ivd.cz

Issued by R3

About this certificate

This digital certificate with serial number 03:ea:02:f1:9c:92:6b:9d:24:21:0c:55:49:e6:2b:32:9c:ab was issued on by Let's Encrypt.

With 3 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=ivd.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:ea:02:f1:9c:92:6b:9d:24:21:0c:55:49:e6:2b:32:9c:ab
Serial Number (int): 340966844629971331880268207589424282901675
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 38:7d:d0:01:54:02:e8:dd:66:70:e8:ba:60:c3:79:78:41:ba:f3:e7
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): a7:ab:62:c5:83:74:9c:18:07:a5:d4:99:08:15:c7:58:46:38:ee:15
Fingerprint (sha256): 36:a2:e9:71:68:20:40:98:c6:4e:39:e8:e2:09:52:d7:57:ed:6e:b3:7f:b4:d2:9a:8b:fd:74:d4:d3:81:79:3c

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

Revocation information

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

Check the revocation status for certificate ivd.cz

3

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for ivd.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

beta.ivd.cz
ivd.cz
www.ivd.cz

Other certificates including the domain name ivd.cz

(limited to 100 certificates)
event.ivd.cz
ivd.cz
ivd.cz

Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIE8zCCA9ugAwIBAgISA+oC8ZySa50kIQxVSeYrMpyrMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yMzA5MjAwMTAwMTZaFw0yMzEyMTkwMTAwMTVaMBExDzANBgNVBAMT
Bml2ZC5jejCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMILe9ygjoJY
gwve9IreBcklvviyd3cpvWMpWqIoEt7c+IRqk31k0y/YQE3B9m9liHmMokzvC66I
ggZpa/PGQvOPt2ufNVNJC3rU7JfRTf7vv7C7BlbLr+6o+gs9HIuvGdy08PzcVIQl
a0alWpbvL66QnS2girt84CTSEGxSIRnWcFzfYYOxvT4ArbDM4CVgQ/zGAvq4iIRD
zriDONgk09yqPjjymfptAo2icBbEdtZqFhY6t97rw6VjOT0+bVCBHMlCWD3tUfch
JiKuKznAMwIuRr8bcT74THpOVkBGpfvCiyF/Y7pYUWB4xmy9F/EiuVw1+Tkp19Z6
WV1e+A60Pu0CAwEAAaOCAiIwggIeMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAU
BggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUOH3Q
AVQC6N1mcOi6YMN5eEG68+cwHwYDVR0jBBgwFoAUFC6zF7dYVsuuUAlA5h+vnYsU
wsYwVQYIKwYBBQUHAQEESTBHMCEGCCsGAQUFBzABhhVodHRwOi8vcjMuby5sZW5j
ci5vcmcwIgYIKwYBBQUHMAKGFmh0dHA6Ly9yMy5pLmxlbmNyLm9yZy8wKgYDVR0R
BCMwIYILYmV0YS5pdmQuY3qCBml2ZC5jeoIKd3d3Lml2ZC5jejATBgNVHSAEDDAK
MAgGBmeBDAECATCCAQUGCisGAQQB1nkCBAIEgfYEgfMA8QB2ALc++yTfnE26dfI5
xbpY9Gxd/ELPep81xJ4dCYEl7bSZAAABirBRDdoAAAQDAEcwRQIhAKdU2khNU9mu
kgM1GcCCA/C0qvY5eWBJzDZBAgirYu9JAiA6459sRGcp80SmA0t1LdtBf3quQSmf
dpemg5fZRiK32wB3AHoyjFTYty22IOo44FIe6YQWcDIThU070ivBOlejUutSAAAB
irBRDhUAAAQDAEgwRgIhAJwQiHCkUdGDesPb9W0XuQeuWFstU7SJ7w+gJwlZeLas
AiEAzO3qBl4gR1qdOFnoQn/M2KL4N8Tyx1ZTVGsoZ95ocXMwDQYJKoZIhvcNAQEL
BQADggEBAEJmh3KJeIB0Prw1t16TmL9PauLCsdjuojjbQrgcvpF80exmR1UFud6H
eNl/AUzLC5BYBeQPHh/9MeMY5GXNMI6+8ppP5sZ3zoDPfrlq70J9sW83XE3c/Bp+
jGVI/loS4Nrqg1yl2AiYuiFKirUsf6QnabwxUw+AZT6+qIO8DgqThe7gdt+gr5NF
q+gLTBsIwjYyBaf0WmxBkq+QNGy2L9ly/H1cHtLKVs5AqbthruPZTeO9ZWgR4Cjn
vzHNqrRADuwlYt1cCYDaFzkieHAk174xNPGJZSilRlz7LmLWdVxNqlLK93tFXMj9
iFdUTJjo2dSETT+/lE9Omw7MgTaw4Y0=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwgt73KCOgliDC970it4F
ySW++LJ3dym9YylaoigS3tz4hGqTfWTTL9hATcH2b2WIeYyiTO8LroiCBmlr88ZC
84+3a581U0kLetTsl9FN/u+/sLsGVsuv7qj6Cz0ci68Z3LTw/NxUhCVrRqValu8v
rpCdLaCKu3zgJNIQbFIhGdZwXN9hg7G9PgCtsMzgJWBD/MYC+riIhEPOuIM42CTT
3Ko+OPKZ+m0CjaJwFsR21moWFjq33uvDpWM5PT5tUIEcyUJYPe1R9yEmIq4rOcAz
Ai5GvxtxPvhMek5WQEal+8KLIX9julhRYHjGbL0X8SK5XDX5OSnX1npZXV74DrQ+
7QIDAQAB
-----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 340966844629971331880268207589424282901675
 . . . . . . . . [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 2023-09-20 01:00:16 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-19 01:00:15 +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 'ivd.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 24495894053637691104722341639765834036449116234883028307161394862729024326800244820874150381610690272024997131546287176505411505426962292922016393780920073858497408077092480123634157021571445403697016683072185674610336690100143352984340928283553245648078539286782987295308383185771767524450815404512999417438342798460974643729866556728354924637669158543496202754306943769798484166776785810375511267522484643951191554745143257554886783028228595643389311229920295173667962436053978285143079724682506994325827148898719941388277684406462412259919649852149562579873756921214939174527974060453438528728890050532621432405741
 . . . . . . . . . . . . . . . . . . . . [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)
							387dd0015402e8dd6670e8ba60c3797841baf3e7
 . . . . . . . . . . . . . . . . [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 (35 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'beta.ivd.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ivd.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.ivd.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018ab0510dda0000040300473045022100a754da484d53d9ae92033519c08203f0b4aaf639796049cc36410208ab62ef4902203ae39f6c446729f344a6034b752ddb417f7aae41299f7697a68397d94622b7db0077007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018ab0510e1500000403004830460221009c108870a451d1837ac3dbf56d17b907ae585b2d53b489ef0fa027095978b6ac022100ccedea065e20475a9d3859e8427fccd8a2f837c4f2c75653546b2867de687173
 . . . . [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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