www.byznysakce.cz

Issued by R3

About this certificate

This digital certificate with serial number 03:04:2a:97:0e:1a:e5:44:72:46:96:23:97:1a:0d:97:78:9f was issued on by Let's Encrypt.

With 9 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): 03:04:2a:97:0e:1a:e5:44:72:46:96:23:97:1a:0d:97:78:9f
Serial Number (int): 262754599161697720509710015256185311557791
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: bc:1a:40:ff:1c:33:0a:10:90:8a:22:64:a5:5b:e8:94:5b:b3:da:fd
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): cb:13:a8:c9:4f:01:10:ea:39:47:27:f2:d7:c5:43:d1:62:87:03:68
Fingerprint (sha256): 86:9b:7f:6f:0e:ae:a2:83:2d:74:3b:0d:89:85:7c:be:42:74:6b:41:fb:56:96:d0:b9:09:15:d7:9f:c4:1a:4e

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

9

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.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
www.byznysakce.cz
www.byznysakce.cz
www.byznysakce.cz
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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
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-----
MIIELTCCAxWgAwIBAgISAwQqlw4a5URyRpYjlxoNl3ifMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yMjA2MTMyMTA3MTdaFw0yMjA5MTEyMTA3MTZaMBwxGjAYBgNVBAMT
EXd3dy5ieXpueXNha2NlLmN6MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE3NfO
gLltuDHvY23Ee1MO4Hi8T1v5STYARkmZzrjnxGIOdniThvdek3CBohemh0zLkiQ1
jU8JMP9Ozmv7X+Q8LqOCAhwwggIYMA4GA1UdDwEB/wQEAwIHgDAdBgNVHSUEFjAU
BggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUvBpA
/xwzChCQiiJkpVvolFuz2v0wHwYDVR0jBBgwFoAUFC6zF7dYVsuuUAlA5h+vnYsU
wsYwVQYIKwYBBQUHAQEESTBHMCEGCCsGAQUFBzABhhVodHRwOi8vcjMuby5sZW5j
ci5vcmcwIgYIKwYBBQUHMAKGFmh0dHA6Ly9yMy5pLmxlbmNyLm9yZy8wgd4GA1Ud
EQSB1jCB04ITZXZlbnQubWVzc29ydGllcy5mcoIVZXZlbnRzLmRzbWdsYXNzLmNv
LnR6ghhldmVudHMubG9uZG9ubGFkcy5vcmcudWuCD2V2ZW50cy5wcmF0by5iZYIV
ZXZlbnRzLnNpbHZlcnNpZGUuY29tghVldmVudHMud2lyLW5ldHdvcmsuY2iCEXd3
dy5ieXpueXNha2NlLmN6ghZ3d3cuY29ubmVjdC1sb25kb24uY29tgiF3d3cuZGVr
cmFjaHR2YW56dWlkLm1rYmxpbWJ1cmcubmwwTAYDVR0gBEUwQzAIBgZngQwBAgEw
NwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5j
cnlwdC5vcmcwEwYKKwYBBAHWeQIEAwEB/wQCBQAwDQYJKoZIhvcNAQELBQADggEB
AEOfCWg68PI/ZZVGrEje32ZjtJU/MpAlnJvk29hyA6RsZ8CScN7pbqCWYG70Ba2O
ComNxIiSDMBu93ryaTwCndfn5Va4ySr8Bir7LEcdbP1oLu3cd2sD6tqFfv5ZhI3q
f4X0mCI5qF0bu7bSp+SasFqHOWmwCl6y0f0V1jTVWl/qml0zRI1XczbOVz1USNaG
H36MYX03qjdFNCfcuSOFCTUwD2Yq/ykFp7EVcw/uii7CBjYWdExLuPqmhnBZwmeN
lrm7p8aUWh4TqUEz3ImgsTZut8DD8zcvI/ib9jXoA/OrfECI/OLxbtm79iQKxmde
5ZD61EbZac/ep3S5rIcp7es=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE3NfOgLltuDHvY23Ee1MO4Hi8T1v5
STYARkmZzrjnxGIOdniThvdek3CBohemh0zLkiQ1jU8JMP9Ozmv7X+Q8Lg==
-----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 262754599161697720509710015256185311557791
 . . . . . . . . [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 2022-06-13 21:07:17 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2022-09-11 21:07:16 +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)
				0004dcd7ce80b96db831ef636dc47b530ee078bc4f5bf9493600464999ceb8e7c4620e76789386f75e937081a217a6874ccb9224358d4f0930ff4ece6bfb5fe43c2e
 . . . . . . . . [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)
							bc1a40ff1c330a10908a2264a55be8945bb3dafd
 . . . . . . . . . . . . . . . . [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 (214 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.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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