DV SSL/TLS Certificate for *.progreso.pl

Certificate is witin its validity period

Issued by Let's Encrypt (R11)

About the *.progreso.pl DV SSL/TLS Certificate

This certificate with serial number 06:a1:f5:6a:35:a5:bd:92:2e:bf:14:53:6e:9d:48:44:47:50 for *.progreso.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 *.progreso.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): 06:a1:f5:6a:35:a5:bd:92:2e:bf:14:53:6e:9d:48:44:47:50
Serial Number (int): 577785388995365906777108462866085628364624
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: 40:db:e4:64:5e:46:f2:ef:cd:d1:7a:d3:6e:88:10:24:25:45:76:f7
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): 59:1f:58:2d:1d:50:23:5b:99:bc:9d:e2:7c:af:19:18:c6:17:69:d7
Fingerprint (SHA-256): be:28:53:6b:f0:12:ce:24:64:05:22:16:ee:74:66:ff:24:c4:08:46:22:e1:ca:6f:78:f9:06:f2:49:86:55:76

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

Revocation Information

CRL Distribution Point: http://r11.c.lencr.org/81.crl

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

Advanced Certificate Properties

Technical details of the X.509 certificate for *.progreso.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 *.progreso.pl in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAya/F6kMKEY+0dqGiiPWM
UEfnHW7XJ0GlZwUl2uxCQVW5I12Mnkma/i8XNEqg2VPeutM/XFBTUsBi3E6TEyw8
pIjXfcvHeE6JRXWScdf/yZn2iNxqpNG7ltHAtX09CI7TBexC6QVUqCLSZ2PK3MzJ
Gc6cjh+IR1GoiyrQB6R/oolsxAcNz+Er9cOHkIMBnqlWTbY5UpbW5c7MxvBQsA/K
wsuGsV6QWx4fCX6O90dh5shRDt6dQ3iVicey8QeWsMyBZBxjH/m5mVTpVnWIVcm4
lqNclz7pVOYo1/VwIDXEU6pQZgM4BqVuW27QqglVMNnEYXuhDEm37Mw1ddgi7w7Q
jwIDAQAB
-----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 577785388995365906777108462866085628364624
 . . . . . . . . [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 2025-05-21 02:56:34 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-08-19 02:56:33 +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:12|false] UTF8String '*.progreso.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 25460576247143122105153738578283375756202687651808630112003269641445339831350563720197323321940663798159690483087571071928591542333053314309851099906792903585395339848165315766632593011408578166232843232449515462324015648207708138656374518241872835447884428667249091048153403696454272282359056510376086250866695766186583180237123537827304508150298969031217754460522282852750838725406286070825835962372210483880137432204441007920364437898001670862632370834744958961384388337647942361447859241455537971562620144321728502158266503511226951352740106644910453356375353210253310047816985097325903883183481785394269812347023
 . . . . . . . . . . . . . . . . . . . . [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)
							40dbe4645e46f2efcdd17ad36e881024254576f7
 . . . . . . . . . . . . . . . . [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 '*.progreso.pl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'progreso.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/81.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)
							00f1007700a442c506496061548f0fd4ea9cfb7a2d26454d87a97f2fdf4559f6274f3a845400000196f0fb06900000040300483046022100b2f294b8fbe71ebc164d972027d0c016557d550b72ab4938db84aecd6e21b21d022100a6e81c2a7a01bb4137afcefe646caaff6f14f9c37454140d973f3bbf25d50844007600ccfb0f6a85710965fe959b53cee9b27c22e9855c0d978db6a97e54c0fe4c0db000000196f0fb06bd0000040300473045022035bd89dbaa37a3e1875ae0b8190852467ac06ca441b1c04c87b0f35bb2ddaccf022100d7ae2ea8d243e1c653e22a240627664f1a4d37d20e088e0461902b6bca15be08
 . . . . [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)
		00813fc5ac69c6e76a83c02749971fbbb0f54861abfa995746ad3ba7550026dc9dfa82086cbaf84351ebcd79d2e78c88fea179ac6a299a934448c12f482c4bdd23a048e57a9b9e06da0fd53e9a118259b29266994c899e069e686885e20d9e2b84eb76ceef2718e76f831929012b229b698fab9196dcae33c982392d63962f5e335f888e8d88b6f1de8cf18201ce403ffffd0702a186b165eb94da48dce5c70fe2cd4133c57dc4bd25112369ff3bcea43c047db9e56fdeb9036e4adc830898fab6a8ea5183cdf4f0540f0d01f7be0dd8d24b35b8e98406b8233984ab316298296af6dfa7d5d37e86e51174c7c0e3b1f7393b1276717d0d447623b581157560f8a6