Download websites that use Uvicorn
17,152 live sites using Uvicorn right now
Server Software · since 2017 · open source
About Uvicorn
webatla tracks 17,152 live websites using Uvicorn — 0.0% of every site we index. Download the full list of websites that using Uvicorn technology as a daily JSONL export — every record includes the domain plus DNS, WHOIS, IP address, hosting country and global rank.
Uvicorn is a lightning-fast ASGI (Asynchronous Server Gateway Interface) web server implementation for Python, built on top of uvloop and httptools. It is designed to serve Python web applications and APIs built with async frameworks such as FastAPI and Starlette, providing high concurrency and throughput compared to traditional WSGI servers like Gunicorn.
Uvicorn has become the de facto standard production server for FastAPI applications and is widely used in the Python web development ecosystem for building high-performance REST APIs and microservices. It supports HTTP/1.1 and WebSockets, and can be run standalone or behind a process manager like Gunicorn with a Uvicorn worker class.
Database preview of Uvicorn sites
Uvicorn detection is a value inside the Technologies column. Two datasets carry it — switch between them to compare what's included.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| dmm.com | com | com | ICANN | HTTP 200 | 13.248.196.236 | US | {"youtube":["https://youtube.com/user/dmmofficialchannel"],"facebook":["https://facebook.com/DMMcom"],"instagram":["https://instagram.com/dmm.com_official"],"x-twitter":["https://twitter.com/DMM_com"]} | 2026-05-06 | Imgix, Python, Uvicorn, Sendgrid, Google Ads, Open Graph, Google Optimize, Google Analytics, Google Workspace, Amazon CloudFront | 0.00000596646 | 17,719,628 | 1995-06-28 | 2028-06-27 |
| nfb.ca | ca | ca | ICANN | HTTP 200 | 35.182.164.155 | CA | {"tiktok":["https://tiktok.com/@nfb_onf"],"youtube":["http://youtube.com/nfb"],"facebook":["http://facebook.com/nfb.ca"],"linkedin":["https://linkedin.com/company/national-film-board-of-canada"],"instagram":["https://instagram.com/onf_nfb"],"x-twitter":["http://twitter.com/thenfb"]} | 2026-07-02 | PWA, RSS, Python, Mailgun, Uvicorn, Google Ads, Open Graph, Reddit Ads, Microsoft 365, Facebook Pixel | 0.00000114517 | 17,510,276 | 2000-11-06 | 2031-08-25 |
| polarsteps.com | com | com | ICANN | HTTP 200 | 52.16.161.12 | IE | {"reddit":["https://reddit.com/r/Polarsteps"],"tiktok":["https://tiktok.com/@polarsteps"],"instagram":["https://instagram.com/polarsteps"]} | 2026-07-04 | HSTS, React, HTTP/2, Python, Uvicorn, Zendesk, Mixpanel, Atlassian, CookieYes, Detectify | 0.000000662023 | 17,638,640 | 2010-06-04 | 2027-06-04 |
| onf.ca | ca | ca | ICANN | HTTP 200 | 35.182.164.155 | CA | {"tiktok":["https://tiktok.com/@nfb_onf"],"youtube":["https://youtube.com/onf"],"facebook":["https://facebook.com/onf.ca"],"linkedin":["https://linkedin.com/company/national-film-board-of-canada"],"instagram":["https://instagram.com/onf_nfb"],"x-twitter":["https://twitter.com/onf"]} | 2026-07-03 | PWA, RSS, Miro, Python, Mailgun, Uvicorn, Google Ads, Open Graph, Reddit Ads, Microsoft 365 | 0.000000548905 | 17,295,178 | 2000-11-06 | 2031-08-25 |
| pomodoro-tracker.com | com | com | ICANN | HTTP 200 | 178.212.13.133 | RU | {"github":["https://github.com/klen/pomodoro-tracker-locales"]} | 2026-07-04 | PWA, HSTS, HTTP/2, Python, Uvicorn, Cloudflare, Open Graph, Google AdSense, Google Site Verification, Cloudflare Browser Insights | 0.000000350416 | 14,304,924 | 2015-08-23 | 2028-08-23 |
| … | … | … | … | … | … | … | … | … | … | … | … | … | … |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| dmm.com | com | com | ICANN | HTTP 200 | 13.248.196.236 | US | {"youtube":["https://youtube.com/user/dmmofficialchannel"],"facebook":["https://facebook.com/DMMcom"],"instagram":["https://instagram.com/dmm.com_official"],"x-twitter":["https://twitter.com/DMM_com"]} | 2026-05-06 | Imgix, Python, Uvicorn, Sendgrid, Google Ads, Open Graph, Google Optimize, Google Analytics, Google Workspace, Amazon CloudFront | 2026-07-23 | TRUE | {"A":["13.248.196.236"],"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}],"NS":["a1-198.akam.net","a12-67.akam.net","a13-64.akam.net","a14-65.akam.net","a18-66.akam.net","a9-67.akam.net","ns1.p201.dns.oraclecloud.net","ns2.p201.dns.oraclecloud.net","ns3.p201.dns.oraclecloud.net","ns4.p201.dns.oraclecloud.net"],"SOA":{"mname":"ns1.p201.dns.oraclecloud.net","retry":600,"rname":"hostmaster.dmm.com","expire":604800,"serial":2019078167,"minimum":1800,"refresh":3600},"TXT":["ZOOM_verify_mJHwhUY4QF-U-NB-ikSc5A","_globalsign-domain-verification=4MUwz3NxyQcnphO6_X5Yqpm6jBZY8hyXdVGokb2e6h","_globalsign-domain-verification=SulehIMiyKh4Ss26vaXAzW-39ZDUig-6TCS8iAzIyK","_globalsign-domain-verification=TxCH5zDhxQVjx0lcDjq1WOGSB7p2uWhl7kVd-iZqVs","_globalsign-domain-verification=pGu2ryWAxcIl_H6w-3_HDoTQNoBFy4-2Uncdms-9Eq","_globalsign-domain-verification=vpKvKfRjpoIXiHja7fkpgnA-wlSVx3mwgGOS6ZC_cy","amazonses:7xV/3qQeRikPxbKloMh2hRa3uWq+MyESTjdJ6DRlK6o=","apple-domain-verification=JzESpLTWhOoQjqoS","atlassian-domain-verification=d6HZ/IOb1pozzpcOyoOf32CCayQFZkxkAltwl5ukawqBQwQ1trIG5kIlQhgg894M","facebook-domain-verification=0ych9cqn7we1lwdqektbo0n4aqxqot","facebook-domain-verification=m7np1o8hf5gdfxa3o1ruw7eeud7rzf","google-site-verification=1fwBYQ_8LTftf3tiJTMz_pdEtl_bZG-Pz9LPa0qZvro","google-site-verification=2Xwutjakkm-_2w-_Tta4St4-MbvojQLaqKYuOiqeaN4","google-site-verification=NXDlg2Tf4_6_G3RThxQup-jt0-y0Jlx27TY1qjjopwk","google-site-verification=UQBWBWOATeAEa2vr5GEytHpNQ4findwtEv84kPm3q7Q","google-site-verification=cgYiis9ZD2SE9rhjUe4Ilbd_UOkzR_Fw4rVAqoydrkw","google-site-verification=hpaRS16ikkHRBRRv01Z5RhlwGSel0SZYVN6J3WvCW1Q","google-site-verification=iRjnQq5pXckFHyLwZZSHEuZYhycubSaNt9fhx3Re_bI","google-site-verification=t3iimK5QqyP35ZUBBRXn9dzOom0JoTlPCXbAuSoUvH0","google-site-verification=uU8ZqUH0Zgc2xwP4NO76QW7r741yEk8_RIariQgkLmY","sending_domain1027913=3ed3923536b779d85064b5914e56b577e6a8806a8e72e7c706c0c9303e62e894","v=spf1 include:_spf1.dmm.com include:u6720083.wl084.sendgrid.net include:_spf.google.com include:spf.maildealer.jp include:mktomail.com -all","vmware-cloud-verification-d9575fd8-804a-4fe5-b7e1-00c41cea759a"]} | 0.00000596646 | 17,719,628 | 2025-06-17 | RDAP | 1995-06-28 | 2028-06-27 | 2025-06-17 | 1API GmbH | {"raw_response":{"links":[{"rel":"self","href":"https://rdap.verisign.com/com/v1/domain/DMM.COM","type":"application/rdap+json","value":"https://rdap.verisign.com/com/v1/domain/DMM.COM"},{"rel":"related","href":"https://rdap.1api.net/domain/DMM.COM","type":"application/rdap+json","value":"https://rdap.1api.net/domain/DMM.COM"}],"events":[{"eventDate":"1995-06-28T04:00:00Z","eventAction":"registration"},{"eventDate":"2028-06-27T04:00:00Z","eventAction":"expiration"},{"eventDate":"2024-11-27T05:41:44Z","eventAction":"last changed"},{"eventDate":"2025-06-17T05:22:11Z","eventAction":"last update of RDAP database"}],"handle":"29322_DOMAIN_COM-VRSN","status":["client transfer prohibited"],"ldhName":"DMM.COM","notices":[{"links":[{"href":"https://www.verisign.com/domain-names/registration-data-access-protocol/terms-service/index.xhtml","type":"text/html"}],"title":"Terms of Use","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":[{"href":"https://icann.org/wicf","type":"text/html"}],"title":"RDDS Inaccuracy Complaint Form","description":["URL of the ICANN RDDS Inaccuracy Complaint Form: https://icann.org/wicf"]}],"entities":[{"roles":["registrar"],"handle":"1387","entities":[{"roles":["abuse"],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text",""],["tel",{"type":"voice"},"uri","tel:+49.68949396850"],["email",{},"text","abuse@1api.net"]]],"objectClassName":"entity"}],"publicIds":[{"type":"IANA Registrar ID","identifier":"1387"}],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","1API GmbH"]]],"objectClassName":"entity"}],"secureDNS":{"delegationSigned":false},"nameservers":[{"ldhName":"A1-198.AKAM.NET","objectClassName":"nameserver"},{"ldhName":"A12-67.AKAM.NET","objectClassName":"nameserver"},{"ldhName":"A13-64.AKAM.NET","objectClassName":"nameserver"},{"ldhName":"A14-65.AKAM.NET","objectClassName":"nameserver"},{"ldhName":"A18-66.AKAM.NET","objectClassName":"nameserver"},{"ldhName":"A9-67.AKAM.NET","objectClassName":"nameserver"},{"ldhName":"NS1.P201.DNS.ORACLECLOUD.NET","objectClassName":"nameserver"},{"ldhName":"NS2.P201.DNS.ORACLECLOUD.NET","objectClassName":"nameserver"},{"ldhName":"NS3.P201.DNS.ORACLECLOUD.NET","objectClassName":"nameserver"},{"ldhName":"NS4.P201.DNS.ORACLECLOUD.NET","objectClassName":"nameserver"}],"objectClassName":"domain","rdapConformance":["rdap_level_0","icann_rdap_technical_implementation_guide_0","icann_rdap_response_profile_0"]}} | Domain is active |
| nfb.ca | ca | ca | ICANN | HTTP 200 | 35.182.164.155 | CA | {"tiktok":["https://tiktok.com/@nfb_onf"],"youtube":["http://youtube.com/nfb"],"facebook":["http://facebook.com/nfb.ca"],"linkedin":["https://linkedin.com/company/national-film-board-of-canada"],"instagram":["https://instagram.com/onf_nfb"],"x-twitter":["http://twitter.com/thenfb"]} | 2026-07-02 | PWA, RSS, Python, Mailgun, Uvicorn, Google Ads, Open Graph, Reddit Ads, Microsoft 365, Facebook Pixel | 2026-07-17 | TRUE | {"A":["35.182.164.155"],"DS":[{"digest":"323a5dd224634e5d4315f10b783bd9383d1f344c70cff7b398689b49e923baad","key_tag":26784,"algorithm":13,"digest_type":2},{"digest":"10e490f8c87fc9df75035046716e077965518265f140bdc2811312044fd4b269","key_tag":46290,"algorithm":7,"digest_type":2},{"digest":"2e627ddb59da5200da77d5d047055ec13dcf9db8","key_tag":46290,"algorithm":7,"digest_type":1}],"MX":[{"host":"nfb-ca.mail.protection.outlook.com","priority":10}],"NS":["NS3.nfb.ca","NS4.nfb.ca","NS5.nfb.ca"],"SOA":{"mname":"NS4.nfb.ca","retry":3600,"rname":"POSTMASTER.nfb.ca","expire":1209600,"serial":2026053262,"minimum":3600,"refresh":14400},"TXT":["APPLE-DOMAIN-VERIFICATION=6V6TVV5SKLHDZMHJ","BCN=2EDCD5F2-0772-11ED-AAF1-F43480AAB901","FACEBOOK-DOMAIN-VERIFICATION=GFJ76JWTHRQLR7GPDEPMUZHYU0H7K3","FACEBOOK-DOMAIN-VERIFICATION=NKMXB7P4KG4063U0JA3X7JHSGRH50Y","GOOGLE-SITE-VERIFICATION=J6EGV_IDVIDFHNUSRMVT6OH9D74NY8OCEFEW3SV2H7O","HAVE-I-BEEN-PWNED-VERIFICATION=A4E45C8AB915F31ED743BC9FE0ECEC6C","MS=MS26537848","MS=MS27308068","adobe-idp-site-verification=e4e5afcb1d9f55e0154efc626d8606ca67791a17c6ba4fc42d4a1053cd387efc","anthropic-domain-verification-ftk5sn=GQuoX0uA8WNx9EV8Czgmwcp9g","atlassian-domain-verification=qjCKPqaPcgAv91OvNF3rQNf754lBtLvtDG3pJcafojvX/NtuyoiVyEdAuCUFHvJe","miro-verification=cd2d7bdad6396f5761923f2962f1c1f40a5a3e16","smartsheet-site-validation=mOgjT9a23aSCeQ48JVW5wOE3xnkuUEUs","teamviewer-sso-verification=47ca5c782cc846f9bacb9a92fce00bb4","v=spf1 a ip4:52.20.37.54 ip4:199.84.162.0/24 include:carmamail.com include:spf.protection.outlook.com include:emrs._spf.ssc-spc.gc.ca a:nfb.managed-otrs.com include:mailgun.org ~all"],"DNSKEY":[{"flags":256,"protocol":3,"algorithm":13,"public_key":"fFACaontZ6ceum5pdrs6my+T7yIyXWdMEn+sTKevrDkprI8FdmorfsDwWB1khWj/STEBI4ZJacaYkptUnikQcg=="},{"flags":257,"protocol":3,"algorithm":13,"public_key":"Aa0z4FcCgmKsJ+BfeCb6qy1IJwrH1V5pKlJd0z5qjV6cB5zkngQVau115l/MHwdROlAAj2xzlIJ7THSFO82MsA=="},{"flags":256,"protocol":3,"algorithm":7,"public_key":"AwEAAcBCQ97W/JWQUNtFIQ0/PNNJxxvBi1CDKoPaA9A+U4UP1zD1p8QwlfQIEoyjn+aIIVASpH3byKfiqagsm25E+4f+4fIMO2cug4WLAWoeFtqrOgLq1gn6yp4fxeuYuKWRaU/E7v1EGttV/tCgReRAE5IrevcRmg2Nyk5MwlSqZ8rsDD8/gyNFNytkjZNrD4GpluHB1RKzLGn8muYSUxgluyWDSV0IkFI7IJOV4Aq8tip1bamkUgujSHL/ixMD872YcQ3e8FJ3v3q602ZNu8ae3QLNYM3YL/PAsj68WcmyC1lXdJalk40fjzsZ7PnAPXsWoaSqD9pQhRqRJZErO7vKKpU="},{"flags":257,"protocol":3,"algorithm":7,"public_key":"AwEAAbbaGd++kwyoQmTacWkPGdanHYJBvUPUcX7qFNskS/uPCKESE3TI/nm6MfIv5e5KBWN1zUb26IS+B+jyB18g858KiNDQC3xRPiDrpeGUHG+Tml0/c1lqYeP/1cvBNZWknM4I9N6SuqdFeGKTGM0NdfZnGJqTdMIkECXrIvpfckjcTAddu07IU4SileHf1amnStIo3GMrrYbH72YgCBziYPzqKllPVmKSJ4TtYofyKHyl1q8HiLIdE5RmamcGODfRjgSN5Ka7iNVRhsrhbo3XFiF2Gywf7fI7CT9Bxpuzz6+L4hKsUv7djKSD1TDfTu85okAhL0lrImA3hvV+OW06uoFRLwNFQjaS0UCNTDGjyM84A2rU/ZiTXclQA4hNQjnMAmB/QdNODOp6ZYJ/D2CCwPskNlqkq/nVznrCacnsbHrjhQy1kxDkvELvcCcVLPiyNu5ci5wkXDZCpgkKNslLKDKLqZnEdluiZN7iELPkayWFQXMzFgHUCb6dROdZeUt8w0kwTCJ1jpAezvFL3/GVySRCCf5JG2IPVl3Lxn4GOZoCYaaCCA6gogBUdoz/EXbfYOuSBdAdVAkkEJznivf6APILLB6gtcJQBO05TUPfFVYffYVsHRcVugRqqLMY/Ew0z6stpAlCvDwNJZtIKRx+Jln4hmva4Vx/Bx24hvcL5Hnt"}]} | 0.00000114517 | 17,510,276 | 2026-02-11 | RDAP | 2000-11-06 | 2031-08-25 | 2026-02-11 | A.R.C. Informatique Inc. | {"raw_response":{"links":[{"rel":"self","href":"https://rdap.ca.fury.ca/rdap/domain/nfb.ca","type":"application/rdap+json","title":"Authoritative URL for this resource","value":"https://rdap.ca.fury.ca/rdap/domain/nfb.ca"}],"events":[{"eventDate":"2000-11-06T14:50:00Z","eventAction":"registration"},{"eventDate":"2031-08-25T04:00:00Z","eventAction":"expiration"},{"eventDate":"2025-03-31T14:32:25Z","eventAction":"last changed"},{"eventDate":"2026-02-11T16:57:08Z","eventAction":"last update of RDAP database"}],"handle":"D20529-CIRA","port43":"whois.ca.fury.ca","status":["client transfer prohibited"],"ldhName":"nfb.ca","notices":[{"links":[{"rel":"glossary","href":"https://icann.org/epp","type":"text/html","value":"https://rdap.ca.fury.ca/rdap/domain/nfb.ca"}],"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.cira.ca/en/resources/documents/about/website-terms-use","type":"text/html","value":"https://rdap.ca.fury.ca/rdap/domain/nfb.ca"}],"title":"Terms of Service","description":["Service subject to Terms of Use."]},{"links":[{"rel":"help","href":"https://icann.org/wicf","type":"text/html","value":"https://rdap.ca.fury.ca/rdap/domain/nfb.ca"}],"title":"RDDS Inaccuracy Complaint Form","description":["URL of the ICANN RDDS Inaccuracy Complaint Form: https://icann.org/wicf"]},{"links":[{"rel":"help","href":"https://www.cira.ca/en/resources/documents/about/website-terms-use","type":"text/html","value":"https://rdap.ca.fury.ca/rdap/domain/nfb.ca"}],"title":"Legal Notice","description":["\nUse of CIRA's WHOIS service is governed by the Terms of Use in its Legal\nNotice, available at https://www.cira.ca/en/resources/documents/about/website-terms-use\n\n(c) 2026 Canadian Internet Registration Authority, (http://www.cira.ca/)"]}],"entities":[{"roles":["registrar"],"handle":"not applicable","entities":[{"roles":["abuse"],"handle":"not applicable","vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","Abuse Contact"],["kind",{},"text","individual"],["role",{},"text","abuse"],["adr",{},"text",["","","","","","",""]],["tel",{"type":["voice"]},"uri","tel:+1.4185459224"],["email",{},"text","mona@arcinfo.qc.ca"],["url",{"type":"home"},"uri","www.webdomaine.ca"]]],"objectClassName":"entity"}],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","A.R.C. Informatique Inc."],["kind",{},"text","org"],["role",{},"text","registrar"],["adr",{},"text",["","","","","","",""]],["url",{"type":"home"},"uri","www.webdomaine.ca"]]],"objectClassName":"entity"},{"roles":["registrant"],"handle":"R27314-CIRA","vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","National Film Board of Canada / Office national du film du Canada"],["kind",{},"text","individual"],["org",{},"text","National Film Board of Canada / Office national du film du Canada"],["role",{},"text","registrant"],["adr",{"cc":"CA"},"text",["","","1501 rue de Bleury","Montreal","QC","H3A0H3",""]],["tel",{"type":["voice"]},"uri","tel:+1.5148206850"],["email",{},"text","b.gervasi@nfb.ca"],["url",{"type":"home"},"uri","www.webdomaine.ca"]]],"objectClassName":"entity"},{"roles":["administrative"],"handle":"C926675-CIRA","vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","Mr Bruno Gervasi"],["kind",{},"text","individual"],["org",{},"text","National Film Board of Canada"],["role",{},"text","administrative"],["adr",{"cc":"CA"},"text",["","","1501 rue de Bleury","Montreal","QC","H3A0H3",""]],["tel",{"type":["voice"]},"uri","tel:+1.5148206850"],["email",{},"text","dnsmaster@nfb.ca"],["url",{"type":"home"},"uri","www.webdomaine.ca"]]],"objectClassName":"entity"},{"roles":["technical"],"handle":"81474433-CIRA","vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","Marco Girouard"],["kind",{},"text","individual"],["org",{},"text","National Film Board of Canada"],["role",{},"text","technical"],["adr",{"cc":"CA"},"text",["","","1501 rue De Bleury","Montreal","QC","H3A0H3",""]],["tel",{"type":["voice"]},"uri","tel:+1.5149924020"],["email",{},"text","m.girouard@nfb.ca"],["url",{"type":"home"},"uri","www.webdomaine.ca"]]],"objectClassName":"entity"},{"roles":["billing"],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text",""],["kind",{},"text","individual"],["org",{},"text",""],["role",{},"text","billing"],["adr",{},"text",["","","","","","",""]],["tel",{"type":["voice"]},"text",""],["tel",{"type":["fax"]},"text",""],["email",{},"text",""],["url",{"type":"home"},"uri","www.webdomaine.ca"]]],"objectClassName":"entity"}],"secureDNS":{"dsData":[{"digest":"2E627DDB59DA5200DA77D5D047055EC13DCF9DB8","events":[{"eventDate":"2020-04-21T19:16:50Z","eventAction":"registration"}],"keyTag":46290,"algorithm":7,"digestType":1},{"digest":"10E490F8C87FC9DF75035046716E077965518265F140BDC2811312044FD4B269","events":[{"eventDate":"2020-04-21T19:16:50Z","eventAction":"registration"}],"keyTag":46290,"algorithm":7,"digestType":2}],"delegationSigned":true},"nameservers":[{"ldhName":"ns3.nfb.ca","objectClassName":"nameserver"},{"ldhName":"ns4.nfb.ca","objectClassName":"nameserver"},{"ldhName":"ns5.nfb.ca","objectClassName":"nameserver"}],"unicodeName":"nfb.ca","objectClassName":"domain","rdapConformance":["icann_rdap_response_profile_1","icann_rdap_technical_implementation_guide_1","rdap_level_0"]}} | Domain is active |
| polarsteps.com | com | com | ICANN | HTTP 200 | 52.16.161.12 | IE | {"reddit":["https://reddit.com/r/Polarsteps"],"tiktok":["https://tiktok.com/@polarsteps"],"instagram":["https://instagram.com/polarsteps"]} | 2026-07-04 | HSTS, React, HTTP/2, Python, Uvicorn, Zendesk, Mixpanel, Atlassian, CookieYes, Detectify | 2026-07-28 | TRUE | {"A":["52.16.161.12","52.48.123.253"],"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}],"NS":["ns-1263.awsdns-29.org","ns-1703.awsdns-20.co.uk","ns-442.awsdns-55.com","ns-553.awsdns-05.net"],"SOA":{"mname":"ns-553.awsdns-05.net","retry":900,"rname":"awsdns-hostmaster.amazon.com","expire":1209600,"serial":1,"minimum":86400,"refresh":7200},"TXT":["MS=ms60868660","apple-domain-verification=7MIUgeNFXkALldbN","atlassian-domain-verification=uIMHercaWE0SW3qfUOyMloN47CTNvZgHHaMQfIcSsRxa46Sk11yJOlyIUFb2pXhf","detectify-verification=6d51c3a99ff63f3c2b9774a99b9bbafb","facebook-domain-verification=jcxyymroi9bwrqgxu5bw2fp9cossot","google-site-verification=172dlo3lLvkvzMBb5hgewhtJVy21A3v_IP_qXON9l4E","google-site-verification=2gfO4l3ziXeb38dj-HPIrh5Ihapk51U-4YM8FTms2Kg","google-site-verification=JOPLLBIHtsK_8qPSkUzpSDUBLvzQCBBwDYWKJnSnH9w","google-site-verification=vYkZF-iRWxuIN_3_SKvney4B7zGeVaUhvI_lohRINkE","google-site-verification=vm1VDEBg3savwlVh3jKEhH2ehwPK3ww2bYbA2xLQNJk","google-site-verification=ydOg1Ncc1TlLVrLVwRGyp_YSeUCrIIUlrnfuMiUGs8Y","mixpanel-domain-verify=78a1ae65-6593-4db9-b3be-fd0e80f02042","new-relic-domain-verification=073a736ed134408889964777e84d4d60","tiktok-developers-site-verification=DlHgoE4Zur7W6nbeOckn7gLoa79AULr9","v=spf1 a include:_spf.google.com include:helpscoutemail.com include:_spf.airship.co.uk include:mail.zendesk.com ~all"]} | 0.000000662023 | 17,638,640 | 2026-05-26 | RDAP | 2010-06-04 | 2027-06-04 | 2026-05-05 | NameCheap, Inc. | {"raw_response":{"links":[{"rel":"self","href":"https://rdap.verisign.com/com/v1/domain/POLARSTEPS.COM","type":"application/rdap+json","value":"https://rdap.verisign.com/com/v1/domain/POLARSTEPS.COM"},{"rel":"related","href":"https://rdap.namecheap.com/domain/POLARSTEPS.COM","type":"application/rdap+json","value":"https://rdap.namecheap.com/domain/POLARSTEPS.COM"}],"events":[{"eventDate":"2010-06-04T12:56:11Z","eventAction":"registration"},{"eventDate":"2027-06-04T12:56:11Z","eventAction":"expiration"},{"eventDate":"2026-05-05T10:19:07Z","eventAction":"last changed"},{"eventDate":"2026-05-25T23:25:51Z","eventAction":"last update of RDAP database"}],"handle":"1600564185_DOMAIN_COM-VRSN","status":["client transfer prohibited"],"ldhName":"POLARSTEPS.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/polarsteps.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/polarsteps.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":"NS-1263.AWSDNS-29.ORG","objectClassName":"nameserver"},{"ldhName":"NS-1703.AWSDNS-20.CO.UK","objectClassName":"nameserver"},{"ldhName":"NS-442.AWSDNS-55.COM","objectClassName":"nameserver"},{"ldhName":"NS-553.AWSDNS-05.NET","objectClassName":"nameserver"}],"objectClassName":"domain","rdapConformance":["rdap_level_0","icann_rdap_technical_implementation_guide_1","icann_rdap_response_profile_1"]}} | Domain is active |
| onf.ca | ca | ca | ICANN | HTTP 200 | 35.182.164.155 | CA | {"tiktok":["https://tiktok.com/@nfb_onf"],"youtube":["https://youtube.com/onf"],"facebook":["https://facebook.com/onf.ca"],"linkedin":["https://linkedin.com/company/national-film-board-of-canada"],"instagram":["https://instagram.com/onf_nfb"],"x-twitter":["https://twitter.com/onf"]} | 2026-07-03 | PWA, RSS, Miro, Python, Mailgun, Uvicorn, Google Ads, Open Graph, Reddit Ads, Microsoft 365 | 2026-07-26 | TRUE | {"A":["35.182.164.155"],"DS":[{"digest":"22abf039157305c388c84477984a6639d98e2be7c6a0874c34d69c881c966315","key_tag":21878,"algorithm":13,"digest_type":2},{"digest":"00a281cf34bdf3bece02a372aed31f70289cb82d4609d149be960a4b88e6d62c","key_tag":20763,"algorithm":7,"digest_type":2},{"digest":"5b145bfeba22ea308dc5d9ad3c18b4f7323176cb","key_tag":20763,"algorithm":7,"digest_type":1}],"MX":[{"host":"onf-ca.mail.protection.outlook.com","priority":10}],"NS":["NS3.NFB.ca","NS4.NFB.ca","NS5.NFB.ca"],"SOA":{"mname":"NS4.NFB.ca","retry":3600,"rname":"POSTMASTER.NFB.ca","expire":1209600,"serial":2026053714,"minimum":3600,"refresh":14400},"TXT":["MS=ms26537848","MS=ms27308068","apple-domain-verification=6v6TvV5SKLHdZmHJ","bcn=59BF248C-0772-11ED-9D0B-55E614E0321E","facebook-domain-verification=gfj76jwthrqlr7gpdepmuzhyu0h7k3","facebook-domain-verification=nkmxb7p4kg4063u0ja3x7jhsgrh50y","google-site-verification=LgfyTfnGtVWLZsNyGZ0NqV2lf3srxsQUc72XHDeOFOc","have-i-been-pwned-verification=a4e45c8ab915f31ed743bc9fe0ecec6c","miro-verification=cd2d7bdad6396f5761923f2962f1c1f40a5a3e16","smartsheet-site-validation=fJyFysgBZx3u6HRND3ctFyFSK1wU7toM","v=spf1 a ip4:52.20.37.54 ip4:199.84.162.0/24 include:carmamail.com include:spf.protection.outlook.com include:emrs._spf.ssc-spc.gc.ca a:nfb.managed-otrs.com include:mailgun.org ~all"],"DNSKEY":[{"flags":256,"protocol":3,"algorithm":13,"public_key":"McOn0APKyxz7MX0bLgGQ/qkENlCA4xhIJDhBN3g9PuzZ9hJlsBcQd7CzpW3rebPvWwCGtxxiyoxTjaAjxJYLDA=="},{"flags":257,"protocol":3,"algorithm":13,"public_key":"bhkWkEeovTEBfWYzugVeTWrIVNrHZa8sVokVbMHFPKkoOkXlc4B2Bre9IYWU9f8xxosyUqR5E4bKpUZavpNhxQ=="},{"flags":256,"protocol":3,"algorithm":7,"public_key":"AwEAAaLIQ3mCz6B+Lk3CJGhDOdwB+LI3Ih25ZUsxEGUjcQJBwRq9LdiwG2TairnL+yPLXET0uDkNeuEzMq54eGYOzJmhDBBfUiT1GT71S2/LwEjBMiZxqykjZCznPeRDGU39ZyMBAvvaWpMXLvTal5mPFO/20ZcxBYVa5DENkt4B7fvGTmGm48UTE0QRzGrQVJh0ZEpCJHsydpRAgC3D/OeEhGe5BiQTco91hVPOFF7duHk7ujH2E6T/YjIBtOf1s3OoCsAUnD1nTR2YBMtm2GeKVxyh7X/Bs6XBio1NWVpWKGL4Tb6Y2OAS2IecbbVddpFYKPK4/VpL2i+XNfogve0KLI0="},{"flags":257,"protocol":3,"algorithm":7,"public_key":"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"}]} | 0.000000548905 | 17,295,178 | 2025-06-24 | RDAP | 2000-11-06 | 2031-08-25 | 2025-06-24 | A.R.C. Informatique Inc. | {"raw_response":{"links":[{"rel":"self","href":"https://rdap.ca.fury.ca/rdap/domain/onf.ca","type":"application/rdap+json","title":"Authoritative URL for this resource"}],"events":[{"eventDate":"2000-11-06T16:58:34Z","eventAction":"registration"},{"eventDate":"2031-08-25T04:00:00Z","eventAction":"expiration"},{"eventDate":"2025-03-31T14:27:54Z","eventAction":"last changed"},{"eventDate":"2025-06-24T21:03:56Z","eventAction":"last update of RDAP database"}],"handle":"D20759-CIRA","port43":"whois.ca.fury.ca","status":["active"],"ldhName":"onf.ca","notices":[{"links":[{"rel":"related","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":"related","href":"https://cira.ca/legal-policy-compliance/website-terms-use","type":"text/html"}],"title":"Terms of Service","description":["Service subject to Terms of Use."]},{"links":[{"rel":"related","href":"https://icann.org/wicf","type":"text/html"}],"title":"RDDS Inaccuracy Complaint Form","description":["URL of the ICANN RDDS Inaccuracy Complaint Form: https://icann.org/wicf"]},{"links":[{"rel":"related","href":"http://www.cira.ca/legal-notice","type":"text/html"}],"title":"Legal Notice","description":["\nUse of CIRA's WHOIS service is governed by the Terms of Use in its Legal\nNotice, available at http://www.cira.ca/legal-notice/?lang=en\n\n(c) 2025 Canadian Internet Registration Authority, (http://www.cira.ca/)"]}],"entities":[{"roles":["registrar"],"handle":"not applicable","entities":[{"roles":["abuse"],"handle":"not applicable","publicIds":[],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","Abuse Contact"],["kind",{},"text","individual"],["role",{},"text","abuse"],["adr",{},"text",["","","","","","",""]],["tel",{"type":["voice"]},"uri","tel:+1.4185459224"],["email",{},"text","mona@arcinfo.qc.ca"],["url",{"type":"home"},"uri","www.webdomaine.ca"]]],"objectClassName":"entity"}],"publicIds":[],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","A.R.C. Informatique Inc."],["kind",{},"text","org"],["role",{},"text","registrar"],["adr",{},"text",["","","","","","",""]],["url",{"type":"home"},"uri","www.webdomaine.ca"]]],"objectClassName":"entity"},{"roles":["registrant"],"handle":"R27314-CIRA","publicIds":[{"type":"ROID","identifier":"R27314-CIRA"}],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","National Film Board of Canada / Office national du film du Canada"],["kind",{},"text","individual"],["org",{},"text","National Film Board of Canada / Office national du film du Canada"],["role",{},"text","registrant"],["adr",{},"text",["","","1501 rue de Bleury","Montreal","QC","H3A0H3","CA"]],["tel",{"type":["voice"]},"uri","tel:+1.5148206850"],["email",{},"text","b.gervasi@nfb.ca"],["url",{"type":"home"},"uri","www.webdomaine.ca"]]],"objectClassName":"entity"},{"roles":["administrative"],"handle":"C926675-CIRA","publicIds":[{"type":"ROID","identifier":"C926675-CIRA"}],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","Mr Bruno Gervasi"],["kind",{},"text","individual"],["org",{},"text","National Film Board of Canada"],["role",{},"text","administrative"],["adr",{},"text",["","","1501 rue de Bleury","Montreal","QC","H3A0H3","CA"]],["tel",{"type":["voice"]},"uri","tel:+1.5148206850"],["email",{},"text","dnsmaster@nfb.ca"],["url",{"type":"home"},"uri","www.webdomaine.ca"]]],"objectClassName":"entity"},{"roles":["technical"],"handle":"81474433-CIRA","publicIds":[{"type":"ROID","identifier":"81474433-CIRA"}],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","Marco Girouard"],["kind",{},"text","individual"],["org",{},"text","National Film Board of Canada"],["role",{},"text","technical"],["adr",{},"text",["","","1501 rue De Bleury","Montreal","QC","H3A0H3","CA"]],["tel",{"type":["voice"]},"uri","tel:+1.5149924020"],["email",{},"text","m.girouard@nfb.ca"],["url",{"type":"home"},"uri","www.webdomaine.ca"]]],"objectClassName":"entity"},{"roles":["billing"],"publicIds":[],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text",""],["kind",{},"text","individual"],["org",{},"text",""],["role",{},"text","billing"],["adr",{},"text",["","","","","","",""]],["email",{},"text",""],["url",{"type":"home"},"uri","www.webdomaine.ca"]]],"objectClassName":"entity"}],"secureDNS":{"dsData":[{"digest":"00A281CF34BDF3BECE02A372AED31F70289CB82D4609D149BE960A4B88E6D62C","events":[{"eventDate":"2020-04-21T19:20:39Z","eventAction":"registration"}],"keyTag":20763,"algorithm":7,"digestType":2},{"digest":"5B145BFEBA22EA308DC5D9AD3C18B4F7323176CB","events":[{"eventDate":"2020-04-21T19:20:39Z","eventAction":"registration"}],"keyTag":20763,"algorithm":7,"digestType":1}],"delegationSigned":true},"nameservers":[{"ldhName":"ns3.nfb.ca","objectClassName":"nameserver"},{"ldhName":"ns4.nfb.ca","objectClassName":"nameserver"},{"ldhName":"ns5.nfb.ca","objectClassName":"nameserver"}],"unicodeName":"onf.ca","objectClassName":"domain","rdapConformance":["icann_rdap_response_profile_1","icann_rdap_technical_implementation_guide_1","rdap_level_0"]}} | Domain is active |
| pomodoro-tracker.com | com | com | ICANN | HTTP 200 | 178.212.13.133 | RU | {"github":["https://github.com/klen/pomodoro-tracker-locales"]} | 2026-07-04 | PWA, HSTS, HTTP/2, Python, Uvicorn, Cloudflare, Open Graph, Google AdSense, Google Site Verification, Cloudflare Browser Insights | 2026-07-17 | TRUE | {"A":["178.212.13.133"],"MX":[{"host":"mail.pomodoro-tracker.com","priority":1}],"NS":["ara.ns.cloudflare.com","jeremy.ns.cloudflare.com"],"SOA":{"mname":"ara.ns.cloudflare.com","retry":2400,"rname":"dns.cloudflare.com","expire":604800,"serial":2405900832,"minimum":1800,"refresh":10000},"TXT":["google-site-verification=2YeNA5PDLQq672WCdkEzIbomOT72ekNZ8-WGevuz2S8","v=spf1 ip4:178.212.13.133 ~all","yandex-verification: 4d89783dc8e84ce0"]} | 0.000000350416 | 14,304,924 | 2025-06-24 | RDAP | 2015-08-23 | 2028-08-23 | 2025-06-24 | Cloudflare, Inc. | {"raw_response":{"links":[{"rel":"self","href":"https://rdap.verisign.com/com/v1/domain/POMODORO-TRACKER.COM","type":"application/rdap+json","value":"https://rdap.verisign.com/com/v1/domain/POMODORO-TRACKER.COM"},{"rel":"related","href":"https://rdap.cloudflare.com/rdap/v1/domain/POMODORO-TRACKER.COM","type":"application/rdap+json","value":"https://rdap.cloudflare.com/rdap/v1/domain/POMODORO-TRACKER.COM"}],"events":[{"eventDate":"2015-08-23T09:07:55Z","eventAction":"registration"},{"eventDate":"2028-08-23T09:07:55Z","eventAction":"expiration"},{"eventDate":"2023-08-24T04:10:08Z","eventAction":"last changed"},{"eventDate":"2025-06-24T04:41:14Z","eventAction":"last update of RDAP database"}],"handle":"1954754951_DOMAIN_COM-VRSN","status":["client transfer prohibited"],"ldhName":"POMODORO-TRACKER.COM","notices":[{"links":[{"href":"https://www.verisign.com/domain-names/registration-data-access-protocol/terms-service/index.xhtml","type":"text/html"}],"title":"Terms of Use","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":[{"href":"https://icann.org/wicf","type":"text/html"}],"title":"RDDS Inaccuracy Complaint Form","description":["URL of the ICANN RDDS Inaccuracy Complaint Form: https://icann.org/wicf"]}],"entities":[{"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":"ARA.NS.CLOUDFLARE.COM","objectClassName":"nameserver"},{"ldhName":"JEREMY.NS.CLOUDFLARE.COM","objectClassName":"nameserver"}],"objectClassName":"domain","rdapConformance":["rdap_level_0","icann_rdap_technical_implementation_guide_0","icann_rdap_response_profile_0"]}} | Domain is active |
| … | … | … | … | … | … | … | … | … | … | … | … | … | … | … | … | … | … | … | … | … | … | … |
The Uvicorn dataset
Every site we've detected as running Uvicorn — with version, hosting, country, TLD and traffic rank.
Uvicorn lives inside 2 datasets
Uvicorn detection is part of Technologies (€159/mo) and All data (€599/mo). Buy either to filter the full 17,152-site list — or grab a free preview first.
Which websites are using Uvicorn?
webatla detects every site using Uvicorn and exports them as one downloadable list, so you can see who relies on this technology and what else runs alongside it.
Open the Uvicorn technology dataset to break adoption down by country and TLD, compare it with a competing technology, and track new domains over time.
Frequently asked questions
How many websites use Uvicorn?
webatla detects Uvicorn on 17K websites, refreshed daily — each with its domain, DNS, WHOIS, IP, country and ranking.
Can I download the list of websites using Uvicorn?
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 Uvicorn?
Buy the technology dataset, then download the complete list of domains we detect using Uvicorn — re-exported every day.
What else is in the Uvicorn technology data?
Each row places Uvicorn next to the other technology on the same site, plus DNS, WHOIS, IP, country and ranking.
Can I download just the sites using Uvicorn, or the whole database?
Both. Every site running Uvicorn 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 Uvicorn?
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 Uvicorn 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.
Get the full list of websites using Uvicorn
Pick the dataset that covers what you need. Each one includes Uvicorn and downloads as JSONL, rebuilt daily.
Want to compare every dataset side by side? Visit the pricing page