czadsb.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:d8:bd:ad:7b:5d:b5:96:f9:fb:cd:13:d5:04:52:80:dc:b7 was issued on by Let's Encrypt.

With 2 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=czadsb.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:d8:bd:ad:7b:5d:b5:96:f9:fb:cd:13:d5:04:52:80:dc:b7
Serial Number (int): 335089973910924123342265984602704376290487
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 4a:3d:ff:f3:ee:72:fe:c1:92:c8:ce:f1:84:75:e2:0e:4c:2c:01:b9
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 17:9c:ac:96:6c:3e:7d:2f:8a:07:b2:cd:a2:61:fc:c9:93:f6:8e:e0
Fingerprint (sha256): a0:89:fd:38:d3:7e:a7:66:77:7d:f8:30:48:ae:4f:78:25:eb:55:5e:21:f7:65:19:c7:58:b6:72:4e:bc:a3:ce

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 czadsb.cz

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for czadsb.cz

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

czadsb.cz
www.czadsb.cz

Other certificates including the domain name czadsb.cz

(limited to 100 certificates)
czadsb.cz
czadsb.cz
czadsb.cz
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czadsb.cz
czadsb.cz
czadsb.cz
czadsb.cz
czadsb.cz
czadsb.cz
czadsb.cz
czadsb.cz
czadsb.cz
czadsb.cz
czadsb.cz
czadsb.cz
czadsb.cz
czadsb.cz
czadsb.cz

Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIFWjCCBEKgAwIBAgISA9i9rXtdtZb5+80T1QRSgNy3MA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAzMjcyMjQ5MTJaFw0x
OTA2MjUyMjQ5MTJaMBQxEjAQBgNVBAMTCWN6YWRzYi5jejCCASIwDQYJKoZIhvcN
AQEBBQADggEPADCCAQoCggEBAN/Lujw+G+jipNNddXKtwbTclFvqk0ccZunjnX7Q
QLBe+fkNpeWKzti1L8QErKt7sXdKRsTUKNA78Dc4IOkGiUxkxDmXktk6Z8Z7tV6v
cn7wYMM9VQSF9pHXDFOlTNtgCMRebWuKJNfMiqJH0hJ5o8ZCjL33wbLyw9ezUFBu
vlJGJA1TNEYNAWw7/Ocqq4DiH3F1RFI20wcUyF/sotYRhyV7EqobAHqD7cypPHbk
3IbeRmPTGK12BaRYKDSjmGkUHRU3GhOf2CQKjy3TDOWlGHwa8elRFHMS3oojblwe
lZBMTuSoBHtZuNnOIFDjmXt0kJG+38NGD/86Et/IgTZOURcCAwEAAaOCAm4wggJq
MA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIw
DAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUSj3/8+5y/sGSyM7xhHXiDkwsAbkwHwYD
VR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYIKwYBBQUHAQEEYzBhMC4G
CCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0c2VuY3J5cHQub3JnMC8G
CCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0c2VuY3J5cHQub3JnLzAj
BgNVHREEHDAaggljemFkc2IuY3qCDXd3dy5jemFkc2IuY3owTAYDVR0gBEUwQzAI
BgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYaaHR0cDovL2Nw
cy5sZXRzZW5jcnlwdC5vcmcwggEFBgorBgEEAdZ5AgQCBIH2BIHzAPEAdgDiaUuu
JujpQAnohhu2O4PUPuf+dIj7pI8okwGd3fHb/gAAAWnBjsMfAAAEAwBHMEUCIChx
nvpd9SQMpQOKIbfUk6vSyUrosEsJwxf1XwMV0lcaAiEA10FA+QZuOCu8Av82E0YD
eYFdCaaethkvm7LiwyWvhaIAdwApPFGWVMg5ZbqqUPxYB9S3b79Yeily3KTDDPTl
RUf0eAAAAWnBjsOWAAAEAwBIMEYCIQDD524W4hX53QpWMWm1yJ7zto6T/bGBuUB/
uBn2qXJEsQIhAK/Ny1XAJiQCWaj/cBiT3dwEBBimHNdwopcRMb3AmOpvMA0GCSqG
SIb3DQEBCwUAA4IBAQAqJ5ARVXo0bBNKlY9tujma4nant6ztoYPEXSvQATCNgTfi
uz3VDdlqGv+oClgFAq2OOHXlYEMjqZ1FUWuG1fzCOHmdFjvfjC+b5JEjAB5+JTIC
At9PJnRGsGowA+Uvy4RvqaSg1xOIjK5eP/4D75Wy558QG7aPVgtDtaS3BRQ2I1F6
LDR9uncf3dxNTBDsY4azPHq1KJp/3Y1rkXu4hj4dBxWInwfNCeNYFcGYkhcCuWDv
wYtsxwodoxjgSQvMvKoiIB8M460IdKTxMP6sCsrVfsow2M6M3+6A+yG2/IWL04OT
oNY9QON4MgLAC1Kvr4kpgD03hpahi6zB9YQcN48+
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA38u6PD4b6OKk0111cq3B
tNyUW+qTRxxm6eOdftBAsF75+Q2l5YrO2LUvxASsq3uxd0pGxNQo0DvwNzgg6QaJ
TGTEOZeS2Tpnxnu1Xq9yfvBgwz1VBIX2kdcMU6VM22AIxF5ta4ok18yKokfSEnmj
xkKMvffBsvLD17NQUG6+UkYkDVM0Rg0BbDv85yqrgOIfcXVEUjbTBxTIX+yi1hGH
JXsSqhsAeoPtzKk8duTcht5GY9MYrXYFpFgoNKOYaRQdFTcaE5/YJAqPLdMM5aUY
fBrx6VEUcxLeiiNuXB6VkExO5KgEe1m42c4gUOOZe3SQkb7fw0YP/zoS38iBNk5R
FwIDAQAB
-----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 335089973910924123342265984602704376290487
 . . . . . . . . [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 2019-03-27 22:49:12 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-06-25 22:49:12 +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 'czadsb.cz'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (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 28251603772933081717826831169897707515836359675657223783334172643016746751887732448653992272526554772334517242170258348035125151602878347966046557497298648391459363044696211951828496169568281815487282028572984798433547200450513468929266651503032079849194016297598259165258327334430413059839858421283277266795324775662362263181236348636571734597757921824171868171442423721013562433994654133269474308358591845723388376420485711490590729460157562037509888746040435220797456404713464882699033791022840296216994160169613995588911211897759216634074794352728670634137475120184383022155772243589526620198724389577344034951447
 . . . . . . . . . . . . . . . . . . . . [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)
							4a3dfff3ee72fec192c8cef18475e20e4c2c01b9
 . . . . . . . . . . . . . . . . [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 (28 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'czadsb.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.czadsb.cz'
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe00000169c18ec31f0000040300473045022028719efa5df5240ca5038a21b7d493abd2c94ae8b04b09c317f55f0315d2571a022100d74140f9066e382bbc02ff3613460379815d09a69eb6192f9bb2e2c325af85a2007700293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000169c18ec3960000040300483046022100c3e76e16e215f9dd0a563169b5c89ef3b68e93fdb181b9407fb819f6a97244b1022100afcdcb55c026240259a8ff701893dddc040418a61cd770a2971131bdc098ea6f
 . . . . [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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