DV SSL/TLS Certificate for rb-event.pl

Certificate is witin its validity period

Issued by nazwa.pl Sp. z o.o. (nazwaSSL DV TLS G2 E29 CA)

About the rb-event.pl DV SSL/TLS Certificate

This certificate with serial number 25:13:2b:60:f1:d8:1f:4c:70:46:0e:67:e1:0b:6a:a1 for rb-event.pl was issued on by nazwa.pl Sp. z o.o..

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 rb-event.pl provides you with the detailed information you were looking for.


We have identified some issues with this certificate:
  • Sub certificates SHOULD include Subject Key Identifier in end entity certs (RFC 5280: 4.2 & 4.2.1.2)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

nazwa.pl Sp. z o.o.

Organization: nazwa.pl Sp. z o.o.
Country: PL

This X.509 certificate will expire on

Certificate Details

Serial Number (hex): 25:13:2b:60:f1:d8:1f:4c:70:46:0e:67:e1:0b:6a:a1
Serial Number (int): 49280969308717770560972189017926494881
Serial Number Length: 126 bits, 16 octets

Subject Key Identifier:
Authority Key Identifier: a0:ea:d4:0b:0f:49:fa:43:10:e4:5b:bf:c0:23:ff:5c:14:ce:a4:2c

Fingerprint (SHA-1): 9f:05:a2:7f:7f:cb:5c:76:2b:57:bd:f5:ed:77:4e:2e:1e:e6:d7:6e
Fingerprint (SHA-256): 38:d8:fb:93:32:dd:b3:e6:e1:fa:b6:4b:f9:65:38:60:9e:57:47:fd:3f:89:aa:d8:c9:ee:2c:5b:71:48:1b:19

Issuing Certificate URL: http://nazwassldvtlsg2e29ca.repository.certum.pl/nazwassldvtlsg2e29ca.cer

Revocation Information

OCSP Server: http://nazwassldvtlsg2e29ca.ocsp-certum.com
CRL Distribution Point: http://nazwassldvtlsg2e29ca.crl.certum.pl/nazwassldvtlsg2e29ca.crl

Check the revocation status for certificate rb-event.pl
2
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for rb-event.pl

Public Key Algorithm
ECDSA
Key Size
384
Signature Algorithm
ECDSA with SHA384
Key Usage
Digital Signature
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 rb-event.pl in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MHYwEAYHKoZIzj0CAQYFK4EEACIDYgAEwffGftMfqTDpi/nXmNnWmWSHZbv/RLmT
Mmy8FvfMs+T/u7hauHVf6ZH1YA8G90NNlON3wanGhWYfNpDv9vYyfxvL8GllxHeZ
nJEjEstTk1S6mbANfQkMireQYQFZlFNN
-----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 49280969308717770560972189017926494881
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.4.3.3
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 . . . . . . . . . . . . . . . . [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 'PL'
 . . . . . . . . . . . . [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:12|false] UTF8String 'nazwa.pl Sp. z o.o.'
 . . . . . . . . . . . . [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:12|false] UTF8String 'nazwaSSL DV TLS G2 E29 CA'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-06-20 11:15:14 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2026-06-19 00:00:00 +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:12|false] UTF8String 'rb-event.pl'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.2.1
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.132.0.34
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (776 bits)
				0004c1f7c67ed31fa930e98bf9d798d9d699648765bbff44b993326cbc16f7ccb3e4ffbbb85ab8755fe991f5600f06f7434d94e377c1a9c685661f3690eff6f6327f1bcbf06965c477999c912312cb539354ba99b00d7d090c8ab79061015994534d
 . . . . . . . . [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 2.5.29.19
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.31
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (76 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://nazwassldvtlsg2e29ca.crl.certum.pl/nazwassldvtlsg2e29ca.crl'
 . . . . . . . . . . . . . . . . [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 (147 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
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://nazwassldvtlsg2e29ca.ocsp-certum.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://nazwassldvtlsg2e29ca.repository.certum.pl/nazwassldvtlsg2e29ca.cer'
 . . . . . . . . . . . . . . . . [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 a0ead40b0f49fa4310e45bbfc023ff5c14cea42c
 . . . . . . . . . . . . . . . . [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 (26 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
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.616.1.113527.2.101.1
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37
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 . . . . . . . . . . . . . . . . . . . . . . . . [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 2.5.29.15
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (1 bits)
							0780
 . . . . . . . . . . . . . . . . [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 (32 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'rb-event.pl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.rb-event.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
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 . . . . . . . . . . . . . . . . . . . . . . . . [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 1.2.840.10045.4.3.3
 . . . . [c:0|t:3|false] BIT STRING (832 bits)
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:2|false] INTEGER 29863013753835531532651752933923421504624936980334017111854523171610070263040377243697790800202770911996247954603163
 . . . . . . . . . . . . [c:0|t:2|false] INTEGER 31114543211004599477003678283043964783894454752301790921436363419219241272445607271531654105061923117740597621150208