www.cosima.net
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:10:45:02:ca:cd:d1:78:9b:70:c1:a7:d4:da:2f:f7:20:79 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): 03:10:45:02:ca:cd:d1:78:9b:70:c1:a7:d4:da:2f:f7:20:79Serial Number (int): 266873106895671973045430736230598474932345
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 22:b1:74:72:f9:97:07:2d:d6:2e:6c:85:e0:bd:aa:23:fe:19:38:1e
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 2f:86:1b:1b:9d:03:12:04:45:1a:0c:0e:8d:c6:b0:8d:c5:89:63:7c
Fingerprint (sha256): 7d:57:6e:7d:4c:c2:84:e8:56:55:c5:af:6b:16:5e:27:b1:b0:aa:9d:a5:13:99:f0:83:1e:79:79:e1:ec:86:ff
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----- MIIGUjCCBTqgAwIBAgISAxBFAsrN0XibcMGn1Nov9yB5MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA3MjgxMDUwMzNaFw0x OTEwMjYxMDUwMzNaMBkxFzAVBgNVBAMTDnd3dy5jb3NpbWEubmV0MIICIjANBgkq hkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAuTbzb9QepUYNc07J2GmFY+YlXOGzgo2l 6Yi0A3BbmxX7Lmx3MleAmpZRIEuhkU+db4h0dyKKPhOsXcyHvuFGK6Zvr84EMWHT AulOu/3aTtKKKbxND5JzQE9iQdFd73jE2iZsk6XTnamyeX4JTMH7QMImY1f/UyBO jD1sv553svn3ObNYAgb8DfsA4anD3P5S9IDTBLrXRoPNqAhibs/WWCs9K/HDKMam et+4AfgTEyKXYtidb+AJXvjNUs67WTUGmQUH+F/1d3w3PiFXsgAQDk41qAcgpuFK fg3Z0ztzjJS3/3xj2IDpSNCFYVI5GMU1ZnoxOxTJj7oQTXfDLKKf267nd7QZSDxF Cf2PujU9g0caP/n5Dq9vnB5J/LwegDYI1oh3W80xzTUAVRLctxy35mWcdtFhS19S 5M6IMQBWDHOzjKaYWEMzJgaYVOzpnG66WlEZ2QiC2H1v4EPHT0ihhJahKSJ5+KQj /Y4Lq7nS6j1EJloEjRvA731h5vgKbTYidmfA1oEhxz+xtz58wEBRVtyF9hRa9/8a x4MLO4XLxMDx2Tl8TO136+NuDGbGo28K0cv08oKu6EzvKCU7g+wADSI8YW0uafxG 75efe5rjNCopTKJmsTpybso/PTro85RT0hpNIgs8Tqr0TYy7ufNv/ts1L0tmIQQF gYYVLyvkibUCAwEAAaOCAmEwggJdMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAU BggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUIrF0 cvmXBy3WLmyF4L2qI/4ZOB4wHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo 7KEwbwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQt eDMubGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQt eDMubGV0c2VuY3J5cHQub3JnLzAZBgNVHREEEjAQgg53d3cuY29zaW1hLm5ldDBM BgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIB FhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQIGCisGAQQB1nkCBAIEgfME gfAA7gB1AOJpS64m6OlACeiGG7Y7g9Q+5/50iPukjyiTAZ3d8dv+AAABbDhrBroA AAQDAEYwRAIgVKnHsQfKks+d5OFXq1G51/y8rJ7RJ4/NDDlQlLnoI00CIExXVeqb wZJPIHUb9IzPrgLwc9YDxbFZLl2YfsZeeR0gAHUAKTxRllTIOWW6qlD8WAfUt2+/ WHopctykwwz05UVH9HgAAAFsOGsG4wAABAMARjBEAiBMEs3zNYqGWYGEI5EN5Vpl N6kMyrc6F1EbVNB9c21xqwIgA5mAAGLk7tkSwI5Vd0ZsKmila1+46aY4pDcognxL gw8wDQYJKoZIhvcNAQELBQADggEBAAAdS12RQyKV0JiRSuNvMPHVbD+B6lneuhIn d6g5b9zMrAZyvfKfoi3rgEonYM0t9n1ZAm6Bi00prbGJYC+xSoikJG0mxPSSJl9b MTHK/IfE9udw4H+35kKt/KxKPfQbkYd6C+ccMrz7VkauhMVLTmD3rqL7i9mC3WoF enNwowpacI+dgb+9IBRqQPnB4VXqaqZRRMnON7GLnBuidjCvfFNVSG6Kh8ozTMwG sIGAgaH8g/R4k+ks3mHjC0y73VNawVMCfs+o47x7xZRLL/P2p/zenI9uos+rgP69 guCTbIwJ1aNEWiT3tXPtl9+lBZUBUqsTNd/5dECBsmBMsXIEASI= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAuTbzb9QepUYNc07J2GmF Y+YlXOGzgo2l6Yi0A3BbmxX7Lmx3MleAmpZRIEuhkU+db4h0dyKKPhOsXcyHvuFG K6Zvr84EMWHTAulOu/3aTtKKKbxND5JzQE9iQdFd73jE2iZsk6XTnamyeX4JTMH7 QMImY1f/UyBOjD1sv553svn3ObNYAgb8DfsA4anD3P5S9IDTBLrXRoPNqAhibs/W WCs9K/HDKMamet+4AfgTEyKXYtidb+AJXvjNUs67WTUGmQUH+F/1d3w3PiFXsgAQ Dk41qAcgpuFKfg3Z0ztzjJS3/3xj2IDpSNCFYVI5GMU1ZnoxOxTJj7oQTXfDLKKf 267nd7QZSDxFCf2PujU9g0caP/n5Dq9vnB5J/LwegDYI1oh3W80xzTUAVRLctxy3 5mWcdtFhS19S5M6IMQBWDHOzjKaYWEMzJgaYVOzpnG66WlEZ2QiC2H1v4EPHT0ih hJahKSJ5+KQj/Y4Lq7nS6j1EJloEjRvA731h5vgKbTYidmfA1oEhxz+xtz58wEBR VtyF9hRa9/8ax4MLO4XLxMDx2Tl8TO136+NuDGbGo28K0cv08oKu6EzvKCU7g+wA DSI8YW0uafxG75efe5rjNCopTKJmsTpybso/PTro85RT0hpNIgs8Tqr0TYy7ufNv /ts1L0tmIQQFgYYVLyvkibUCAwEAAQ== -----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 266873106895671973045430736230598474932345 . . . . . . . . [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 2019-07-28 10:50:33 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-10-26 10:50:33 +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 755609856551276469686161762228254476303385767549040840804549350848944644155498103486310646494671560091033789173948357356670895730929911139958388840119464535214273064098639464615488698746925378268740584209935921890938550601611251176421970044295030655752748731990170671763804097941350306580297302681754645207496949410453636507993286957707488177035012367383407429941448209460874006292753023618664411264913440978378725752300415942745591944672297739575858774643211392854842048669293555278124988433095949897531433646214526284902181099167985584678925967594105942720503344260530534099598881607884353984316611498973499700998516507899048598680259519770052257677454514559004422295627169769479245477776827553670582289687022366691787830339069958312585532375699064689998414310650124862061612017700072877564625961535288250300310330020683414849225012732212353888236760164232645890883853066920618671392721277995794262350648211374296802733807825670366530335264722140958703909410219256600714585830227414742911626796136439508006120107760356594599585784706555691133875409874905955244312310497454332630949674916310775607333472834344277270689794859678669771369724980127463565146860810191946459536045740840157108847298242309432626123629161480727843540601269 . . . . . . . . . . . . . . . . . . . . [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) 22b17472f997072dd62e6c85e0bdaa23fe19381e . . . . . . . . . . . . . . . . [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 (243 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes) 00ee007500e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016c386b06ba0000040300463044022054a9c7b107ca92cf9de4e157ab51b9d7fcbcac9ed1278fcd0c395094b9e8234d02204c5755ea9bc1924f20751bf48ccfae02f073d603c5b1592e5d987ec65e791d20007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016c386b06e3000004030046304402204c12cdf3358a8659818423910de55a6537a90ccab73a17511b54d07d736d71ab02200399800062e4eed912c08e5577466c2a68a56b5fb8e9a638a43728827c4b830f . . . . [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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