htk.org

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:ce:57:b5:c8:c1:06:4f:4e:6f:3e:ad:c0:91:63:f3:57:76 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): 04:ce:57:b5:c8:c1:06:4f:4e:6f:3e:ad:c0:91:63:f3:57:76
Serial Number (int): 418663898025893901425876632680022358054774
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 9e:3a:43:5d:cd:c2:9a:23:d9:82:a5:87:14:02:25:54:14:4e:e6:23
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 68:b3:bb:3e:92:54:8b:1c:bb:13:3e:8d:19:42:fe:7e:ff:26:17:00
Fingerprint (sha256): 83:58:33:47:84:d5:bd:82:16:16:4b:f0:3c:ec:f7:ff:08:aa:dd:cf:89:d5:6e:0c:18:93:5f:0a:4b:3d:03:45

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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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 418663898025893901425876632680022358054774
 . . . . . . . . [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 2019-12-09 14:41:39 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-08 14:41:39 +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 806760352643327771026395773642078372310326581304156657857000112782593689583697151159139261893607185945230896062707796061041337595301037634957864206542287401272514278802011632357369879832428906767982715686846596810267761559983021390598950907798455864745651628583554478084056921873520752482843463350626676538225736917725800094553904815090370329103090933283350314399942516889321441050527882493226412244643920577422023906573797428828662772794669022135070489548764730190948014664745701463893401375678193952412620777877512782115913459975097671372239074604019931068533281301575556831702123591968783474623655656425797199139423285398343138786872036469116718236203791882408856726723759493103632294387043356567361931804011296622576139060118031385938283915025059092679686956818409141388135056580057753322075214791154412339383187580009359294503954582701929871177308150897247980408022757113722398334863161762680808075223764255405067153609286337859728065964999437014759277834559168889634244505898351507888294770071928936989322735425515815187375011196077628261615363040192301673616042059439656354505715559135710904467587272192530651118409992386914898132828767427874935900088668932601220028255407176733265316990216068398700306308760328785309127089419
 . . . . . . . . . . . . . . . . . . . . [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)
							9e3a435dcdc29a23d982a58714022554144ee623
 . . . . . . . . . . . . . . . . [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)
							00f1007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016eeb52c2cc00000403004830460221008f5f907d4e37ebe7de4fc373b123a6567cecd9df13dc47d8279f854a3de39e86022100cd1d83ac1ca52e752f1825e9504d7138f23180f4e85aff7a50354c69b3f393170076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016eeb52c3010000040300473045022100cb8db6bf6fb07b5be7ac8bd33656bb6a52c18625b3ba2ae812c1d3870f22c5fd022006d60480cde1f76a11058e590b0424467a2e701f2ecfcb1a04616b60a5c30f1d
 . . . . [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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