DV SSL/TLS Certificate for deltapunkt.pl

Certificate is witin its validity period

Issued by Let's Encrypt (E5)

About the deltapunkt.pl DV SSL/TLS Certificate

This certificate with serial number 05:d5:23:7e:fe:7b:ae:1f:ea:40:58:1a:24:fa:cb:55:39:c0 for deltapunkt.pl was issued on by Let's Encrypt.

With 3 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 deltapunkt.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:d5:23:7e:fe:7b:ae:1f:ea:40:58:1a:24:fa:cb:55:39:c0
Serial Number (int): 508088756183748765686059937326846189058496
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: 48:37:9e:d0:e7:fe:24:1d:3f:2b:d8:8e:0d:66:1b:b1:47:dc:25:f8
Authority Key Identifier: 9f:2b:5f:cf:3c:21:4f:9d:04:b7:ed:2b:2c:c4:c6:70:8b:d2:d7:0d

Fingerprint (SHA-1): 45:ce:df:67:e8:47:a5:84:06:fb:60:72:aa:ab:6a:1d:d8:32:15:05
Fingerprint (SHA-256): 20:6d:55:c5:6a:7d:1d:bd:99:00:7b:ba:1b:f0:8b:b5:9f:f7:20:f5:87:3b:6c:86:cd:15:5b:12:fe:ed:ac:ac

Issuing Certificate URL: http://e5.i.lencr.org/

Revocation Information

CRL Distribution Point: http://e5.c.lencr.org/65.crl

Check the revocation status for certificate deltapunkt.pl
3
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

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

Subject Alternative Names

X.509 Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MHYwEAYHKoZIzj0CAQYFK4EEACIDYgAELYYZKwGgMe8U/Skv4Wk7BEA+6yKECYVH
p07ttcYnP59sqjhfNqVZz6uk0D7H62GTcsOP/GmVj9bPNTDrZbK0g3VcNcs6vSPk
clvxVAvDlY4WJhcUVyLSfmf468bhNVc1
-----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 508088756183748765686059937326846189058496
 . . . . . . . . [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: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 'E5'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-06-12 21:56:30 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-09-10 21:56:29 +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 'deltapunkt.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)
				00042d86192b01a031ef14fd292fe1693b04403eeb2284098547a74eedb5c6273f9f6caa385f36a559cfaba4d03ec7eb619372c38ffc69958fd6cf3530eb65b2b483755c35cb3abd23e4725bf1540bc3958e162617145722d27e67f8ebc6e1355735
 . . . . . . . . [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 (1 bits)
							0780
 . . . . . . . . . . . . . . . . [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)
							48379ed0e7fe241d3f2bd88e0d661bb147dc25f8
 . . . . . . . . . . . . . . . . [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 9f2b5fcf3c214f9d04b7ed2b2cc4c6708bd2d70d
 . . . . . . . . . . . . . . . . [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 (38 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://e5.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 (56 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'deltapunkt.pl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.deltapunkt.pl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.deltapunkt.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 (38 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://e5.c.lencr.org/65.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007700ccfb0f6a85710965fe959b53cee9b27c22e9855c0d978db6a97e54c0fe4c0db000000197665a90b90000040300483046022100e9badd2eb19a50320e466bda08033d98f5beb051dead1a0bfec4529986803124022100fb3ca81922f96964ce52ce4312763470c3c4b79bbb282205b3389cfcedeede1f007600ed3c4bd6e806c2a4a20057dbcb24e23801df512fedc486c5700f20ddb73e3fe000000197665a981f00000403004730450220588e457d8200350828771b912453a4890f880dbdc493d931daab3b43f66aac0d022100f3af44ee31723fcd98c0114029cd0c7552e55e7394b4024cd98c16bc98b16f29
 . . . . [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 27497024368125677730731576228748293830879344079616098972839014925753031795671628448758553473798776572295350519776112
 . . . . . . . . . . . . [c:0|t:2|false] INTEGER 31413826191954755945332062660886721027234722282092671613435352098667689884144863844344316929827891615621806564515314