www.kala.boston

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:95:cd:8a:89:3e:c6:36:18:0d:91:ba:f9:b1:93:93:cd:3a 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.kala.boston

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:95:cd:8a:89:3e:c6:36:18:0d:91:ba:f9:b1:93:93:cd:3a
Serial Number (int): 312312141526266561759761759437790402301242
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: e5:a9:01:b6:51:64:79:c9:71:cc:73:bb:c7:01:aa:3f:92:e5:51:ab
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 34:7d:69:ce:b7:fd:e1:56:98:a3:67:12:33:36:b6:65:fb:50:f1:16
Fingerprint (sha256): 0d:d5:b8:4f:bf:27:6a:e3:81:e1:8f:2d:1d:4f:2a:2e:c0:a0:76:cb:cb:20:9d:f1:aa:34:01:1c:34:c0:a3:18

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 www.kala.boston

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.kala.boston

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.kala.boston

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www.kala.boston
www.kala.boston
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www.kala.boston
kala.boston

Certificate

The complete raw certificate details for www.kala.boston 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 312312141526266561759761759437790402301242
 . . . . . . . . [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 2019-06-17 14:27:36 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-09-15 14:27:36 +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.kala.boston'
 . . . . . . . . [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 782553040882733732709046094564549758737336726089327016913293493653955155350798820849372996718880817681807721584470088198952103700826272603922831516172717029943660017109157564864354234018981549063639295616137436474492672292607048513801950712087658927241015920536687683653953213404426330501416316827297334661104386411433142992288889179526918243403217797792296947248274937909460912243566023915109237046428383978288041936341803323254599806996907491393058804790446720355046537611644470084108770189024331222736259259935399826050601521343164781379846653764593267395953181018612996580579030324069509506272665800462035086234697606690434317099106384252277897777625177295784325494796141767423243203866258260284772030527190046228090153611277021017249494829153912177710592298149994157007284458162901828167121142466727262579083926623263026830902187268295085316997584165083892580045892209109116655408656750734197783253376101202867920533621667805483932139390321734212235355888685974106520567743997354634051752809401455833006443449289694105138940424184734064469266190883988050188524927440678475059012926417973874174819033860935634236841882462590922245187930998758709614991883543347654778506462159984890377913946832651466800608334750947217104052156377
 . . . . . . . . . . . . . . . . . . . . [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)
							e5a901b6516479c971cc73bbc701aa3f92e551ab
 . . . . . . . . . . . . . . . . [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 (19 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.kala.boston'
 . . . . . . . . . . . . . . . . [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)
							00f0007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016b660d01450000040300473045022023619651fd5b1d187c0814073c852e05cc6f5a1157d713b7922b87834a1e2a8c022100d6585a4ff17b9541274664ac1deda7b3f51e9e2b7eefd34e1862b8b3822b11b200760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016b660cff690000040300473045022100dfce3ea8ccf508ae9089fa03398bdfed7a336e92d96ada57a7d357059b8ea63a022034542f4000a1bb6cc22701b6db04228582d83399047416ef2b685dc391226586
 . . . . [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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