Let's Encryptを使用しているウェブサイトをダウンロード
現在、53,542サイトがLet's Encryptを使用中です。
Security · Internet Security Research Group 提供 · 2016年から · Open Source
Let's Encrypt について
webatla は Let's Encrypt を使用する稼働中のウェブサイトを53,542サイト追跡しており、これは弊社がインデックスするすべてのサイトの0.0% に相当します。 Let's Encrypt を使用しているウェブサイトの全リストをダウンロード 毎日更新される JSONL エクスポートとして提供します。各レコードには、ドメインに加えて DNS、WHOIS、IP アドレス、ホスティング国、グローバルランクが含まれます。
Let's Encryptは、ウェブサイトがHTTPSを有効化できるようにTLS/SSL証明書を提供する、無料で自動化されたオープンな認証局(CA)です。2016年にInternet Security Research Group(ISRG)によって開始され、Mozilla、Electronic Frontier Foundation、Ciscoといった主要なスポンサーの支援を受けており、暗号化されたウェブトラフィックを有効にする際の障壁を劇的に下げました。
Let's EncryptはACMEプロトコルを用いて証明書の発行と更新を自動化しており、サーバー管理者やホスティングプロバイダーは手作業を介さずに証明書を取得、更新できます。数億件のウェブサイトに証明書を発行しており、証明書の発行数で世界最大の認証局となっています。このサービスは公益事業として完全に無償で提供されています。
概要
Let's Encrypt サイトのデータベースプレビュー
Let's Encrypt の検出は Technologies 列の値です。2つのデータセットに含まれており、切り替えて内容を比較できます。
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| zachofalltrades.net | net | net | ICANN | HTTP 200 | 18.223.91.181 | US | {"github":["https://github.com/zachofalltrades"],"facebook":["https://facebook.com/zach.shelton"],"linkedin":["https://linkedin.com/in/zachofalltrades"],"x-twitter":["https://twitter.com/zachof33trades"]} | 2026-07-18 | Let's Encrypt, Google PageSpeed 1.9.32.14, Google Workspace, Apache HTTP Server, Google Site Verification | 0.000000621178 | 13,967,096 | 2001-10-25 | 2028-10-25 |
| sidar.org | org | org | ICANN | HTTP 200 | 81.4.103.30 | NL | {"facebook":["https://fb.me/e/FTlZd7DoMar%C3%ADa","https://facebook.com/Fundacion.Sidar"],"x-twitter":["https://twitter.com/fundacion_sidar"]} | 2026-08-17 | PHP 5.4.45, Favicon, mod_fastcgi, Let's Encrypt, Google Font API, Google Workspace, Apache HTTP Server | 0.000000171708 | 16,799,374 | 1999-07-14 | 2028-07-14 |
| ijea.org | org | org | ICANN | HTTP 200 | 143.95.238.9 | US | {"facebook":["https://facebook.com/IJEAresearch"]} | 2026-08-06 | HTTP/2, jQuery, Let's Encrypt, Apache HTTP Server | 0.0000000578415 | 14,223,255 | 2007-06-17 | 2027-06-17 |
| ishelly.com | com | com | ICANN | HTTP 200 | 35.163.71.170 | US | {"facebook":["https://facebook.com/pages/iShelly/376650165762948"]} | 2026-08-06 | jQuery, Favicon, GoDaddy, Mailgun, FancyBox, Open Graph, Backbone.js, Font Awesome 4.7.0, Let's Encrypt, Microsoft 365 | 0.0000000460972 | 16,688,203 | 2012-11-07 | 2026-11-07 |
| opengl-redbook.com | com | com | ICANN | HTTP 200 | 72.14.179.107 | US | {"github":["https://github.com/openglredbook/examples"]} | 2026-08-14 | Nginx, Let's Encrypt | 0.0000000443775 | 13,329,553 | 2003-06-25 | 2027-06-25 |
| … | … | … | … | … | … | … | … | … | … | … | … | … | … |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| zachofalltrades.net | net | net | ICANN | HTTP 200 | 18.223.91.181 | US | {"github":["https://github.com/zachofalltrades"],"facebook":["https://facebook.com/zach.shelton"],"linkedin":["https://linkedin.com/in/zachofalltrades"],"x-twitter":["https://twitter.com/zachof33trades"]} | 2026-07-18 | Let's Encrypt, Google PageSpeed 1.9.32.14, Google Workspace, Apache HTTP Server, Google Site Verification | 2026-08-17 | TRUE | {"A":["18.223.91.181"],"MX":[{"host":"aspmx.l.google.com","priority":10}],"NS":["ns-116-a.gandi.net","ns-190-b.gandi.net","ns-9-c.gandi.net"],"SOA":{"mname":"ns1.gandi.net","retry":3600,"rname":"hostmaster.gandi.net","expire":604800,"serial":1786579200,"minimum":10800,"refresh":10800},"TXT":["google-site-verification=FrmXLfnglXgb9NjAbXw6UuRjYh7uRo77t9YZmk3mGtg"]} | 0.000000621178 | 13,967,096 | 2026-02-25 | RDAP | 2001-10-25 | 2028-10-25 | 2026-02-25 | Gandi SAS | 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| sidar.org | org | org | ICANN | HTTP 200 | 81.4.103.30 | NL | {"facebook":["https://fb.me/e/FTlZd7DoMar%C3%ADa","https://facebook.com/Fundacion.Sidar"],"x-twitter":["https://twitter.com/fundacion_sidar"]} | 2026-08-17 | PHP 5.4.45, Favicon, mod_fastcgi, Let's Encrypt, Google Font API, Google Workspace, Apache HTTP Server | 2026-08-07 | TRUE | {"A":["81.4.103.30"],"MX":[{"host":"alt1.aspmx.l.google.com","priority":20},{"host":"alt2.aspmx.l.google.com","priority":30},{"host":"aspmx.l.google.com","priority":10},{"host":"aspmx2.googlemail.com","priority":40},{"host":"aspmx3.googlemail.com","priority":50}],"NS":["ns59.worldnic.com","ns60.worldnic.com"],"SOA":{"mname":"NS59.WORLDNIC.COM","retry":3600,"rname":"namehost.WORLDNIC.COM","expire":604800,"serial":116050617,"minimum":3600,"refresh":10800}} | 0.000000171708 | 16,799,374 | 2026-07-13 | RDAP | 1999-07-14 | 2028-07-14 | 2026-05-20 | Network Solutions, LLC | {"raw_response":{"links":[{"rel":"related","href":"https://rdap.networksolutions.com/rdap/domain/sidar.org","type":"application/rdap+json","value":"https://rdap.publicinterestregistry.org/rdap/domain/sidar.org"},{"rel":"self","href":"https://rdap.publicinterestregistry.org/rdap/domain/sidar.org","type":"application/rdap+json","value":"https://rdap.publicinterestregistry.org/rdap/domain/sidar.org"}],"events":[{"eventDate":"2028-07-14T22:53:36Z","eventAction":"expiration"},{"eventDate":"1999-07-14T22:53:36Z","eventAction":"registration"},{"eventDate":"2026-05-20T06:34:53.543Z","eventAction":"last changed"},{"eventDate":"2026-07-13T06:14:39.733Z","eventAction":"last update of RDAP database"}],"status":["client transfer prohibited"],"ldhName":"sidar.org","notices":[{"links":[{"rel":"terms-of-service","href":"https://thenew.org/org-people/about-pir/policies/","type":"text/html","value":"https://rdap.publicinterestregistry.org/rdap/domain/sidar.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. 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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. 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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":"glossary","href":"https://icann.org/epp","type":"application/rdap+json","value":"https://rdap.publicinterestregistry.org/rdap/domain/ijea.org"}],"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":"application/rdap+json","value":"https://rdap.publicinterestregistry.org/rdap/domain/ijea.org"}],"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.publicinterestregistry.org/rdap/entity/69","type":"application/rdap+json","value":"https://rdap.publicinterestregistry.org/rdap/entity/69"},{"rel":"about","href":"https://opensrs.rdap.tucows.com/","type":"application/rdap+json","value":"https://opensrs.rdap.tucows.com/"}],"roles":["registrar"],"handle":"69","entities":[{"roles":["abuse"],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text",""],["tel",{"type":"voice"},"uri","tel:+1.4165350123"],["email",{},"text","domainabuse@tucows.com"]]],"objectClassName":"entity"}],"publicIds":[{"type":"IANA Registrar ID","identifier":"69"}],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","Tucows Domains Inc."]]],"objectClassName":"entity"}],"redacted":[{"name":{"type":"Registry Domain ID"},"method":"removal","prePath":"$.handle","pathLang":"jsonpath"}],"secureDNS":{"maxSigLife":1,"delegationSigned":false},"nameservers":[{"handle":"fa056e34a15a49b8b79ad3d21a4e2096-LROR","status":["associated"],"ldhName":"ns1.gopher.arvixe.com","unicodeName":"ns1.gopher.arvixe.com","objectClassName":"nameserver"},{"handle":"c4d818fdd78b4e4c8be0a74032eccb36-LROR","status":["associated"],"ldhName":"ns2.gopher.arvixe.com","unicodeName":"ns2.gopher.arvixe.com","objectClassName":"nameserver"}],"unicodeName":"ijea.org","objectClassName":"domain","rdapConformance":["rdap_level_0","icann_rdap_response_profile_1","icann_rdap_technical_implementation_guide_1","redacted"]}} | Domain is active |
| ishelly.com | com | com | ICANN | HTTP 200 | 35.163.71.170 | US | {"facebook":["https://facebook.com/pages/iShelly/376650165762948"]} | 2026-08-06 | jQuery, Favicon, GoDaddy, Mailgun, FancyBox, Open Graph, Backbone.js, Font Awesome 4.7.0, Let's Encrypt, Microsoft 365 | 2026-08-12 | TRUE | {"A":["35.163.71.170"],"MX":[{"host":"ishelly-com.mail.protection.outlook.com","priority":0},{"host":"mxa.mailgun.org","priority":10},{"host":"mxb.mailgun.org","priority":10}],"NS":["ns17.domaincontrol.com","ns18.domaincontrol.com"],"SOA":{"mname":"ns17.domaincontrol.com","retry":7200,"rname":"dns.jomax.net","expire":604800,"serial":2024010303,"minimum":3600,"refresh":28800},"TXT":["NETORGFT8947953.onmicrosoft.com","google-site-verification=NA2Vo6hb-IbYwNaks280cfUGTSo8tAI-SaFH9NTzbJ0","google-site-verification=Xd6eXda2mDhYdCLbzoq8jg2phQQ7AlcoPX5dqz58RzA","google-site-verification=bcdGaJMZJThfuGgoB4gJ_TVNVW8uaAO4wn4LaunCD8w","google-site-verification=mJZ0B1zTusCkNLfquuqwKnsRkPwnQTQilcxd7a3hoKU","google-site-verification=vEciJiTpwFV3lRoPMZJ6Krh9caVrvSPoi9KL_aeE660","google-site-verification=zu4j_zD0KTI1tviNTS-elpsA5OBk9Mo3EU4HDjHazt4","v=msv1 t=d81360c6a40fe689a2e0a97713c10c","v=spf1 include:mailgun.org ~all","v=spf1 include:secureserver.net -all"]} | 0.0000000460972 | 16,688,203 | 2025-11-08 | RDAP | 2012-11-07 | 2026-11-07 | 2025-11-08 | GoDaddy.com, LLC | {"raw_response":{"links":[{"rel":"self","href":"https://rdap.verisign.com/com/v1/domain/ISHELLY.COM","type":"application/rdap+json","value":"https://rdap.verisign.com/com/v1/domain/ISHELLY.COM"},{"rel":"related","href":"https://rdap.godaddy.com/v1/domain/ISHELLY.COM","type":"application/rdap+json","value":"https://rdap.godaddy.com/v1/domain/ISHELLY.COM"}],"events":[{"eventDate":"2012-11-07T02:46:35Z","eventAction":"registration"},{"eventDate":"2026-11-07T02:46:35Z","eventAction":"expiration"},{"eventDate":"2025-11-07T22:00:27Z","eventAction":"last changed"},{"eventDate":"2025-11-08T18:11:46Z","eventAction":"last update of RDAP database"}],"handle":"1757588651_DOMAIN_COM-VRSN","status":["client delete prohibited","client renew prohibited","client transfer prohibited","client update prohibited"],"ldhName":"ISHELLY.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/ishelly.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/ishelly.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.godaddy.com","type":"text/html","value":"https://rdap.godaddy.com/v1/"}],"roles":["registrar"],"handle":"146","entities":[{"roles":["abuse"],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text",""],["tel",{"type":"voice"},"uri","tel:480-624-2505"],["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"}],"secureDNS":{"delegationSigned":false},"nameservers":[{"ldhName":"NS17.DOMAINCONTROL.COM","objectClassName":"nameserver"},{"ldhName":"NS18.DOMAINCONTROL.COM","objectClassName":"nameserver"}],"objectClassName":"domain","rdapConformance":["rdap_level_0","icann_rdap_technical_implementation_guide_1","icann_rdap_response_profile_1"]}} | Domain is active |
| opengl-redbook.com | com | com | ICANN | HTTP 200 | 72.14.179.107 | US | {"github":["https://github.com/openglredbook/examples"]} | 2026-08-14 | Nginx, Let's Encrypt | 2026-08-18 | TRUE | {"A":["72.14.179.107"],"MX":[{"host":"mail.opengl-redbook.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":"webmaster.opengl-redbok.com","expire":1209600,"serial":2012032616,"minimum":86400,"refresh":14400}} | 0.0000000443775 | 13,329,553 | 2026-07-05 | RDAP | 2003-06-25 | 2027-06-25 | 2026-06-24 | Tucows Domains Inc. | {"raw_response":{"links":[{"rel":"self","href":"https://rdap.verisign.com/com/v1/domain/OPENGL-REDBOOK.COM","type":"application/rdap+json","value":"https://rdap.verisign.com/com/v1/domain/OPENGL-REDBOOK.COM"},{"rel":"related","href":"https://opensrs.rdap.tucows.com/domain/OPENGL-REDBOOK.COM","type":"application/rdap+json","value":"https://opensrs.rdap.tucows.com/domain/OPENGL-REDBOOK.COM"}],"events":[{"eventDate":"2003-06-25T06:35:00Z","eventAction":"registration"},{"eventDate":"2027-06-25T06:35:00Z","eventAction":"expiration"},{"eventDate":"2026-06-24T08:34:05Z","eventAction":"last changed"},{"eventDate":"2026-07-05T02:08:54Z","eventAction":"last update of RDAP database"}],"handle":"99647547_DOMAIN_COM-VRSN","status":["client transfer prohibited","client update prohibited"],"ldhName":"OPENGL-REDBOOK.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/opengl-redbook.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/opengl-redbook.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.tucows.com","type":"text/html","value":"https://opensrs.rdap.tucows.com/"}],"roles":["registrar"],"handle":"69","entities":[{"roles":["abuse"],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text",""],["tel",{"type":"voice"},"uri","tel:+1.4165350123"],["email",{},"text","domainabuse@tucows.com"]]],"objectClassName":"entity"}],"publicIds":[{"type":"IANA Registrar ID","identifier":"69"}],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","Tucows Domains 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"}],"objectClassName":"domain","rdapConformance":["rdap_level_0","icann_rdap_technical_implementation_guide_1","icann_rdap_response_profile_1"]}} | Domain is active |
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Let's Encrypt データセット
Let's Encrypt を実行していると検出したすべてのサイトを、バージョン、ホスティング、国、TLD、トラフィックランクとともに収録しています。
Let's Encrypt は 2件のデータセットに含まれています
Let's Encrypt の検出は Technologies (€159/月) と All data (€599/月). の一部です。どちらかを購入すると、53,542サイトの全リストを絞り込めます。先に無料プレビューを取得することもできます。
Let's Encrypt を使用しているウェブサイトは?
webatla は Let's Encrypt を使用しているすべてのサイトを検出し、ダウンロード可能な1つのリストとしてエクスポートします。これにより、このテクノロジーに依存しているのが誰か、また他に何が併用されているかを確認できます。
Let's Encrypt のテクノロジーデータセットを開くと、採用状況を国や TLD 別に分解したり、競合テクノロジーと比較したり、新規ドメインの推移を追跡したりできます。
よくある質問
Let's Encryptを使用しているウェブサイトはいくつありますか?
webatlaは54K件のウェブサイトでLet's Encryptを検出しており、毎日更新されます。各ウェブサイトにはドメイン、DNS、WHOIS、IP、国、ランキングが含まれます。
Let's Encryptを使用しているウェブサイトのリストをダウンロードできますか?
はい、構造化されたJSONL形式で提供しています。まずは無料サンプルをお試しください。
各サイトにはどのような情報が含まれ、どのくらいの頻度で更新されますか?
ドメイン、DNS、RDAP/WHOIS、完全な技術スタック、IPと国、PageRank、Harmonicが含まれ、毎日再検出、再エクスポートされます。
Let's Encryptを使用しているウェブサイトはどうやって見つけますか?
Technologiesデータセットを購入すると、Let's Encryptを使用していると検出したドメインの完全な一覧をダウンロードできます。毎日再エクスポートされます。
Let's Encryptの技術データには他に何が含まれますか?
各行には、同じサイトで使用されている他の技術と並べてLet's Encryptが記載され、さらにDNS、WHOIS、IP、国、ランキングも含まれます。
Let's Encryptを使用しているサイトだけをダウンロードできますか、それともデータベース全体もダウンロードできますか?
どちらも可能です。Let's Encryptを使用しているすべてのサイトは、1つのダウンロード可能なファイルであるTechnologiesデータセットに含まれています。または、データベース全体を対象としたAll dataを購入すると、すべてのドメインの技術情報に加えて識別情報、ランキング、DNS、RDAP/WHOISを1つのファイルにまとめて入手できます。毎日更新される最新のエクスポートです。
Let's Encryptを使用しているウェブサイトのリストはどうやってダウンロードしますか?
手順は3つです。(1)まず無料の10,000行サンプルでスキーマを確認し、(2)Technologiesデータセットを購入し、(3)Let's Encryptを実行していると検出した全ドメインのリストをJSON Linesファイルとしてダウンロードします。これは毎日再エクスポートされるため、アクセス期間中はいつでも最新のリストを再ダウンロードできます。各行にはドメインに加え、DNS、WHOIS、IP、ホスティング国、ランクが含まれます。
Let's Encryptを使用しているウェブサイトの全リストを入手
必要な内容をカバーするデータセットを選んでください。各データセットにはLet's Encryptが含まれ、JSONL形式でダウンロードでき、毎日再構築されます。
すべてのデータセットを並べて比較したいですか。 料金ページを見る