probe.biosi.cf.ac.uk
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:25:77:8e:c1:f8:05:ea:51:f0:92:17:2f:25:14:86:37:bf 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=probe.biosi.cf.ac.uk
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:25:77:8e:c1:f8:05:ea:51:f0:92:17:2f:25:14:86:37:bfSerial Number (int): 274086224743163248531365638071436284671935
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 5a:96:8b:85:0b:3a:3c:02:83:79:66:9d:b7:1b:02:a8:3a:5e:83:d4
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 92:10:38:52:bb:66:f6:b8:f7:50:54:52:49:7c:0e:d8:71:fe:db:7d
Fingerprint (sha256): 0e:b8:e6:83:a7:24:5e:cd:f1:d0:6c:59:7d:c0:82:4e:0e:cf:d8:51:06:2b:a6:92:62:41:52:dd:00:27:6a:fd
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate probe.biosi.cf.ac.uk
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for probe.biosi.cf.ac.uk
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
probe.biosi.cf.ac.uk
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Certificate
The complete raw certificate details for probe.biosi.cf.ac.uk in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFXzCCBEegAwIBAgISAyV3jsH4BepR8JIXLyUUhje/MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAzMDEwMDAxNTJaFw0x OTA1MzAwMDAxNTJaMB8xHTAbBgNVBAMTFHByb2JlLmJpb3NpLmNmLmFjLnVrMIIB IjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvU1+A9IF2CFPrNRRniN/bWIx 7D3lGt5oNnxuc98slOp8APjv5PmQYLWjTPu26KgYKnbctA3AbUNUZAnkKlcTmMVD VN5qJL3U4Bm9pAPR+Z1H9VsG7QZqNwxvzvihm/hlqMOOXAXPVjuQmablhylDjrny tSyvFoIGrGn0Ks5zbNqIbU5o2r5rJyfnD5+XfqDd6RAStccm3kfEQQrImg9sQSJ2 2pKgdGpXdkGbOTDDCdGEaI4kHoe8yLZ9ktT+2okf16c0EObWYrU1IzHmoBvEF4zG W4Qq1uBl36QDKkAFzFDJo5Z+y7UxcEMfKPtWo2puUEVWGF3cBU4gGgbfmQYxRQID AQABo4ICaDCCAmQwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMB BggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBRalouFCzo8AoN5Zp23 GwKoOl6D1DAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggrBgEF BQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRzZW5j cnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRzZW5j cnlwdC5vcmcvMB8GA1UdEQQYMBaCFHByb2JlLmJpb3NpLmNmLmFjLnVrMEwGA1Ud IARFMEMwCAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0 dHA6Ly9jcHMubGV0c2VuY3J5cHQub3JnMIIBAwYKKwYBBAHWeQIEAgSB9ASB8QDv AHYA4mlLribo6UAJ6IYbtjuD1D7n/nSI+6SPKJMBnd3x2/4AAAFpNsWU8gAABAMA RzBFAiBtAGqzTTEW2knDpjbqEm8fJ2LI4R092rRVyHfxEyrUMQIhAKNQmXC/HJNH /Wydgr+GOIkuwBxquIo0J+T9yE0ZWf1KAHUAKTxRllTIOWW6qlD8WAfUt2+/WHop ctykwwz05UVH9HgAAAFpNsWXLAAABAMARjBEAiAc4Cx/6lYqB1qP5DVW8PUYEbgL K7EMHh5K2nTnxh03AgIgRsUoP0Fw5eWUkyviro1J1g3ijde75TZXagUc7TthSvYw DQYJKoZIhvcNAQELBQADggEBACKyCPRnsGJ9UG5sH8tTqKiDDC/DDO5cslAiHbyD PjN0kwkhHjLVtaLQZkoJ7n8K9i2I4juxmIAwmErzzDnDyWG3iborFoBSxS/hPYkp 85SW/w9EIQu7e4Sb+Xs5SNnkrvMBtbYdvvPkFg5bxDqIlteidlaEG/1X5fZuk/LO MNu3+FGZQ2LhFih1WOmgobi9f+enJNAT5g329Gn3E7MmsGbbJ6GpjfE7jT4aBYnd tJwEV51kKa7U7sSg4w5fDLiessLhovcyaLlgVZP4XAUISSkokL8kD0P/qiB3rjhJ taTOhphQg5+6R2YdOyjjb8lTa0c/7Oj2rwsFBEmF9mI5kAQ= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvU1+A9IF2CFPrNRRniN/ bWIx7D3lGt5oNnxuc98slOp8APjv5PmQYLWjTPu26KgYKnbctA3AbUNUZAnkKlcT mMVDVN5qJL3U4Bm9pAPR+Z1H9VsG7QZqNwxvzvihm/hlqMOOXAXPVjuQmablhylD jrnytSyvFoIGrGn0Ks5zbNqIbU5o2r5rJyfnD5+XfqDd6RAStccm3kfEQQrImg9s QSJ22pKgdGpXdkGbOTDDCdGEaI4kHoe8yLZ9ktT+2okf16c0EObWYrU1IzHmoBvE F4zGW4Qq1uBl36QDKkAFzFDJo5Z+y7UxcEMfKPtWo2puUEVWGF3cBU4gGgbfmQYx RQIDAQAB -----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 274086224743163248531365638071436284671935 . . . . . . . . [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 2019-03-01 00:01:52 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-05-30 00:01:52 +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 'probe.biosi.cf.ac.uk' . . . . . . . . [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 23897252489198894181362949239359536251436886386155571319500500962618023318056585867280804109223718750519739342220420819985213413420432012526577312570157891351447877833833198762671856224748065273254713959438437577250342631567455844750902286547866947134652132863088498395492925161578230417284826752059574684537838538068417967784154191189360405211729177053648866673131706035051557691538811466627470890653537454346165422259870711268188178392267671501918086160977959108857113420479955405829141622910213701298415551700849731391717420679967732116648057028143423528277757560464274674890344928605222139429453139549128751460677 . . . . . . . . . . . . . . . . . . . . [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) 5a968b850b3a3c028379669db71b02a83a5e83d4 . . . . . . . . . . . . . . . . [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 (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'probe.biosi.cf.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 (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016936c594f2000004030047304502206d006ab34d3116da49c3a636ea126f1f2762c8e11d3ddab455c877f1132ad431022100a3509970bf1c9347fd6c9d82bf8638892ec01c6ab88a3427e4fdc84d1959fd4a007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016936c5972c000004030046304402201ce02c7fea562a075a8fe43556f0f51811b80b2bb10c1e1e4ada74e7c61d3702022046c5283f4170e5e594932be2ae8d49d60de28dd7bbe536576a051ced3b614af6 . . . . [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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