DV SSL/TLS Certificate for ufiakra.pl

Certificate is witin its validity period

Issued by Let's Encrypt (R11)

About the ufiakra.pl DV SSL/TLS Certificate

This certificate with serial number 05:31:ce:84:86:60:be:72:5e:ec:44:20:f5:12:17:71:59:ba for ufiakra.pl was issued on by Let's Encrypt.

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 ufiakra.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)

Let's Encrypt

Organization: Let's Encrypt
Country: US

This X.509 certificate will expire on

Certificate Details

Serial Number (hex): 05:31:ce:84:86:60:be:72:5e:ec:44:20:f5:12:17:71:59:ba
Serial Number (int): 452509774713751968118253498589642667153850
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: 22:47:b9:07:b4:4e:b4:71:b3:27:e6:06:7b:0f:39:e0:95:a2:da:4c
Authority Key Identifier: c5:cf:46:a4:ea:f4:c3:c0:7a:6c:95:c4:2d:b0:5e:92:2f:26:e3:b9

Fingerprint (SHA-1): 67:60:da:98:cb:c9:f0:db:78:93:8f:5a:14:45:61:2b:ba:17:a1:14
Fingerprint (SHA-256): dd:3b:c6:b3:45:b5:fe:24:85:cb:b9:8c:74:a7:71:12:79:c7:34:f1:30:4f:c1:24:17:a5:46:1e:30:cc:84:ac

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

Revocation Information

CRL Distribution Point: http://r11.c.lencr.org/59.crl

Check the revocation status for certificate ufiakra.pl
2
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for ufiakra.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
10
CA Certificate
This is not a CA certificate

Subject Alternative Names

X.509 Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsxhPH7Rapx0azhqm9/2C
TsVhNPL8pBCimagLo0fkNBhmLKq3sIcz5Tqh/CVVdzJF3tl818HdGBR4LPmKJznE
Ta5NITpiGCdDxMlqve0AJ7r8b/iGCvAIt7OgPCZXChI1Rb4X0Um4y4S/nz6xVWst
ZWEDceNtg1IUALZ0EbmBXzNRoJZU6+esV1DtJOeXn7z4yW92Wt7puNxN0KhIZ5SC
UHqyF8WWupskLpvgtK8fI+d+lOlIYCdll81kEkcgoxkWbOjiAei2Ck8UoZFyL77I
NG2ZgwrVpyO1yUVYG5Awx+RwuLvQa9nqZ+jd8+TS33duUv5ZcJdbIlX6RSNDUsQD
WwIDAQAB
-----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 452509774713751968118253498589642667153850
 . . . . . . . . [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 '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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R11'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-07-03 12:17:34 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-10-01 12:17:33 +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 'ufiakra.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 22608643841821824497717118642623830920442861592398030779890226554507223984350046014689588474578611781405964115809400394690606495349111420734748997981895988227350342855561961653084417916974531120650434630445575289493260569540832737636859062628211131901013316082830136118350256021227588355792874386732953591720419401844998329480722114784891364833948421931653290795502501798363527405533543659245584439014007308956717254184209314088472406692434255934572989289845818722428757822912579440425002909271878343358314378764944984132546742135879344761483207808803559704217399207326386400399012516396700001427201910596767817401179
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.19
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.14
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							2247b907b44eb471b327e6067b0f39e095a2da4c
 . . . . . . . . . . . . . . . . [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 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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (39 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://r11.i.lencr.org/'
 . . . . . . . . . . . . . . . . [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 'ufiakra.pl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.ufiakra.pl'
 . . . . . . . . . . . . . . . . [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 (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
 . . . . . . . . . . . . . . . . [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 (39 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://r11.c.lencr.org/59.crl'
 . . . . . . . . . . . . . . . . [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)
							00f0007600ed3c4bd6e806c2a4a20057dbcb24e23801df512fedc486c5700f20ddb73e3fe000000197d06e14b50000040300473045022100db8be1f4e25db4632aaad685b85017012e6b35e07010ca6a3db4819c74cbf9af022076df648e5b8300bfd3f65f0f61b0190e862220071ca11931ce98da09d95ad4b40076001a04ff49d0541d40aff6a0c3bff1d8c4672f4eecee234068986b17402edc897d00000197d06e14fa0000040300473045022100cd52f03a9d30de4f71697c32712f22f4ee836da69cfb2a83067f21908650b47702200aed1e949635b41e458665261981bab2fd5c76815518631be3271e56d98d8bc0
 . . . . [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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