jakubchmura.pl

Issued by R3

About this certificate

This digital certificate with serial number 04:c0:58:0c:33:43:bb:26:65:7c:16:95:7c:75:42:a1:e3:a7 was issued on by Let's Encrypt.

This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.


We have idenified some issues with this certificate:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • 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)

Certificate Subject

CN=jakubchmura.pl

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:c0:58:0c:33:43:bb:26:65:7c:16:95:7c:75:42:a1:e3:a7
Serial Number (int): 413900393586821643376167277526785785455527
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 0a:f1:34:02:f2:4f:ed:4d:f6:55:32:c9:e7:b5:fc:5b:04:c6:95:28
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 7a:ab:d6:6a:b2:f5:f7:54:5d:aa:05:53:51:9a:c7:00:e9:74:ce:c2
Fingerprint (sha256): b3:29:57:e5:c3:d7:e9:e0:35:79:68:2c:43:1e:ef:84:66:ac:aa:a2:f3:d7:2c:e9:dc:17:13:32:27:57:63:73

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate jakubchmura.pl

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for jakubchmura.pl

Public Key Algorithm

RSA

Key Size

4096

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication
Client Authentication

Extensions

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

jakubchmura.pl

Other certificates including the domain name jakubchmura.pl

(limited to 100 certificates)

Certificate

The complete raw certificate details for jakubchmura.pl in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 413900393586821643376167277526785785455527
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . . . . . [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 (countryName)
 . . . . . . . . . . . . . . . . . . . . [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 (organizationName)
 . . . . . . . . . . . . . . . . . . . . [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 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-20 10:02:45 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-20 10:02:44 +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 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'jakubchmura.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 (rsaEncryption)
 . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 939239806676776088320535647514911166054471675187425686709599618537899265490800644346987106574057229188274794181609727971066862304469276897582337982086802909589443210825936768616999035168558363903258337293948442947389554509764822241118638679455368664289547463104196443437944778730338803091391112772887498571205840605058891238097874462480440990659334139060473578713502235393233520880377700550591374767454668068177269888238368594043635897187989704777094914619075198789046580584373707377489669992237191938287184467463975534089443495387430711555517076886757537933500795093215642121542981968406246530340276741366150947847192240002500774849612778697763688534084025895470925006740418828360035634401385367479595511311804929990870974648397247257997030809144612775855919481472304974989631431086403941200219158262005011765602911091007308512380671639091456358997063828986638178847486626523497021196413415063100663454844581877126193184915354183968388383384926661796765051411820757696454529816783262583979935428662762471642004056484446525758172590527185235869642017898004244075845246106502931736926041757846873954364371074787286253564885130190119437001353925915927915290824586652647404765555318887016189058535149360731804942839870279168872231992783
 . . . . . . . . . . . . . . . . . . . . [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 (keyUsage)
 . . . . . . . . . . . . . . . . . . . . [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 (extKeyUsage)
 . . . . . . . . . . . . . . . . . . . . [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 (serverAuth)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints)
 . . . . . . . . . . . . . . . . . . . . [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 (subjectKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							0af13402f24fed4df65532c9e7b5fc5b04c69528
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (73 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 (ocsp)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r3.o.lencr.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r3.i.lencr.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (18 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'jakubchmura.pl'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies)
 . . . . . . . . . . . . . . . . . . . . [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 (Domain Validation Certificates Policy)
 . . . . . . . . . . . . . . . . [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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee00750048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018dc62eb1ed0000040300463044022045d5ac8c5a4123ff48d10677e00a5341355e0fade8f56e73fe76f05e0bc8dfac0220702619549fb0e7ec49e625763ce0f49b30ce52762c6d070da4d0bce31636914e007500a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018dc62eb1f4000004030046304402203b10c08b612fad4e314a7006a52f51ba3f6b0c15dbceb8114b4c9b6cb5ba54d10220265c832e2d7a900eca7120ac69f3de2cb5ead145cad22552000d44cbf28c6c0c
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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