cozumicin.biz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:67:36:bb:84:3e:1d:a3:48:21:5a:ba:a9:1b:15:51:50:0d was issued on by Let's Encrypt.

With 3 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=cozumicin.biz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:67:36:bb:84:3e:1d:a3:48:21:5a:ba:a9:1b:15:51:50:0d
Serial Number (int): 383570979473381966011850491487846606655501
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: cb:3c:55:35:63:1a:e3:91:d0:67:67:d6:9b:38:1d:a2:c1:c6:fe:c4
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 97:07:a8:3c:d1:31:dd:55:cb:64:84:f6:32:18:10:b9:13:94:be:e3
Fingerprint (sha256): 0e:24:01:46:01:40:ff:c5:98:88:cb:d9:8c:6c:50:03:c6:95:8b:0c:01:66:1c:e2:55:5a:58:65:1a:71:c6:31

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate cozumicin.biz

3

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for cozumicin.biz

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

cozumicin.biz
mail.cozumicin.biz
www.cozumicin.biz

Other certificates including the domain name cozumicin.biz

(limited to 100 certificates)
cozumicin.biz
cozumicin.biz
cozumicin.biz
cozumicin.biz
cozumicin.biz
cozumicin.biz
cozumicin.biz
cozumicin.biz
cozumicin.biz
cozumicin.biz
cozumicin.biz
cozumicin.biz
cozumicin.biz
cozumicin.biz

Certificate

The complete raw certificate details for cozumicin.biz in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnzcpgeqPMVeBnuzU42QY
a6KRMDIwdIVdCKYfoatvuD4HgQBZ1eZ9aDEA8W1OE5NVe4dGi7EwfJZ5oiZER1fb
igbd9sbPCjUUoi6eqfL/TlgfsRG+u+++PPbZDkn0XajW92UZO6oqYleRTZyOvdqZ
LHalkhURi1tBwDw9ANNLBLUJm2jipfS4IGtd8p9H9NxKwRIMgisy/AYHJ2i4sIBu
JVn6IAIziYJpqvkujSPVv+1Q1bIHCGF6eoHG4N7KMUp9QnWrj4XFQlJEtwbhnHvt
ERfaIWoARxL0jItMdSobUNgRdU3DY10E6bS7g8FBC65ABIM3Ns6XgNOV1qeNJlBT
AwIDAQAB
-----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 383570979473381966011850491487846606655501
 . . . . . . . . [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 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-07-18 20:52:52 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-10-16 20:52:52 +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 'cozumicin.biz'
 . . . . . . . . [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 20099091953966648449852875132183080772821961311017647168256732023970015325867289691445954330664975623743242497170772148529146770252515694309942803349676518253210701658669057352083382659337465741319828807150629696304655473035378426752509637636179466022250691196499940374150025960585106385910021365845242360234102104512146066594617863887814195037068166863242491127194193539267117684068566022539270633512883771130065281624415991801098780596450839670781775609014873867213201984514338100722667052925319809712439977529476826546605028794374890603440344821666760976302398236508504654912207552978776160870123738325617598288643
 . . . . . . . . . . . . . . . . . . . . [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)
							cb3c5535631ae391d06767d69b381da2c1c6fec4
 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 (56 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cozumicin.biz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.cozumicin.biz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cozumicin.biz'
 . . . . . . . . . . . . . . . . [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 (69 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 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . [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)
							00ef007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016c0712dd040000040300473045022100ffd2f840f9097325c9321251506b168af740ee99c5ac1bfd9b5eecdb8a968224022048640c158e6f1bbd1c46217b0f5352b7ada156d462b04b8fe47d04af0dfa9cc2007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016c0712dcf60000040300463044022034437d389fb954b2520818a35313c13263e1b24031a80272b67de9b4a415c1c5022018943ff022d2430b826edcac31f40469513851e126096b945647a5bde1f34180
 . . . . [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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