cozumicin.biz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:87:11:3a:e1:2e:38:2e:f3:19:53:af:01:0c:1b:14:38:91 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): 04:87:11:3a:e1:2e:38:2e:f3:19:53:af:01:0c:1b:14:38:91
Serial Number (int): 394410165857717861960314945995200506640529
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: ca:4d:f2:41:8d:6a:79:f0:ed:94:5e:34:81:a0:b8:e9:43:06:3c:d6
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 15:04:fe:d4:fc:4c:70:70:89:27:b3:08:b3:81:30:23:c1:3b:84:64
Fingerprint (sha256): fc:56:9e:e2:85:4c:9f:6d:f8:12:99:ef:61:7f:3d:e4:01:95:bc:08:04:85:f3:d9:2d:7d:37:6d:78:8b:4e:1d

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-----
MIIFejCCBGKgAwIBAgISBIcROuEuOC7zGVOvAQwbFDiRMA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA5MTcyMDUyMDdaFw0x
OTEyMTYyMDUyMDdaMBgxFjAUBgNVBAMTDWNvenVtaWNpbi5iaXowggEiMA0GCSqG
SIb3DQEBAQUAA4IBDwAwggEKAoIBAQDTM5/+YlFUHlfTkG5a97nRYox23bQazK90
1hw8Ab2GGz4p8Uuspp+o5OREJxohdolubsMe2wEKtSl2M9r0Gp3v5dcu9tx5kR8B
iBrFpe+aUyvWGRQDr8mEvN+CmE+Vggvny8HFIsd2p18IkZ26joUrwNY5cqcGi/D3
f8I2h1OBMb3xyjdfUU4JieOEbpWHE0NQR3KKTF1wkYOZJ6b5DvLNc+TkG+YrybCz
jzhsTftEt6bx9AElfy2r2Sfjeuf94ulAGShYx0paRLxcS0CvD/9eVXijbz3eTD2E
XhuJLufA+kZyTClzSMUFFtYsoJ1P1niMNa4mduuyJrL16Hy/R4XbAgMBAAGjggKK
MIIChjAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUF
BwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFMpN8kGNannw7ZReNIGguOlDBjzW
MB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsGAQUFBwEBBGMw
YTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNlbmNyeXB0Lm9y
ZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNlbmNyeXB0Lm9y
Zy8wPwYDVR0RBDgwNoINY296dW1pY2luLmJpeoISbWFpbC5jb3p1bWljaW4uYml6
ghF3d3cuY296dW1pY2luLmJpejBMBgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEE
AYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9y
ZzCCAQUGCisGAQQB1nkCBAIEgfYEgfMA8QB2AHR+2oMxrTMQkSGcziVPQnDCv/1e
QiAIxjc1eeYQe8xWAAABbUE2GYYAAAQDAEcwRQIgSvcdfynoXyz4PX2ZJnnAu5M5
3/zKnzfofy0vJmSQnJECIQDea3PqVkaOEfe4LNwmOXsU0Ozt4hpdDPUhbVLNx+Os
JAB3AGPy283oO8wszwtyhCdXazOkjWF3j711pjixx2hUS9iNAAABbUE2G2EAAAQD
AEgwRgIhAMChbqLb9DriYBDVy8HilNAqtl7clxVLI9M4zODwHg33AiEAkeSSCNrq
YhUXE0SOKqB3kYR0rG8FpLvvn3ShdVeSSqowDQYJKoZIhvcNAQELBQADggEBAHEj
vav/NfID2PZsLFwxraUPIfrhFuoPixyjD0UwIBgZqUPDF0nbczqznXkB13O19smf
gqYELsFTF/kqL3sTY75h05lUxlaKv4eneo9AvOHaSpMNXRFbq0hz0LBBYWMIXuAC
PTUSLvmeohelw33FBbJmAQymrLslgmYnmb9fzMlKB+YrLZo+oY9/rKdp24uRbc1Q
Cg+JWy24IKmIymuBWfBamX+wZxPgJeqLDc/AlI7Gqjr0PgzEx+1/ymNJKj2AoZOG
TIIGhPkvNBBoC1uYrQKN8SU8bj+ZxKYYplLPejNrL5E9Pr1pDibpO9LllFFEHsPn
38ueUdjMq5HtBTywokw=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0zOf/mJRVB5X05BuWve5
0WKMdt20GsyvdNYcPAG9hhs+KfFLrKafqOTkRCcaIXaJbm7DHtsBCrUpdjPa9Bqd
7+XXLvbceZEfAYgaxaXvmlMr1hkUA6/JhLzfgphPlYIL58vBxSLHdqdfCJGduo6F
K8DWOXKnBovw93/CNodTgTG98co3X1FOCYnjhG6VhxNDUEdyikxdcJGDmSem+Q7y
zXPk5BvmK8mws484bE37RLem8fQBJX8tq9kn43rn/eLpQBkoWMdKWkS8XEtArw//
XlV4o2893kw9hF4biS7nwPpGckwpc0jFBRbWLKCdT9Z4jDWuJnbrsiay9eh8v0eF
2wIDAQAB
-----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 394410165857717861960314945995200506640529
 . . . . . . . . [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 2019-09-17 20:52:07 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-16 20:52:07 +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 26661739571983549055383182512732114437735635429313566955017347061813016175738726643923579546646785906533214301622968554438832113023831540240307319198134893277892555327001981959105129233612202107554163429715272413973902084630885803808348931024274639562360459954218446969261458823169009233862010280112295680648114586583288483255025342123487203650737321029766273112403396962013209405271097944490762740990237875709825464891410277744853321817438609941174620981036487706519250484447267290702072057188692735046055357945144123862543174835967925770080408749751479666194236903439032043260151070956976927995939814604886239577563
 . . . . . . . . . . . . . . . . . . . . [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)
							ca4df2418d6a79f0ed945e3481a0b8e943063cd6
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007600747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016d41361986000004030047304502204af71d7f29e85f2cf83d7d992679c0bb9339dffcca9f37e87f2d2f2664909c91022100de6b73ea56468e11f7b82cdc26397b14d0ecede21a5d0cf5216d52cdc7e3ac2400770063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016d41361b610000040300483046022100c0a16ea2dbf43ae26010d5cbc1e294d02ab65edc97154b23d338cce0f01e0df702210091e49208daea62151713448e2aa077918474ac6f05a4bbef9f74a17557924aaa
 . . . . [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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