ontohub.org

Issued by R3

About this certificate

This digital certificate with serial number 04:d4:5a:4d:62:2b:b6:71:79:a5:6d:92:8a:56:47:6f:c3:55 was issued on by Let's Encrypt.

With 8 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=ontohub.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:d4:5a:4d:62:2b:b6:71:79:a5:6d:92:8a:56:47:6f:c3:55
Serial Number (int): 420709037831898106051859876312854809264981
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: ed:bf:38:b7:00:07:15:2e:eb:a3:24:c5:97:21:2b:73:34:0b:f4:d7
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): ef:a2:40:53:c1:36:0c:c1:b8:b3:d3:7b:be:2b:ef:9d:3a:39:ff:89
Fingerprint (sha256): 3c:61:a2:ef:22:5c:e7:59:bc:f5:b6:94:16:0b:41:a6:b4:af:4f:59:74:e1:92:66:fe:42:0b:5b:47:82:64:25

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate ontohub.org

8

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for ontohub.org

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

model-hub.org
ontohub.org
spechub.org
ta.iks.cs.ovgu.de
ta.iks.cs.uni-magdeburg.de
www.model-hub.org
www.ontohub.org
www.spechub.org

Other certificates including the domain name ontohub.org

(limited to 100 certificates)
ontohub.org
ontohub.org
develop.ontohub.org
ontohub.org
ontohub.org
ontohub.org
ontohub.org
ontohub.org
ontohub.org
ontohub.org
ontohub.org
ontohub.org
ontohub.org
ontohub.org
ontohub.org

Certificate

The complete raw certificate details for ontohub.org in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIFZTCCBE2gAwIBAgISBNRaTWIrtnF5pW2SilZHb8NVMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yMzA4MjQxOTM0MTBaFw0yMzExMjIxOTM0MDlaMBYxFDASBgNVBAMT
C29udG9odWIub3JnMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA5hXe
u41enRMdv97UHvczUzyRZMxjDj/eDe9qaitmtHDQzZpLc3cEck9l5UN3vvQJ2Eku
v7NNDD4NGTiw3LiqnHue42lOGG1xasQ3YjaUHJ7FaJgGrKJD8WgAlROSU2g0Y6OC
UCCG8CDTBMDeBuYYUH9HLZ9T/OjUVbpEQs/UOIBh5s1D2v+FUwMXGoLpt665VojT
akEEbjVBfVMGstczPVLkLN9oQvk4oKJgknfFdtzXauUKHyAfknJF/KA5c/Qel1gg
uFrrT3fH1Fh2+at0DVzz7kd5MErXnuHztNZQsYggCebRaw0AAH/D7Q1ua4XKskYl
90/1SOW+Lf7IiPXdoQIDAQABo4ICjzCCAoswDgYDVR0PAQH/BAQDAgWgMB0GA1Ud
JQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQW
BBTtvzi3AAcVLuujJMWXIStzNAv01zAfBgNVHSMEGDAWgBQULrMXt1hWy65QCUDm
H6+dixTCxjBVBggrBgEFBQcBAQRJMEcwIQYIKwYBBQUHMAGGFWh0dHA6Ly9yMy5v
LmxlbmNyLm9yZzAiBggrBgEFBQcwAoYWaHR0cDovL3IzLmkubGVuY3Iub3JnLzCB
mAYDVR0RBIGQMIGNgg1tb2RlbC1odWIub3JnggtvbnRvaHViLm9yZ4ILc3BlY2h1
Yi5vcmeCEXRhLmlrcy5jcy5vdmd1LmRlghp0YS5pa3MuY3MudW5pLW1hZ2RlYnVy
Zy5kZYIRd3d3Lm1vZGVsLWh1Yi5vcmeCD3d3dy5vbnRvaHViLm9yZ4IPd3d3LnNw
ZWNodWIub3JnMBMGA1UdIAQMMAowCAYGZ4EMAQIBMIIBAwYKKwYBBAHWeQIEAgSB
9ASB8QDvAHUAtz77JN+cTbp18jnFulj0bF38Qs96nzXEnh0JgSXttJkAAAGKKUEp
JgAABAMARjBEAiA2X2SyDkNjXZOfSwtl/84x0OWkjFG0Ck9fQdMgIiX21AIgJb4H
v9K1n+qRrrObDfyxh4HyzyEuS3J6QgUF5GimJRgAdgB6MoxU2LcttiDqOOBSHumE
FnAyE4VNO9IrwTpXo1LrUgAAAYopQSk2AAAEAwBHMEUCIQCLyKQy72W+N69pQWCO
HFBLUvifJGiRIH9DMdp8A6ZrBQIgFCg3PeBZa7HddhsXwMvOdqKAL+m0uO+E59BE
UJCVjxYwDQYJKoZIhvcNAQELBQADggEBAE31XgFl75Du7HSC0JlfclJhUPBQXJsT
AexKcTIYDQUf3TqZjiKNr/O999iEnSIdGvAo7ixNv4sjZlvhbPKINsZNlwWP0JIc
W3hfkvCNJPzrl0PbKQsKQlWIOuhZx5tXA7RyJ6bS49ZA6YUUOz+o59dRKZqXa84/
twyfXR8WdxcC36lFVpnhxmsmTD9bl6Ys+iT7LGrqJuxtY3pdmTlLVkVZXgUcqcUS
3VFLo/R26aQu7WhfcalXXbn8RP6IE4+XzIo3ZiJHNKwN5jzWFl+7tf809dopX287
is5KJinhAu9jO5RFBmpPGYDzhNAo8cJ7K8CLNvwOJ/Hz6od+uNCgLEI=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA5hXeu41enRMdv97UHvcz
UzyRZMxjDj/eDe9qaitmtHDQzZpLc3cEck9l5UN3vvQJ2Ekuv7NNDD4NGTiw3Liq
nHue42lOGG1xasQ3YjaUHJ7FaJgGrKJD8WgAlROSU2g0Y6OCUCCG8CDTBMDeBuYY
UH9HLZ9T/OjUVbpEQs/UOIBh5s1D2v+FUwMXGoLpt665VojTakEEbjVBfVMGstcz
PVLkLN9oQvk4oKJgknfFdtzXauUKHyAfknJF/KA5c/Qel1gguFrrT3fH1Fh2+at0
DVzz7kd5MErXnuHztNZQsYggCebRaw0AAH/D7Q1ua4XKskYl90/1SOW+Lf7IiPXd
oQIDAQAB
-----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 420709037831898106051859876312854809264981
 . . . . . . . . [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 2023-08-24 19:34:10 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-11-22 19:34:09 +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 'ontohub.org'
 . . . . . . . . [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 29045594665457782030125533873710521713665475310382860198588957144028893726618303202725359804712391141039174158695097129929491681017833800442916081304644694794437116425077659270130205548836364658421873853226972984287490570275049453513091427358622833802172920280475598040678831865785916084957695315483861397969176179477260033459930709470455713796818578368080516261202512167980525734063349836670956625032398960344029561546388399959118943297572331722023246200265127569704047509646688589314572567671379573899916699086928043325648215221574171664182552741349142882392255917907376497036019350547182074352855313287499427995041
 . . . . . . . . . . . . . . . . . . . . [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)
							edbf38b70007152eeba324c597212b73340bf4d7
 . . . . . . . . . . . . . . . . [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 (144 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'model-hub.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ontohub.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'spechub.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ta.iks.cs.ovgu.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ta.iks.cs.uni-magdeburg.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.model-hub.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.ontohub.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.spechub.org'
 . . . . . . . . . . . . . . . . [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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007500b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018a2941292600000403004630440220365f64b20e43635d939f4b0b65ffce31d0e5a48c51b40a4f5f41d3202225f6d4022025be07bfd2b59fea91aeb39b0dfcb18781f2cf212e4b727a420505e468a625180076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018a2941293600000403004730450221008bc8a432ef65be37af6941608e1c504b52f89f246891207f4331da7c03a66b0502201428373de0596bb1dd761b17c0cbce76a2802fe9b4b8ef84e7d0445090958f16
 . . . . [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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