k1yarns.com

Issued by R3

About this certificate

This digital certificate with serial number 03:22:e6:38:50:19:7c:54:1a:25:b2:fa:fc:ad:21:ab:eb:b2 was issued on by Let's Encrypt.

This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.


We have idenified some issues with this certificate:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=k1yarns.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 03:22:e6:38:50:19:7c:54:1a:25:b2:fa:fc:ad:21:ab:eb:b2
Serial Number (int): 273212473102859206468195400248569753234354
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 4a:55:88:23:92:97:7d:92:0a:e6:56:93:3e:54:8d:3d:ea:8e:67:0e
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): ea:ef:7e:6f:f1:7c:87:72:65:2d:2f:40:1a:9e:81:f1:98:1d:db:8e
Fingerprint (sha256): 51:e5:8f:97:4c:9b:54:d7:69:f0:bc:d2:ee:b6:02:8e:3e:ae:8f:fb:82:74:69:a3:0a:e9:25:87:73:15:ad:df

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate k1yarns.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for k1yarns.com

Public Key Algorithm

RSA

Key Size

2048

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication
Client Authentication

Extensions

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

k1yarns.com

Other certificates including the domain name k1yarns.com

(limited to 100 certificates)
k1yarns.com
k1yarns.com
k1yarns.com
k1yarns.com
k1yarns-com.karimaru.rakusaba.jp
k1yarns.com
k1yarns.com
k1yarns-com.karimaru.rakusaba.jp
k1yarns-com.karimaru.rakusaba.jp
k1yarns-com.karimaru.rakusaba.jp
k1yarns.com
k1yarns-com.karimaru.rakusaba.jp
k1yarns-com.karimaru.rakusaba.jp
k1yarns-com.karimaru.rakusaba.jp
k1yarns.com
k1yarns-com.karimaru.rakusaba.jp

Certificate

The complete raw certificate details for k1yarns.com in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAr/XUbBzyFKRMJ0vYSpqw
4Wy2Y2eV+vSCix5TcGNxTR9tB9EX+hNdC7/zlKJAGUj9ZTSfbJO27HvleVN3D5id
hIFxfP2tdfAp4OxQkf4a4nqKXZzPJpTlDs2LQNjKcwszaxKYCMzGThieeBm7jUiW
L6fuAX+sCsBIO0frJ9klq77f7NplfwJ3FcKWFyvMo71rtFZCoLt7dfgKim+SBGYn
agfNe8mmxy4ipqvWtGzMO3cdcKdiRijMzZG1upRjhoggHI/vS2JkWP4bNoZdGCAv
axriEoBdS5K9LqHQP6GurVXM5B3kuJkMBN+OmnrXxvcnWbYY6JwAO3KZ1+Vbi2ry
PQIDAQAB
-----END PUBLIC KEY-----

ASN.1 decoded

 [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2
 . . . . . . . . [c:0|t:2|false] INTEGER 273212473102859206468195400248569753234354
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-05 07:54:57 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-04 07:54:56 +0000 UTC
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'k1yarns.com'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption)
 . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 22212926549002050284514280201842508005383112295076716543860080304139230312954791538218521192151646276641171821312132057322186382907608557833044633266717882159925486793295035814217429765932256501274586894185551838600871192630653836784258262551113370226315622875011745484089040586643464499099050743492573864505099283671246997769884397086860391780353004063554110072482938347723151697605680849491567586015973396283841827917163130476820767770921992844445933163852056389828001821416273072794242683658107471620900284696956025332534027970481622290746322469912862466641257099739053380014933010211544416170231702695133772968509
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537

 . . . . . . . . [c:2|t:3|true] ORAddress 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits)
							05a0
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							4a55882392977d920ae656933e548d3dea8e670e
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (73 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r3.o.lencr.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r3.i.lencr.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (15 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'k1yarns.com'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (12 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018ead77de6c0000040300483046022100929d219d21ac2c529a0925f56a5849749fb42dd99587a7701769f4cc54b80cfb022100af21d52191ac503de010d65f1a56679ca94beedac8d5a08089237760f0aa1d7a007500eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018ead77de780000040300463044022006c090ff432a524ad4868e19e18602e80861bd1ad109dbe324015b8e48e3580e022056e135184e45ec2512dc36d3fe24515e49f9078d09e42946f080b61126cdcc33
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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