dnssec-validator.labs.nic.cz
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:d1:f6:c2:99:29:e2:f3:ae:6a:f4:d9:4f:43:f8:20:bc:88 was issued on by Let's Encrypt.
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=dnssec-validator.labs.nic.cz
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:d1:f6:c2:99:29:e2:f3:ae:6a:f4:d9:4f:43:f8:20:bc:88Serial Number (int): 332783872980837786091660232070940403481736
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 1f:00:00:b7:33:0e:17:75:95:1e:68:b0:e1:51:a8:24:0a:3b:e2:be
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): ae:c9:31:ec:e6:ea:83:66:87:bd:01:f3:41:2b:71:f9:75:4a:83:51
Fingerprint (sha256): 07:4c:36:8d:f2:1c:54:ab:7b:00:d5:20:e1:0f:1e:a2:95:f2:60:c0:ac:75:af:97:8b:9c:a8:65:c9:da:ea:27
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate dnssec-validator.labs.nic.cz
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for dnssec-validator.labs.nic.cz
Public Key Algorithm
RSA
Key Size
4096
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
Key Encipherment
Extended Key Usages
Server Authentication
Client Authentication
Extensions
8 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
dnssec-validator.labs.nic.cz
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Certificate
The complete raw certificate details for dnssec-validator.labs.nic.cz in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGGzCCBQOgAwIBAgISA9H2wpkp4vOuavTZT0P4ILyIMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xODAzMDgwNjQ1MTRaFw0x ODA2MDYwNjQ1MTRaMCcxJTAjBgNVBAMTHGRuc3NlYy12YWxpZGF0b3IubGFicy5u aWMuY3owggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQDJqjiF87N3KWra /BtQP/Ne4hjGfItTtw0Vn9LaMrYn51J0Fom4IwkjBjKt/MDLWmg8PhRCM9w4z5wK SVVmklfkpIWQlRG7j2cQ+OpWu6QJleSNC69IRIVnu2XwgmG60UW92vLFynlqUJbh qRj/UEUMfDNOo6PTm7ZZvPXphjsjiRAH47U8/xH/CMmlLDM/t5BCp1TfEkm8bKyr blo3ipeFvT46ncnoX3gU6qkgDFcOKUL7FzxbyiGZ0eTcRRQtw9YmPz6/VPk2JNcO AfUV7xGCpjRm2WeMYTL7AC6wwxWgk4hrUpf/yQUKCTCt2dA7nRgDWjzAwvgtcX4h /PnFSknZGYSwEb3lbwJBiS0fqm/A2RUFYhucYDeu+nSykp1rCFg1p48Il92I6uBI zejswkTtcUm5YCqjj1e5123I5HmZfR45lImc6qifHqiOItsSwAb/EvLWlb3RjOJJ ixQBmgF/iWyG/EkhVgdTv2sbJ46DODhT8v66+D1LYJN+8ECRUix33no4e7Bf9URj l2GxT/YWNvg8Wsot6L2B0t02ExfOzS72dYuP6vjvyhfRrk6SslIBP25JeBenhDCx K7BSWiTviladbNujkQkETqkP5OTdUl4Lub8+f2vh6LW3jhhIdMHfhLlRe4TxrZU4 Vxk51018Z0M/lyualFaqDgUmARXtfQIDAQABo4ICHDCCAhgwDgYDVR0PAQH/BAQD AgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAA MB0GA1UdDgQWBBQfAAC3Mw4XdZUeaLDhUagkCjvivjAfBgNVHSMEGDAWgBSoSmpj BH3duubRObemRWXv86jsoTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0 dHA6Ly9vY3NwLmludC14My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0 dHA6Ly9jZXJ0LmludC14My5sZXRzZW5jcnlwdC5vcmcvMCcGA1UdEQQgMB6CHGRu c3NlYy12YWxpZGF0b3IubGFicy5uaWMuY3owgf4GA1UdIASB9jCB8zAIBgZngQwB AgEwgeYGCysGAQQBgt8TAQEBMIHWMCYGCCsGAQUFBwIBFhpodHRwOi8vY3BzLmxl dHNlbmNyeXB0Lm9yZzCBqwYIKwYBBQUHAgIwgZ4MgZtUaGlzIENlcnRpZmljYXRl IG1heSBvbmx5IGJlIHJlbGllZCB1cG9uIGJ5IFJlbHlpbmcgUGFydGllcyBhbmQg b25seSBpbiBhY2NvcmRhbmNlIHdpdGggdGhlIENlcnRpZmljYXRlIFBvbGljeSBm b3VuZCBhdCBodHRwczovL2xldHNlbmNyeXB0Lm9yZy9yZXBvc2l0b3J5LzANBgkq hkiG9w0BAQsFAAOCAQEAPTSlkMW/8eoho6sVNu5eFOo6/x/DXewFbQ/7v7GMey3D mlfe4lpyHvHIIKEpKEUb4mIGrb7HIvoFBFcFBEpLEk7XyZollI0pc9M8CjgMRhz5 A1Vk5wxwG444UoNWcidswVP8gxJ5Czwrw2U5R7LY7B1uhSFBY6xwdvaUIgceWJpM ROoSZZqk2W50G90rdcBSnSEar8f5u7I109kTdLQW0ojFS0X+vdbc0XQPFBZaOOGa Tg2+fYFgjzC/uXAqA7rAFurRtMUwbox0i5MvATx5XSHmTlrfPz5jZ48rguWhJm4G snPU848yedgtCUTpRSrwUnoHgn321krqlnLgUIcTmw== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAyao4hfOzdylq2vwbUD/z XuIYxnyLU7cNFZ/S2jK2J+dSdBaJuCMJIwYyrfzAy1poPD4UQjPcOM+cCklVZpJX 5KSFkJURu49nEPjqVrukCZXkjQuvSESFZ7tl8IJhutFFvdryxcp5alCW4akY/1BF DHwzTqOj05u2Wbz16YY7I4kQB+O1PP8R/wjJpSwzP7eQQqdU3xJJvGysq25aN4qX hb0+Op3J6F94FOqpIAxXDilC+xc8W8ohmdHk3EUULcPWJj8+v1T5NiTXDgH1Fe8R gqY0ZtlnjGEy+wAusMMVoJOIa1KX/8kFCgkwrdnQO50YA1o8wML4LXF+Ifz5xUpJ 2RmEsBG95W8CQYktH6pvwNkVBWIbnGA3rvp0spKdawhYNaePCJfdiOrgSM3o7MJE 7XFJuWAqo49XuddtyOR5mX0eOZSJnOqonx6ojiLbEsAG/xLy1pW90YziSYsUAZoB f4lshvxJIVYHU79rGyeOgzg4U/L+uvg9S2CTfvBAkVIsd956OHuwX/VEY5dhsU/2 Fjb4PFrKLei9gdLdNhMXzs0u9nWLj+r478oX0a5OkrJSAT9uSXgXp4QwsSuwUlok 74pWnWzbo5EJBE6pD+Tk3VJeC7m/Pn9r4ei1t44YSHTB34S5UXuE8a2VOFcZOddN fGdDP5crmpRWqg4FJgEV7X0CAwEAAQ== -----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 332783872980837786091660232070940403481736 . . . . . . . . [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 2018-03-08 06:45:14 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-06-06 06:45:14 +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 'dnssec-validator.labs.nic.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 (4208 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 822721114907475228554875157859569118207827054978136343107618748435953917833606742200470018574995988592203218432963897475859332063477872660941030157438978133172752737062378261389676772985063894098388769567858581771422001103466962705904214603028939168051195759774917249145313814950361548177975088563737290915781223408242134133249769668416265671509269457207982248500277736798537875707588885116533856943821843969633944514183536517189258685816446858180802077239301841485164430038590107285357427716465493052253646668583824338835675970537368829527985167286870190728186286046299233474399787161414934748367563653854838975466227478510910340977997046337721431376898247231404522412585587856899584606398845506959297302394465226570251052529651105990752747939169453855804102938705433750058888964881996733596774488894961846321237874406863474125700741251527794611907502238882809697921978425597500317584768505574653711842587237358962967783009437229615530955673330190901255835535375786695710354673702034973950023902493482753466684019654672493019026615364022678941928965446067156913779982952281665753142795741824695864425585742371706998229702072379415726260704652278332953266569207847483027291737437222938838301185882132265008200625848834821957596081533 . . . . . . . . . . . . . . . . . . . . [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) 1f0000b7330e1775951e68b0e151a8240a3be2be . . . . . . . . . . . . . . . . [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 (32 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'dnssec-validator.labs.nic.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 (246 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 1.3.6.1.5.5.7.2.2 (unotice) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/' . . . . [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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