blog.z-band.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:78:81:5d:29:64:23:8c:99:5f:f8:ca:d9:0c:9e:b6:c1:2f 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=blog.z-band.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:78:81:5d:29:64:23:8c:99:5f:f8:ca:d9:0c:9e:b6:c1:2f
Serial Number (int): 389454981892130312039070449561532192178479
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 8e:fe:ac:6e:13:d8:97:52:3e:47:2d:6d:a6:89:04:5b:98:10:99:e1
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): a4:3a:7c:fb:4f:f1:34:93:5b:83:6a:2a:04:98:76:6f:97:ef:58:6e
Fingerprint (sha256): 29:7f:09:cb:42:49:bf:13:e0:ff:60:3b:68:dd:7c:b3:3a:11:bd:ad:c4:e0:23:97:99:bc:2d:e3:2a:15:b4:cb

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 blog.z-band.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for blog.z-band.com

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

blog.z-band.com

Other certificates including the domain name z-band.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for blog.z-band.com 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 389454981892130312039070449561532192178479
 . . . . . . . . [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 2020-02-01 19:11:59 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-01 19:11:59 +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 'blog.z-band.com'
 . . . . . . . . [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 882915037425954985577006898133364625911050707592242920038671250497975633603578742737971779527561617171695649239291245037348769056195460275922693625626305287485727540215540697191787305271693945313038055684435346986253233308458145814139355284287071717547857170348468922645614470373865528345217335511546901820741952721101501264711428884313301557619902933299045783688891869123243499263892532562559388827840550582966241966435970610493314992421319401922613688894530372358196621852451646187156870835703312498538170885239659571033460809320785708433921489075581187829148787331383878775799012737816784577990207067694121852040609257088019557443774699155386967913396032614237387175289123685091087528910818617707982377018905937727360957015822506234622983258103973086791785401347938951991796811820932153076257882375830935598597478525389036651087511960443497194453426073755423896087735267560392329108055373100530227634370895301649862588586403426582437726141839021173495754607866117777860721701480882150997898735159971670530646190554362023459605575513249155518035590544361457428851156056459368863156157383866634609597748570796833651959015607672653931616548606046641623804981908632717893544010400484866524598609920686678821871919427947350237217223893
 . . . . . . . . . . . . . . . . . . . . [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)
							8efeac6e13d897523e472d6da689045b981099e1
 . . . . . . . . . . . . . . . . [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 'blog.z-band.com'
 . . . . . . . . . . . . . . . . [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)
							00f1007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e000001700261a791000004030047304502207ad37a3a020ac058f4970ae1ff3f6536cfdd03d32613141386452c5fed1e9441022100cdc06eb3829ce155bd0796a6e7529fb4bc5139ad169daedb820dfd84da49bcc80077006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d913000001700261a7c80000040300483046022100ae9b21a0ec4184099155c9cc6c3bf6d1cd806cce198711874980b7939216669d022100fed92fd3cb3116124436af66c1468cb2af68646cdb28fa3515c58100b42dc24f
 . . . . [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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