stadium.open.ac.uk
Issued by R3
About this certificate
This digital certificate with serial number 04:17:75:35:2e:73:01:22:f6:33:55:c0:f9:24:bf:ed:8f:ec was issued on by Let's Encrypt.
With 2 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=stadium.open.ac.uk
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:17:75:35:2e:73:01:22:f6:33:55:c0:f9:24:bf:ed:8f:ecSerial Number (int): 356431433975565340957401316037028240789484
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: c4:e6:b2:f7:d7:15:a6:0b:1b:f3:35:31:c8:ac:ce:4d:6c:df:d2:d5
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): 43:aa:ef:10:14:c6:73:12:d4:da:01:6b:ca:fb:1b:15:c9:52:b7:8c
Fingerprint (sha256): 6f:9b:6e:eb:a2:89:0d:50:4b:92:65:c4:9f:15:8d:38:c1:47:18:ef:1a:90:14:cd:6a:96:61:d5:13:3a:ba:54
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate stadium.open.ac.uk
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for stadium.open.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
stadium.open.ac.uk
stadium.open.edu
stadium.open.edu
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Certificate
The complete raw certificate details for stadium.open.ac.uk in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFOzCCBCOgAwIBAgISBBd1NS5zASL2M1XA+SS/7Y/sMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMzA0MDgyMjI1MzVaFw0yMzA3MDcyMjI1MzRaMB0xGzAZBgNVBAMT EnN0YWRpdW0ub3Blbi5hYy51azCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoC ggEBALLUtXKsyqYCqtAEfMTM9VELvX/avBr7ED5FWCq3yr3BniEpwwa984luNjfx sQOkroRzSUPHXsizaBC5vuV3tDE9FcOQtVgaekY95H8u7yJqH3Sq56CnjVPaho5w 1grnhlMEtttX8oIuM97MF5D7VVwIak4G8PZt9iniwGpowNgYdEFKj7g+dIgwFjOC C7eqQ3Rcmf8HZ8j+wMX9hjHDthCHNNUOchlOxUYx/f/1AbMPTt7PU9sn/kTfbQCI y/is3e1IlVFoDnw2kL+XAQUzky2bZ7ev6RgPXVjkCElWhLU1zrNzRFcrYy6XlVX0 0pST4zxKkRgPEexIpN95sketDu0CAwEAAaOCAl4wggJaMA4GA1UdDwEB/wQEAwIF oDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAd BgNVHQ4EFgQUxOay99cVpgsb8zUxyKzOTWzf0tUwHwYDVR0jBBgwFoAUFC6zF7dY VsuuUAlA5h+vnYsUwsYwVQYIKwYBBQUHAQEESTBHMCEGCCsGAQUFBzABhhVodHRw Oi8vcjMuby5sZW5jci5vcmcwIgYIKwYBBQUHMAKGFmh0dHA6Ly9yMy5pLmxlbmNy Lm9yZy8wLwYDVR0RBCgwJoISc3RhZGl1bS5vcGVuLmFjLnVrghBzdGFkaXVtLm9w ZW4uZWR1MEwGA1UdIARFMEMwCAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYI KwYBBQUHAgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5cHQub3JnMIIBAwYKKwYBBAHW eQIEAgSB9ASB8QDvAHUAtz77JN+cTbp18jnFulj0bF38Qs96nzXEnh0JgSXttJkA AAGHYzCAdAAABAMARjBEAiB0PHT5M/OFeMk2pb7oyYPi/kcojUyyLpmmZoKNfw8V RAIgA56ZfAAwwGdESsyBg05cfCBXng5gSLIQabvICw1NyoQAdgB6MoxU2LcttiDq OOBSHumEFnAyE4VNO9IrwTpXo1LrUgAAAYdjMICDAAAEAwBHMEUCIC2BoJ069uZP gtfvkrQRqb8kIkN0UI59kbFd77aUmjHZAiEA5yjJLZ1MPjpPbubM3/hInhscfk/N qR9HiTpMDUMKVUgwDQYJKoZIhvcNAQELBQADggEBAKubvd3eBLhJFPb6rwito03m Ir6ukxDWnllCW8ZhOWI8NXaUxKau5vSi08qxXbN6Kuyseuag7RbR4G7mghmhb9oo s+VgfN8FlzaeTy2FIStBjZDVmXy99zDjNbGV16R0c0uFaIyIUqK0e6pwyOJu+c4t fZxCand5LjYRgBCf4TJ7zLzYo3C5ct6TtmMEeoTpyVLrDfzEebJRNbpoRhrZ2e0z DQwZS4MPBFa0dYygmO6IrwcesX4QpX1beArrg9Fa283TSlFLK1scqP4g5QISfmMr /v69/PCTK6W7Zn5lq4siT1S/ZddPZij8z2OH7bOMAHuXDpOAdGSlDwLAqkdrgsE= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAstS1cqzKpgKq0AR8xMz1 UQu9f9q8GvsQPkVYKrfKvcGeISnDBr3ziW42N/GxA6SuhHNJQ8deyLNoELm+5Xe0 MT0Vw5C1WBp6Rj3kfy7vImofdKrnoKeNU9qGjnDWCueGUwS221fygi4z3swXkPtV XAhqTgbw9m32KeLAamjA2Bh0QUqPuD50iDAWM4ILt6pDdFyZ/wdnyP7Axf2GMcO2 EIc01Q5yGU7FRjH9//UBsw9O3s9T2yf+RN9tAIjL+Kzd7UiVUWgOfDaQv5cBBTOT LZtnt6/pGA9dWOQISVaEtTXOs3NEVytjLpeVVfTSlJPjPEqRGA8R7Eik33myR60O 7QIDAQAB -----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 356431433975565340957401316037028240789484 . . . . . . . . [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 'R3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-04-08 22:25:35 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-07-07 22:25:34 +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 'stadium.open.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 22575308893221293149107212374679250378798293900137035948245952743040114488766031174033807169006782649438337996215708456890108065901130662751003413180893817368114710384912986853678120494187558534128991466635922850414207473125568285295065194250297537453242320940453106367399454730466309439732132812115975641961115447442768361209796438407563089666696119127518368036483558031460465524204097714536536820481955258333558360259524144548506126085890860843112379360713809474563287092474542598431466470788501667329978404964316602281459285718605917892139239707731716393796909508298820024376200036242709785911590175237764677439213 . . . . . . . . . . . . . . . . . . . . [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) c4e6b2f7d715a60b1bf33531c8acce4d6cdfd2d5 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (40 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'stadium.open.ac.uk' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'stadium.open.edu' . . . . . . . . . . . . . . . . [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) 00ef007500b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb499000001876330807400000403004630440220743c74f933f38578c936a5bee8c983e2fe47288d4cb22e99a666828d7f0f15440220039e997c0030c067444acc81834e5c7c20579e0e6048b21069bbc80b0d4dca840076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018763308083000004030047304502202d81a09d3af6e64f82d7ef92b411a9bf24224374508e7d91b15defb6949a31d9022100e728c92d9d4c3e3a4f6ee6ccdff8489e1b1c7e4fcda91f47893a4c0d430a5548 . . . . [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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