Websites using ef.js - 50 Live sites

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

About ef.js Database preview Download

About ef.js

webatla tracks 50 live websites using ef.js, 0.0% of every site we index. Download the full list of websites that use ef.js as a daily JSONL export. Every record includes the domain plus DNS, WHOIS, IP address, hosting country and global rank.

ef.js is a lightweight, reactive JavaScript framework focused on building user interfaces with a component-based architecture. It uses a template-based syntax that compiles to efficient DOM operations, aiming to provide a minimal footprint while supporting reactive data binding and component composition.

Designed for developers who want a small, fast alternative to larger frameworks, ef.js occupies a niche in the JavaScript UI library ecosystem. It emphasizes simplicity and performance, making it suitable for projects where bundle size is a concern. While not as widely adopted as mainstream frameworks like React or Vue, ef.js has a dedicated community of users who appreciate its minimalist approach to reactive UI development.

At a glance

Websiteef.js.org ↗

LanguageJavaScript

LicenseMIT

First release2017-01-01

All figures as of Aug 18, 2026

50 Sites detected

0.0% Of all websites

Database preview of ef.js sites

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

webatla-technologies-ef-js-2026-08-18.jsonl.zst · 50 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
ohioemploymentfirst.org	org	org	ICANN	HTTP 200	167.172.140.11	US	—	2026-08-13	PHP, Nginx, ef.js, HTTP/2, AddThis, GoDaddy, Laravel, Livewire, ShareThis, Open Graph	0.0000000400692	13,387,651	2012-12-17	2027-12-17
dejavu-net.jp	jp	jp	ICANN	HTTP 200	54.238.96.37	JP	{"tiktok":["https://tiktok.com/@dejavu_official.jp"],"youtube":["https://youtube.com/channel/UClLU-kb3EBf4ibJ7bCrCdHA?view_as=subscriber"],"instagram":["https://instagram.com/dejavu_official.jp?hl=ja"],"x-twitter":["https://twitter.com/dejavu_campaign"]}	2026-07-29	PHP 8.3.10, ef.js, HTTP/2, Swiper, jQuery 3.3.1, Favicon, Amazon ALB, Google Ads, Open Graph, Twitter Ads	0.0000000232561	13,683,719	2009-10-09	2026-10-31
folkbibeln.it	it	it	ICANN	HTTP 200	46.30.213.114	DK	—	2026-08-03	PHP 8.0.30, ef.js, HTTP/2, jQuery 2.1.1, One.com, Varnish, Open Graph, Font Awesome, Apache HTTP Server	0.0000000153508	14,020,381	2014-10-17	2026-10-17
mtl.co.jp	co.jp	jp	ICANN	HTTP 200	153.123.7.43	JP	{"youtube":["https://youtube.com/@microtechlaboratory1794"],"facebook":["https://facebook.com/p/%E3%83%9E%E3%82%A4%E3%82%AF%E3%83%AD%E3%83%86%E3%83%83%E3%82%AF%E3%83%A9%E3%83%9C%E3%83%A9%E3%83%88%E3%83%AA%E3%83%BC%E6%A0%AA%E5%BC%8F%E4%BC%9A%E7%A4%BE-100063520358877?locale=ja_JP"],"linkedin":["https://linkedin.com/company/mtl-japan"]}	2026-08-12	PHP, MySQL, Nginx, Plesk, Slick, ef.js, HTTP/2, jQuery, Favicon, HubSpot	0.0000000152829	12,750,265	—	—
zeppelinpm.ru	ru	ru	ICANN	HTTP 200	31.31.198.163	RU	{"vk":["https://vk.com/zeppelinpm"],"telegram":["https://t.me/zeppelin_pm"]}	2026-07-18	PHP, Nginx, ef.js, HTTP/2, amoCRM, jQuery, Favicon, FancyBox, jsDelivr, 1C-Bitrix	0.0000000147997	12,986,670	2006-05-21	2027-05-21
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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
ohioemploymentfirst.org	org	org	ICANN	HTTP 200	167.172.140.11	US	—	2026-08-13	PHP, Nginx, ef.js, HTTP/2, AddThis, GoDaddy, Laravel, Livewire, ShareThis, Open Graph	2026-08-07	TRUE	{"A":["167.172.140.11"],"MX":[{"host":"mailstore1.secureserver.net","priority":10},{"host":"smtp.secureserver.net","priority":0}],"NS":["ns31.domaincontrol.com","ns32.domaincontrol.com"],"SOA":{"mname":"ns31.domaincontrol.com","retry":7200,"rname":"dns.jomax.net","expire":604800,"serial":2026021800,"minimum":600,"refresh":28800}}	0.0000000400692	13,387,651	2025-07-03	RDAP	2012-12-17	2027-12-17	2025-07-03	GoDaddy.com, LLC	{"raw_response":{"links":[{"rel":"related","href":"https://rdap.godaddy.com/v1/domain/ohioemploymentfirst.org","type":"application/rdap+json","value":"https://rdap.godaddy.com/v1/domain/ohioemploymentfirst.org"},{"rel":"self","href":"https://rdap.publicinterestregistry.org/rdap/domain/ohioemploymentfirst.org","type":"application/rdap+json","value":"https://rdap.publicinterestregistry.org/rdap/domain/ohioemploymentfirst.org"}],"events":[{"eventDate":"2027-12-17T20:01:15.796Z","eventAction":"expiration"},{"eventDate":"2012-12-17T20:01:15.796Z","eventAction":"registration"},{"eventDate":"2025-05-14T14:46:22.415Z","eventAction":"last changed"},{"eventDate":"2025-07-03T19:55:08.72Z","eventAction":"last update of RDAP database"}],"handle":"ca51c423d9a64ac1959569ddd9323ddf-LROR","status":["client delete prohibited","client renew prohibited","client transfer prohibited","client update prohibited"],"ldhName":"ohioemploymentfirst.org","notices":[{"links":[{"rel":"alternate","href":"https://thenew.org/org-people/about-pir/policies/","type":"text/html","value":"https://rdap.publicinterestregistry.org/rdap/domain/ohioemploymentfirst.org"}],"title":"Terms of Service","description":["Public Interest Registry provides this RDAP service for informational purposes only, and to assist persons in obtaining information about or related to a domain name registration record. Public Interest Registry does not guarantee its accuracy. Users accessing the Public Interest Registry RDAP service agree to use the data only for lawful purposes, and under no circumstances may this data be used 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 registrar's own existing customers and b) enable high volume, automated, electronic processes that send queries or data to the systems of Public Interest Registry or any ICANN-accredited registrar, except as reasonably necessary to register domain names or modify existing registrations. When using the Public Interest Registry RDAP service, please consider the following: the RDAP service is not a replacement for standard EPP commands to the SRS service. RDAP is not considered authoritative for registered domain objects. The RDAP service may be scheduled for downtime during production or OT&E maintenance periods. Queries to the RDAP 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 RDAP service access. Abuse of the RDAP 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 RDAP 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 can be requested by submitting a request to WHOISrequest@pir.org. Public Interest Registry Inc. reserves the right to modify these terms at any time. By submitting this query, you agree to abide by this policy."]},{"links":[{"rel":"self","href":"https://icann.org/epp","type":"application/rdap+json","value":"https://icann.org/epp"}],"title":"Status Codes","description":["For more information on domain status codes, please visit https://icann.org/epp"]},{"links":[{"rel":"self","href":"https://icann.org/wicf","type":"application/rdap+json","value":"https://icann.org/wicf"}],"title":"RDDS Inaccuracy Complaint Form","description":["URL of the ICANN RDDS Inaccuracy Complaint Form: https://icann.org/wicf"]}],"entities":[{"roles":["technical"],"events":[{"eventDate":"2025-07-03T19:55:08.72Z","eventAction":"last update of RDAP database"}],"remarks":[{"type":"object redacted due to authorization","title":"REDACTED","description":["Some of the data in this object has been removed."]}],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text",""]]],"objectClassName":"entity"},{"roles":["administrative"],"events":[{"eventDate":"2025-07-03T19:55:08.72Z","eventAction":"last update of RDAP database"}],"remarks":[{"type":"object redacted due to authorization","title":"REDACTED","description":["Some of the data in this object has been removed."]}],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text",""]]],"objectClassName":"entity"},{"roles":["registrant"],"events":[{"eventDate":"2025-07-03T19:55:08.72Z","eventAction":"last update of RDAP database"}],"remarks":[{"type":"object redacted due to authorization","title":"REDACTED","description":["Some of the data in this object has been removed."]}],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text",""],["org",{"type":"work"},"text","Domains By Proxy, LLC"],["adr",{"cc":"US"},"text",["","","","","Arizona","",""]]]],"objectClassName":"entity"},{"links":[{"rel":"self","href":"https://rdap.publicinterestregistry.org/rdap/entity/146","type":"application/rdap+json","value":"https://rdap.publicinterestregistry.org/rdap/entity/146"}],"roles":["registrar"],"handle":"146","entities":[{"roles":["abuse"],"handle":"2e245ac341044535ad2f256defd5d975-LROR","vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","Domains Abuse"],["tel",{"type":"voice"},"uri","tel:+1.4806242505"],["email",{},"text","abuse@godaddy.com"]]],"objectClassName":"entity"}],"publicIds":[{"type":"IANA Registrar ID","identifier":"146"}],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","GoDaddy.com, LLC"]]],"objectClassName":"entity"}],"publicIds":[{"type":"IANA Registrar ID","identifier":"146"}],"secureDNS":{"maxSigLife":1,"delegationSigned":false},"nameservers":[{"handle":"b08dd9a0212a47229b7df30a00fd0108-LROR","status":["associated"],"ldhName":"ns31.domaincontrol.com","unicodeName":"ns31.domaincontrol.com","objectClassName":"nameserver"},{"handle":"4ee367088e0a4298a5dd4a9be7d757ed-LROR","status":["associated"],"ldhName":"ns32.domaincontrol.com","unicodeName":"ns32.domaincontrol.com","objectClassName":"nameserver"}],"unicodeName":"ohioemploymentfirst.org","objectClassName":"domain","rdapConformance":["rdap_level_0","icann_rdap_response_profile_0","icann_rdap_technical_implementation_guide_0"]}}	Domain is active
dejavu-net.jp	jp	jp	ICANN	HTTP 200	54.238.96.37	JP	{"tiktok":["https://tiktok.com/@dejavu_official.jp"],"youtube":["https://youtube.com/channel/UClLU-kb3EBf4ibJ7bCrCdHA?view_as=subscriber"],"instagram":["https://instagram.com/dejavu_official.jp?hl=ja"],"x-twitter":["https://twitter.com/dejavu_campaign"]}	2026-07-29	PHP 8.3.10, ef.js, HTTP/2, Swiper, jQuery 3.3.1, Favicon, Amazon ALB, Google Ads, Open Graph, Twitter Ads	2026-08-10	TRUE	{"A":["54.238.96.37"],"MX":[{"host":"mail.dejavu-net.jp","priority":10}],"NS":["ns-1444.awsdns-52.org","ns-1832.awsdns-37.co.uk","ns-400.awsdns-50.com","ns-541.awsdns-03.net"],"SOA":{"mname":"ns-541.awsdns-03.net","retry":900,"rname":"awsdns-hostmaster.amazon.com","expire":1209600,"serial":1,"minimum":86400,"refresh":7200},"TXT":["facebook-domain-verification=nzumynfap3uegy3y1jrmzetif25wms"]}	0.0000000232561	13,683,719	2025-11-04	WHOIS	2009-10-09	2026-10-31	2025-11-01	Imju Corporation	{"raw_response":"[ JPRS database provides information on network administration. Its use is ]\r\n[ restricted to network administration purposes. For further information, ]\r\n[ use 'whois -h whois.jprs.jp help'. To suppress Japanese output, add'/e' ]\r\n[ at the end of command, e.g. 'whois -h whois.jprs.jp xxx/e'. ]\r\nDomain Information:\r\n[Domain Name] DEJAVU-NET.JP\r\n\r\n[Registrant] Imju Corporation\r\n\r\n[Name Server] ns-541.awsdns-03.net\r\n[Name Server] ns-1832.awsdns-37.co.uk\r\n[Name Server] ns-400.awsdns-50.com\r\n[Name Server] ns-1444.awsdns-52.org\r\n[Signing Key] \r\n\r\n[Created on] 2009/10/09\r\n[Expires on] 2026/10/31\r\n[Status] Active\r\n[Last Updated] 2025/11/01 01:05:04 (JST)\r\n\r\nContact Information:\r\n[Name] Imju Corporation\r\n[Email] mailadmin@p-pp.jp\r\n[Web Page] \r\n[Postal code] 104-0061\r\n[Postal Address] 4-8-10,Ginza,Chuo-ku.\r\n TOKYO 104-0061 JAPAN\r\n[Phone] 03-3564-5311\r\n[Fax] \r\n\r\n"}	Domain is active
folkbibeln.it	it	it	ICANN	HTTP 200	46.30.213.114	DK	—	2026-08-03	PHP 8.0.30, ef.js, HTTP/2, jQuery 2.1.1, One.com, Varnish, Open Graph, Font Awesome, Apache HTTP Server	2026-08-10	TRUE	{"A":["46.30.213.114"],"MX":[{"host":"mx1.pub.mailpod10-cph3.one.com","priority":10},{"host":"mx2.pub.mailpod10-cph3.one.com","priority":10},{"host":"mx3.pub.mailpod10-cph3.one.com","priority":10},{"host":"mx4.pub.mailpod10-cph3.one.com","priority":10}],"NS":["ns01.one.com","ns02.one.com"],"SOA":{"mname":"ns01.one.com","retry":3600,"rname":"hostmaster.one.com","expire":1209600,"serial":2026061105,"minimum":600,"refresh":14400},"AAAA":["2a02:2350:5:10b:8092:d945:78e3:7e9d"],"DNSKEY":[{"flags":256,"protocol":3,"algorithm":13,"public_key":"vnUYc8l4J1Jp8dc/7MxJ8wVk+F87SA3y/5w1/i5DAiHTBzgYw2m92ytu62K7OwXzs+9eBu2gYAP8isJ/A5v+Mw=="},{"flags":257,"protocol":3,"algorithm":13,"public_key":"VcGL+PIUTYAAQppQwp4glVCo4xrxkTqpPsmCxieD8vJBPxoeoTsSmL0vfpinfGhwXQDu4DADy5u9m8EYm8hqlQ=="}]}	0.0000000153508	14,020,381	2025-12-31	WHOIS	2014-10-17	2026-10-17	2025-11-02	Ascio Technologies Inc.	{"raw_response":"\n********************************************************************\n Please note that the following result could be a subgroup of \n the data contained in the database. \n \n Additional information can be visualized at: \n http://web-whois.nic.it \n********************************************************************\n\nDomain: folkbibeln.it\nStatus: ok\nSigned: no\nCreated: 2014-10-17 02:18:52\nLast Update: 2025-11-02 00:43:27\nExpire Date: 2026-10-17\n\nRegistrant\n Organization: Tony Larsson\n Address: Emil Klassons vag 8\n Billdal\n 427 37\n Billdal\n SE\n Created: 2018-03-06 11:56:11\n Last Update: 2018-03-06 11:56:11\n\nAdmin Contact\n Name: Tony Larsson\n Organization: Tony Larsson\n Address: Emil Klassons vag 8\n Billdal\n 427 37\n Billdal\n SE\n Created: 2018-03-06 11:56:11\n Last Update: 2018-03-06 11:56:11\n\nTechnical Contacts\n Name: hidden\n Organization: hidden\n\nRegistrar\n Organization: Ascio Technologies Inc.\n Name: ASCIO-REG\n Web: http://www.ascio.com\n DNSSEC: no\n\n\nNameservers\n ns01.one.com\n ns02.one.com\n\n"}	Domain is active
mtl.co.jp	co.jp	jp	ICANN	HTTP 200	153.123.7.43	JP	{"youtube":["https://youtube.com/@microtechlaboratory1794"],"facebook":["https://facebook.com/p/%E3%83%9E%E3%82%A4%E3%82%AF%E3%83%AD%E3%83%86%E3%83%83%E3%82%AF%E3%83%A9%E3%83%9C%E3%83%A9%E3%83%88%E3%83%AA%E3%83%BC%E6%A0%AA%E5%BC%8F%E4%BC%9A%E7%A4%BE-100063520358877?locale=ja_JP"],"linkedin":["https://linkedin.com/company/mtl-japan"]}	2026-08-12	PHP, MySQL, Nginx, Plesk, Slick, ef.js, HTTP/2, jQuery, Favicon, HubSpot	2026-08-07	TRUE	{"A":["153.123.7.43"],"MX":[{"host":"mtl-co-jp.mail.protection.outlook.com","priority":0}],"NS":["nswx101.wadax-sv.jp","wx110.wadax-sv.jp"],"SOA":{"mname":"wx110.wadax-sv.jp","retry":3600,"rname":"postmaster.mtl.co.jp","expire":1209600,"serial":2026080702,"minimum":10800,"refresh":10800},"TXT":["MS=0EF5D55E686D22DB87F281806DCBA19237853BE1","MS=ms32638454","amazonses:CTttdIqD33oJGNViFCzcYIHxJ7QaHzEN2iV0UIr5ujc=","apple-domain-verification=OHxHeMlJufurq1xh","google-site-verification=ekloYou6HN6I2odLz4XYJ-BDbEHf-zCVZJ-y-mCbCKU","v=spf1 ip4:153.123.7.43 ip4:153.123.7.4 ip4:203.183.229.35 ip4:157.120.115.9 include:spf.protection.outlook.com include:242859039.spf01.hubspotemail.net include:_spf.rectus.co.jp ~all"]}	0.0000000152829	12,750,265	2026-08-18	WHOIS	—	—	2025-10-01	—	{"raw_response":"[ JPRS database provides information on network administration. Its use is ]\r\n[ restricted to network administration purposes. For further information, ]\r\n[ use 'whois -h whois.jprs.jp help'. To suppress Japanese output, add'/e' ]\r\n[ at the end of command, e.g. 'whois -h whois.jprs.jp xxx/e'. ]\r\nDomain Information:\r\na. [Domain Name] MTL.CO.JP\r\ng. [Organization] Microtech Laboratory Inc.\r\nl. [Organization Type] Corporation\r\nm. [Administrative Contact] TC061JP\r\nn. [Technical Contact] HY4200JP\r\np. [Name Server] wx110.wadax-sv.jp\r\np. [Name Server] nswx101.wadax-sv.jp\r\ns. [Signing Key] \r\n[State] Connected (2026/09/30)\r\n[Registered Date] 1998/09/18\r\n[Connected Date] 1998/09/28\r\n[Last Update] 2025/10/01 01:02:21 (JST)"}	Domain is active
zeppelinpm.ru	ru	ru	ICANN	HTTP 200	31.31.198.163	RU	{"vk":["https://vk.com/zeppelinpm"],"telegram":["https://t.me/zeppelin_pm"]}	2026-07-18	PHP, Nginx, ef.js, HTTP/2, amoCRM, jQuery, Favicon, FancyBox, jsDelivr, 1C-Bitrix	2026-08-05	TRUE	{"A":["31.31.198.163"],"MX":[{"host":"mail.zeppelinpm.ru","priority":30},{"host":"mx.zeppelinpm.ru","priority":10}],"NS":["emma.ns.cloudflare.com","jim.ns.cloudflare.com"],"CAA":[{"tag":"issue","flags":0,"value":"comodoca.com"},{"tag":"issuewild","flags":0,"value":"comodoca.com"},{"tag":"issue","flags":0,"value":"digicert.com; cansignhttpexchanges=yes"},{"tag":"issuewild","flags":0,"value":"digicert.com; cansignhttpexchanges=yes"},{"tag":"issue","flags":0,"value":"letsencrypt.org"},{"tag":"issuewild","flags":0,"value":"letsencrypt.org"},{"tag":"iodef","flags":0,"value":"mailto:certbot@zeppelinpm.ru"},{"tag":"issue","flags":0,"value":"pki.goog; cansignhttpexchanges=yes"},{"tag":"issuewild","flags":0,"value":"pki.goog; cansignhttpexchanges=yes"},{"tag":"issue","flags":0,"value":"ssl.com"},{"tag":"issuewild","flags":0,"value":"ssl.com"}],"SOA":{"mname":"emma.ns.cloudflare.com","retry":2400,"rname":"dns.cloudflare.com","expire":604800,"serial":2411083576,"minimum":1800,"refresh":10000},"TXT":["_globalsign-domain-verification=9M45VMq6AZWiBkQrxN1b2JRXfW5qSuejfcBsNUCpaS","google-site-verification=NFOOncNg-Wy1K63CX-GP3RygIbcL1zOFoupz-GwsPO8","v=spf1 ip4:46.34.138.126 -all"]}	0.0000000147997	12,986,670	2026-05-12	WHOIS	2006-05-21	2027-05-21	2026-05-11	RD-RU	{"raw_response":"% TCI Whois Service. Terms of use:\n% https://tcinet.ru/documents/whois_ru_rf.pdf (in Russian)\n% https://tcinet.ru/documents/whois_su.pdf (in Russian)\n\ndomain: ZEPPELINPM.RU\nnserver: emma.ns.cloudflare.com.\nnserver: jim.ns.cloudflare.com.\nstate: REGISTERED, DELEGATED, UNVERIFIED\norg: OOO \"ZEPPELIN. SERVICE MANAGEMENT\"\ntaxpayer-id: 9705044571\nregistrar: RD-RU\nadmin-contact: https://cp.mastername.ru/domain_feedback/\ncreated: 2006-05-21T20:00:00Z\npaid-till: 2027-05-21T21:00:00Z\nfree-date: 2027-06-22\nsource: TCI\n\nLast updated on 2026-05-11T23:18:01Z"}	Domain is active
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Showing 5 of 50 rows · Technologies · Full website tech stack per site: CMS, payments, analytics, frameworks.

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Which websites are using ef.js?

webatla detects every site using ef.js and exports them as one downloadable list, so you can see who relies on this technology and what else runs alongside it.

Open the ef.js 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 ef.js?

webatla detects ef.js on 50 websites, refreshed daily, each with its domain, DNS, WHOIS, IP, country and ranking.

Can I download the list of websites using ef.js?

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 ef.js?

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

What else is in the ef.js technology data?

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

Can I download just the sites using ef.js, or the whole database?

Both. Every site running ef.js 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 ef.js?

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 ef.js 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.