wtuclearn.tuc.org.uk
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:04:82:af:e3:11:8a:fb:62:b7:37:32:87:7d:49:39:5e:65 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=wtuclearn.tuc.org.uk
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:04:82:af:e3:11:8a:fb:62:b7:37:32:87:7d:49:39:5e:65Serial Number (int): 262871700159863648081617080435649447288421
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: f6:2a:2f:5c:e2:9a:1a:55:0b:03:ab:90:cb:29:9c:b3:74:27:f7:a0
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 9b:c1:7b:b6:79:2d:9a:69:b1:0c:a0:e6:2e:ec:49:b9:7e:ce:0d:0e
Fingerprint (sha256): 6b:d3:b9:93:e2:78:64:35:28:56:e6:6e:da:48:7a:56:ad:63:e1:d2:06:a4:17:7f:3e:92:2d:7d:63:2e:ac:07
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate wtuclearn.tuc.org.uk
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for wtuclearn.tuc.org.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
wtuclearn.tuc.org.uk
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Certificate
The complete raw certificate details for wtuclearn.tuc.org.uk in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFYDCCBEigAwIBAgISAwSCr+MRivtitzcyh31JOV5lMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTExMDEwNTExMDRaFw0y MDAxMzAwNTExMDRaMB8xHTAbBgNVBAMTFHd0dWNsZWFybi50dWMub3JnLnVrMIIB IjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzmox0ZjzogUVSpP7Q6jc8CgI Z5CLgMoIdj8F9qmsDF5q2PcR1ZzLAiybOBY4V1L86AXvCIsV15zBPlym/cl6djpT xHG5JyOE1YKs71QZIGYBae4YLWtd2TfO1f6VZS0QtTl5UHtXqgvraIRhKmdjTvoF JBYyq64PbLkSzeG8wKOSSl35anSn67sbRxsJvx4tLpCn1oHjSbvF7ipVdxX5ZKyq YfXGiPGb4FcVpnJjDTioYSJTHH2Ch+znLIoZ0UmL04RMhDzdp6xx/aD9BnjLwYsM 3NGDEQAYwSAgn+VMRSz2FcrdBvmylr9c11CLTf3u73vMkEg5m1T0J2IEdS6eIQID AQABo4ICaTCCAmUwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMB BggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBT2Ki9c4poaVQsDq5DL KZyzdCf3oDAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggrBgEF BQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRzZW5j cnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRzZW5j cnlwdC5vcmcvMB8GA1UdEQQYMBaCFHd0dWNsZWFybi50dWMub3JnLnVrMEwGA1Ud IARFMEMwCAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0 dHA6Ly9jcHMubGV0c2VuY3J5cHQub3JnMIIBBAYKKwYBBAHWeQIEAgSB9QSB8gDw AHYA8JWkWfIA0YJAEC0vk4iOrUv+HUfjmeHQNKawqKqOsnMAAAFuJZa1ZwAABAMA RzBFAiByXjdeto1CDO1aSCg83nkLsaTCKL+dkAHBYuTxc0AxbgIhAImLa0LnGdCp Bvn+vCzNFrZGzs8rk8sky99LVY6KjGWeAHYAsh4FzIuizYogTodm+Su5iiUgZ2va +nDnsklTLe+LkF4AAAFuJZa1VgAABAMARzBFAiAi5B0nlmJh8/lNWWZBM4p9XO5O oB1h6lAX/Raq04K3qQIhAITuU+edtXYdDnZZzoYpCRjHvKmLvl3KAxG5taW2cqdU MA0GCSqGSIb3DQEBCwUAA4IBAQAo/QmA/iaFkDEVzjaZVNCGXzg5rAZIk9RqAZsg w1IbcvlMTXrlWeVgEyYGD+7UUsWFELs3F+EJQ3mKMiogzvYSqKPeW0p4SOE+Hk9b gPDK3M6xaa9+R6hjDVlpfu0gUf8/s+hCF3illleFFgtNbk9LTPMyD9vWJ7YLnbzo j9WiNCuJYzLbS8QOcFa8uIY0tMxi6mE63KfTTlVXPj6qwgWo1/qDJUsE0pAtcyze zGH+WLtp3CQpMKyfs1bJlR51woemU0V75BylUUC5K8tnuNTiRoVARfuhjsqPR9qQ 9+wmKd6sMHaQp/jDMMT1CCcQAWOe9VjTP/H2cpUgTop4B2/d -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzmox0ZjzogUVSpP7Q6jc 8CgIZ5CLgMoIdj8F9qmsDF5q2PcR1ZzLAiybOBY4V1L86AXvCIsV15zBPlym/cl6 djpTxHG5JyOE1YKs71QZIGYBae4YLWtd2TfO1f6VZS0QtTl5UHtXqgvraIRhKmdj TvoFJBYyq64PbLkSzeG8wKOSSl35anSn67sbRxsJvx4tLpCn1oHjSbvF7ipVdxX5 ZKyqYfXGiPGb4FcVpnJjDTioYSJTHH2Ch+znLIoZ0UmL04RMhDzdp6xx/aD9BnjL wYsM3NGDEQAYwSAgn+VMRSz2FcrdBvmylr9c11CLTf3u73vMkEg5m1T0J2IEdS6e IQIDAQAB -----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 262871700159863648081617080435649447288421 . . . . . . . . [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 2019-11-01 05:11:04 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-30 05:11:04 +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 'wtuclearn.tuc.org.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 26057457334190719214891470776488208156467641599815533249146795143176154395358102833065725736937630610857044759853301104863993618020541924667222438962968959922668611001715618107968994175351344280982201739360350947760502691503078983555521013513406997392534953909166372240154587075138459137585956891943337691358274942448634331625477344782187445619046437763277032550191891904068133571169667290306417203479910035246514283506868262224072499953801246481025784028622550956134288162468215484368977405118058022942462609401158488662126008989309270580575967562013457087337930374696365821606802217442389488142719665408064288103969 . . . . . . . . . . . . . . . . . . . . [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) f62a2f5ce29a1a550b03ab90cb299cb37427f7a0 . . . . . . . . . . . . . . . . [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 'wtuclearn.tuc.org.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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016e2596b56700000403004730450220725e375eb68d420ced5a48283cde790bb1a4c228bf9d9001c162e4f17340316e022100898b6b42e719d0a906f9febc2ccd16b646cecf2b93cb24cbdf4b558e8a8c659e007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016e2596b5560000040300473045022022e41d27966261f3f94d596641338a7d5cee4ea01d61ea5017fd16aad382b7a902210084ee53e79db5761d0e7659ce86290918c7bca98bbe5dca0311b9b5a5b672a754 . . . . [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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