seismograph.srcf.net
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:9b:31:7c:e2:38:f5:93:35:2d:53:05:8e:df:93:28:1c:92 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=seismograph.srcf.net
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:9b:31:7c:e2:38:f5:93:35:2d:53:05:8e:df:93:28:1c:92Serial Number (int): 314146405272967470289792528016843179826322
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 02:59:02:ee:1a:82:26:71:1c:d0:76:01:ed:4e:23:e4:4d:9b:9c:f8
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 4a:ac:8d:74:52:f1:27:6b:e7:57:13:f7:86:7b:8f:d6:76:89:0e:31
Fingerprint (sha256): 0b:4c:b3:3e:72:20:97:4e:6c:f0:67:88:2b:c1:72:b9:ca:9d:2f:6a:8d:4e:2f:42:69:86:85:60:c4:db:8d:0d
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate seismograph.srcf.net
3
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for seismograph.srcf.net
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
munin.srcf.net
seismograph.srcf.net
seismograph.srcf.societies.cam.ac.uk
seismograph.srcf.net
seismograph.srcf.societies.cam.ac.uk
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Certificate
The complete raw certificate details for seismograph.srcf.net in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFmDCCBICgAwIBAgISA5sxfOI49ZM1LVMFjt+TKBySMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA1MTIxOTMwMTlaFw0x OTA4MTAxOTMwMTlaMB8xHTAbBgNVBAMTFHNlaXNtb2dyYXBoLnNyY2YubmV0MIIB IjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0UrqzA41qzKLNw7ciffp5vKd 5PiJ/Mf4ebfX7dxoAkU89ymivv9+rmrn/apj72oEE48/ytpwC1Q9G0SRsKtsvOZ/ QCQUDfzPtGcWAJlY5w9epEYp0kLGYgKtUtYyZkgmZ+0oK+8n/feVBZfX+mLtj3lR xLfOM4xaRuAap8dzY6zNX+oltli632ciA5FtsRo3PtEoE9OGN014qatKES47g4so sGyDi/6PaUZ+FpmlMjQcNxPJL1trPDDgFHzl6tF3WuOPbwrJWFDuovXY4MVLT348 XwRuybgx7Jp2UatZ9lvTCX7UnPnmj3KO9539rAPnAaqQcMzyz21Y32n0PoO2/QID AQABo4ICoTCCAp0wDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMB BggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBQCWQLuGoImcRzQdgHt TiPkTZuc+DAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggrBgEF BQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRzZW5j cnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRzZW5j cnlwdC5vcmcvMFUGA1UdEQROMEyCDm11bmluLnNyY2YubmV0ghRzZWlzbW9ncmFw aC5zcmNmLm5ldIIkc2Vpc21vZ3JhcGguc3JjZi5zb2NpZXRpZXMuY2FtLmFjLnVr MEwGA1UdIARFMEMwCAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUH AgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5cHQub3JnMIIBBgYKKwYBBAHWeQIEAgSB 9wSB9ADyAHcAdH7agzGtMxCRIZzOJU9CcMK//V5CIAjGNzV55hB7zFYAAAFqrb02 awAABAMASDBGAiEA1wVhQasLti3N1gLsG6QLNZg82+7CzfL4Vh9mMPKSBzACIQCu yX7TRdBInA6/xUQl22dQbGW3CXslOxSvm9t5/IepugB3ACk8UZZUyDlluqpQ/FgH 1Ldvv1h6KXLcpMMM9OVFR/R4AAABaq29OH8AAAQDAEgwRgIhAIB1SCoHTDFFGgvR LLotBMlqGTCOyPxUzq96vcNW73ROAiEA1/egR5Xyb/Hgan40nhaudcZm3rwUmPSY nu8gCcM5QVcwDQYJKoZIhvcNAQELBQADggEBAI7VIgHE3Un4Z3Sk+nZ4QYjFwf7v 6k5mutWcUyyWuoPs72TWxo4+FzVLXoINPrU+zJS9++dB2p+pcU+Z3ItYG+cifQp7 F9w4jEAgR4dM9Qe86ZVnbbeBcsLDRook/ACBq3HY0Fst8553KuI0qb89ZpwoxDi7 ZuR3NgvDNiTQHFSAKniK6o6bBDlwonEs7giByGH10IUQPDb9wLkaGnL1ePsfSbvh BZe24oDac9VHFGh7sC2nOQbxwg5VgpiyVyBVfAaLNGB5JFkLJfNqoKUDIgEXaIHf xdLETzvgZO8yuqkqQe78ZiPFOfRxX0bViMCNQDt0NiYx4GRjAGDQ227+Duk= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0UrqzA41qzKLNw7ciffp 5vKd5PiJ/Mf4ebfX7dxoAkU89ymivv9+rmrn/apj72oEE48/ytpwC1Q9G0SRsKts vOZ/QCQUDfzPtGcWAJlY5w9epEYp0kLGYgKtUtYyZkgmZ+0oK+8n/feVBZfX+mLt j3lRxLfOM4xaRuAap8dzY6zNX+oltli632ciA5FtsRo3PtEoE9OGN014qatKES47 g4sosGyDi/6PaUZ+FpmlMjQcNxPJL1trPDDgFHzl6tF3WuOPbwrJWFDuovXY4MVL T348XwRuybgx7Jp2UatZ9lvTCX7UnPnmj3KO9539rAPnAaqQcMzyz21Y32n0PoO2 /QIDAQAB -----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 314146405272967470289792528016843179826322 . . . . . . . . [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 2019-05-12 19:30:19 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-08-10 19:30:19 +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 'seismograph.srcf.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 (2160 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 26420748774346675301157906641475244782736237219623623391609634465635450590240930287409614401289248357581276147082234137199338323318612158430361977330808262878498870760370223833821763273133892139910251865676884221430730709777859813032917018260570971261368701189599481706609952908061860620846268154704648806526722017236158074140251541398972178503620625942725452935579575310735052387681596412912236792107188193287659530563364854361131570257437767403323052929225230148307213595537771898680052254633455863129106356331821738892512601888603069454209753994534493893450388391037794394604988900938171004971254563863187022919421 . . . . . . . . . . . . . . . . . . . . [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) 025902ee1a8226711cd07601ed4e23e44d9b9cf8 . . . . . . . . . . . . . . . . [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 (78 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'munin.srcf.net' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'seismograph.srcf.net' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'seismograph.srcf.societies.cam.ac.uk' . . . . . . . . . . . . . . . . [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 (247 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes) 00f2007700747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016aadbd366b0000040300483046022100d7056141ab0bb62dcdd602ec1ba40b35983cdbeec2cdf2f8561f6630f2920730022100aec97ed345d0489c0ebfc54425db67506c65b7097b253b14af9bdb79fc87a9ba007700293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016aadbd387f00000403004830460221008075482a074c31451a0bd12cba2d04c96a19308ec8fc54ceaf7abdc356ef744e022100d7f7a04795f26ff1e06a7e349e16ae75c666debc1498f4989eef2009c3394157 . . . . [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) 008ed52201c4dd49f86774a4fa76784188c5c1feefea4e66bad59c532c96ba83ecef64d6c68e3e17354b5e820d3eb53ecc94bdfbe741da9fa9714f99dc8b581be7227d0a7b17dc388c402047874cf507bce995676db78172c2c3468a24fc0081ab71d8d05b2df39e772ae234a9bf3d669c28c438bb66e477360bc33624d01c54802a788aea8e9b043970a2712cee0881c861f5d085103c36fdc0b91a1a72f578fb1f49bbe10597b6e280da73d54714687bb02da73906f1c20e558298b25720557c068b34607924590b25f36aa0a5032201176881dfc5d2c44f3be064ef32baa92a41eefc6623c539f4715f46d588c08d403b74362631e064630060d0db6efe0ee9