czadsb.cz

Issued by R3

About this certificate

This digital certificate with serial number 04:9e:c9:c5:75:b1:10:31:22:10:7b:f5:be:6d:fc:41:e8:2d was issued on by Let's Encrypt.

With 5 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=czadsb.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:9e:c9:c5:75:b1:10:31:22:10:7b:f5:be:6d:fc:41:e8:2d
Serial Number (int): 402481957797253482815862342282620910561325
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: a1:bf:2d:b4:b5:0f:93:8a:c5:c0:9e:17:9c:cb:84:82:15:3b:ed:46
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 97:0c:a1:a8:00:78:5b:8a:4b:7e:88:32:9f:0e:ad:59:4e:99:7f:a6
Fingerprint (sha256): 8e:0a:87:e3:a3:4f:f0:29:e8:bc:95:d8:cb:e4:a0:a8:a6:58:ff:ab:f2:17:76:dd:ef:62:82:1f:b7:2a:d0:b0

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

Revocation information

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

Check the revocation status for certificate czadsb.cz

5

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

adsb.habrtech.cz
czadsb.cz
notifier.czadsb.cz
stations.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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApfSBnrqL+mOc2j9u7lL0
rtabpSHCwGMIF2z3t/0MMxBoHy+UzzXcyHEXC8/5EMXOkF8Xgfpd7ChhXcwhp+Oz
AKYm/m+waG472uwa31NfO/C14M0r8WrJ7PQRHCa4CtIULxuJC5Zq+dWAHkbLyROq
Ihc/Z4mPYmkttOpbFa3tlgGNQaOmMDjx7AmLaFesy5y4/dYemK2/mMh4J2hp1XKj
7LLTgElM7sPHki53qS+bKsXWYXUpQjd9SrF1YupQmY0F8mm8mb9yVCEr/iWPt7ql
Z5Kw8HsL5zuerRi9sVXydX8EKoa06TCBHTTygP/h8hMY4NFyCYCWehjzxyiKr6AJ
hQIDAQAB
-----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 402481957797253482815862342282620910561325
 . . . . . . . . [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 2023-11-11 17:56:30 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-09 17:56:29 +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 20949890883590024927250579879246307025484494584063769231662660791070742682322931606885698392219822818651006879395779155825283382793573862788044725751359895053649610462952880458856552234934893280576741027651217223622782540646876461133406891813423936224069391393934263294100024798653644136488052727429675469387392954631218238124309428204549546938421688220677758653734742220692389393206545055800334545639719598442793144362931912684825549468619550910857331648153730616894080060567056680727969761262510375249596644719004232571576989365776836460295520081094889489787230834079659722738296514869901607840004619606606720534917
 . . . . . . . . . . . . . . . . . . . . [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)
							a1bf2db4b50f938ac5c09e179ccb8482153bed46
 . . . . . . . . . . . . . . . . [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 (86 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'adsb.habrtech.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'czadsb.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'notifier.czadsb.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'stations.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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018bbfbe218c0000040300473045022033d7a309703a8805c5a41363ecf1fe541070cbc10efe92adc70cf20701e924d00221008e92017dced4ef218d779df8094f47ceeb551b3a44047c92328643bbc5f51cce00760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018bbfbe218c000004030047304502200ec74f3cb87b12babdac3822bdd135bcfd18594a5bc7f5caee425917d78d73cb022100fbcd802a043d444610f22b75aab7983edf59e06ff9ebd9dfe4db9542fff49f73
 . . . . [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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