*.nikolamezynska.pl

Issued by R3

About this certificate

This digital certificate with serial number 04:ad:4f:d2:c3:1e:df:fa:f6:18:d8:93:95:39:fb:03:64:19 was issued on by Let's Encrypt.

With 6 subject alternative names this certificate can be used to secure multiple fqdn's. 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=*.nikolamezynska.pl

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:ad:4f:d2:c3:1e:df:fa:f6:18:d8:93:95:39:fb:03:64:19
Serial Number (int): 407424096555886677571730006287869232243737
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: b6:9e:d9:28:20:9c:99:22:9e:24:c6:22:cd:17:3b:f0:fb:26:e5:6b
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): b8:cd:41:7e:56:2f:60:a1:1b:4b:27:c3:e9:95:8a:b6:2a:71:4a:77
Fingerprint (sha256): 02:e6:f1:12:b3:c5:78:08:34:f0:77:df:52:68:64:9e:f1:b2:14:72:14:56:6d:ed:25:78:79:9c:c2:1c:6c:5c

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

Revocation information

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

Check the revocation status for certificate *.nikolamezynska.pl

6

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for *.nikolamezynska.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

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

*.nikolamezynska.com
*.nikolamezynska.pl
*.nikolamezynska.xaa.pl
nikolamezynska.com
nikolamezynska.pl
nikolamezynska.xaa.pl

Other certificates including the domain name nikolamezynska.pl

(limited to 100 certificates)
*.nikolamezynska.pl
*.nikolamezynska.pl

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAt6zkfczP5vbNA/pRtTwZ
6T8EufqJgGDmQsabsXfsDmQjL8kB0v+NRcbKbsd5smUhj5R01jLQ3ESJ7DTjL/bU
DHWMrtinEUtdJiFMUnISTFwyAZdWfCpZhmyVjfoDPMlmd/xz0ZedWVmYmAtuENPR
gvp7a5pR9EAvtGzG3zWdPhWUknoi/eD41wcUDyrAyJ42D5qUmoglVHnlZ+hhGBpU
ckcCyp+xkiGSwZkbMnPKfPOsxz8eTobWLvJ6lJzD/dbv/qcF1lmtk7wkxR6ZCA6p
EAEqJ1fEHPF4T4OFnoSBijPoplglIvE9zbaxQ4Jc1H8Tg/4AIIBJksZ2WRYmicgh
fQIDAQAB
-----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 407424096555886677571730006287869232243737
 . . . . . . . . [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 2023-08-08 01:08:58 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-11-06 01:08:57 +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:12|false] UTF8String '*.nikolamezynska.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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 23186866300062427010478905630568590643225457548725557383675394820850021103536779272854339954060311634374170240283380618209887305123561761097485184246418902633015105763939741220725245840540530181080628113770381734458500915428450670675229870426036097868544211845812578129883078870190546509312811315837392381325204971083629406948531550502599557505548471757346702810438613738364503922303528242781846193729157627034703951493295199365983109570297961357751537797941838612163023270389724185881745327821278450151907295731553739814282906201033631965339592833180975474052186123880886286673562490365283599079547410189437431718269
 . . . . . . . . . . . . . . . . . . . . [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)
							b69ed928209c99229e24c622cd173bf0fb26e56b
 . . . . . . . . . . . . . . . . [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 (133 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.nikolamezynska.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.nikolamezynska.pl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.nikolamezynska.xaa.pl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'nikolamezynska.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'nikolamezynska.pl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'nikolamezynska.xaa.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00077007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb5200000189d2e792840000040300483046022100d05bc0be4a7a82514f4270b255545b6ee3fcf0788922cb0f1057c27394a36143022100bde320921a079a4f7a5583d8220d951e774e310f8175599ec51e75d2f429b222007500e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e00000189d2e7926c000004030046304402207e88b4e6e0f4039aa0d46f5ba212ccd34c86275f80e2aa4996d67b0fb176603002201726f83e3a61e4e2e07719489980ed6cdc449433fddf2a8baff4e0c4016983f9
 . . . . [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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