z-band.com

Issued by R3

About this certificate

This digital certificate with serial number 04:cd:31:05:5e:7a:14:6e:10:48:42:35:d0:78:01:29:bc:e8 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=z-band.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:cd:31:05:5e:7a:14:6e:10:48:42:35:d0:78:01:29:bc:e8
Serial Number (int): 418272188995329786477322475527931725200616
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: b1:8c:65:44:55:d9:07:52:c2:f3:bd:7c:a7:e1:14:f7:be:78:38:f5
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): dd:c4:a1:38:61:df:37:48:3e:f5:89:e3:c1:5f:e7:20:e1:e2:29:21
Fingerprint (sha256): a8:40:ec:c9:79:78:82:fd:5b:df:a4:7a:71:0f:8a:50:b8:25:c2:67:16:b7:a7:f3:32:46:2d:99:e6:2d:2d:85

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate z-band.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for z-band.com

Public Key Algorithm

RSA

Key Size

2048

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

z-band.com

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Certificate

The complete raw certificate details for 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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtiWIZ4rVrkyte0kJIQ3w
PbXLYpLhM8CE5Bxf6P4u8gMvMuQ2HCJwj9raqaAZ9NE9IZ0QlDMw883/nO6vsEb8
JzxIAcwMLSmkSBqgzIfTW9wGLExJGXgKR7Q4zkjQkpClA2EaEU6v0yx8XRobd62x
LEhE+14OU4SUV1eBAjn9fd7qzuQSWqlEddXzQc3PyoZWpvw3H5CIP2O32s9AKful
OSAh0TQkDh/29gjZ73HVVQjaErMTUu9MpZDEw3CUzoUDXjB8epSskpN5+RrckP9K
LYsFlWsbZ19n165nfxwdp+QMv5buyMN7So6wqE70ueWuz4li47nTbnQaKpUUGgme
BwIDAQAB
-----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 418272188995329786477322475527931725200616
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-17 05:36:24 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-17 05:36:23 +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 '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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 22993879632068768327424418909027558220917455919345856305008534560854376406502498131703486283458153891336829238133000311451312143687800678072432381187263667906173544648599757351627605669130538124221041436989347870441175965803314406938057623344262753976926114010726123560647211543575469670623479831281576904084101404101745196972346791423534388240339552523587921998636770979233364600887017038362235126588570868083218091150412689033278000889188281383939667625498804050988683661502888253792408232112651645537777756619551653011310487252926165941725531760122776496278294835417264412235728949253993627704783440021935320833543
 . . . . . . . . . . . . . . . . . . . . [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)
							b18c654455d90752c2f3bd7ca7e114f7be7838f5
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (14 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee00750048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018db5c7c626000004030046304402207c23e45c87216d243346460f663b89cc2ff3effbf614d1cf6b57d05e12223bed02205495d72f912aa5548a9dfcc7ab987a863c39191281068c35d38ddbcc9e62dca900750076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018db5c7c67800000403004630440220615710b765f70d064dac9004c54268ae0548bd3204bc363a454011533d2e031602204f9f1c5f2899f552f3dc14993ea6db4bb40d1af75b974fafc73ab4220041206c
 . . . . [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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