czadsb.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:44:10:aa:93:aa:84:67:8e:81:30:be:3e:0e:a8:53:72:a3 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): 03:44:10:aa:93:aa:84:67:8e:81:30:be:3e:0e:a8:53:72:a3
Serial Number (int): 284498212079327041607879993343313976717987
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 9c:54:78:7c:b0:b7:a0:71:44:52:b2:dd:cb:d5:87:65:8b:fc:e5:4b
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): ec:d6:44:97:d5:38:c0:82:ab:90:05:72:d5:1b:75:1e:d1:8a:c6:1a
Fingerprint (sha256): 5b:06:62:2f:31:9d:1f:b0:fe:6e:12:e5:a6:b5:8c:9b:bf:a3:95:a6:1b:33:ff:4c:aa:49:87:8c:ba:fc:4d:41

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
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
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-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwDJpIrM9woW0uxZ1Rcq0
UC8FJMoZfOFAh1T7Dnn8ghRilfjCuWRpFr49J17UE2KA/DTsZF+VemyBHMXGGnKc
2y/mJrXCLN8QvlFwo9H5L9g3JP0oAPdZXyYxbs2yLQlSGaw/Vfi9pAifAM3e3kwe
TLHSvAAo7w1DQnJL92bnfSWvIFE8yFuScaawO8eiXU4KOop4f3QqXuSShYyWvVnb
pfXvjDUQrRwPBi5lfcClfM+k9kb5TKHf41eG0aTt97Ez1+dcswudpT0V7sEtslmS
/zHB+IqoIBwynumQyxZyRgt5H9MafcxRGFUFc41YHLZiB2BkkF/RGiDdeA4DrQbO
OwIDAQAB
-----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 284498212079327041607879993343313976717987
 . . . . . . . . [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 2018-11-27 22:34:51 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-02-25 22:34:51 +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 24262612989104504657809423872588533445149771143845625816265006758799680189958155514544782326234188265337479306402655309889430580957957700590958568042217427215955963277455184132789892614266888060427403262153373793631965715824214318597935587686106525730794113101456823859988470529611658094956802434550222178135375371482716544920431013256237689102579321537158281808968851507927748484983217784983058530505855567289217571993014934984679068353111674372716178983601055553157287920298358420771749803361587258506117155901630524355640475806780804972923568090993341339226781378441100399752247195297848546554260113657572505341499
 . . . . . . . . . . . . . . . . . . . . [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)
							9c54787cb0b7a0714452b2ddcbd587658bfce54b
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007700e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016757867e420000040300483046022100bb13d6fdeff8e5d97a080454438311ac0d87010d298eaa750e4f4031fe2fb694022100d33f4c8605fe5b96bb2c95ad93fcc68290f298e0672c04a29c2ab1da5e5b7cb100750063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016757867e43000004030046304402201aae0df70a792172dca75bb81d25e98cdec8f46aa91a8d120cd2e861b0b8c5ca02202264bb46b700031f32f1d6aa33cbb26bfa6ce1a48c60d1e70978ce5aff983357
 . . . . [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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