htk.org

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:0f:bc:cf:a1:c1:d9:b5:31:52:70:01:3c:f3:42:b1:e6:0d 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): 03:0f:bc:cf:a1:c1:d9:b5:31:52:70:01:3c:f3:42:b1:e6:0d
Serial Number (int): 266692066248578456634040538171682218698253
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 47:ec:cb:22:b5:0f:82:e0:91:b5:f3:bf:59:2b:08:8b:5e:8b:64:2d
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 61:25:f0:79:2a:da:93:2a:3f:50:15:a3:03:90:1f:b5:53:e5:7c:80
Fingerprint (sha256): 4d:2c:30:cb:7a:b0:5b:0c:8d:53:5d:9a:b1:10:cb:f0:81:39:11:44:c1:3e:42:3e:b9:6c:61:4c:71:00:4b:45

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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htk.org
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 266692066248578456634040538171682218698253
 . . . . . . . . [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 2020-02-14 10:35:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-14 10:35:00 +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 785411782416929433507348414314568711958858733033582819950151221777870085829696012737184645446563892844046634997381460825278246675968973307120326987704282322257987179272376044525197657474849809036484748500049553749969222629273599389363463704258648752616967474303218647296924333518254155473712242008853850149918504116662669424521506111578086631990205880017057549910889564537658669537512703202274710661876346619119496055126206161969823600819598519774031123890263232341090455169411033782852910371222947222969965162932722414703512458170803782376912887234559824911256294277376068037272949247055005338475956511050595532324104831756155523176598461031354136196740599583408868903990979688005401824680538629218514900735469997341529703047452343268083408883174151539842098958533131652085919958718263162332256345758460105340982393942044094369014222896402100705407013488914906144569274369597521966562197395401199475047133385776537494331034013145178084236363424341452166333635036619346876396135558846787756540741556350486243071990335299178367344788436267065130427801267789375907846005139703745733351154981914289828054944848263357650582551017091415451670025731492269991133814715624610829727406960429447686448137783017616145216661866480935476408955819
 . . . . . . . . . . . . . . . . . . . . [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)
							47eccb22b50f82e091b5f3bf592b088b5e8b642d
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e00000170437b0401000004030047304502207316c85e2013b35fd49fdf73f426a6d6472d9e1cb2cad7e0ab98a417215e700f022100c28140403f145ee9663df2323e8be7ef19659a8f5fbc41ed706afb25613b2923007600e712f2b0377e1a62fb8ec90c6184f1ea7b37cb561d11265bf3e0f34bf241546e00000170437b04010000040300473045022100ed8a245795ccc3a2f22769aa16a3361b5e05391ed06a16922d1e42fbb69b06a4022053daf9ed301ade39da033c2d87734f69b3aa3615674e6e369847f236034af6a2
 . . . . [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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