	2026-09-30	C, H2O 2.2.6, RSS, HSTS, Hugo 0.122.0, HTTP/2, Google Font API, Google Site Verification	0.000000374966	14,165,445	2013-03-14	2028-03-14
ahti.space	space	space	ICANN	HTTP 200	198.245.60.54	CA	{"github":["https://github.com/jgoerzen/pygopherd"]}	2026-09-26	C, H2O 2.2.6, HTTP/2, Cloudflare	0.00000000551697	10,341,388	2018-06-28	2028-06-28
wellingtonbuilding.co.nz	co.nz	nz	ICANN	HTTP 200	188.114.96.3	US	{"facebook":["https://facebook.com/wbsbuildingservices"],"instagram":["https://instagram.com/wellington_building_nz"]}	2026-09-22	C, H2O 2.3.0, HSTS, cdnjs, HTTP/2, Sentry, Favicon, Varnish, Bootstrap 5.3.8, Cloudflare	0.00000000544307	11,685,279	2014-09-07	—
abbeysigns.co.nz	co.nz	nz	ICANN	HTTP 200	112.109.67.241	NZ	{"instagram":["https://instagram.com/abbeysignsnz?igsh=MXRtZ3phMXdpdzJvNQ%3D%3D"]}	2026-09-25	Google Ads AW-941297674 AW-955110660 AW-978263418 AW-988153541 +3, Google Analytics G-6Z4RMTE0S3 G-GQYQ5F3S7L +1, Google Tag Manager GTM-WKDM667, C, H2O 2.3.0, HSTS, cdnjs, HTTP/2, Sentry, Favicon	0.00000000490055	9,527,936	2001-04-04	—
…	…	…	…	…	…	…	…	…	…	…	…	…	…

Domain	TLD suffix	TLD	Domain type	HTTP status	IP address	Country by IP	Social networks	Technologies last data checked	Technologies	DNS last data checked	DNS Status	DNS records	PR value	Harmonic value	RDAP/WHOIS last data checked	RDAP/WHOIS method	Domain creation date	Domain expiration date	Domain last changed	Registrar	RDAP/WHOIS Record	Response Status RDAP/WHOIS
andydavies.me	me	me	ICANN	HTTP 200	178.62.63.18	GB	{"x-twitter":["https://twitter.com/andydavies"]}	2026-09-27	C, H2O 2.3.0, RSS, Ruby, HTTP/2, Jekyll, jQuery, Favicon, GoDaddy, Modernizr	2026-09-22	TRUE	{"A":["178.62.63.18"],"MX":[{"host":"mail.vhdns.net","priority":0},{"host":"mx.daily.co.uk","priority":10}],"NS":["ns41.domaincontrol.com","ns42.domaincontrol.com"],"SOA":{"mname":"ns41.domaincontrol.com","retry":7200,"rname":"dns.jomax.net","expire":604800,"serial":2024113000,"minimum":600,"refresh":28800},"TXT":["google-site-verification=oLYv-8sfM6T5JuvdNftrIF-ADT8URHpHigQ702W00Qk","yandex-verification: b5630dd197270b28"]}	0.00000134593	15,120,049	2025-07-06	WHOIS	2011-09-27	2028-09-27	2024-11-30	Mesh Digital Limited	{"raw_response":"Domain Name: andydavies.me\r\nRegistry Domain ID: c9e948ce340a4855902a36dd86e3b38a-DONUTS\r\nRegistrar WHOIS Server: domains.meshdigital.com\r\nRegistrar URL: http://www.domainbox.com\r\nUpdated Date: 2024-11-30T16:21:16Z\r\nCreation Date: 2011-09-27T10:14:30Z\r\nRegistry Expiry Date: 2028-09-27T10:14:30Z\r\nRegistrar: Mesh Digital Limited\r\nRegistrar IANA ID: 1390\r\nRegistrar Abuse Contact Email: abuse@domainbox.com\r\nRegistrar Abuse Contact Phone: +1.8779770099\r\nDomain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited\r\nDomain Status: clientRenewProhibited https://icann.org/epp#clientRenewProhibited\r\nDomain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited\r\nDomain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited\r\nRegistry Registrant ID: REDACTED\r\nRegistrant Name: REDACTED\r\nRegistrant Organization: Domains By Proxy, LLC\r\nRegistrant Street: REDACTED\r\nRegistrant City: REDACTED\r\nRegistrant State/Province: Arizona\r\nRegistrant Postal Code: REDACTED\r\nRegistrant Country: US\r\nRegistrant Phone: REDACTED\r\nRegistrant Phone Ext: REDACTED\r\nRegistrant Fax: REDACTED\r\nRegistrant Fax Ext: REDACTED\r\nRegistrant Email: REDACTED\r\nRegistry Admin ID: REDACTED\r\nAdmin Name: REDACTED\r\nAdmin Organization: REDACTED\r\nAdmin Street: REDACTED\r\nAdmin City: REDACTED\r\nAdmin State/Province: REDACTED\r\nAdmin Postal Code: REDACTED\r\nAdmin Country: REDACTED\r\nAdmin Phone: REDACTED\r\nAdmin Phone Ext: REDACTED\r\nAdmin Fax: REDACTED\r\nAdmin Fax Ext: REDACTED\r\nAdmin Email: REDACTED\r\nRegistry Tech ID: REDACTED\r\nTech Name: REDACTED\r\nTech Organization: REDACTED\r\nTech Street: REDACTED\r\nTech City: REDACTED\r\nTech State/Province: REDACTED\r\nTech Postal Code: REDACTED\r\nTech Country: REDACTED\r\nTech Phone: REDACTED\r\nTech Phone Ext: REDACTED\r\nTech Fax: REDACTED\r\nTech Fax Ext: REDACTED\r\nTech Email: REDACTED\r\nName Server: ns41.domaincontrol.com\r\nName Server: ns42.domaincontrol.com\r\nDNSSEC: unsigned\r\nURL of the ICANN Whois Inaccuracy Complaint Form: https://icann.org/wicf/\r\n>>> Last update of WHOIS database: 2025-07-06T12:28:09Z <<<\r\n\r\nFor more information on Whois status codes, please visit https://icann.org/epp\r\n\r\nTerms of Use: Access to WHOIS information is provided to assist persons in determining the contents of a domain name registration record in the registry database. The data in this record is provided by Identity Digital or the Registry Operator for informational purposes only, and accuracy is not guaranteed. This service is intended only for query-based access. You agree that you will use this data only for lawful purposes and that, under no circumstances will you use this data to (a) allow, enable, or otherwise support the transmission by e-mail, telephone, or facsimile of mass unsolicited, commercial advertising or solicitations to entities other than the data recipient's own existing customers; or (b) enable high volume, automated, electronic processes that send queries or data to the systems of Registry Operator, a Registrar, or Identity Digital except as reasonably necessary to register domain names or modify existing registrations. When using the Whois service, please consider the following: The Whois service is not a replacement for standard EPP commands to the SRS service. Whois is not considered authoritative for registered domain objects. The Whois service may be scheduled for downtime during production or OT&E maintenance periods. Queries to the Whois services are throttled. If too many queries are received from a single IP address within a specified time, the service will begin to reject further queries for a period of time to prevent disruption of Whois service access. Abuse of the Whois system through data mining is mitigated by detecting and limiting bulk query access from single sources. Where applicable, the presence of a [Non-Public Data] tag indicates that such data is not made publicly available due to applicable data privacy laws or requirements. Should you wish to contact the registrant, please refer to the Whois records available through the registrar URL listed above. Access to non-public data may be provided, upon request, where it can be reasonably confirmed that the requester holds a specific legitimate interest and a proper legal basis for accessing the withheld data. Access to this data provided by Identity Digital can be requested by submitting a request via the form found at https://www.identity.digital/about/policies/whois-layered-access/. The Registrar of Record identified in this output may have an RDDS service that can be queried for additional information on how to contact the Registrant, Admin, or Tech contact of the queried domain name. Identity Digital Inc. and Registry Operator reserve the right to modify these terms at any time. By submitting this query, you agree to abide by this policy.\r\n"}	Domain is active
caremad.io	io	io	ICANN	HTTP 200	45.55.144.177	US	—	2026-09-30	C, H2O 2.2.6, RSS, HSTS, Hugo 0.122.0, HTTP/2, Google Font API, Google Site Verification	2026-09-19	TRUE	{"A":["45.55.144.177"],"MX":[{"host":"in1-smtp.messagingengine.com","priority":10},{"host":"in2-smtp.messagingengine.com","priority":20}],"NS":["ns1.digitalocean.com","ns2.digitalocean.com","ns3.digitalocean.com"],"SOA":{"mname":"ns1.digitalocean.com","retry":3600,"rname":"hostmaster.caremad.io","expire":604800,"serial":0,"minimum":1800,"refresh":10800},"AAAA":["2604:a880:800:10::1963:e001"]}	0.000000374966	14,165,445	2026-03-12	WHOIS	2013-03-14	2028-03-14	2026-03-01	Porkbun LLC	{"raw_response":"Domain Name: caremad.io\r\nRegistry Domain ID: REDACTED\r\nRegistrar WHOIS Server: whois.porkbun.com\r\nRegistrar URL: http://porkbun.com\r\nUpdated Date: 2026-03-01T14:43:12Z\r\nCreation Date: 2013-03-14T01:37:29Z\r\nRegistry Expiry Date: 2028-03-14T01:37:29Z\r\nRegistrar: Porkbun LLC\r\nRegistrar IANA ID: 1861\r\nRegistrar Abuse Contact Email: abuse+registry@porkbun.com\r\nRegistrar Abuse Contact Phone: +1.8557675286\r\nDomain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited\r\nDomain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited\r\nRegistry Registrant ID: REDACTED\r\nRegistrant Name: REDACTED\r\nRegistrant Organization: Private by Design, LLC\r\nRegistrant Street: REDACTED\r\nRegistrant City: REDACTED\r\nRegistrant State/Province: NC\r\nRegistrant Postal Code: REDACTED\r\nRegistrant Country: US\r\nRegistrant Phone: REDACTED\r\nRegistrant Phone Ext: REDACTED\r\nRegistrant Fax: REDACTED\r\nRegistrant Fax Ext: REDACTED\r\nRegistrant Email: REDACTED\r\nRegistry Admin ID: REDACTED\r\nAdmin Name: REDACTED\r\nAdmin Organization: REDACTED\r\nAdmin Street: REDACTED\r\nAdmin City: REDACTED\r\nAdmin State/Province: REDACTED\r\nAdmin Postal Code: REDACTED\r\nAdmin Country: REDACTED\r\nAdmin Phone: REDACTED\r\nAdmin Phone Ext: REDACTED\r\nAdmin Fax: REDACTED\r\nAdmin Fax Ext: REDACTED\r\nAdmin Email: REDACTED\r\nRegistry Tech ID: REDACTED\r\nTech Name: REDACTED\r\nTech Organization: REDACTED\r\nTech Street: REDACTED\r\nTech City: REDACTED\r\nTech State/Province: REDACTED\r\nTech Postal Code: REDACTED\r\nTech Country: REDACTED\r\nTech Phone: REDACTED\r\nTech Phone Ext: REDACTED\r\nTech Fax: REDACTED\r\nTech Fax Ext: REDACTED\r\nTech Email: REDACTED\r\nName Server: ns1.digitalocean.com\r\nName Server: ns2.digitalocean.com\r\nName Server: ns3.digitalocean.com\r\nDNSSEC: unsigned\r\nURL of the ICANN Whois Inaccuracy Complaint Form: https://icann.org/wicf/\r\n>>> Last update of WHOIS database: 2026-03-12T15:56:32Z <<<\r\n\r\nFor more information on Whois status codes, please visit https://icann.org/epp\r\n\r\nTerms of Use: Access to WHOIS information is provided to assist persons in determining the contents of a domain name registration record in the registry database. The data in this record is provided by Identity Digital or the Registry Operator for informational purposes only, and accuracy is not guaranteed. This service is intended only for query-based access. You agree that you will use this data only for lawful purposes and that, under no circumstances will you use this data to (a) allow, enable, or otherwise support the transmission by e-mail, telephone, or facsimile of mass unsolicited, commercial advertising or solicitations to entities other than the data recipient's own existing customers; or (b) enable high volume, automated, electronic processes that send queries or data to the systems of Registry Operator, a Registrar, or Identity Digital except as reasonably necessary to register domain names or modify existing registrations. When using the Whois service, please consider the following: The Whois service is not a replacement for standard EPP commands to the SRS service. Whois is not considered authoritative for registered domain objects. The Whois service may be scheduled for downtime during production or OT&E maintenance periods. Queries to the Whois services are throttled. If too many queries are received from a single IP address within a specified time, the service will begin to reject further queries for a period of time to prevent disruption of Whois service access. Abuse of the Whois system through data mining is mitigated by detecting and limiting bulk query access from single sources. Where applicable, the presence of a [Non-Public Data] tag indicates that such data is not made publicly available due to applicable data privacy laws or requirements. Should you wish to contact the registrant, please refer to the Whois records available through the registrar URL listed above. Access to non-public data may be provided, upon request, where it can be reasonably confirmed that the requester holds a specific legitimate interest and a proper legal basis for accessing the withheld data. Access to this data provided by Identity Digital can be requested by submitting a request via the form found at https://www.identity.digital/about/policies/whois-layered-access/. The Registrar of Record identified in this output may have an RDDS service that can be queried for additional information on how to contact the Registrant, Admin, or Tech contact of the queried domain name. Identity Digital Inc. and Registry Operator reserve the right to modify these terms at any time. By submitting this query, you agree to abide by this policy.\r\n"}	Domain is active
ahti.space	space	space	ICANN	HTTP 200	198.245.60.54	CA	{"github":["https://github.com/jgoerzen/pygopherd"]}	2026-09-26	C, H2O 2.2.6, HTTP/2, Cloudflare	2026-09-30	TRUE	{"A":["198.245.60.54"],"DS":[{"digest":"01d7d1831addb63b7cf7364e5c9a11f80897d0e2bcc7b456ffccc5153903ab4c","key_tag":2371,"algorithm":13,"digest_type":2}],"NS":["curitiba.ns.porkbun.com","fortaleza.ns.porkbun.com","maceio.ns.porkbun.com","salvador.ns.porkbun.com"],"CAA":[{"tag":"issue","flags":0,"value":"letsencrypt.org"},{"tag":"issuewild","flags":0,"value":"letsencrypt.org"}],"SOA":{"mname":"curitiba.ns.porkbun.com","retry":2400,"rname":"dns.cloudflare.com","expire":604800,"serial":2415557467,"minimum":1800,"refresh":10000},"AAAA":["2607:5300:60:36::1"],"DNSKEY":[{"flags":256,"protocol":3,"algorithm":13,"public_key":"oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XNEZeqCYKD5ar0IRd8KqXXFJkqmVfRvMGPmM1x8fGAa2XhSA=="},{"flags":257,"protocol":3,"algorithm":13,"public_key":"mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+KkxLbxILfDLUT0rAK9iUzy1L53eKGQ=="}]}	0.00000000551697	10,341,388	2026-06-27	RDAP	2018-06-28	2028-06-28	2026-06-23	Porkbun LLC	{"raw_response":{"links":[{"rel":"related","href":"https://cart-before.porkbun.horse/rdap/domain/ahti.space","type":"application/rdap+json","value":"https://rdap.radix.host/rdap/domain/ahti.space"},{"rel":"self","href":"https://rdap.radix.host/rdap/domain/ahti.space","type":"application/rdap+json","value":"https://rdap.radix.host/rdap/domain/ahti.space"}],"events":[{"eventDate":"2018-06-28T00:15:45.000Z","eventActor":"gandi","eventAction":"registration"},{"eventDate":"2028-06-28T23:59:59.000Z","eventAction":"expiration"},{"eventDate":"2026-06-23T10:17:06.477Z","eventAction":"last changed"},{"eventDate":"2026-06-18T10:01:42.736Z","eventAction":"transfer"},{"eventDate":"2026-06-27T04:01:56.433Z","eventAction":"last update of RDAP database"}],"handle":"D71084625-CNIC","status":["client transfer prohibited","client delete prohibited"],"ldhName":"ahti.space","notices":[{"links":[{"rel":"terms-of-service","href":"https://rdap.radix.host/","type":"text/html","value":"https://rdap.radix.host/rdap/domain/ahti.space"}],"title":"Terms of Service","description":["The WHOIS information provided in this page has been redacted","in compliance with ICANN's Temporary Specification for gTLD","Registration Data.","","The data in this record is provided by Tucows Registry for informational","purposes only, and it does not guarantee its accuracy. Tucows Registry is","authoritative for whois information in top-level domains it operates","under contract with the Internet Corporation for Assigned Names and","Numbers. Whois information from other top-level domains is provided by","a third-party under license to Tucows Registry.","","This service is intended only for query-based access. By using this","service, you agree that you will use any data presented only for lawful","purposes and that, under no circumstances will you use (a) data","acquired for the purpose of allowing, enabling, or otherwise supporting","the transmission by e-mail, telephone, facsimile or other","communications mechanism of mass unsolicited, commercial advertising","or solicitations to entities other than your existing customers; or","(b) this service to enable high volume, automated, electronic processes","that send queries or data to the systems of any Registrar or any","Registry except as reasonably necessary to register domain names or","modify existing domain name registrations.","","Tucows Registry reserves the right to modify these terms at any time. By","submitting this query, you agree to abide by this policy. All rights","reserved."]},{"links":[{"rel":"glossary","href":"https://icann.org/epp","type":"text/html","value":"https://rdap.radix.host/rdap/domain/ahti.space"}],"title":"Status Codes","description":["For more information on domain status codes, please visit https://icann.org/epp"]},{"links":[{"rel":"help","href":"https://icann.org/wicf","type":"text/html","value":"https://rdap.radix.host/rdap/domain/ahti.space"}],"title":"RDDS Inaccuracy Complaint Form","description":["URL of the ICANN RDDS Inaccuracy Complaint Form: https://icann.org/wicf"]}],"entities":[{"links":[{"rel":"about","href":"https://rdap.radix.host/rdap/entity/1861","type":"application/rdap+json","value":"https://cart-before.porkbun.horse/rdap/"}],"roles":["registrar"],"events":[{"eventDate":"2026-06-27T04:01:56.433Z","eventAction":"last update of RDAP database"}],"handle":"1861","entities":[{"roles":["abuse"],"events":[{"eventDate":"2026-06-27T04:01:56.433Z","eventAction":"last update of RDAP database"}],"handle":"CO_ce61ec032465ca858953b319b3199c91-RADIX","vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","Porkbun Abuse"],["org",{},"text","Porkbun"],["adr",{"cc":"US"},"text",["","",["","",""],"Sherwood","OR","97140",""]],["tel",{"type":"voice"},"uri","tel:"],["email",{},"text","abuse@porkbun.com"]]],"objectClassName":"entity"}],"publicIds":[{"type":"IANA Registrar ID","identifier":"1861"}],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","Porkbun LLC"],["adr",{"cc":"US"},"text",["","","21370 SW Langer Farms Parkway, Suite 142-429 ","Sherwood","Oregon","97140",""]],["tel",{"type":"voice"},"uri","tel:+1.8557675286"],["email",{},"text","info@porkbun.com"]]],"objectClassName":"entity"}],"redacted":[{"name":{"type":"Registrant Contact"},"method":"removal","prePath":"$.entities[?(@.roles[0]=='registrant')]","pathLang":"jsonpath"}],"secureDNS":{"dsData":[{"digest":"01D7D1831ADDB63B7CF7364E5C9A11F80897D0E2BCC7B456FFCCC5153903AB4C","keyTag":2371,"algorithm":13,"digestType":2}],"delegationSigned":true},"nameservers":[{"events":[{"eventDate":"2026-06-27T04:01:56.433Z","eventAction":"last update of RDAP database"}],"handle":"H33226672-CNIC","status":["associated"],"ldhName":"curitiba.ns.porkbun.com","unicodeName":"curitiba.ns.porkbun.com","objectClassName":"nameserver"},{"events":[{"eventDate":"2026-06-27T04:01:56.433Z","eventAction":"last update of RDAP database"}],"handle":"H33226684-CNIC","status":["associated"],"ldhName":"fortaleza.ns.porkbun.com","unicodeName":"fortaleza.ns.porkbun.com","objectClassName":"nameserver"},{"events":[{"eventDate":"2026-06-27T04:01:56.433Z","eventAction":"last update of RDAP database"}],"handle":"H33226666-CNIC","status":["associated"],"ldhName":"maceio.ns.porkbun.com","unicodeName":"maceio.ns.porkbun.com","objectClassName":"nameserver"},{"events":[{"eventDate":"2026-06-27T04:01:56.433Z","eventAction":"last update of RDAP database"}],"handle":"H33226678-CNIC","status":["associated"],"ldhName":"salvador.ns.porkbun.com","unicodeName":"salvador.ns.porkbun.com","objectClassName":"nameserver"}],"unicodeName":"ahti.space","objectClassName":"domain","rdapConformance":["rdap_level_0","icann_rdap_response_profile_1","icann_rdap_technical_implementation_guide_1","redacted"]}}	Domain is active
wellingtonbuilding.co.nz	co.nz	nz	ICANN	HTTP 200	188.114.96.3	US	{"facebook":["https://facebook.com/wbsbuildingservices"],"instagram":["https://instagram.com/wellington_building_nz"]}	2026-09-22	C, H2O 2.3.0, HSTS, cdnjs, HTTP/2, Sentry, Favicon, Varnish, Bootstrap 5.3.8, Cloudflare	2026-09-25	TRUE	{"A":["188.114.96.3","188.114.97.3"],"NS":["alexandra.ns.cloudflare.com","brett.ns.cloudflare.com"],"SOA":{"mname":"alexandra.ns.cloudflare.com","retry":2400,"rname":"dns.cloudflare.com","expire":604800,"serial":2411829795,"minimum":1800,"refresh":10000},"AAAA":["2a06:98c1:3120::3","2a06:98c1:3121::3"],"HTTPS":[{"params":["alpn=h3,h2","ipv4hint=188.114.96.3,188.114.97.3","ech=AEX+DQBB+gAgACBHo61Y/t95YsvhltSdUujm/ZV8vLg/WjmnWqd8SeZDOAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA=","ipv6hint=2a06:98c1:3120::3,2a06:98c1:3121::3"],"target":"","priority":1}]}	0.00000000544307	11,685,279	2026-10-03	WHOIS	2014-09-07	—	2026-09-01	Key-Systems GmbH	{"raw_response":"Domain Name: wellingtonbuilding.co.nz\r\nRegistrar URL: https://www.key-systems.net\r\nUpdated Date: 2026-09-01T21:58:47Z\r\nCreation Date: 2014-09-07T12:35:33Z\r\nOriginal Created: 2012-06-08T03:49:07Z\r\nRegistrar: Key-Systems GmbH\r\nDomain Status: ok https://icann.org/epp#ok\r\nName Server: alexandra.ns.cloudflare.com\r\nName Server: brett.ns.cloudflare.com\r\nDNSSEC: unsigned\r\nURL of the Domain Name Commission Limited Inaccuracy Complaint Form: https://dnc.org.nz/enquiry-form/\r\n>>> Last update of WHOIS database: 2026-10-03T00:23:55Z <<<\r\n\r\n% Terms of Use\r\n%\r\n% By submitting a WHOIS query you are entering into an agreement with Domain\r\n% Name Commission Ltd on the following terms and conditions, and subject to\r\n% all relevant .nz Policies and procedures as found at https://dnc.org.nz/.\r\n%\r\n% It is prohibited to:\r\n% - Send high volume WHOIS queries with the effect of downloading part of or\r\n% all of the .nz Register or collecting register data or records;\r\n% - Access the .nz Register in bulk through the WHOIS service (ie. where a\r\n% user is able to access WHOIS data other than by sending individual queries\r\n% to the database);\r\n% - Use WHOIS data to allow, enable, or otherwise support mass unsolicited\r\n% commercial advertising, or mass solicitations to registrants or to\r\n% undertake market research via direct mail, electronic mail, SMS, telephone\r\n% or any other medium;\r\n% - Use WHOIS data in contravention of any applicable data and privacy laws,\r\n% including the Unsolicited Electronic Messages Act 2007;\r\n% - Store or compile WHOIS data to build up a secondary register of\r\n% information;\r\n% - Publish historical or non-current versions of WHOIS data; and\r\n% - Publish any WHOIS data in bulk.\r\n%\r\n% Copyright Domain Name Commission Limited (a company wholly-owned by Internet\r\n% New Zealand Incorporated) which may enforce its rights against any person or\r\n% entity that undertakes any prohibited activity without its written\r\n% permission.\r\n%\r\n% The WHOIS service is provided by Internet New Zealand Incorporated.\r\n%\r\n% Additional information may be available at https://www.dnc.org.nz"}	Domain is active
abbeysigns.co.nz	co.nz	nz	ICANN	HTTP 200	112.109.67.241	NZ	{"instagram":["https://instagram.com/abbeysignsnz?igsh=MXRtZ3phMXdpdzJvNQ%3D%3D"]}	2026-09-25	Google Ads AW-941297674 AW-955110660 AW-978263418 AW-988153541 +3, Google Analytics G-6Z4RMTE0S3 G-GQYQ5F3S7L +1, Google Tag Manager GTM-WKDM667, C, H2O 2.3.0, HSTS, cdnjs, HTTP/2, Sentry, Favicon	2026-09-30	TRUE	{"A":["112.109.67.241"],"MX":[{"host":"abbeysigns-co-nz.mail.protection.outlook.com","priority":0}],"NS":["ns1.dynamite.net.nz","ns2.dynamite.net.nz","ns3.dynamite.net.nz","ns4.dynamite.net.nz","ns5.dynamite.net.nz","ns6.dynamite.net.nz"],"SOA":{"mname":"ns1.cloudns.net","retry":1800,"rname":"support.cloudns.net","expire":1209600,"serial":2024071103,"minimum":3600,"refresh":7200},"TXT":["v=spf1 ip4:58.84.227.135 include:spf.protection.outlook.com -all"]}	0.00000000490055	9,527,936	2026-10-02	WHOIS	2001-04-04	—	2026-05-28	Affordable Domains	{"raw_response":"Domain Name: abbeysigns.co.nz\r\nRegistrar URL: https://www.affordabledomains.co.nz\r\nUpdated Date: 2026-05-28T05:03:29Z\r\nCreation Date: 2001-04-04T03:23:18Z\r\nOriginal Created: 2001-04-04T03:23:18Z\r\nRegistrar: Affordable Domains\r\nDomain Status: ok https://icann.org/epp#ok\r\nName Server: ns1.dynamite.net.nz\r\nName Server: ns2.dynamite.net.nz\r\nName Server: ns3.dynamite.net.nz\r\nName Server: ns4.dynamite.net.nz\r\nName Server: ns5.dynamite.net.nz\r\nDNSSEC: unsigned\r\nURL of the Domain Name Commission Limited Inaccuracy Complaint Form: https://dnc.org.nz/enquiry-form/\r\n>>> Last update of WHOIS database: 2026-10-02T07:14:22Z <<<\r\n\r\n% Terms of Use\r\n%\r\n% By submitting a WHOIS query you are entering into an agreement with Domain\r\n% Name Commission Ltd on the following terms and conditions, and subject to\r\n% all relevant .nz Policies and procedures as found at https://dnc.org.nz/.\r\n%\r\n% It is prohibited to:\r\n% - Send high volume WHOIS queries with the effect of downloading part of or\r\n% all of the .nz Register or collecting register data or records;\r\n% - Access the .nz Register in bulk through the WHOIS service (ie. where a\r\n% user is able to access WHOIS data other than by sending individual queries\r\n% to the database);\r\n% - Use WHOIS data to allow, enable, or otherwise support mass unsolicited\r\n% commercial advertising, or mass solicitations to registrants or to\r\n% undertake market research via direct mail, electronic mail, SMS, telephone\r\n% or any other medium;\r\n% - Use WHOIS data in contravention of any applicable data and privacy laws,\r\n% including the Unsolicited Electronic Messages Act 2007;\r\n% - Store or compile WHOIS data to build up a secondary register of\r\n% information;\r\n% - Publish historical or non-current versions of WHOIS data; and\r\n% - Publish any WHOIS data in bulk.\r\n%\r\n% Copyright Domain Name Commission Limited (a company wholly-owned by Internet\r\n% New Zealand Incorporated) which may enforce its rights against any person or\r\n% entity that undertakes any prohibited activity without its written\r\n% permission.\r\n%\r\n% The WHOIS service is provided by Internet New Zealand Incorporated.\r\n%\r\n% Additional information may be available at https://www.dnc.org.nz"}	Domain is active
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Showing 5 of 176 rows · Technologies · Full website tech stack per site: CMS, payments, analytics, frameworks.

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Version distribution

Detected H2O versions across all 176 sites.

Version	Sites	Share
2.3.0	121	89.6%
2.2.5	6	4.4%
2.2.6	4	3.0%
2.1.0	2	1.5%
2.2.3	1	0.7%

About H2O

Nobody ends up running H2O by accident. Shared hosting does not install it, control panels do not offer it and no widely used application ships it as a default, so every detection is an operator who read about the server, weighed it against the usual choices and deliberately put it in front of live traffic. The population is therefore small but unusually deliberate, which is what makes it worth studying.

H2O arrived in 2014, written in C, with an event driven core aimed at cutting latency and at implementing newer revisions of the HTTP protocol early rather than eventually. The design points at who adopts it. Content delivery operators, API front ends, media platforms and engineering teams for whom response time is measured, budgeted and argued about are far more common in the set than ordinary business websites.

The project is MIT licensed, which removes the usual commercial paper trail. There is no vendor to ask how many installations exist, no sales team with a customer list, no licence server counting seats. A crawl of the public web is one of the few ways to observe an install base like this at all, and that gap is exactly what the dataset fills.

As of October 2026 we see H2O on 176 sites. Version strings resolve to 6 distinct releases, and 2.3.0 is the build we record most often. The spread deserves a careful reading, because a server that announces its version is a server whose operator left the banner switched on, and performance minded operators frequently strip it. Version data describes the subset that talks, not the whole population, and the quieter half probably skews newer rather than older.

The site count is a floor for the same family of reasons. A server of this kind is often deployed behind a proxy, inside an appliance or as an internal tier where the outward facing header belongs to something else entirely, and reverse proxies routinely overwrite what a crawler would have seen. Figures on this page describe what is publicly announced, which is a different thing from what is installed, and any serious comparison of server software should say so out loud.

A per domain lookup answers whether one site runs H2O. The export answers the questions that need the whole set: which hosting networks and countries the adopters cluster in, what application stacks sit behind the server, whether the 2.3.0 generation is displacing older builds from one crawl to the next, and which operators moved onto or away from it. Infrastructure vendors, security researchers tracking unpatched builds and anyone benchmarking the Web servers landscape need the list rather than the lookup.

Frequently asked questions

How many websites use H2O?

webatla detects H2O on 176 websites, refreshed daily, each with its domain, DNS, WHOIS, IP, country and ranking.

Can I download the list of websites using H2O?

Yes, as structured JSONL. Grab a free sample first.

What's included for each site, and how fresh is it?

Domain, DNS, RDAP/WHOIS, the full technology stack, IP & country, PageRank and Harmonic, re-detected and re-exported daily.

How do I find the websites using H2O?

Buy the technology dataset, then download the complete list of domains we detect using H2O, re-exported every day.

What else is in the H2O technology data?

Each row places H2O next to the other technology on the same site, plus DNS, WHOIS, IP, country and ranking.

Can I download just the sites using H2O, or the whole database?

Both. Every site running H2O comes in the Technologies dataset, one downloadable file. Or buy All data for the entire database: technologies plus identity, ranking, DNS and RDAP/WHOIS for every domain, combined in one file. Daily fresh export.

How do I download the list of websites using H2O?

Three steps: (1) grab the free 10,000-row sample to inspect the schema, (2) buy the Technologies dataset, (3) download the full list of every domain we detect running H2O as a JSON Lines file. It is re-exported daily, so you can re-download the freshest list any time inside your access window. Each row carries the domain plus DNS, WHOIS, IP, hosting country and rank.