www.cosima.net
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:ee:f5:cc:65:cc:bf:2b:77:b1:aa:9b:44:ab:8e:63:72:ed was issued on by Let's Encrypt.
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=www.cosima.net
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:ee:f5:cc:65:cc:bf:2b:77:b1:aa:9b:44:ab:8e:63:72:edSerial Number (int): 429763069206495865692130144212493447426797
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 9e:39:dd:b9:9e:69:31:70:f5:73:e6:db:1f:4b:71:9f:27:ec:9b:6c
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): e0:b2:61:96:95:0d:77:87:ca:ae:5a:33:e1:8b:5e:32:41:de:23:96
Fingerprint (sha256): 3d:2a:be:26:d1:99:fc:ce:ab:3c:1d:d6:ee:3e:5d:0c:f4:11:6a:e6:03:13:f6:ec:e9:5c:9d:64:c4:2c:d5:7c
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate www.cosima.net
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.cosima.net
Public Key Algorithm
RSA
Key Size
4096
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
www.cosima.net
Other certificates including the domain name cosima.net
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.cosima.net in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGUzCCBTugAwIBAgISBO71zGXMvyt3saqbRKuOY3LtMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA5MzAwMDQ4MDlaFw0x OTEyMjkwMDQ4MDlaMBkxFzAVBgNVBAMTDnd3dy5jb3NpbWEubmV0MIICIjANBgkq hkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA8Kwxb1j536QbC92z0TsFEZO01lsrvjVH n4/quAAlKNUvP0ytb7xu9ZGCjRIUlWWFAMpx8aciTiZBgh4CA4n1dXfndJRIe6xn mRwmKX4z1CzyRJ8bKwG5l1G+qfn8/jnIHGwRCBphi6lYnOqZWIXA4o/8805QVsvs +rX1nKn+k3tYFRlBQ9zxK59w0+Cp1dURT7oS66NBBXOMW4+KbDoBzyPG+gzaygPd aKvpk+YW6jNmLcKQEsNeoMoZo2tB8g85Y+DAOc3i2JwyXSztp36vrLgIcVgBD55H BtDQobKgVpfyrcwh7f0t9qp0GY/9n4oFyeo+hHPt4wfXMpx4Gw9nKFQ/EZQgkb2a Pq0GJJdmWXZSyzPGj5QDBJSZsyTubwrZ4Y7rxG2ridxI2SXu5cortPd1xLhIG+tP 3UlXC93M/nSg54+NTPPIY1WMkc1yS5TqbSGyVsG1RkwYyOsll0c6QniGwiMvrKul GFzCVj0kX/sFiUPiHUqANrB/tdPDagKAzkQrYaLVj+9K13FG3fVZDVtKnBZZWAcf h7b/0fRSC5R10oX8Nk+NOtDfy8Ejvxr6pXeyRYDn/5REjNmB1dylcx/YJFm0Olnl zo8ZiEp711XMTS+4Z+TaPWj+MX8j9iM9sQSvkblPYT5JA87y3MYawnJPA2G5G+Du dRkQXQWASO0CAwEAAaOCAmIwggJeMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAU BggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUnjnd uZ5pMXD1c+bbH0txnyfsm2wwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo 7KEwbwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQt eDMubGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQt eDMubGV0c2VuY3J5cHQub3JnLzAZBgNVHREEEjAQgg53d3cuY29zaW1hLm5ldDBM BgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIB FhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQMGCisGAQQB1nkCBAIEgfQE gfEA7wB1AHR+2oMxrTMQkSGcziVPQnDCv/1eQiAIxjc1eeYQe8xWAAABbX/ag04A AAQDAEYwRAIgO2j5JWUICE9JkxnxQvIYoEUk4QBlvzg2H0hD72gm6OICIHbANsI6 ZYIePe3L1ADggRBVzTja19v+3uX9trpzxcrXAHYAY/Lbzeg7zCzPC3KEJ1drM6SN YXePvXWmOLHHaFRL2I0AAAFtf9qDSgAABAMARzBFAiBZZErSZcgBPnwPOHW7iRsC QHyTEYjWOT2rmIsFKISztAIhAKTh1VPAXn0d0BtskTu4DAuwIMbbdTy52QvGXVlg 81pKMA0GCSqGSIb3DQEBCwUAA4IBAQA1suQUNA4y8J3D0c1gf67jCEE9YSs6/GQi gpJjs3rCw2YZaIrbTEfW+h1U9dhrl8XtvCVTRCxu5c+/DiwBwcOutwHeb0yd2Fpc HzEuMraBrjlkU6LvLUVntWj3/qo2ALRnrz/2kQxXMTd1Xabqy3V66Z3k2l2hmfJx bgB6eIcR5rm4PJDsBW7w31hKLIUpcegMFFQpYoleQLYtPQSgQYzg/S64go8QaSZH Mde5vMU3gMreyxl4pMWvWES7QGkrGJPhmUHw52kkuKE5qT3XpY/bcXmFOuAkEuR8 axdAWaInDqMB0d3v5VYyLq7smfkMYHYOrYBDKo0oBINW3h5eYhBD -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA8Kwxb1j536QbC92z0TsF EZO01lsrvjVHn4/quAAlKNUvP0ytb7xu9ZGCjRIUlWWFAMpx8aciTiZBgh4CA4n1 dXfndJRIe6xnmRwmKX4z1CzyRJ8bKwG5l1G+qfn8/jnIHGwRCBphi6lYnOqZWIXA 4o/8805QVsvs+rX1nKn+k3tYFRlBQ9zxK59w0+Cp1dURT7oS66NBBXOMW4+KbDoB zyPG+gzaygPdaKvpk+YW6jNmLcKQEsNeoMoZo2tB8g85Y+DAOc3i2JwyXSztp36v rLgIcVgBD55HBtDQobKgVpfyrcwh7f0t9qp0GY/9n4oFyeo+hHPt4wfXMpx4Gw9n KFQ/EZQgkb2aPq0GJJdmWXZSyzPGj5QDBJSZsyTubwrZ4Y7rxG2ridxI2SXu5cor tPd1xLhIG+tP3UlXC93M/nSg54+NTPPIY1WMkc1yS5TqbSGyVsG1RkwYyOsll0c6 QniGwiMvrKulGFzCVj0kX/sFiUPiHUqANrB/tdPDagKAzkQrYaLVj+9K13FG3fVZ DVtKnBZZWAcfh7b/0fRSC5R10oX8Nk+NOtDfy8Ejvxr6pXeyRYDn/5REjNmB1dyl cx/YJFm0Olnlzo8ZiEp711XMTS+4Z+TaPWj+MX8j9iM9sQSvkblPYT5JA87y3MYa wnJPA2G5G+DudRkQXQWASO0CAwEAAQ== -----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 429763069206495865692130144212493447426797 . . . . . . . . [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 2019-09-30 00:48:09 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-29 00:48:09 +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 'www.cosima.net' . . . . . . . . [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 (4208 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 981858664529929408764588414123435488925920038488019866554453562783050780711079991943949593236121187017801168263775563583137796015842053492619866996000611404629221787737240513364808067229116280573907128351262689638884667076765938448303452944989271054187668005774865873524041446879724716681380708382729583077454461714735018372909889363101222524465259318988190285699891616732093305038439290014981661456128807003791172856991412046779014012101832047979885528150285255031767467713105824401668126834812289107470269155412492069467568536033220119115402556023913997081793556198392900077428101758005626227679584498607689325356515186956700791974472697180561201422969489422131297978779653287084777317664219291077744565383303425910072505390508480697233480099879336155213384786782637590717843958462450907656107773188600172465312040100517905004166814324983062524826414628478319517163022861689052230902873612166870628888926602309877553367835503099777228744960357685262660924819731715490378673469783303689031817001521534945467716371847270653362212411149393711378809667726679768980522146231621937625089648922539116351011969749553796695724869071651195475943686267081531161080802269196099689902847447584857928710212353727078325887975602071049108369459437 . . . . . . . . . . . . . . . . . . . . [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) 9e39ddb99e693170f573e6db1f4b719f27ec9b6c . . . . . . . . . . . . . . . . [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 (18 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cosima.net' . . . . . . . . . . . . . . . . [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) 00ef007500747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016d7fda834e000004030046304402203b68f9256508084f499319f142f218a04524e10065bf38361f4843ef6826e8e2022076c036c23a65821e3dedcbd400e0811055cd38dad7dbfedee5fdb6ba73c5cad700760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016d7fda834a0000040300473045022059644ad265c8013e7c0f3875bb891b02407c931188d6393dab988b052884b3b4022100a4e1d553c05e7d1dd01b6c913bb80c0bb020c6db753cb9d90bc65d5960f35a4a . . . . [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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