cosima.net
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:55:ab:58:49:64:ea:87:e6:ce:f1:1b:5f:51:d1:52:0c:fc 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): 03:55:ab:58:49:64:ea:87:e6:ce:f1:1b:5f:51:d1:52:0c:fcSerial Number (int): 290488615381574582118600313182802205084924
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: fb:e0:17:91:92:a5:12:24:37:4c:71:df:d5:99:68:c0:e2:97:35:87
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): d8:85:f9:1a:81:63:ad:ae:7a:e2:4e:9c:11:16:36:2d:11:b5:fe:e5
Fingerprint (sha256): 54:79:0d:3e:e1:5b:f7:2d:ff:0c:bf:a3:c7:bc:f1:76:e6:22:04:36:ae:66:35:a7:8c:ff:5f:e1:34:95:d3:cb
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----- MIIGTDCCBTSgAwIBAgISA1WrWElk6ofmzvEbX1HRUgz8MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA5MzAwMDQzMzdaFw0x OTEyMjkwMDQzMzdaMBUxEzARBgNVBAMTCmNvc2ltYS5uZXQwggIiMA0GCSqGSIb3 DQEBAQUAA4ICDwAwggIKAoICAQDSafJwh7EyqjJpXhQVfllV9XlHq8DI8p3kIgJG Kdg+Xl7QsuT992JPp5ggQQpNk4qjTUTBWIaOpfckqi/6RWc0nBXnlKg9SCySP5xB wlefu+0SY1j4po2ULqkDxs8soYijqc5IgxWX9NopUi2ZzviMaEM00BQlKZh3oF4t hT18Nz1K65ZUVAyTfJUTmzyVu73JlR8G+jHLUAtxJ/JBERWg8e1syNcYokrgTb7n RRzqr0yPssrLBUnwMxtWprjqYWdqwKDf5XBiIvaH3wDzuRIK9XNxodpwigm+Lja1 Ljcsx1WmKIqsRRzwypL5/k8OA1Rswq/3MGY2rXCf47Z7RAILcqD5Lqw/snJKdYC+ 3v2RQyg98Dvw80AlC49FqUTfZn5L2BzgpazE9BVHW5XRswN0SAttXWTPsBWIEH53 JxW0RsUeYnU4rRijEYpRlD8rG0Unfdlo6Q8ljvTYZPeMfv1KMDQS2dUi/ae4KH1z s2NCGLe5I8ec1x946AKgZtHw8uc/NFnpn2dr1PyEyBtGJmZ0zUnmA9s0YOOYL6rF gsCQ6cVP7K1nTMSyhSPujBJPMTlLFIGxya8JaSFY/2/K5rhFyFEfWm07Es3Y6sY1 KQf54SkVOmVijG+q1Lht2eDiZPWfu8iC98w9w8qT09Xb+Ji3D3KtK4Pz2LrjhZZ7 Z7OJ4QIDAQABo4ICXzCCAlswDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsG AQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBT74BeRkqUS JDdMcd/VmWjA4pc1hzAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBv BggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5s ZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5s ZXRzZW5jcnlwdC5vcmcvMBUGA1UdEQQOMAyCCmNvc2ltYS5uZXQwTAYDVR0gBEUw QzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYaaHR0cDov L2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEEBgorBgEEAdZ5AgQCBIH1BIHyAPAAdgDi aUuuJujpQAnohhu2O4PUPuf+dIj7pI8okwGd3fHb/gAAAW1/1lp0AAAEAwBHMEUC IB0Z80MhfrQFbt6Qr6ZkvSTcmbKq+dQuU+evxZ+BMnluAiEA8CX9v6OAsnqE5Xqw KbypAHLrgkD2usDUyqcOJwlC4csAdgBj8tvN6DvMLM8LcoQnV2szpI1hd4+9daY4 scdoVEvYjQAAAW1/1lqcAAAEAwBHMEUCIA3guTuz2oAIbNzuoeaA5yocZErb3xXQ u6Qh/b1049CYAiEA1DsM4mL/vDVlEdzITh93kCtN7W2INFqxz8sWnBx5zZowDQYJ KoZIhvcNAQELBQADggEBAAh5tzRRQ2axoCquaVKB0po7h6W3v39jyvx0y8f9IkGA oJ1qIMbx5mJj2Qt3uATEbdAr5+hce5RN7qRlyF7MJLWr6QOcn5xTsb+a6px8jxYq QCX86dFI9cnOPvp8t6A62tx19QTvn/qYmORd8ZV4DfkRzK9E4XFuL/GNOrLjrKIr HHR4T+VRz4p4Ri6i9oUmpj69HmUeug2RfXXcEdNowVNvZ1iD3qAQlijYyEmeG+wN GjPJa1aCykuDHU81twwp9bswGJ7umiQbhrh4ZtazEYazaYqz5uRfXlK+rbzhf8oE 5bJpXRT+eu8AvlVmnq19Bbs9NJ8fAY0Q5XuFNpjd6k4= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA0mnycIexMqoyaV4UFX5Z VfV5R6vAyPKd5CICRinYPl5e0LLk/fdiT6eYIEEKTZOKo01EwViGjqX3JKov+kVn NJwV55SoPUgskj+cQcJXn7vtEmNY+KaNlC6pA8bPLKGIo6nOSIMVl/TaKVItmc74 jGhDNNAUJSmYd6BeLYU9fDc9SuuWVFQMk3yVE5s8lbu9yZUfBvoxy1ALcSfyQREV oPHtbMjXGKJK4E2+50Uc6q9Mj7LKywVJ8DMbVqa46mFnasCg3+VwYiL2h98A87kS CvVzcaHacIoJvi42tS43LMdVpiiKrEUc8MqS+f5PDgNUbMKv9zBmNq1wn+O2e0QC C3Kg+S6sP7JySnWAvt79kUMoPfA78PNAJQuPRalE32Z+S9gc4KWsxPQVR1uV0bMD dEgLbV1kz7AViBB+dycVtEbFHmJ1OK0YoxGKUZQ/KxtFJ33ZaOkPJY702GT3jH79 SjA0EtnVIv2nuCh9c7NjQhi3uSPHnNcfeOgCoGbR8PLnPzRZ6Z9na9T8hMgbRiZm dM1J5gPbNGDjmC+qxYLAkOnFT+ytZ0zEsoUj7owSTzE5SxSBscmvCWkhWP9vyua4 RchRH1ptOxLN2OrGNSkH+eEpFTplYoxvqtS4bdng4mT1n7vIgvfMPcPKk9PV2/iY tw9yrSuD89i644WWe2ezieECAwEAAQ== -----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 290488615381574582118600313182802205084924 . . . . . . . . [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 00:43:37 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-29 00:43:37 +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 858413637763597056286852866631746033190779445829979558090420413778802351807664482865582603732173528860194458320610491216612766675984903295768699563980066665647223049410318276022006896124147202733124527171814079732570135482576015260690848169457817842573539184321655768121753020474010014570972891877662594963845951164678936530829155902682114483099222768704182119287118716818859985621064167214046503579088855408420802747014699816966345567671748802040180210453800009584921938780233864202191263638275460847952552825255885629453098137467980897410632278957908193732504462024715358214948967927900755052368486736564888805020321354838909803960755358611577369463435927528366861316670070729963438566948063359044387196836538896696441407420094381651402998099471924823370985912993998921843089183282831402973763738036304493618270848999508333564754253132042514616760770774262095538277070823529864935775045897006102723962123975847487083755312573081547025349026604084173544795324892067872439674405412853489598916651208656128617515243280452141152773400133942028717004020343034303464293011223076012942676721001348748477439826279114323284926403154517527671670660722042278143115292333364279395618048728931252468481195800798435568266560149342204651187177953 . . . . . . . . . . . . . . . . . . . . [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) fbe0179192a51224374c71dfd59968c0e2973587 . . . . . . . . . . . . . . . . [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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016d7fd65a74000004030047304502201d19f343217eb4056ede90afa664bd24dc99b2aaf9d42e53e7afc59f8132796e022100f025fdbfa380b27a84e57ab029bca90072eb8240f6bac0d4caa70e270942e1cb00760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016d7fd65a9c000004030047304502200de0b93bb3da80086cdceea1e680e72a1c644adbdf15d0bba421fdbd74e3d098022100d43b0ce262ffbc356511dcc84e1f77902b4ded6d88345ab1cfcb169c1c79cd9a . . . . [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) 000879b734514366b1a02aae695281d29a3b87a5b7bf7f63cafc74cbc7fd224180a09d6a20c6f1e66263d90b77b804c46dd02be7e85c7b944deea465c85ecc24b5abe9039c9f9c53b1bf9aea9c7c8f162a4025fce9d148f5c9ce3efa7cb7a03adadc75f504ef9ffa9898e45df195780df911ccaf44e1716e2ff18d3ab2e3aca22b1c74784fe551cf8a78462ea2f68526a63ebd1e651eba0d917d75dc11d368c1536f675883dea0109628d8c8499e1bec0d1a33c96b5682ca4b831d4f35b70c29f5bb30189eee9a241b86b87866d6b31186b3698ab3e6e45f5e52beadbce17fca04e5b2695d14fe7aef00be55669ead7d05bb3d349f1f018d10e57b853698ddea4e