www.htk.org
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:77:6e:bf:13:aa:35:62:8b:50:fb:68:da:65:34:a8:38:50 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=www.htk.org
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:77:6e:bf:13:aa:35:62:8b:50:fb:68:da:65:34:a8:38:50Serial Number (int): 301977666665959829925070070476016659740752
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 23:02:75:1f:47:8a:3b:30:a0:b9:34:e0:d8:70:24:d0:11:c3:c5:8e
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 97:26:29:7b:80:c2:93:f5:a8:42:ea:11:2c:c8:72:ec:50:07:20:21
Fingerprint (sha256): f8:72:7f:37:52:c4:db:bc:27:93:a0:ad:c3:10:b8:cf:51:3e:30:b8:72:b9:5e:7c:bb:db:21:de:2d:ed:d4:ad
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate www.htk.org
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.htk.org
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.htk.org
Other certificates including the domain name htk.org
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.htk.org in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGUDCCBTigAwIBAgISA3duvxOqNWKLUPto2mU0qDhQMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAyMjIyMjM3MjBaFw0y MDA1MjIyMjM3MjBaMBYxFDASBgNVBAMTC3d3dy5odGsub3JnMIICIjANBgkqhkiG 9w0BAQEFAAOCAg8AMIICCgKCAgEAnpbc7rpgBghLUkwBy9479qW9pIKmT9XGn/sL yW/EG8EbjTC6W9Ww6LawhdRy0XqCEfdOVA4bcOdqwfigTW/2dDTNPm6olEImut8b O85qc2El54qOQJUxHEBVcKkyIhH94UDa3MRNopS+HjMeUf2KhnyD0gHfT1SoGF4d +dSbwyfuN0C4ljFeM7JfJk5dzFP0ccPRQavCc+ZRjk6zuieKqOedVTt7XcZwv2Dt hsN8GyCTWNlCw+RZFL8TwvGpmSQ8OMFUG+02Tv+sVM2wgKRK/DvozoK2qHg26LIq EdSZLbSFriUpxBZbfAEqcSzNeGs3EQOq9EhLIsIJUIlH+K5/bfZpwgFesFzTU9Bn DO7K/eVbOlxaN1JSzJUZ9EN8mY7wl4g0SclrRUwY1tvqampmdxuf7UGRLy1CwKNK 1DZSSdITJyramPpYErjuRqPtFTgkR697F4FODI0Q6ekHtdXPoqTuxrWvbraSgfqA 2+qM93W2sc4feMdzVnGtx+Ft+s2edXz+QWxKGDRdrtYj7aE4FeMZYKFSuwrTAeIP eeh+HYJ4oGfSr1ty10vqpN1Rd0U9z0SFLb1uagxwxD1OgqBFf0XKIORW/KSXre8E 1KIQu+77hUwVf/fMa4U4AtSaowDLYSnUNVUJhSIzdDniEFgvUju1I0ogXiNsmbvQ eTScMYMCAwEAAaOCAmIwggJeMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggr BgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUIwJ1H0eK OzCguTTg2HAk0BHDxY4wHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEw bwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMu bGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMu bGV0c2VuY3J5cHQub3JnLzAWBgNVHREEDzANggt3d3cuaHRrLm9yZzBMBgNVHSAE RTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRw Oi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQYGCisGAQQB1nkCBAIEgfcEgfQA8gB3 AF6nc/nfVsDntTZIfdBJ4DJ6kZoMhKESEoQYdZaBcUVYAAABcG9DNWQAAAQDAEgw RgIhAOn8YeLx2jxxerNbqo3g5GklMCf/FtK6g0FSv8JcOUi0AiEAgy3Jo/JzhfMt 2kFOQUT7uYXcgzlxJzHJ2NsQjIai8ZcAdwCyHgXMi6LNiiBOh2b5K7mKJSBna9r6 cOeySVMt74uQXgAAAXBvQzVPAAAEAwBIMEYCIQDPTKaShzBVbnZP+Luwe7bRkbcg kaGm8ekv49hSBFJLFgIhAPiH7m+ie9T2AjfRiTI8dXebc87sIdgs2X2GCiZuKiZ5 MA0GCSqGSIb3DQEBCwUAA4IBAQABX7T3jSNWMfdn05dMIdr2btFUIKuMm/HRiQbh GxK0TdI9hR4ydMwDm5DSj5N6UKLh8pMtUVDA//3m1+BkKzhEP9p1HD+m7NGECYBX ruxgLA2ikE95SQjKXEw7+hqz3dUfXhEA25ypMyle0hq/ts22zYjo8fHNxuod3Y80 OwrSYFA4MgkorfDZYjzZCRnnM3jfAbO2C8bSXmuqhhaPavRNSnrp090N3UZXCCFn iPjmBBZ4GxKEEs3fd3M3S7gNrqXQLdHODhSRXT/4aWOIm/ix7Fjlv9b9JDu41+ix shBZJ8j0gQw2h4NScmmEn1ISx1ATil50wbYpE5jFSUDb9sE3 -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAnpbc7rpgBghLUkwBy947 9qW9pIKmT9XGn/sLyW/EG8EbjTC6W9Ww6LawhdRy0XqCEfdOVA4bcOdqwfigTW/2 dDTNPm6olEImut8bO85qc2El54qOQJUxHEBVcKkyIhH94UDa3MRNopS+HjMeUf2K hnyD0gHfT1SoGF4d+dSbwyfuN0C4ljFeM7JfJk5dzFP0ccPRQavCc+ZRjk6zuieK qOedVTt7XcZwv2DthsN8GyCTWNlCw+RZFL8TwvGpmSQ8OMFUG+02Tv+sVM2wgKRK /DvozoK2qHg26LIqEdSZLbSFriUpxBZbfAEqcSzNeGs3EQOq9EhLIsIJUIlH+K5/ bfZpwgFesFzTU9BnDO7K/eVbOlxaN1JSzJUZ9EN8mY7wl4g0SclrRUwY1tvqampm dxuf7UGRLy1CwKNK1DZSSdITJyramPpYErjuRqPtFTgkR697F4FODI0Q6ekHtdXP oqTuxrWvbraSgfqA2+qM93W2sc4feMdzVnGtx+Ft+s2edXz+QWxKGDRdrtYj7aE4 FeMZYKFSuwrTAeIPeeh+HYJ4oGfSr1ty10vqpN1Rd0U9z0SFLb1uagxwxD1OgqBF f0XKIORW/KSXre8E1KIQu+77hUwVf/fMa4U4AtSaowDLYSnUNVUJhSIzdDniEFgv Uju1I0ogXiNsmbvQeTScMYMCAwEAAQ== -----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 301977666665959829925070070476016659740752 . . . . . . . . [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 2020-02-22 22:37:20 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-22 22:37:20 +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 'www.htk.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 (4208 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 646987932337984522758044090805810516885831539770348778983845025412898126360155599559297068332581624740691467486147214603805960120658024575063039421747010256899246765869395579096808545143901883314787128826329050393926997157976376876688811351348881080563346308477942318000776720930723781656124083637269366855436809203637093051844893256767338999033272549870139346258810132989216972873359260753731173153655290821882119335898433536342645812043285056727877954871699907561135552774632682514167686855568318356021675902669919921510143738797477638528187899001884041889088317882296298526945201472936898030716494630199969035707686663189534155985543167241678271913480813927388423755966675746182471939153581872227159135386290153953812498314524770056527502550284834418034203535687858002432732097204510509209143644367534686333809224566810884655092828981139412688680458220939040711549127817562236669675671302944412331924909481510345011007899396069539240052388101844505440307523083236150274868530904600712113545863837303899113797234995989762897245479346526718455602657164081442042709487917121099956438918498042125096666706123795737306543079020690197664813585003441023024720681721793499150383360421680148626840996930502834838549830183968045953965633923 . . . . . . . . . . . . . . . . . . . . [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) 2302751f478a3b30a0b934e0d87024d011c3c58e . . . . . . . . . . . . . . . . [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 (15 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.htk.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 (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 (247 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes) 00f20077005ea773f9df56c0e7b536487dd049e0327a919a0c84a112128418759681714558000001706f4335640000040300483046022100e9fc61e2f1da3c717ab35baa8de0e469253027ff16d2ba834152bfc25c3948b4022100832dc9a3f27385f32dda414e4144fbb985dc8339712731c9d8db108c86a2f197007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e000001706f43354f0000040300483046022100cf4ca6928730556e764ff8bbb07bb6d191b72091a1a6f1e92fe3d85204524b16022100f887ee6fa27bd4f60237d189323c75779b73ceec21d82cd97d860a266e2a2679 . . . . [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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