zentronlabs.com

Issued by R11

About this certificate

This digital certificate with serial number 03:b4:82:03:ca:a4:07:4f:10:1d:5c:83:25:10:39:6a:4a:32 was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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=zentronlabs.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 03:b4:82:03:ca:a4:07:4f:10:1d:5c:83:25:10:39:6a:4a:32
Serial Number (int): 322760503167434698597524269845190491654706
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 8d:11:9f:9c:2d:c3:33:fb:58:fb:d5:79:60:44:a5:48:a3:73:28:66
AuthorityKeyId: c5:cf:46:a4:ea:f4:c3:c0:7a:6c:95:c4:2d:b0:5e:92:2f:26:e3:b9

Fingerprint (sha1): a4:2a:b1:15:cf:b3:72:77:a3:9f:d7:51:d2:cb:12:ab:80:3e:1a:a0
Fingerprint (sha256): 8b:d9:c9:d4:f5:ef:e8:f1:bc:ad:3d:73:61:32:c0:a9:98:92:66:d8:38:d2:67:7e:81:8a:cc:bd:82:69:ef:d3

Issuing Certificate URL: http://r11.i.lencr.org/

Revocation information

OCSP Server: http://r11.o.lencr.org

Check the revocation status for certificate zentronlabs.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for zentronlabs.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

www.zentronlabs.com
zentronlabs.com

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Certificate

The complete raw certificate details for zentronlabs.com in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAn4ZWyYjPO8uVLB2YkfbP
41LRdKI/FCBE6N4NuLoqr+Uj9/6elEdV+CJdeaRdvpN62xe0OiliQUDwndAQgDg7
NGWB1u9ODE2LLhj1c29hcUPkmE6yQpUM/2hUeAChz2WytI9kA49aj0t2Nv1X06fx
LKQJtfPqHBpXMMbA901yohKjAvNpol+KLS6Pxr04UlAwLWnmQFj99noDRjtjGTk4
XAKeKRrqS0JStvSvM5VT0eQj8zqynFIy9uAKwsTqkYtUpE7nKZFUiBdWMd7xALs4
jTeeuHFnl6HWtr2hJuWEdkgEY0+f3i7iciNEpcEDhsCsC2FL/sZ3L80FD+mCoBeK
IwIDAQAB
-----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 322760503167434698597524269845190491654706
 . . . . . . . . [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 'R11'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-13 03:08:38 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-09-11 03:08:37 +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 'zentronlabs.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 20138135525737740715321712289999756286987561900338797506530891184116555027827091810730753502552514999371125934041641810597597098307509481032801687452452887289679995176444196017566610960718608553588018831225123228541760752382061059577759396953382499507684452136978439517749613845442150839207470457106773585038503480748944593883232579389332530726366096346763303358554082863511008971845642440204377525281768683494347579715734950741798735797985403293355331570969075032419581806783083566675612572186208034886675660050605858134408348419791671571686589115133187972559344847449983815231788984454320413217817121279789562825251
 . . . . . . . . . . . . . . . . . . . . [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)
							8d119f9c2dc333fb58fbd5796044a548a3732866
 . . . . . . . . . . . . . . . . [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 c5cf46a4eaf4c3c07a6c95c42db05e922f26e3b9
 . . . . . . . . . . . . . . . . [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 (75 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://r11.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://r11.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 (40 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.zentronlabs.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'zentronlabs.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 (242 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (239 bytes)
							00ed0075003f174b4fd7224758941d651c84be0d12ed90377f1f856aebc1bf2885ecf8646e000001900fc8872a0000040300463044022018220babd7fc5f06b05fca2e8e0b4757851450a6212680fc562425f5195b9edb022025413a1343aaaac8c4c2ecf4c2e11d3e354a74d5d0b01fa3d7a5e700f2ef31f7007400dfe156ebaa05afb59c0f86718da8c0324eae56d96ea7f5a56a01d1c13bbe525c000001900fc888000000040300453043021f24c188003ce6e498a09b55dc98a810fff7057d2f90c393adf329cedffe5ef802204665d60d1e518abea98eb91fa3e1d6253624c445c965ed825350121f8fa302f2
 . . . . [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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