Ko

Download websites using Kotlin

Programming Language · by JetBrains · since 2011 · open source

33 sites +100.00% YoY Latest export · 0 days ago
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About Kotlin

Kotlin is a statically typed, cross-platform programming language developed by JetBrains. It is fully interoperable with Java and runs on the Java Virtual Machine (JVM), but also compiles to JavaScript and native binaries. Google officially endorsed Kotlin as the preferred language for Android development in 2017.

Kotlin combines object-oriented and functional programming features while addressing many of Java's verbosity and null-safety issues. It features concise syntax, strong type inference, coroutines for asynchronous programming, and seamless Java interoperability. Beyond Android, Kotlin is used for server-side development (via frameworks like Ktor and Spring), multiplatform mobile development, and data science. Its rapid adoption has made it one of the most popular JVM languages in the industry.

At a glance

CategoryProgramming Language
VendorJetBrains
LanguageKotlin
LicenseApache 2.0
First release2011-07-22
33 Sites detected
0.0% Of all websites
+100.0% YoY change

Database preview of Kotlin sites

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

webatla-technologies-kotlin-2026-06-13.jsonl.zst · 33 rows · 1 B · 14 columns Daily fresh export
DomainTLD suffixTLDDomain typeHTTP statusIP addressCountry by IPSocial networksTechnologies last data checkedTechnologiesPR valueHarmonic valueDomain creation dateDomain expiration date
barsk.xyzxyzxyzICANNHTTP 20013.49.76.186SE2026-04-28HSTS, Ktor, Kotlin, Keybase0.0000000042560212019-09-242026-09-24
60af87b2c5424aa08f6120aad1d23a21.comcomcomICANNHTTP 200161.35.174.64GB{"instagram":["https://instagram.com/plantchief.platform"]}2026-04-22Bootstrap, Kotlin, Ktor, Nginx, Ubuntu0.0000000041241211,920,6282025-02-142027-02-14
cybersoftsolution.comcomcomICANNHTTP 200188.114.96.3US2026-05-04Ktor, cdnjs, HTTP/3, Kotlin, Swiper, jsDelivr, Bootstrap 5.3.1, Hammer.js, reCAPTCHA, Cloudflare0.0000000041237202024-10-072026-10-07
ffffrozen.comcomcomICANNHTTP 200104.21.22.34US2026-05-09Ktor, HTTP/3, Kotlin, jsDelivr, Bootstrap 5.0.2, Cloudflare0.0000000041237202008-05-132027-05-13
fsryan.comcomcomICANNHTTP 200104.200.16.27US{"github":["https://github.com/fsryan-org/fs-segmented-display","https://github.com/fsryan-org/net/tree/develop/net-graphql","https://github.com/fsryan-org/fsryan-cicd"]}2026-05-10HSTS, Ktor, Nginx, Prism, cdnjs, Kotlin, OpenResty, Cloudflare, Font Awesome 6.5.2, Google Workspace0.0000000030576715,080,7272021-05-012027-05-01
DomainTLD suffixTLDDomain typeHTTP statusIP addressCountry by IPSocial networksTechnologies last data checkedTechnologiesDNS last data checkedDNS StatusDNS recordsPR valueHarmonic valueRDAP/WHOIS last data checkedRDAP/WHOIS methodDomain creation dateDomain expiration dateDomain last changedRegistrarRDAP/WHOIS RecordResponse Status RDAP/WHOIS
barsk.xyzxyzxyzICANNHTTP 20013.49.76.186SE2026-04-28HSTS, Ktor, Kotlin, Keybase2026-06-05TRUE{"A":["13.49.76.186"],"MX":[{"host":"eforward1.registrar-servers.com","priority":10},{"host":"eforward2.registrar-servers.com","priority":10},{"host":"eforward3.registrar-servers.com","priority":10},{"host":"eforward4.registrar-servers.com","priority":15},{"host":"eforward5.registrar-servers.com","priority":20}],"NS":["dns1.registrar-servers.com","dns2.registrar-servers.com"],"SOA":{"mname":"dns1.registrar-servers.com","retry":3600,"rname":"hostmaster.registrar-servers.com","expire":604800,"serial":1780286090,"minimum":3601,"refresh":43200},"TXT":["google-site-verification=Qi1QjkZHrqMcEZFrKQ7M1orV279ZolWzyADbn9-A4-Y","keybase-site-verification=-EEEaPWpNFESktKCdIJCXqDn6wM7btawo0JMzRcg3QQ","v=spf1 include:spf.efwd.registrar-servers.com ~all"]}0.0000000042560212026-02-20RDAP2019-09-242026-09-242025-09-01Namecheap{"raw_response":{"lang":"en","links":[{"rel":"self","href":"https://rdap.centralnic.com/xyz/domain/barsk.xyz","type":"application/rdap+json","title":"Authoritative URL for this resource","value":"https://rdap.centralnic.com/xyz/domain/barsk.xyz"},{"rel":"help","href":"https://whois.nic.xyz/rdap","type":"text/html","title":"RDAP Service Help","value":"https://rdap.centralnic.com/xyz/domain/barsk.xyz"},{"rel":"related","href":"https://rdap.namecheap.com/domain/barsk.xyz","type":"application/rdap+json","title":"URL of Sponsoring Registrar's RDAP Record","value":"https://rdap.centralnic.com/xyz/domain/barsk.xyz"}],"events":[{"eventDate":"2019-09-24T19:53:06.0Z","eventAction":"registration"},{"eventDate":"2026-09-24T23:59:59.0Z","eventAction":"expiration"},{"eventDate":"2026-02-20T05:37:27.0Z","eventAction":"last update of RDAP database"},{"eventDate":"2025-09-01T12:30:18.0Z","eventAction":"last changed"}],"handle":"D131034486-CNIC","port43":"whois.nic.xyz","status":["client transfer prohibited"],"ldhName":"barsk.xyz","notices":[{"links":[{"rel":"glossary","href":"https://icann.org/epp","title":"More information on domain status codes","value":"https://rdap.centralnic.com/xyz/domain/barsk.xyz"}],"title":"Status Codes","description":["For more information on domain status codes, please visit https://icann.org/epp"]},{"links":[{"rel":"terms-of-service","href":"https://www.centralnicregistry.com/","title":"Terms of Use","value":"https://rdap.centralnic.com/xyz/domain/barsk.xyz"}],"title":"Terms of Use","description":["For more information on Whois status codes, please visit https://icann.org/epp","",">>> IMPORTANT INFORMATION ABOUT THE DEPLOYMENT OF RDAP: please visit","https://www.centralnicregistry.com/support/information/rdap <<<","","The registration data available in this service is limited. Additional","data may be available at https://lookup.icann.org","","The Whois and RDAP services are provided by CentralNic, and contain","information pertaining to Internet domain names registered by our","our customers. By using this service you are agreeing (1) not to use any","information presented here for any purpose other than determining","ownership of domain names, (2) not to store or reproduce this data in","any way, (3) not to use any high-volume, automated, electronic processes","to obtain data from this service. Abuse of this service is monitored and","actions in contravention of these terms will result in being permanently","blacklisted. All data is (c) CentralNic Ltd (https://www.centralnicregistry.com)","","Access to the Whois and RDAP services is rate limited. For more","information, visit https://centralnicregistry.com/policies/whois-guidance."]},{"links":[{"rel":"help","href":"https://icann.org/wicf","title":"ICANN RDDS Inaccuracy Complaint Form","value":"https://rdap.centralnic.com/xyz/domain/barsk.xyz"}],"title":"RDDS Inaccuracy Complaint Form","description":["URL of the ICANN RDDS Inaccuracy Complaint Form: https://icann.org/wicf"]}],"entities":[{"links":[{"rel":"self","href":"https://rdap.centralnic.com/xyz/entity/1068","type":"application/rdap+json","title":"Authoritative URL for this resource","value":"https://rdap.centralnic.com/xyz/domain/barsk.xyz"},{"rel":"about","href":"https://namecheap.com","title":"Registrar's Website","value":"https://rdap.namecheap.com/"}],"roles":["registrar"],"handle":"1068","entities":[{"roles":["abuse"],"handle":"not applicable","vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","Abuse Contact"],["org",{},"text","Namecheap"],["email",{},"text","abuse@namecheap.com"],["tel",{"type":"voice"},"uri","tel:+1.9854014545"]]],"objectClassName":"entity"}],"publicIds":[{"type":"IANA Registrar ID","identifier":"1068"}],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","Namecheap"]]],"objectClassName":"entity"}],"secureDNS":{"dsData":[{"digest":"3b9753814d8f2d0ae5e9e0e973e60a0624e5db62","keyTag":53608,"algorithm":13,"digestType":1}],"maxSigLife":0,"delegationSigned":true},"nameservers":[{"links":[{"rel":"self","href":"https://rdap.centralnic.com/xyz/nameserver/dns1.registrar-servers.com","type":"application/rdap+json","title":"Authoritative URL for this resource","value":"https://rdap.centralnic.com/xyz/domain/barsk.xyz"}],"handle":"H46040-CNIC","ldhName":"dns1.registrar-servers.com","objectClassName":"nameserver"},{"links":[{"rel":"self","href":"https://rdap.centralnic.com/xyz/nameserver/dns2.registrar-servers.com","type":"application/rdap+json","title":"Authoritative URL for this resource","value":"https://rdap.centralnic.com/xyz/domain/barsk.xyz"}],"handle":"H46041-CNIC","ldhName":"dns2.registrar-servers.com","objectClassName":"nameserver"}],"objectClassName":"domain","rdapConformance":["icann_rdap_response_profile_1","icann_rdap_technical_implementation_guide_1","rdap_level_0"]},"related_response":{"lang":"en","links":[{"rel":"self","href":"https://rdap.namecheap.com/domain/barsk.xyz","type":"application/rdap+json","value":"https://rdap.namecheap.com/domain/barsk.xyz"}],"events":[{"eventDate":"2026-02-20T05:37:31Z","eventAction":"last update of RDAP database"},{"eventDate":"2019-09-24T19:53:06Z","eventAction":"registration"},{"eventDate":"2026-09-24T23:59:59Z","eventAction":"registrar expiration"},{"eventDate":"2025-08-25T06:07:23Z","eventAction":"last changed"}],"port43":"whois.namecheap.com","status":["client transfer prohibited"],"ldhName":"barsk.xyz","notices":[{"links":[{"rel":"terms-of-service","href":"https://www.namecheap.com/legal/domains/rdap-tos/","type":"text/html","value":"https://rdap.namecheap.com/domain/barsk.xyz"}],"title":"RDAP Terms of Service","description":["By querying Namecheap’s RDAP Domain Database, you agree to comply with Namecheap’s RDAP Terms of Service, including but not limited to the terms herein, and you acknowledge and agree that your information will be used in accordance with Namecheap Privacy Policy (https://www.namecheap.com/legal/general/privacy-policy/), including that Namecheap may retain certain details about queries to our RDAP Domain Database for the purposes of detecting and preventing misuse. If you do not agree to any of these terms, do not access or use ,the RDAP Domain Database.","Although Namecheap believes the data to be reliable, you agree and acknowledge that any information provided is 'as is' without any guarantee of accuracy.","You further agree that you will:","1) Not misuse the RDAP Domain Database. It is intended solely for query-based access and should not be used for or relied upon for any other purpose.","2) Not use the RDAP Domain Database to allow, enable, or otherwise support the transmission of unsolicited, commercial advertising or solicitations.","3) Not access the RDAP Domain Database through the use of high volume, automated electronic processes that send queries or data to the systems of Namecheap, any other ICANN-accredited registrar, or any registry operator.","4) Not compile, repackage, disseminate, or otherwise use the information contained in the RDAP Domain Database in its entirety, or in any substantial portion, without our prior written permission.","5) You will only use the information contained in the RDAP Domain Database for lawful purposes.","We reserve the right to restrict or deny your access to the RDAP Domain Database if we suspect that you have failed to comply with these terms.","We reserve the right to modify this agreement at any time."]},{"links":[{"rel":"glossary","href":"https://icann.org/epp","type":"text/html","value":"https://rdap.namecheap.com/domain/barsk.xyz"}],"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.namecheap.com/domain/barsk.xyz"}],"title":"RDDS Inaccuracy Complaint Form","description":["URL of the ICANN RDDS Inaccuracy Complaint Form: https://icann.org/wicf"]}],"entities":[{"links":[{"rel":"about","href":"https://www.namecheap.com/","value":"https://rdap.namecheap.com/"}],"roles":["registrar"],"handle":"1068","entities":[{"roles":["abuse"],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","NAMECHEAP INC"],["tel",{"type":["voice"]},"uri","tel:+1.9854014545"],["email",{},"text","abuse@namecheap.com"]]],"objectClassName":"entity"}],"publicIds":[{"type":"IANA Registrar ID","identifier":"1068"}],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","NAMECHEAP INC"],["tel",{"type":["voice"]},"uri","tel:+1.6613102107"],["email",{},"text","support@namecheap.com"]]],"objectClassName":"entity"},{"roles":["registrant"],"handle":"9b8e952ee62d4f2a78b208d7406e5f33-Namech","vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text",""],["org",{},"text","Privacy service provided by Withheld for Privacy ehf"],["adr",{"cc":"IS"},"text",["","","Kalkofnsvegur 2","Reykjavik","Capital Region","101",""]],["tel",{"type":["voice"]},"uri","tel:+354.4212434"],["email",{},"text","ddec0aa7f5de48a5b7438c0af31e8523.protect@withheldforprivacy.com"]]],"objectClassName":"entity"},{"roles":["technical"],"handle":"2f112b2ab7c94191876508d7412629a3-Namech","vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text",""],["org",{},"text","Privacy service provided by Withheld for Privacy ehf"],["adr",{"cc":"IS"},"text",["","","Kalkofnsvegur 2","Reykjavik","Capital Region","101",""]],["tel",{"type":["voice"]},"uri","tel:+354.4212434"],["email",{},"text","ddec0aa7f5de48a5b7438c0af31e8523.protect@withheldforprivacy.com"]]],"objectClassName":"entity"}],"redacted":[{"name":{"type":"Registry Domain ID"},"method":"removal"},{"name":{"type":"Registrant Name"},"method":"emptyValue","postPath":"$.entities[?(@.roles[0]=='registrant')].vcardArray[1][?(@[0]=='fn')][3]"},{"name":{"type":"Tech Name"},"method":"emptyValue","postPath":"$.entities[?(@.roles[0]=='technical')].vcardArray[1][?(@[0]=='fn')][3]"}],"secureDNS":{"dsData":[{"digest":"3b9753814d8f2d0ae5e9e0e973e60a0624e5db62","keyTag":53608,"algorithm":13,"digestType":1}],"zoneSigned":true,"delegationSigned":true},"nameservers":[{"ldhName":"dns1.registrar-servers.com","unicodeName":"dns1.registrar-servers.com","objectClassName":"nameserver"},{"ldhName":"dns2.registrar-servers.com","unicodeName":"dns2.registrar-servers.com","objectClassName":"nameserver"}],"unicodeName":"barsk.xyz","objectClassName":"domain","rdapConformance":["rdap_level_0","icann_rdap_response_profile_1","icann_rdap_technical_implementation_guide_1","redacted"]}}Domain is active
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cybersoftsolution.comcomcomICANNHTTP 200188.114.96.3US2026-05-04Ktor, cdnjs, HTTP/3, Kotlin, Swiper, jsDelivr, Bootstrap 5.3.1, Hammer.js, reCAPTCHA, Cloudflare2026-06-11TRUE{"A":["188.114.96.3","188.114.97.3"],"NS":["felicity.ns.cloudflare.com","janet.ns.cloudflare.com"],"SOA":{"mname":"felicity.ns.cloudflare.com","retry":2400,"rname":"dns.cloudflare.com","expire":604800,"serial":2406304338,"minimum":1800,"refresh":10000},"TXT":["google-site-verification=_N7yeYikLXy0XRjbLS-tS1zgwhlWb0CejzN5Xd28rws","v=spf1 include:_spf.mailersend.net -all"],"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+DQBB0wAgACCV40pfXbS6NiNo1OPkeJELNX6JR47f/wmesmreGR1gHAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA=","ipv6hint=2a06:98c1:3120::3,2a06:98c1:3121::3"],"target":"","priority":1}]}0.0000000041237202025-09-13RDAP2024-10-072026-10-072025-09-13Cloudflare, Inc.{"raw_response":{"links":[{"rel":"self","href":"https://rdap.verisign.com/com/v1/domain/CYBERSOFTSOLUTION.COM","type":"application/rdap+json","value":"https://rdap.verisign.com/com/v1/domain/CYBERSOFTSOLUTION.COM"},{"rel":"related","href":"https://rdap.cloudflare.com/rdap/v1/domain/CYBERSOFTSOLUTION.COM","type":"application/rdap+json","value":"https://rdap.cloudflare.com/rdap/v1/domain/CYBERSOFTSOLUTION.COM"}],"events":[{"eventDate":"2024-10-07T01:25:04Z","eventAction":"registration"},{"eventDate":"2026-10-07T01:25:04Z","eventAction":"expiration"},{"eventDate":"2025-08-02T00:49:48Z","eventAction":"last changed"},{"eventDate":"2025-09-13T04:35:40Z","eventAction":"last update of RDAP database"}],"handle":"2923213138_DOMAIN_COM-VRSN","status":["client transfer prohibited"],"ldhName":"CYBERSOFTSOLUTION.COM","notices":[{"links":[{"rel":"terms-of-service","href":"https://www.verisign.com/domain-names/registration-data-access-protocol/terms-service/index.xhtml","type":"text/html","value":"https://rdap.verisign.com/com/v1/domain/cybersoftsolution.com"}],"title":"Terms of Service","description":["Service subject to Terms of Use."]},{"links":[{"href":"https://icann.org/epp","type":"text/html"}],"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.verisign.com/com/v1/domain/cybersoftsolution.com"}],"title":"RDDS Inaccuracy Complaint Form","description":["URL of the ICANN RDDS Inaccuracy Complaint Form: https://icann.org/wicf"]}],"entities":[{"links":[{"rel":"about","href":"http://www.cloudflare.com","type":"text/html","value":"https://rdap.cloudflare.com/rdap/v1/"}],"roles":["registrar"],"handle":"1910","entities":[{"roles":["abuse"],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text",""],["tel",{"type":"voice"},"uri","tel:+1.6503198930"],["email",{},"text","registrar-abuse@cloudflare.com"]]],"objectClassName":"entity"}],"publicIds":[{"type":"IANA Registrar ID","identifier":"1910"}],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","Cloudflare, Inc."]]],"objectClassName":"entity"}],"secureDNS":{"delegationSigned":false},"nameservers":[{"ldhName":"FELICITY.NS.CLOUDFLARE.COM","objectClassName":"nameserver"},{"ldhName":"JANET.NS.CLOUDFLARE.COM","objectClassName":"nameserver"}],"objectClassName":"domain","rdapConformance":["rdap_level_0","icann_rdap_technical_implementation_guide_1","icann_rdap_response_profile_1"]}}Domain is active
ffffrozen.comcomcomICANNHTTP 200104.21.22.34US2026-05-09Ktor, HTTP/3, Kotlin, jsDelivr, Bootstrap 5.0.2, Cloudflare2026-06-03TRUE{"A":["104.21.22.34","172.67.202.58"],"MX":[{"host":"inbound-smtp.cp.blacknight.com","priority":10}],"NS":["barbara.ns.cloudflare.com","ivan.ns.cloudflare.com"],"SOA":{"mname":"barbara.ns.cloudflare.com","retry":2400,"rname":"dns.cloudflare.com","expire":604800,"serial":2405353178,"minimum":1800,"refresh":10000},"TXT":["v=spf1 a include:spf.blacknight.ie ~all"],"AAAA":["2606:4700:3031::6815:1622","2606:4700:3034::ac43:ca3a"]}0.0000000041237202026-05-12RDAP2008-05-132027-05-132026-04-27Cloudflare, Inc.{"raw_response":{"links":[{"rel":"self","href":"https://rdap.verisign.com/com/v1/domain/FFFFROZEN.COM","type":"application/rdap+json","value":"https://rdap.verisign.com/com/v1/domain/FFFFROZEN.COM"},{"rel":"related","href":"https://rdap.cloudflare.com/rdap/v1/domain/FFFFROZEN.COM","type":"application/rdap+json","value":"https://rdap.cloudflare.com/rdap/v1/domain/FFFFROZEN.COM"}],"events":[{"eventDate":"2008-05-13T08:30:55Z","eventAction":"registration"},{"eventDate":"2027-05-13T08:30:55Z","eventAction":"expiration"},{"eventDate":"2026-04-27T07:51:29Z","eventAction":"last changed"},{"eventDate":"2026-05-12T03:06:30Z","eventAction":"last update of RDAP database"}],"handle":"1471102514_DOMAIN_COM-VRSN","status":["client transfer prohibited"],"ldhName":"FFFFROZEN.COM","notices":[{"links":[{"rel":"terms-of-service","href":"https://www.verisign.com/domain-names/registration-data-access-protocol/terms-service/index.xhtml","type":"text/html","value":"https://rdap.verisign.com/com/v1/domain/ffffrozen.com"}],"title":"Terms of Service","description":["Service subject to Terms of Use."]},{"links":[{"href":"https://icann.org/epp","type":"text/html"}],"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.verisign.com/com/v1/domain/ffffrozen.com"}],"title":"RDDS Inaccuracy Complaint Form","description":["URL of the ICANN RDDS Inaccuracy Complaint Form: https://icann.org/wicf"]}],"entities":[{"links":[{"rel":"about","href":"http://www.cloudflare.com","type":"text/html","value":"https://rdap.cloudflare.com/rdap/v1/"}],"roles":["registrar"],"handle":"1910","entities":[{"roles":["abuse"],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text",""],["tel",{"type":"voice"},"uri","tel:+1.6503198930"],["email",{},"text","registrar-abuse@cloudflare.com"]]],"objectClassName":"entity"}],"publicIds":[{"type":"IANA Registrar ID","identifier":"1910"}],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","Cloudflare, Inc."]]],"objectClassName":"entity"}],"secureDNS":{"delegationSigned":false},"nameservers":[{"ldhName":"BARBARA.NS.CLOUDFLARE.COM","objectClassName":"nameserver"},{"ldhName":"IVAN.NS.CLOUDFLARE.COM","objectClassName":"nameserver"}],"objectClassName":"domain","rdapConformance":["rdap_level_0","icann_rdap_technical_implementation_guide_1","icann_rdap_response_profile_1"]}}Domain is active
fsryan.comcomcomICANNHTTP 200104.200.16.27US{"github":["https://github.com/fsryan-org/fs-segmented-display","https://github.com/fsryan-org/net/tree/develop/net-graphql","https://github.com/fsryan-org/fsryan-cicd"]}2026-05-10HSTS, Ktor, Nginx, Prism, cdnjs, Kotlin, OpenResty, Cloudflare, Font Awesome 6.5.2, Google Workspace2026-06-05TRUE{"A":["104.200.16.27"],"MX":[{"host":"alt1.aspmx.l.google.com","priority":5},{"host":"alt2.aspmx.l.google.com","priority":5},{"host":"alt3.aspmx.l.google.com","priority":10},{"host":"alt4.aspmx.l.google.com","priority":10},{"host":"aspmx.l.google.com","priority":1},{"host":"mail.fsryan.com","priority":10}],"NS":["ns1.linode.com","ns2.linode.com","ns3.linode.com","ns4.linode.com","ns5.linode.com"],"SOA":{"mname":"ns1.linode.com","retry":14400,"rname":"ryan.fsryan.com","expire":1209600,"serial":2021000056,"minimum":86400,"refresh":14400},"TXT":["v=spf1 include:_spf.google.com ~all"],"AAAA":["2600:3c00::2000:b8ff:fe77:f21b"]}0.0000000030576715,080,7272026-04-22RDAP2021-05-012027-05-012026-04-01NameCheap, Inc.{"raw_response":{"links":[{"rel":"self","href":"https://rdap.verisign.com/com/v1/domain/FSRYAN.COM","type":"application/rdap+json","value":"https://rdap.verisign.com/com/v1/domain/FSRYAN.COM"},{"rel":"related","href":"https://rdap.namecheap.com/domain/FSRYAN.COM","type":"application/rdap+json","value":"https://rdap.namecheap.com/domain/FSRYAN.COM"}],"events":[{"eventDate":"2021-05-01T01:36:34Z","eventAction":"registration"},{"eventDate":"2027-05-01T01:36:34Z","eventAction":"expiration"},{"eventDate":"2026-04-01T07:22:57Z","eventAction":"last changed"},{"eventDate":"2026-04-22T05:38:58Z","eventAction":"last update of RDAP database"}],"handle":"2608960816_DOMAIN_COM-VRSN","status":["client transfer prohibited"],"ldhName":"FSRYAN.COM","notices":[{"links":[{"rel":"terms-of-service","href":"https://www.verisign.com/domain-names/registration-data-access-protocol/terms-service/index.xhtml","type":"text/html","value":"https://rdap.verisign.com/com/v1/domain/fsryan.com"}],"title":"Terms of Service","description":["Service subject to Terms of Use."]},{"links":[{"href":"https://icann.org/epp","type":"text/html"}],"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.verisign.com/com/v1/domain/fsryan.com"}],"title":"RDDS Inaccuracy Complaint Form","description":["URL of the ICANN RDDS Inaccuracy Complaint Form: https://icann.org/wicf"]}],"entities":[{"links":[{"rel":"about","href":"http://www.namecheap.com","type":"text/html","value":"https://rdap.namecheap.com/"}],"roles":["registrar"],"handle":"1068","entities":[{"roles":["abuse"],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text",""],["tel",{"type":"voice"},"uri","tel:+1.6613102107"],["email",{},"text","abuse@namecheap.com"]]],"objectClassName":"entity"}],"publicIds":[{"type":"IANA Registrar ID","identifier":"1068"}],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","NameCheap, Inc."]]],"objectClassName":"entity"}],"secureDNS":{"delegationSigned":false},"nameservers":[{"ldhName":"NS1.LINODE.COM","objectClassName":"nameserver"},{"ldhName":"NS2.LINODE.COM","objectClassName":"nameserver"},{"ldhName":"NS3.LINODE.COM","objectClassName":"nameserver"},{"ldhName":"NS4.LINODE.COM","objectClassName":"nameserver"},{"ldhName":"NS5.LINODE.COM","objectClassName":"nameserver"}],"objectClassName":"domain","rdapConformance":["rdap_level_0","icann_rdap_technical_implementation_guide_1","icann_rdap_response_profile_1"]}}Domain is active
Showing 5 of 33 rows · Technologies · Full website tech stack per site — CMS, payments, analytics, frameworks.

+ 4 datasets don't carry the Technologies column.

The Kotlin dataset

Every site we've detected as running Kotlin — with version, hosting, country, TLD and traffic rank.

Kotlin lives inside 2 datasets

Kotlin detection is part of Technologies (€159/mo) and All data (€599/mo). Buy either to filter the full 33-site list — or grab a free preview first.

See datasets ↓ Download free preview (20 rows)

Your Kotlin downloads

The datasets you own, sliced to Kotlin. Every button streams the latest daily export directly.

Format: JSONL (zstd) Latest export: 0 days ago

API, columns & recipes → /account/api

Frequently asked questions

How many websites use Kotlin?

webatla detects Kotlin on 33 websites, refreshed daily — each with its domain, DNS, WHOIS, IP, country and ranking.

Can I download the list of websites using Kotlin?

Yes — as structured JSONL. Pay once for one month, no subscription; 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.