www.byznysakce.cz

Issued by R3

About this certificate

This digital certificate with serial number 04:47:54:64:7b:c3:4a:ce:22:0f:7d:a1:75:b3:7e:24:6b:0d was issued on by Let's Encrypt.

With 10 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): 04:47:54:64:7b:c3:4a:ce:22:0f:7d:a1:75:b3:7e:24:6b:0d
Serial Number (int): 372721368669968427938210810330244612123405
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: d9:4f:e8:d1:6f:8b:f7:7d:59:65:39:6b:6c:fc:61:9d:d1:69:92:ab
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): ba:1d:5d:d0:86:f9:83:cb:cc:41:3d:35:cc:16:a5:60:d0:a3:6e:d4
Fingerprint (sha256): f1:10:c6:62:9f:3d:23:7d:4f:a1:09:a7:8b:a1:24:51:1d:fa:de:9f:49:0e:aa:db:b1:e5:ac:e8:82:54:b8:4c

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

10

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.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
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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-----
MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEffz5l+bOGkGLoW3f1Vm6s7bv4RKn
Kx2NnLxFICeEzMjcFbbiHvz/aGcsPH+txBEM2vjGXBx6ixeKKH3jOJqgpg==
-----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 372721368669968427938210810330244612123405
 . . . . . . . . [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 2021-12-15 18:48:07 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2022-03-15 18:48:06 +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)
				00047dfcf997e6ce1a418ba16ddfd559bab3b6efe112a72b1d8d9cbc45202784ccc8dc15b6e21efcff68672c3c7fadc4110cdaf8c65c1c7a8b178a287de3389aa0a6
 . . . . . . . . [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)
							d94fe8d16f8bf77d5965396b6cfc619dd16992ab
 . . . . . . . . . . . . . . . . [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 (245 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.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)
		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