wirtschaftsarchiv.uni-koeln.de
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:09:e6:1f:ad:7a:fd:f1:53:94:71:31:cd:fb:33:b4:91:aa 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=wirtschaftsarchiv.uni-koeln.de
Let's Encrypt
This certificate has expire since
Certificate Details
Serial Number (hex): 03:09:e6:1f:ad:7a:fd:f1:53:94:71:31:cd:fb:33:b4:91:aaSerial Number (int): 264705286016403620053247682729008392606122
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 27:33:28:8a:0b:8d:43:48:9f:e5:18:be:be:f2:1d:1a:ad:f8:76:29
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 64:df:10:5b:32:ca:5c:30:e9:ef:52:8a:8e:e2:e9:ee:a4:f4:6d:fe
Fingerprint (sha256): 02:b2:c5:da:47:f9:22:34:55:2d:f7:8d:35:55:2a:32:a4:1e:43:2a:98:1b:34:df:f0:f6:4c:5f:fe:09:39:8d
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate wirtschaftsarchiv.uni-koeln.de
2
0
0
Advanced Certificate Properties
Tehnical certificate details for wirtschaftsarchiv.uni-koeln.de
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.wirtschaftsarchiv.uni-koeln.de
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wirtschaftsarchiv.uni-koeln.de
Certificate
The complete raw certificate details for wirtschaftsarchiv.uni-koeln.de in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGlzCCBX+gAwIBAgISAwnmH616/fFTlHExzfsztJGqMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAzMTQyMDQxNTFaFw0x OTA2MTIyMDQxNTFaMCkxJzAlBgNVBAMTHndpcnRzY2hhZnRzYXJjaGl2LnVuaS1r b2Vsbi5kZTCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBALx6tfnv96LF wth46F7FywBw3PoGc1EJUeN62dMP5CWPIxF++ILmwbhcTmCt+yXZPyMuDL/Oo2Rm 8OFh96pGFb6YyblU8hiI0AOw/v1tuFZnUwN/WFYhqwhMUVNHh1+Ymo1aCy0YzCz9 oiBmNsVigdVWqGnv8quxfPb3C7SVFKHomsE8FsI1+uSmO4XiKPLFUsEPlWxi8R48 ck7ph+ytwasctzCdLilMtxQIPY5r/zXIJfs3NTQTcC+7riEa6GOof8VzGZ+YHqdG uyLDwqi6y74LJK4DWY+VXBjco5bviBBi6CgZ5OYcnMt/NnMeoMgWP66C7ABgMftc 4I82rTFC58FnHmjuhnchWqg1gL+Vo8LalAImXIgi4l5lfBbLEabQ+3ZvtbJ5SneG iM4O21YUS8gCXnjDuOBH1OoBZE7jB4eRWwVs5Xt7SUFuToBhld+KBK7YETlK7low Zm4iPZpXWOzUQ8MxIpNFzYUNZj2Z+f1O4LUsd5YT+kO/tGmGg7LjapgCsrHIOKTZ DCYfwWsQcqciQIGga2Pof/YLMukIz+UbAceTi4ZCnUt7QYxLsljpelMOMbyo6Ev4 /RKW4RiwaB6GRkCgarnTGkLYQS93Pt31n2Vj/cqU/5KJGjNdoMn2VM4nv/DVRdRd jti9lnqbhyJUcRwjokOrXRFPHl4uka/1AgMBAAGjggKWMIICkjAOBgNVHQ8BAf8E BAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQC MAAwHQYDVR0OBBYEFCczKIoLjUNIn+UYvr7yHRqt+HYpMB8GA1UdIwQYMBaAFKhK amMEfd265tE5t6ZFZe/zqOyhMG8GCCsGAQUFBwEBBGMwYTAuBggrBgEFBQcwAYYi aHR0cDovL29jc3AuaW50LXgzLmxldHNlbmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYj aHR0cDovL2NlcnQuaW50LXgzLmxldHNlbmNyeXB0Lm9yZy8wTQYDVR0RBEYwRIIe d2lydHNjaGFmdHNhcmNoaXYudW5pLWtvZWxuLmRlgiJ3d3cud2lydHNjaGFmdHNh cmNoaXYudW5pLWtvZWxuLmRlMEwGA1UdIARFMEMwCAYGZ4EMAQIBMDcGCysGAQQB gt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5cHQub3Jn MIIBAwYKKwYBBAHWeQIEAgSB9ASB8QDvAHUAY/Lbzeg7zCzPC3KEJ1drM6SNYXeP vXWmOLHHaFRL2I0AAAFpfid/LgAABAMARjBEAiACMEGkZOMRtk7+qgoR+VW9U5FP D3MSgl4g+xIsLTKLxwIgV9fW7LANtV/q8UYSnGaHGCs2AlA3Nz389xjqDwLwJikA dgDiaUuuJujpQAnohhu2O4PUPuf+dIj7pI8okwGd3fHb/gAAAWl+J4DNAAAEAwBH MEUCIAacgV3E5Hp45y0Wz+RWZUQsav0XlEunrxhiPWQ4cZKrAiEAqRYZzIHrSbVr 58/YgYzNpFip7JJ6YR0nJzpNdmBoKXwwDQYJKoZIhvcNAQELBQADggEBAElIIzHt E86jda2igQOIIrCLLWYfzzAoXHNNDFZD4XuLw+1MDVxmo6Iq99bv17au/EJGgsCy T0jhdmditBzH5lShNnQQEWfHvdF37K5vEV9N7fINr8W1JYOEWGtVRF0xtBKHRGvY OtZkSaT/miso42cFijfBaC/Pp21zXPX+ct7Cd0ISw1uziGnm5UJ42GvvDCe/bfx6 +lTq4yKqNfAqxy97HPSbl6TXxZgKmFjkpC4jjiK5KiJsyV2WR79ASfZk7jwBxFvX gVjmBRlX5BvWhwxUL3AfCSbzX4w8tworWbjCM+BV5HJBBB6I11TeKNxYHErahtdd KPTdrn9B4UtUJCA= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAvHq1+e/3osXC2HjoXsXL AHDc+gZzUQlR43rZ0w/kJY8jEX74gubBuFxOYK37Jdk/Iy4Mv86jZGbw4WH3qkYV vpjJuVTyGIjQA7D+/W24VmdTA39YViGrCExRU0eHX5iajVoLLRjMLP2iIGY2xWKB 1Vaoae/yq7F89vcLtJUUoeiawTwWwjX65KY7heIo8sVSwQ+VbGLxHjxyTumH7K3B qxy3MJ0uKUy3FAg9jmv/Ncgl+zc1NBNwL7uuIRroY6h/xXMZn5gep0a7IsPCqLrL vgskrgNZj5VcGNyjlu+IEGLoKBnk5hycy382cx6gyBY/roLsAGAx+1zgjzatMULn wWceaO6GdyFaqDWAv5WjwtqUAiZciCLiXmV8FssRptD7dm+1snlKd4aIzg7bVhRL yAJeeMO44EfU6gFkTuMHh5FbBWzle3tJQW5OgGGV34oErtgROUruWjBmbiI9mldY 7NRDwzEik0XNhQ1mPZn5/U7gtSx3lhP6Q7+0aYaDsuNqmAKyscg4pNkMJh/BaxBy pyJAgaBrY+h/9gsy6QjP5RsBx5OLhkKdS3tBjEuyWOl6Uw4xvKjoS/j9EpbhGLBo HoZGQKBqudMaQthBL3c+3fWfZWP9ypT/kokaM12gyfZUzie/8NVF1F2O2L2WepuH IlRxHCOiQ6tdEU8eXi6Rr/UCAwEAAQ== -----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 264705286016403620053247682729008392606122 . . . . . . . . [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 2019-03-14 20:41:51 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-06-12 20:41:51 +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 'wirtschaftsarchiv.uni-koeln.de' . . . . . . . . [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 768928618267674095683211707372017761705912959532727051635564338800812734578662971782519891858433847863995458686142407287058509949549285650576486499390215083217525928159666688795792512181796635054523884575215971807328507435652656847470193721319431030831022548849958400877609620585901574327106030525771655029619014075212228224151374261151970871769276436803270028558996588601242506313203860478680891173909015790079626540658656232051911688939769361739679451195554387943090391146566819188428112478237477336737298921636143792380208435956823309306332716855905930261085527033714690784912143909407567105630490521244466535684866583627879190007472909159402028975120004605131081342794851367105243564463652028180305104977436993347257206925020259071444903051141430010337159048425052536523102305056602530333719825183013260460595951674157952844726505150864207178705339478084385859811331444367133852834385683082525903521986378835838760232330484335206455526775591130914873184633191629761388367081367154495058277878295148154389948322731779409769714093426387009008204954957428763350898965751109658214160256980448870246323181574648032145540237745422494036157092393340506531282275943395654968059979011872225984732072157076477259046359116155355393388818421 . . . . . . . . . . . . . . . . . . . . [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) 2733288a0b8d43489fe518bebef21d1aadf87629 . . . . . . . . . . . . . . . . [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 (70 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'wirtschaftsarchiv.uni-koeln.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.wirtschaftsarchiv.uni-koeln.de' . . . . . . . . . . . . . . . . [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) 00ef00750063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d000001697e277f2e00000403004630440220023041a464e311b64efeaa0a11f955bd53914f0f7312825e20fb122c2d328bc7022057d7d6ecb00db55feaf146129c6687182b36025037373dfcf718ea0f02f02629007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe000001697e2780cd00000403004730450220069c815dc4e47a78e72d16cfe45665442c6afd17944ba7af18623d64387192ab022100a91619cc81eb49b56be7cfd8818ccda458a9ec927a611d27273a4d766068297c . . . . [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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