webmail.sobczyk.eu

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:82:1a:0c:f9:c1:cc:49:cb:21:8e:f3:07:88:f1:b6:8b:55 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=webmail.sobczyk.eu

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:82:1a:0c:f9:c1:cc:49:cb:21:8e:f3:07:88:f1:b6:8b:55
Serial Number (int): 305608192796129701248104216965648127265621
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: aa:d6:c8:2f:c4:e8:fe:22:9f:87:f6:7b:f8:a5:9f:60:12:5c:04:9d
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): a1:32:66:5b:90:b8:b8:88:02:00:4b:b2:2c:c0:5d:d8:d4:87:52:83
Fingerprint (sha256): 4f:1b:ab:bb:18:38:8a:b0:fc:69:d4:20:0c:a4:4b:86:85:3b:83:5d:bb:4b:8c:b7:d7:b8:0b:7b:c1:78:16:c6

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 webmail.sobczyk.eu

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for webmail.sobczyk.eu

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

8 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

webmail.sobczyk.eu

Other certificates including the domain name sobczyk.eu

(limited to 100 certificates)
srv191.sobczyk.eu
mx.sobczyk.eu
vpn69.sobczyk.eu
www.sobczyk.eu
www.sobczyk.eu
webmail.sobczyk.eu
www.sobczyk.eu
iot.sobczyk.eu
iot.sobczyk.eu
srv221.sobczyk.eu
webmail.sobczyk.eu
sobczyk.eu
srv191.sobczyk.eu
srv191.sobczyk.eu
srv191.sobczyk.eu
webmail.sobczyk.eu
srv191.sobczyk.eu
srv221.sobczyk.eu
webmail.sobczyk.eu
iot.sobczyk.eu
webmail.sobczyk.eu
srv191.sobczyk.eu
webmail.sobczyk.eu
webmail.sobczyk.eu
srv191.sobczyk.eu
webmail.sobczyk.eu
iot.sobczyk.eu
iot.sobczyk.eu
webmail.sobczyk.eu
manager.sobczyk.eu
srv191.sobczyk.eu
srv191.sobczyk.eu
webmail.sobczyk.eu
webmail.sobczyk.eu
srv221.sobczyk.eu
www.sobczyk.eu
webmail.sobczyk.eu
www.sobczyk.eu
www.sobczyk.eu
webmail.sobczyk.eu
srv191.sobczyk.eu
webmail.sobczyk.eu
iot.sobczyk.eu
www.sobczyk.eu
webmail.sobczyk.eu
iot.sobczyk.eu
srv221.sobczyk.eu
srv221.sobczyk.eu
srv191.sobczyk.eu
srv189.sobczyk.eu
www.sobczyk.eu
webmail.sobczyk.eu
iot.sobczyk.eu
srv191.sobczyk.eu
www.sobczyk.eu
webmail.sobczyk.eu
www.sobczyk.eu
sobczyk.eu
webmail.sobczyk.eu
www.sobczyk.eu
www.sobczyk.eu
srv221.sobczyk.eu
srv221.sobczyk.eu
webmail.sobczyk.eu
sobczyk.eu
srv221.sobczyk.eu
www.sobczyk.eu
webmail.sobczyk.eu
www.sobczyk.eu
iot.sobczyk.eu
iot.sobczyk.eu
webmail.sobczyk.eu
www.sobczyk.eu
mx.sobczyk.eu
beta.med.sobczyk.eu
sobczyk.eu
webmail.sobczyk.eu
zaplecze.sobczyk.eu
webmail.sobczyk.eu
sobczyk.eu
www.sobczyk.eu
srv191.sobczyk.eu
srv191.sobczyk.eu
sobczyk.eu
sobczyk.eu
srv191.sobczyk.eu
www.sobczyk.eu
srv191.sobczyk.eu
webmail.sobczyk.eu
www.sobczyk.eu
www.sobczyk.eu

Certificate

The complete raw certificate details for webmail.sobczyk.eu in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv5o7qWcdwaOFufx+zCO3
MNOR8w0+N9JaOrZW9lsrQZo2ETD8VQHahojfWln++MzoGWeJ4yhyFmzbUYOnCa8w
7iO0wqoPVrqV/ROk1HkneMp9WP+JbQHzVIzXRygefh8cR4saUvd14dkDEizIW173
yYpx2OwKcxQ02AEav7cWnHQ3V5o3YoyrdC7gvftLRuK2jhD5fLm7WssXOSr/tf+a
keHPFgaVpHaHXSZ6lc7d3dGFre3GnTK6q/oqagjypsy/3mEY6xjO48OsfH33+gBJ
EJuqX9xe0JZw3oB4kUm0l5fdqHL9wRvS+2xeZTG8PYdvf85EN+unoAtakmhn8CJM
WQIDAQAB
-----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 305608192796129701248104216965648127265621
 . . . . . . . . [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 2018-01-22 05:15:42 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-04-22 05:15:42 +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 'webmail.sobczyk.eu'
 . . . . . . . . [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 24187571401877302776598961746645055059262356692366806563743651925094275458302557621873816974370468330614243781527668942689981470576444191919400142192465477639023422555266493390733922679610685230039771091723379369203600269286541004315923893647081404558865860371453764503110417052965717303270452088633718183939960555202830636207938692417336616042453454503368813577545054348775813433220864618326955708008260262144900176226946333599973290870028890881994116636244531708713007677222800199099519028726121891046333361494904022565625696471290864895062470463535677010279728862912141233015009977416744449219665575245555890801753
 . . . . . . . . . . . . . . . . . . . . [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)
							aad6c82fc4e8fe229f87f67bf8a59f60125c049d
 . . . . . . . . . . . . . . . . [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 (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.sobczyk.eu'
 . . . . . . . . . . . . . . . . [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 (246 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 1.3.6.1.5.5.7.2.2 (unotice)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/'
 . . . . [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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