eugenspivak.com

Issued by R3

About this certificate

This digital certificate with serial number 04:f7:b1:37:09:43:78:2a:3d:72:72:90:d9:e3:79:c5:9a:c6 was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. 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=eugenspivak.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:f7:b1:37:09:43:78:2a:3d:72:72:90:d9:e3:79:c5:9a:c6
Serial Number (int): 432734447475981099174531938346849383324358
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 91:80:91:fc:83:2a:64:24:31:cf:50:8b:c3:cf:4b:56:00:0d:2d:d6
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): d1:6b:f8:01:ef:cd:43:ac:94:eb:5d:76:2c:11:8a:54:dd:0f:a2:5b
Fingerprint (sha256): 5d:4e:71:13:5f:b4:b4:27:f1:6d:a2:52:a2:13:e3:10:1d:c6:46:b4:d4:e8:62:85:ac:6b:76:f0:a9:e0:5b:38

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

Revocation information

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

Check the revocation status for certificate eugenspivak.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for eugenspivak.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

eugenspivak.com
www.eugenspivak.com

Other certificates including the domain name eugenspivak.com

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client.eugenspivak.com
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Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2xHUfAgCd5qWVwqQldRJ
2YL/L6c5Z6151hO4zp1j0QAdG2m4cxQQXBFJ2Z5pJU6K6URguST2+Sr23pbx38cQ
HLHavHaPu8TbFGifCbWafvpsjGC7+MVosK8mSc++Oy5/jIsrvHXeLnWr7rE4hQLK
t3EhRZC2RPAkVAiq3fKpjScLhzy1EOqASLs2QwCyPgic3LIW4K35qEplZ356SaXe
B/THF4n12Tyc+bJokGAikCwEng8jo+7sOCGX4MLn2FOV1uL7Uk3Dx+XD72jL1s/p
VJUW+jhWpgVBn7XAp/da7zObcckTYoUC9SIJ0uOL1dgsxWjwnbhvBaqcU0BKVX4K
kQIDAQAB
-----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 432734447475981099174531938346849383324358
 . . . . . . . . [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 2024-03-31 17:55:32 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-29 17:55:31 +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 'eugenspivak.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 27654981096923109227344845641191659354161077905956819461514439915673832274387523101778666077887299527095465004777631215762658444686452002078221042603164447211805034510097798103633478386502280888547813208154466421581450361905314496574879003642147065950071331096033506404364639255608028008717893389685735710957440085855769770532376186646335272657916922192839506729935495711776410218242455972698974384544649766618580742621254223259966544752409293745625695586017224989975616718500749443448552414755880179640427673453526526794741749103208759238788290762032871440935435820896035806651926291329779379619943351047837078915729
 . . . . . . . . . . . . . . . . . . . . [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)
							918091fc832a642431cf508bc3cf4b56000d2dd6
 . . . . . . . . . . . . . . . . [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 (40 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'eugenspivak.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.eugenspivak.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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018e95ddeb03000004030047304502200b0fc27cfbfafcabf640446657e180999c9dddb4cfb591fb08bfb15c3fa220a3022100cc4849d316d696b7d309f41faac6baaeefaf459b4c337fef1c74ae3e8b0a73dc00750076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018e95ddeb3d000004030046304402204f9a56181cbbac6554abc30a0472384124e60dc58b9f4352b3a642feaf8d938a0220176eba2c24d9ae24c2af98eda9afd9defba8997bdaf1b7b8d2848fb67f73fb25
 . . . . [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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