htk.org

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:b1:7c:d8:e2:c7:52:da:61:83:f1:1c:a2:4c:b7:a5:64:b7 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=htk.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:b1:7c:d8:e2:c7:52:da:61:83:f1:1c:a2:4c:b7:a5:64:b7
Serial Number (int): 321732787147502237606650430215616796648631
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 0e:01:25:82:bf:33:74:03:41:7c:21:15:91:1a:c6:fe:49:cd:79:3d
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 48:9a:22:9c:4c:89:21:a2:0b:5a:33:c9:95:60:05:c9:c8:64:7e:5e
Fingerprint (sha256): 47:4f:0f:ea:52:1f:ab:08:56:be:87:7c:65:c8:99:20:1e:74:90:41:a7:41:b6:de:fb:2a:77:89:8d:8b:b3:08

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate htk.org

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for 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

htk.org

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www.htk.org
htk.org
htk.org
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www.htk.org

Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 321732787147502237606650430215616796648631
 . . . . . . . . [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 2019-10-09 17:44:33 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-07 17:44:33 +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 '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 964007100288570315740400033874562386840221688431863274617444274425257131056883436074296572461853877389010071140070904384884689765590980355702475247073494738295921049104459076110682206852319084774188345155529931161187249356864628477460976568916050728202992900111042101068973873227644570730376122062216456437935212485547220795066435650653156195816377906685115153002084764931156298675226731064558763674117657405139053338916553249430953982477467029685951635041425749768750076498852265610062882033438716064648807250985583555620001876744519157155868354335367682824399382778033089487413455777708213798182769443962075113488936181371219868335603831116428114166295015805206926451313195496037269393643102738562835382412041354263699626616256629109323273686935105424254780075857608612793442945695767192563793727143932595929255741380848350404802253476579071905335717284245824728485785581554926894189770926082003137310465274506449892563684793888564189739930801604595920851418772822671963006835944740649394140781590259916889336229827342276358758404409675588920627891647799261315875124717724704591144110690154122120265734261388832044322346150504037330175233587219669673550254978981797008022668650427560491005582344610759541384248973348919557586071453
 . . . . . . . . . . . . . . . . . . . . [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)
							0e012582bf337403417c2115911ac6fe49cd793d
 . . . . . . . . . . . . . . . . [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 (11 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f10077006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016db1d648600000040300483046022100eaf2c6671fe454e5d882effa7cbd02dfa69a980c42477d74bb0caeb12f022422022100949d7760bf627de059a1eb51559001b158b80b1cb2583bc6ced4c87ea32fb798007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016db1d648240000040300473045022100e33af2851210c1e6b3445bd8a4fd6a99b97e5a5065bae78495f101e7467c6520022044a44ba94ae879e29eeb06c28026ed74edcae9e6cd7944f279339b1eb985f63c
 . . . . [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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