cosima.net
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:2a:ad:cd:95:a1:84:40:83:71:2d:d3:44:03:98:d8:8b:a0 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=cosima.net
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:2a:ad:cd:95:a1:84:40:83:71:2d:d3:44:03:98:d8:8b:a0Serial Number (int): 275859741104962640613171757192934845877152
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 03:c9:3e:3d:e9:9f:c8:a6:ef:df:bd:df:a2:83:8c:5e:40:ef:65:e3
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 0b:2b:63:49:2d:e0:72:78:9f:5a:24:0f:16:06:2b:44:87:d0:82:5f
Fingerprint (sha256): 20:42:c0:07:45:57:1c:51:de:55:6a:da:64:ca:15:00:49:17:37:2c:44:bc:67:19:9b:50:13:f5:d3:ab:ad:23
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate cosima.net
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for 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
cosima.net
Other certificates including the domain name cosima.net
(limited to 100 certificates)
Certificate
The complete raw certificate details for cosima.net in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGSzCCBTOgAwIBAgISAyqtzZWhhECDcS3TRAOY2IugMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAyMDQwODM4NDJaFw0y MDA1MDQwODM4NDJaMBUxEzARBgNVBAMTCmNvc2ltYS5uZXQwggIiMA0GCSqGSIb3 DQEBAQUAA4ICDwAwggIKAoICAQDkVJIu9Zl5ImIEr0tiV5bWDkkxJHeBy0e88TqT d+lEWz/oCmiXFl2QiPXneEVlUvno/7G0kxBBq2vx35lBDdsyFX6FryZX56QB9tTS LJsj5NurfBQRswv2bCxKX7S3v86ZI0uTnHEnTD2ffkl30AjA7eeYbAEIWQDN1/mx gLawsAMnZ1S3F62XFeNgrN5QAdMru4IvxSSnzj5G/ugilT/HHb2NkxbvAapMe23q dDp/LzojUpQ67GAbMeF2pPENblIUrWAwqzuGvUmHeNSpkmYGmarHv9fIYXo1gHuo gFop2GRQ7Xf+AWN84wlC3K5z/fdZ1m5qjMW9EaD6oGp7h50EAsUZnuD+AMPT5/i2 vX1sB2Repmeg3qQTdxSEPTI9kcCTsdherWNB3FtQ05NOxhOVekZrG+ykCtBOvBQx 696qZCT7xBKczmXscoRWaSa1/ILIbSVhED2IpbrH46Ksp7601LYHLqgK5hCWcF+p Or7lUf5QYQcY3FOKVXbFAWroydgGCTzWc3Aup4TxDFSXegkRIp6hlfQ6QSXlsIbA Q1T/E1AF4si1qxtJCfPUbNAFd8KhIW2iIPZmmpaC4nqNyvve5mi4LURgf56l7pUu yyEfqqIHgO/jjnuk+Y3i/FcmzYLf7PaFQREbQwRRnOsSCqmd8UiPI46V/g0x+WF/ e1rrvwIDAQABo4ICXjCCAlowDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsG AQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBQDyT496Z/I pu/fvd+ig4xeQO9l4zAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBv BggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5s ZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5s ZXRzZW5jcnlwdC5vcmcvMBUGA1UdEQQOMAyCCmNvc2ltYS5uZXQwTAYDVR0gBEUw QzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYaaHR0cDov L2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEDBgorBgEEAdZ5AgQCBIH0BIHxAO8AdQCy HgXMi6LNiiBOh2b5K7mKJSBna9r6cOeySVMt74uQXgAAAXAPkPRmAAAEAwBGMEQC IGehfq67p9bslGY973OTX/jkTOLV8mrmJRci2SZ3ddfIAiBq+4kpXQ6KnM8obkNM OvndmjDzmjoi9xnvqkIzjeIhrwB2AG9Tdqwx8DEZ2JkApFEV/3cVHBHZAsEAKQaN sgiaN9kTAAABcA+Q9PcAAAQDAEcwRQIhAJXg+VV7erGnAAY2EwpbiqhuB2ymuuR7 wNdpmrV9vXwfAiAVF1lykYra4eztu0VLm+CjQUZNB0fucTzoPHLPXcqi7DANBgkq hkiG9w0BAQsFAAOCAQEAQzDUzCIBL5hf+f8gjJJ7WCI8/q909zKB5hPqiFpcovDm Msb/aEnLbWKI/uUmeITfDDZs+T7za0yVO9UinSTgvsDxemIpujg7mb8vQgnwBa3S SdbzUMEIBSCR08habtmdda+6H7/uJUp9ksn+1F0ARD9coXNN+Vup0N6w55OQfj+S KZKZ5mUDg1bAs/7znQyfeI7yGXSkKNDJHykc265PLfpTTT9ZsoEQVX45+aFtY8yI 350LQ6mn2QaCSZAllG8a1rqYmh7+rJuAxS3jK17uEJJPb6GeLNewL0ZqRNtj+TnJ XfJlEhS2lJaL82Wz4NUC47u6ETOaHUSz+atOZ2lvrQ== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA5FSSLvWZeSJiBK9LYleW 1g5JMSR3gctHvPE6k3fpRFs/6ApolxZdkIj153hFZVL56P+xtJMQQatr8d+ZQQ3b MhV+ha8mV+ekAfbU0iybI+Tbq3wUEbML9mwsSl+0t7/OmSNLk5xxJ0w9n35Jd9AI wO3nmGwBCFkAzdf5sYC2sLADJ2dUtxetlxXjYKzeUAHTK7uCL8Ukp84+Rv7oIpU/ xx29jZMW7wGqTHtt6nQ6fy86I1KUOuxgGzHhdqTxDW5SFK1gMKs7hr1Jh3jUqZJm Bpmqx7/XyGF6NYB7qIBaKdhkUO13/gFjfOMJQtyuc/33WdZuaozFvRGg+qBqe4ed BALFGZ7g/gDD0+f4tr19bAdkXqZnoN6kE3cUhD0yPZHAk7HYXq1jQdxbUNOTTsYT lXpGaxvspArQTrwUMeveqmQk+8QSnM5l7HKEVmkmtfyCyG0lYRA9iKW6x+OirKe+ tNS2By6oCuYQlnBfqTq+5VH+UGEHGNxTilV2xQFq6MnYBgk81nNwLqeE8QxUl3oJ ESKeoZX0OkEl5bCGwENU/xNQBeLItasbSQnz1GzQBXfCoSFtoiD2ZpqWguJ6jcr7 3uZouC1EYH+epe6VLsshH6qiB4Dv4457pPmN4vxXJs2C3+z2hUERG0MEUZzrEgqp nfFIjyOOlf4NMflhf3ta678CAwEAAQ== -----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 275859741104962640613171757192934845877152 . . . . . . . . [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 2020-02-04 08:38:42 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-04 08:38:42 +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 '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 931506580699848008431091826660139463817577926389054191688773376879214689469184905686245895742831195953965064912463415938613167330338360568805507412713899052700116348737260050223466872745867673510462977349281613824623454712266690961693912845340304984891928969350716859575487844865840847171620569443465073053088533383750660783580473894287642310544644043895432020055754473935765611259102302187048507917651693167584202471638757050517724532725764547158016497470096259775511577360680401364995632671004340492096131210697495852128133906826898681578525681988831456008614016143288671975180770922146660393399872031509163762239880980169637102269206389392718973759886860492545661766453281614767411547418489566269473421675401636550329948731550129568017018438660327166887111429468959460718920536187135190474123624088695517311661704658613031224528307500819707706480993106338918530285452189903083649932011612132318908881645899914832412359673972407115347955447685818385435390641145408230689610012066552609294070855298528134686707979204474295199940550665062085617317665310554068116368575043741275852882624684274464739436615791883435716289872073785999084774264170193763607350754774498272617555775559970785670754503989698724993074435317780638749345639359 . . . . . . . . . . . . . . . . . . . . [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) 03c93e3de99fc8a6efdfbddfa2838c5e40ef65e3 . . . . . . . . . . . . . . . . [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 (14 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '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) 00ef007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e000001700f90f4660000040300463044022067a17eaebba7d6ec94663def73935ff8e44ce2d5f26ae6251722d9267775d7c802206afb89295d0e8a9ccf286e434c3af9dd9a30f39a3a22f719efaa42338de221af0076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d913000001700f90f4f7000004030047304502210095e0f9557b7ab1a7000636130a5b8aa86e076ca6bae47bc0d7699ab57dbd7c1f022015175972918adae1ecedbb454b9be0a341464d0747ee713ce83c72cf5dcaa2ec . . . . [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) 004330d4cc22012f985ff9ff208c927b58223cfeaf74f73281e613ea885a5ca2f0e632c6ff6849cb6d6288fee5267884df0c366cf93ef36b4c953bd5229d24e0bec0f17a6229ba383b99bf2f4209f005add249d6f350c108052091d3c85a6ed99d75afba1fbfee254a7d92c9fed45d00443f5ca1734df95ba9d0deb0e793907e3f92299299e665038356c0b3fef39d0c9f788ef21974a428d0c91f291cdbae4f2dfa534d3f59b28110557e39f9a16d63cc88df9d0b43a9a7d90682499025946f1ad6ba989a1efeac9b80c52de32b5eee10924f6fa19e2cd7b02f466a44db63f939c95df2651214b694968bf365b3e0d502e3bbba11339a1d44b3f9ab4e67696fad