www.byznysakce.cz

Issued by R3

About this certificate

This digital certificate with serial number 04:c9:2f:1b:a5:8b:72:32:27:ca:3f:70:98:82:53:9f:9c:08 was issued on by Let's Encrypt.

With 11 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=www.byznysakce.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:c9:2f:1b:a5:8b:72:32:27:ca:3f:70:98:82:53:9f:9c:08
Serial Number (int): 416908516743612330346328426761355345763336
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 61:a5:12:67:e9:69:b0:35:f2:73:33:5a:c5:6b:aa:d2:25:36:2f:41
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 7c:64:90:81:90:93:ec:5c:22:05:a6:aa:93:67:c3:3b:45:cb:7e:16
Fingerprint (sha256): 98:3a:f0:78:64:a3:a6:b9:cd:26:dc:81:05:20:c5:cf:08:53:46:63:3f:bb:87:6e:48:e4:63:df:79:44:07:86

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

Revocation information

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

Check the revocation status for certificate www.byznysakce.cz

11

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.byznysakce.cz

Public Key Algorithm

ECDSA

Key Size

256

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature

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

event.messorties.fr
events.applecoredesigns.co.uk
events.dsmglass.co.tz
events.londonlads.org.uk
events.prato.be
events.silverside.com
events.smartglobal.com
events.wir-network.ch
www.byznysakce.cz
www.connect-london.com
www.dekrachtvanzuid.mkblimburg.nl

Other certificates including the domain name byznysakce.cz

(limited to 100 certificates)
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
event.messorties.fr
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
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www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
event.messorties.fr
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
event.messorties.fr
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
event.messorties.fr
byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz

Certificate

The complete raw certificate details for www.byznysakce.cz in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEpM9kNd58//6fVQ79Ocv49VBzMeOO
MiAe1VKykm1L53LRr8JeJuXTkmEUkdeLqbX+fX4ZYK4guawPVX3uCEZodg==
-----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 416908516743612330346328426761355345763336
 . . . . . . . . [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 2021-06-18 15:16:39 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2021-09-16 15:16:38 +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 'www.byznysakce.cz'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.2.1 (ecPublicKey)
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.3.1.7 (prime256v1)
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (520 bits)
				0004a4cf6435de7cfffe9f550efd39cbf8f5507331e38e32201ed552b2926d4be772d1afc25e26e5d392611491d78ba9b5fe7d7e1960ae20b9ac0f557dee08466876
 . . . . . . . . [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 (1 bits)
							0780
 . . . . . . . . . . . . . . . . [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)
							61a51267e969b035f273335ac56baad225362f41
 . . . . . . . . . . . . . . . . [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 (270 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'event.messorties.fr'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'events.applecoredesigns.co.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'events.dsmglass.co.tz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'events.londonlads.org.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'events.prato.be'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'events.silverside.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'events.smartglobal.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'events.wir-network.ch'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.byznysakce.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.connect-london.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.dekrachtvanzuid.mkblimburg.nl'
 . . . . . . . . . . . . . . . . [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 1.3.6.1.4.1.11129.2.4.3 (CT Precertificate Poison)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [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)
		0092f1d44dd45d9cf652b1e6b1f3fcdaa8dbec24b6b3be917b851b42aa8a343fe9f15101ed65a5377853a5aa19c41de36efcba9b89e072d92c22fbd7ba8e7d934b19232c6a6e9c87141ea1ac676b8969d4554ea0d1c5bc63979a52f0fc666f876d7672b38fed94efbb4546eb6747cde639baa97099370b6b2a5e9bdc7c66d17e30a8548c6621e688b16c1b081565037608e63b3dfcc2a4beed797a8e918df3a20fb56b10f9d8b9acf1d4c139dcfca249843ffdef8cfec04523e74697727ab6d1fd4992fd8c0e91c8155924c9ace21a4bebf2bcb43ba71ac8f798f87fe45dfdaa02d93a5c9b2587697d6a05d5ebb33fbd243213d3f68b7634d3a32d8ba9d4d0b85c