r-br.pl

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:8f:57:a9:10:2d:4a:cd:e1:88:5c:81:41:a6:73:b2:6c:9f was issued on by Let's Encrypt.

With 5 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=r-br.pl

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:8f:57:a9:10:2d:4a:cd:e1:88:5c:81:41:a6:73:b2:6c:9f
Serial Number (int): 397226042858644538685706323770730796444831
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 29:8d:ad:c7:01:03:be:23:f1:18:8b:a9:db:03:58:08:6c:f3:98:19
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): e2:80:0c:10:bd:bc:1b:7d:e7:67:4d:7a:69:8c:4a:92:95:37:cf:31
Fingerprint (sha256): 06:1d:3f:f3:78:8a:dd:29:8d:c8:39:8d:ca:85:49:e7:73:0c:b5:27:7d:a9:23:16:cf:fb:cb:2e:8a:04:5e:68

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate r-br.pl

5

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for r-br.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

mail.r-br.pl
r-br.pl
webdisk.r-br.netstrefa.pl
webmail.r-br.netstrefa.pl
www.kasacja.r-br.netstrefa.pl

Other certificates including the domain name r-br.pl

(limited to 100 certificates)
r-br.pl
r-br.netstrefa.pl
r-br.netstrefa.pl
r-br.netstrefa.pl
r-br.pl
r-br.pl
kasacja.r-br.netstrefa.pl
r-br.netstrefa.pl
r-br.netstrefa.pl
r-br.pl
r-br.pl
r-br.netstrefa.pl
r-br.netstrefa.pl
r-br.netstrefa.pl
r-br.netstrefa.pl
r-br.netstrefa.pl
r-br.pl

Certificate

The complete raw certificate details for r-br.pl in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAypH6edDYkPwuXP73Sotf
lHslOM5czglif+e+4tZV/82OxNv5LxVkJ1elxre+F/PsmcwLOjqgcLs2BcswD7QP
sHP6tBYoosgiCegWNqAWNjhUDO08gJq1hrKGpvtw0KnjBAhoPEc/r7+VTmEmOQ88
VlT0AqPPTg9T4Cr72nO9jZJZxaiBcS7dpFoemmhenOOwAPBy5c80DTmH9+tLDkCw
i8hhrQrO+OdYE0hBy5Iu9rphIFjYxEAQHabAuzqtkyaEt6nWJq780E5zS7/811mL
+shaSO8hL5o8ahKXPOPKus0s0DriMujeJmppkYOlxPIWP45LiYC5pzEGTaoU//d8
/wIDAQAB
-----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 397226042858644538685706323770730796444831
 . . . . . . . . [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 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-01-17 02:27:10 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-04-17 02:27:10 +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 'r-br.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 25572122245572333742260327246825812034512185379039622898277556852227678982875023228267119316826304620163202029281569418821687798147164836174028666860910951798452894331695458495366543781815742940389887992413008310364727569230811689736556524818497303098448916263012161240770013548169608665456428678519491072372060254167749225235054275688202942778257413811370197630551248257494843847065395781126386398380307194599760966195932317516602647685907283662252392482766842406736433785523744122675833343045802445735040927146520547153463859883150096194654633166197049395424514990149342300222917388161222417742735608296104099544319
 . . . . . . . . . . . . . . . . . . . . [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)
							298dadc70103be23f1188ba9db0358086cf39819
 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 (110 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.r-br.pl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'r-br.pl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webdisk.r-br.netstrefa.pl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.r-br.netstrefa.pl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.kasacja.r-br.netstrefa.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 (69 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 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . [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)
							00f0007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016859d92bb00000040300473045022100b51166e4a89dd065982b7ec4c90e3129727215e0d2eed37bd0b931c84b13066e022046fe1fdf7f7241e377b007742699009f13122bf80991b39cc4766715cd83370c007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016859d929b20000040300473045022058ed10bcc9a28ed817f4c69dd1ac2c766836a1145af59e6eeee1e041b2d27ee1022100c271c8e10599cf58f30164758c099e8ecfd4d4b04173388a676cb2e6113d359f
 . . . . [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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