DV SSL/TLS Certificate for www.zuh.net.pl

Certificate is witin its validity period

Issued by Sectigo Limited (Sectigo RSA Domain Validation Secure Server CA)

About the www.zuh.net.pl DV SSL/TLS Certificate

This certificate with serial number 7f:ce:0a:7c:5b:46:b9:53:48:5f:52:d2:e2:2b:d3:ce for www.zuh.net.pl was issued on by Sectigo Limited.

With 2 subject alternative names, this certificate can be used to secure multiple FQDNs. This DV SSL/TLS Certificate is currently within its validity period but we haven't checked the revocation status of this certificate, you can do this simply on revocationcheck.com. We have found some issues with the compliance of this certificate, they are be shown below. We hope this DV SSL/TLS Certificate review for www.zuh.net.pl provides you with the detailed information you were looking for.


We have identified some issues with this certificate:
  • 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)

Sectigo Limited

Organization: Sectigo Limited
State / Province: Greater Manchester
Locality: Salford
Country: GB

This X.509 certificate will expire on

Certificate Details

Serial Number (hex): 7f:ce:0a:7c:5b:46:b9:53:48:5f:52:d2:e2:2b:d3:ce
Serial Number (int): 169881781294179314510952372229037085646
Serial Number Length: 127 bits, 16 octets

Subject Key Identifier: 1e:57:c2:23:9c:a9:fa:87:38:74:ec:24:de:5b:ae:6e:09:4c:8d:00
Authority Key Identifier: 8d:8c:5e:c4:54:ad:8a:e1:77:e9:9b:f9:9b:05:e1:b8:01:8d:61:e1

Fingerprint (SHA-1): 8a:17:d7:e2:3c:8f:46:0f:20:3d:42:64:ae:9c:8b:7d:bf:2d:29:c7
Fingerprint (SHA-256): 97:30:40:84:cd:ea:91:58:ec:ed:ba:31:9e:55:f5:b0:01:1d:5c:4c:9a:ab:4c:17:f1:8a:9b:c2:1c:09:ef:44

Issuing Certificate URL: http://crt.sectigo.com/SectigoRSADomainValidationSecureServerCA.crt

Revocation Information

OCSP Server: http://ocsp.sectigo.com

Check the revocation status for certificate www.zuh.net.pl
2
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for www.zuh.net.pl

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
CA Certificate
This is not a CA certificate

Subject Alternative Names

X.509 Certificate

The complete raw X.509 certificate details for www.zuh.net.pl in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvcEXu2evHrVE2VZGfQwZ
DvFuIt0WH+7OtrqTWDTJ8sxfIac8Kkx/r851I8SwyR2MQtixnK+e8WCTKEVaa9YY
xAgmw5GF8rjVXaKLDxH4sRI2M2Sg0RUEECCq7cwSOEOE5cfqH+iM57xTmXGF2B/o
RAT9Cmj0hVJT4Sfc3x9IdksUzzckutI9H9WsteXlxnfL96tgJiOA2yPSRBggwEza
uut3NDsXbt+slZZhHlQSclVGyR684qWVis9PbhH244ySs9UiT6akyHUgAMMpXSRv
vbIkTrQF+pW5dR1zPFAYV8Ih4Ob0HQTsaesvh+AMtu4wlGAF/cjGXBHdyFMEGXGv
0wIDAQAB
-----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 169881781294179314510952372229037085646
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'GB'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.8
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Greater Manchester'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.7
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Salford'
 . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Sectigo Limited'
 . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Sectigo RSA Domain Validation Secure Server CA'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-01-08 00:00:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2026-02-07 23:59:59 +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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'www.zuh.net.pl'
 . . . . . . . . [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
 . . . . . . . . . . . . . . . . [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 23954257199401040955943359680680662157933110427934021073262632168187386330235632622313017091849390413160168930378527386755392981888520731878509590046439422245078414268989896355028944773050390726885902378109850141627405204824509628041304225812384486811550504142807921820353467774266587971696511927724921705846368857797400140277077635299788954498709152277721550395141527980122920396576540020874361446377080308841767041381812133533491590109049942011736516656297904781969420271393835583949210952290005899022592800414327303910444857374817496572090150628776596128298798868491126404212694792926861743370202631149482260148179
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.35
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 8d8c5ec454ad8ae177e99bf99b05e1b8018d61e1
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							1e57c2239ca9fa873874ec24de5bae6e094c8d00
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.19
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.37
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (66 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.6449.1.2.2.7
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'https://sectigo.com/CPS'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (120 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://crt.sectigo.com/SectigoRSADomainValidationSecureServerCA.crt'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://ocsp.sectigo.com'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (30 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.zuh.net.pl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'zuh.net.pl'
 . . . . . . . . . . . . . . . . [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 (366 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (362 bytes)
							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
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . [c:0|t:5|false] NULL []
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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