Download websites that use ef.js
7 live sites using ef.js right now
JavaScript frameworks · since 2017 · open source
Preview ef.js site datasets
ef.js 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| zeppelinpm.ru | ru | ru | ICANN | HTTP 200 | 31.31.198.163 | RU | {"vk":["https://vk.com/zeppelinpm"],"telegram":["https://t.me/zeppelin_pm"]} | 2026-09-24 | PHP, Nginx, ef.js, HTTP/2, amoCRM, jQuery, Favicon, FancyBox, jsDelivr, 1C-Bitrix | 0.0000000152773 | 12,860,776 | 2006-05-21 | 2027-05-21 |
| beilie.com | com | com | ICANN | HTTP 200 | — | — | — | 2026-09-28 | ef.js, HTTP/2, Vue.js, jQuery 3.3.1, ECharts | 0.00000000698056 | 8,221,248 | 2005-05-23 | 2027-05-23 |
| zuun.net | net | net | ICANN | HTTP 200 | 104.21.9.151 | US | — | 2026-09-24 | ef.js, HTTP/3, Favicon, Flat UI, Bootstrap, Cloudflare, Open Graph, Animate.css, SweetAlert2 | 0.00000000411566 | 10,030,387 | 2014-10-03 | 2027-10-03 |
| airmaxenerji.com.tr | com.tr | tr | ICANN | HTTP 200 | 94.23.222.147 | FR | {"youtube":["https://youtube.com/@AirmaxEnerji"],"facebook":["https://facebook.com/AirmaxEnerji"],"whatsapp":["https://wa.me/905321348790"],"instagram":["https://instagram.com/airmaxenerji"]} | 2026-09-26 | Google Analytics GA4 G-DQLY3H9RES, Google Tag Manager GTM-TSKKBRXN, PHP 8.3.33, RSS, MySQL, Nginx, Plesk, ef.js, HTTP/2, jQuery | 0.0000000039584 | 8,346,166 | 2025-08-26 | 2027-08-25 |
| amsisfahan.ir | ir | ir | ICANN | HTTP 200 | 5.63.8.178 | IR | {"telegram":["https://t.me/isfima"],"instagram":["https://instagram.com/amsisfahan"]} | 2026-09-27 | Google Analytics GA4 G-KJECDXF2SH, DNN, ef.js, HTTP/2, jQuery, Elfsight, jQuery UI 01, Cloudflare, Highcharts, Google Maps | 0.00000000388307 | 0 | — | — |
| … | … | … | … | … | … | … | … | … | … | … | … | … | … |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| zeppelinpm.ru | ru | ru | ICANN | HTTP 200 | 31.31.198.163 | RU | {"vk":["https://vk.com/zeppelinpm"],"telegram":["https://t.me/zeppelin_pm"]} | 2026-09-24 | PHP, Nginx, ef.js, HTTP/2, amoCRM, jQuery, Favicon, FancyBox, jsDelivr, 1C-Bitrix | 2026-09-19 | 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":"issuewild","flags":0,"value":"digicert.com; cansignhttpexchanges=yes"},{"tag":"issue","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":"issuewild","flags":0,"value":"pki.goog; cansignhttpexchanges=yes"},{"tag":"issue","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":2415173567,"minimum":1800,"refresh":10000},"TXT":["_globalsign-domain-verification=9M45VMq6AZWiBkQrxN1b2JRXfW5qSuejfcBsNUCpaS","google-site-verification=NFOOncNg-Wy1K63CX-GP3RygIbcL1zOFoupz-GwsPO8","v=spf1 ip4:46.34.138.126 -all"]} | 0.0000000152773 | 12,860,776 | 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 |
| beilie.com | com | com | ICANN | HTTP 200 | — | — | — | 2026-09-28 | ef.js, HTTP/2, Vue.js, jQuery 3.3.1, ECharts | 2026-09-27 | TRUE | {"MX":[{"host":"mx.ym.163.com","priority":10}],"NS":["dns29.hichina.com","dns30.hichina.com"],"SOA":{"mname":"dns29.hichina.com","retry":1200,"rname":"hostmaster.hichina.com","expire":86400,"serial":2026082616,"minimum":600,"refresh":3600}} | 0.00000000698056 | 8,221,248 | 2026-05-22 | RDAP | 2005-05-23 | 2027-05-23 | 2026-05-18 | Alibaba Cloud Computing (Beijing) Co., Ltd. | {"raw_response":{"links":[{"rel":"self","href":"https://rdap.verisign.com/com/v1/domain/BEILIE.COM","type":"application/rdap+json","value":"https://rdap.verisign.com/com/v1/domain/BEILIE.COM"},{"rel":"related","href":"https://whois.aliyun.com/rdap/domain/BEILIE.COM","type":"application/rdap+json","value":"https://whois.aliyun.com/rdap/domain/BEILIE.COM"}],"events":[{"eventDate":"2005-05-23T22:48:54Z","eventAction":"registration"},{"eventDate":"2027-05-23T22:48:54Z","eventAction":"expiration"},{"eventDate":"2026-05-18T06:22:36Z","eventAction":"last changed"},{"eventDate":"2026-05-22T12:48:08Z","eventAction":"last update of RDAP database"}],"handle":"161002113_DOMAIN_COM-VRSN","status":["active"],"ldhName":"BEILIE.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/beilie.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/beilie.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.net.cn","type":"text/html","value":"https://whois.aliyun.com/rdap/"}],"roles":["registrar"],"handle":"420","entities":[{"roles":["abuse"],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text",""],["tel",{"type":"voice"},"uri","tel:+86.95187"],["email",{},"text","DomainAbuse@service.aliyun.com"]]],"objectClassName":"entity"}],"publicIds":[{"type":"IANA Registrar ID","identifier":"420"}],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","Alibaba Cloud Computing (Beijing) Co., Ltd."]]],"objectClassName":"entity"}],"secureDNS":{"delegationSigned":false},"nameservers":[{"ldhName":"DNS29.HICHINA.COM","objectClassName":"nameserver"},{"ldhName":"DNS30.HICHINA.COM","objectClassName":"nameserver"}],"objectClassName":"domain","rdapConformance":["rdap_level_0","icann_rdap_technical_implementation_guide_1","icann_rdap_response_profile_1"]}} | Domain is active |
| zuun.net | net | net | ICANN | HTTP 200 | 104.21.9.151 | US | — | 2026-09-24 | ef.js, HTTP/3, Favicon, Flat UI, Bootstrap, Cloudflare, Open Graph, Animate.css, SweetAlert2 | 2026-09-24 | TRUE | {"A":["104.21.9.151","172.67.160.51"],"MX":[{"host":"amir.mx.cloudflare.net","priority":82},{"host":"isaac.mx.cloudflare.net","priority":30},{"host":"linda.mx.cloudflare.net","priority":70}],"NS":["paislee.ns.cloudflare.com","randy.ns.cloudflare.com"],"SOA":{"mname":"paislee.ns.cloudflare.com","retry":2400,"rname":"dns.cloudflare.com","expire":604800,"serial":2415504568,"minimum":1800,"refresh":10000},"TXT":["v=spf1 include:_spf.mx.cloudflare.net ~all"],"AAAA":["2606:4700:3033::6815:997","2606:4700:3035::ac43:a033"],"HTTPS":[{"params":["alpn=h3,h2","ipv4hint=104.21.9.151,172.67.160.51","ech=AEX+DQBBQAAgACDkbcj5PV99YRoi17jXsrNp0J2+mM3t+uvgYSRwQeiNTgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA=","ipv6hint=2606:4700:3033::6815:997,2606:4700:3035::ac43:a033"],"target":"","priority":1}]} | 0.00000000411566 | 10,030,387 | 2026-10-02 | RDAP | 2014-10-03 | 2027-10-03 | 2026-09-03 | Cloudflare, Inc. | {"raw_response":{"links":[{"rel":"self","href":"https://rdap.verisign.com/net/v1/domain/zuun.net","type":"application/rdap+json","value":"https://rdap.verisign.com/net/v1/domain/zuun.net"},{"rel":"related","href":"https://rdap.cloudflare.com/rdap/v1/domain/ZUUN.NET","type":"application/rdap+json","value":"https://rdap.verisign.com/net/v1/domain/zuun.net"}],"events":[{"eventDate":"2014-10-03T18:31:15Z","eventAction":"registration"},{"eventDate":"2027-10-03T18:31:15Z","eventAction":"expiration"},{"eventDate":"2026-09-03T04:03:27Z","eventAction":"last changed"},{"eventDate":"2026-10-01T22:51:13Z","eventAction":"last update of RDAP database"}],"handle":"1878793599_DOMAIN_NET-VRSN","status":["client transfer prohibited"],"ldhName":"ZUUN.NET","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/net/v1/domain/zuun.net"}],"title":"Terms of Service","description":["Service subject to Terms of Use."]},{"links":[{"rel":"glossary","href":"https://icann.org/epp","type":"text/html","value":"https://rdap.verisign.com/net/v1/domain/zuun.net"}],"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/net/v1/domain/zuun.net"}],"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":"PAISLEE.NS.CLOUDFLARE.COM","objectClassName":"nameserver"},{"ldhName":"RANDY.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 |
| airmaxenerji.com.tr | com.tr | tr | ICANN | HTTP 200 | 94.23.222.147 | FR | {"youtube":["https://youtube.com/@AirmaxEnerji"],"facebook":["https://facebook.com/AirmaxEnerji"],"whatsapp":["https://wa.me/905321348790"],"instagram":["https://instagram.com/airmaxenerji"]} | 2026-09-26 | Google Analytics GA4 G-DQLY3H9RES, Google Tag Manager GTM-TSKKBRXN, PHP 8.3.33, RSS, MySQL, Nginx, Plesk, ef.js, HTTP/2, jQuery | 2026-09-28 | TRUE | {"A":["94.23.222.147"],"MX":[{"host":"mail.airmaxenerji.com.tr","priority":10}],"NS":["ns1.airmaxenerji.com.tr","ns2.airmaxenerji.com.tr"],"SOA":{"mname":"ns1.airmaxenerji.com.tr","retry":3600,"rname":"recep.media84.be","expire":1209600,"serial":2026092203,"minimum":10800,"refresh":10800},"TXT":["google-site-verification=AOCkM3wp6PPASmOfeXhbK_HFl2ytBXML2m74oGgdlqQ","v=spf1 a mx ip4:94.23.222.147 include:_spf.maileroo.com ~all"]} | 0.0000000039584 | 8,346,166 | 2026-08-24 | WHOIS | 2025-08-26 | 2027-08-25 | — | Webhosting Bilişim Teknolojileri Anonim Şirketi | {"raw_response":"** Domain Name: airmaxenerji.com.tr\nDomain Status: Active\nFrozen Status: -\nTransfer Status: The domain is LOCKED to transfer.\n\n** Registrant:\n\nHidden upon user request\nHidden upon user request\nHidden upon user request\nHidden upon user request\n\n\n** Registrar:\nNIC Handle\t\t: wbt15\nOrganization Name\t: Webhosting Bilişim Teknolojileri Anonim Şirketi\nAddress\t\t\t: Meclis Mahallesi Derviş Sk. Fuat\n\t\t\t Ozal Apt No 38 1 Sancaktepe\n\t\t\t 00000 İstanbul Türkiye\nPhone\t\t\t: 90-216-6064445\nFax\t\t\t: 90-216-6064445 \n\n\n** Domain Servers:\nns306538.ip-94-23-222.eu\nsdns2.ovh.net\n\n\n** Additional Info:\nCreated on..............: 2025-Aug-26.\nExpires on..............: 2027-Aug-25.\n\n\n** Whois Server:\nLast Update Time: 2026-08-24T01:32:21+03:00"} | Domain is active |
| amsisfahan.ir | ir | ir | ICANN | HTTP 200 | 5.63.8.178 | IR | {"telegram":["https://t.me/isfima"],"instagram":["https://instagram.com/amsisfahan"]} | 2026-09-27 | Google Analytics GA4 G-KJECDXF2SH, DNN, ef.js, HTTP/2, jQuery, Elfsight, jQuery UI 01, Cloudflare, Highcharts, Google Maps | 2026-09-30 | TRUE | {"A":["5.63.8.178"],"NS":["elle.ns.cloudflare.com","rajeev.ns.cloudflare.com"],"SOA":{"mname":"elle.ns.cloudflare.com","retry":2400,"rname":"dns.cloudflare.com","expire":604800,"serial":2414583779,"minimum":1800,"refresh":10000}} | 0.00000000388307 | 0 | — | — | — | — | — | — | — | — |
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The ef.js dataset
Every site we've detected as running ef.js, with version, hosting, country, TLD and traffic rank.
ef.js lives inside 2 datasets
ef.js detection is part of Technologies (€159/mo) and All data (€599/mo). Buy either to filter the full 7-site list, or grab a free preview first.
About ef.js
The vendor column for this framework is empty, and the emptiness is itself a finding. ef.js arrives with no company, no support contract and no sales motion behind it, only a MIT licence and a maintainer, which changes what a detection means. A site running the framework was not sold anything, so every match records a developer's own decision about how to build a page.
Small JavaScript frameworks projects compete on a single axis, which is how little they cost to load. Our earliest sighting is 2017, in the middle of the stretch when bundle size became an argument in its own right and a crop of minimal alternatives to the large frameworks appeared. Written in JavaScript and consumed as a runtime script, the framework leaves a trace our crawler can match at all, which is more than can be said for libraries that vanish entirely into a build step.
As of October 2026 we detect ef.js on 7 sites, and a count in that range needs handling with care. Frameworks without a company behind them get bundled, renamed, vendored into a repository and served from the site owner's own domain, and each of those breaks a fingerprint. The number is a floor across the subset of sites that load the library in a recognizable form, and the distance between that floor and the truth is not something we can put a bound on.
Because the population is small, the list is the whole point. Nobody needs a report to be told that a niche framework is niche. What a researcher can actually do with the export is get the domains, look at what else runs on them, and ask questions a lookup cannot pose, such as whether the users concentrate in one country, whether they are personal projects or products with customers, and whether the set is growing or being quietly rewritten into something else. For a maintainer the file is the closest thing to a user list that will ever exist. For a competitor it is a short and specific map of who could be talked to.
Frequently asked questions
How many websites use ef.js?
webatla detects ef.js on 7 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.
Get the full list of websites using ef.js
Pick the dataset that covers what you need. Each one includes ef.js and downloads as JSONL, rebuilt daily.
Full website tech stack per site: CMS, payments, analytics, frameworks.
Everything we have, in a single package. The full webatla universe.
Want to compare every dataset side by side? Visit the pricing page
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