blog.z-band.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:56:66:ea:2f:d6:49:54:90:ee:bb:9f:ba:77:fc:57:b7:c0 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): 03:56:66:ea:2f:d6:49:54:90:ee:bb:9f:ba:77:fc:57:b7:c0
Serial Number (int): 290737938573767179156014681544829156440000
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: fd:4f:b7:31:85:d9:a8:f5:af:24:7b:a3:ec:ba:83:22:fd:75:7e:c6
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): bc:31:65:95:c9:0e:82:49:f3:06:2c:5b:09:c9:22:7f:a1:c6:d1:3d
Fingerprint (sha256): 99:ea:9b:9a:b4:f1:ba:9b:83:be:69:09:df:ae:7f:af:fe:39:c3:2c:fc:22:93:48:28:9b:af:ff:77:cb:36:e4

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 290737938573767179156014681544829156440000
 . . . . . . . . [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 2019-11-20 23:11:58 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-18 23:11:58 +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 932150989269196760199606178968967390705144536846316350512337217160178888826098102926723753347508185247786815860536251722566833209206745158773080580087134525829885376297424455843674267335433019594926352125326707778150947766589092829360585274320574108652171793758249010992901811572515839168171437299541271206233031999778565803434991712453716415969245031100705692857545435208506589654286559285938414579298572413413904244314767612103481816348512824093478297435134632772349792177333640929022013880108600508912721204371661134052734181775821413617676037494538395678562340253009515401926175112868755857987842255513773131734950215670737048563476417297755931275019305425454477134279630200610336034965863495459100856671761864222292568276041896041307537480705949720346083913567303373101692636553667923145429497129811494691768988077719496621945528772565134465373258905948454625518412734318013305181120980345071393765133950474031700217440851502236465837579496077255497731726960207979216130797613581654096713803601735792882475907653529279272258313456574177240310108817628762724429840515122240819167308825437476770113300548784515912026695727118619012748142327241669082831002941055266491858498016756608692173904278771597508563352071602238183726782869
 . . . . . . . . . . . . . . . . . . . . [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)
							fd4fb73185d9a8f5af247ba3ecba8322fd757ec6
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00077005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016e8b4d20f90000040300483046022100909940eb4f24c84f2c3494703ef7433b33dc3ca63ef17a514ed509c339ea26d702210085553d5f1a106483aa9b1080b639a47f8cb2fbdd355b35101b23f45844cb260200750007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016e8b4d2120000004030046304402200b8ebb2a4546698525955fc76e3e2c2378fef6f710f5c59559170258119b982b022058762a25573e69eb0b0bcb60a0108e6ee7d47a0739f3b5d17cdc0d27b179050d
 . . . . [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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