yangson.labs.nic.cz
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:bc:f8:b0:f3:54:be:06:21:60:7d:c9:b1:de:98:23:7e:a6 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=yangson.labs.nic.cz
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:bc:f8:b0:f3:54:be:06:21:60:7d:c9:b1:de:98:23:7e:a6Serial Number (int): 325640510098958441238722026188015451471526
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 22:9c:87:e9:9b:87:0a:11:b9:f5:22:42:78:49:ea:d4:48:58:b7:cf
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 67:bb:16:8b:4f:80:c8:4d:70:ae:50:aa:c4:ba:3e:81:a8:38:42:12
Fingerprint (sha256): 13:a9:c2:81:a0:24:6c:96:41:8f:43:1c:96:42:c5:fd:1e:5a:9e:f1:32:b2:e1:df:1e:00:22:d6:c3:80:0c:ae
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 yangson.labs.nic.cz
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for yangson.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
yangson.labs.nic.cz
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Certificate
The complete raw certificate details for yangson.labs.nic.cz in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGCjCCBPKgAwIBAgISA7z4sPNUvgYhYH3Jsd6YI36mMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xNjEyMDcxMzI2MDBaFw0x NzAzMDcxMzI2MDBaMB4xHDAaBgNVBAMTE3lhbmdzb24ubGFicy5uaWMuY3owggIi MA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQD1PiDje6ryiSU7/1FT3jxoebEF NCvhbglW0pYVtN4AU9OpKh7/neadB5+8+BeugjjkYYAyVQpJ+zlTKl/QTj676QEL htex8ZFeTH40+acBkeRCR3oHpYHEi1h/7zpmM1l82t/tTmQwfXb+VrtxtQ1KYwaJ kNiZGc8DTxkeJRNnmi4/2LM84nwfXV+XFOtHVNBFCos2UFYQL1/XNHJAPU9BgGnd MC1C3BuXOSN86dnw19EeVeTBsDOi4Pf76wrP0ptG4paYFnXNVuVmnc5eGWVPKCJy 2g5BKcvwHrXs3y8eNJvojgTehu64/oHgGN6tkwAMm0xq2u2x2dRRs08flb/at9Sw 0j1Ym1/dGZI3dOICihZ6Io0FU16dvzh7Oj+UIEqmGu7rPqmX3/y9OlR1zcykUTv/ 5hnSR2T29LgickcCgqNeFA42A0ReieDw33USBwPS9OY4jg5hhNU9NRAXwQ5oUxBC zXT7tfYgqXCOsdO7oVznDLvsEposrEVVFLciMMOJHqoOMA3K8k2LY9P5sq5Jdq8d eQx/i3nZhPOyrPvn7XY6FvFNxxRJBFFdi6J07Tduxx5BaHqz7pbBVZy/CK02UwkM BM7paAsNB89wuCHvTFNs8fMcvzj9KuRoyfrdJpfhnf2ez0sDPpJcDQMl9200YFNe okewtcJBRH2gHDYZFQIDAQABo4ICFDCCAhAwDgYDVR0PAQH/BAQDAgWgMB0GA1Ud JQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQW BBQinIfpm4cKEbn1IkJ4SerUSFi3zzAfBgNVHSMEGDAWgBSoSmpjBH3duubRObem RWXv86jsoTBwBggrBgEFBQcBAQRkMGIwLwYIKwYBBQUHMAGGI2h0dHA6Ly9vY3Nw LmludC14My5sZXRzZW5jcnlwdC5vcmcvMC8GCCsGAQUFBzAChiNodHRwOi8vY2Vy dC5pbnQteDMubGV0c2VuY3J5cHQub3JnLzAeBgNVHREEFzAVghN5YW5nc29uLmxh YnMubmljLmN6MIH+BgNVHSAEgfYwgfMwCAYGZ4EMAQIBMIHmBgsrBgEEAYLfEwEB ATCB1jAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwgasG CCsGAQUFBwICMIGeDIGbVGhpcyBDZXJ0aWZpY2F0ZSBtYXkgb25seSBiZSByZWxp ZWQgdXBvbiBieSBSZWx5aW5nIFBhcnRpZXMgYW5kIG9ubHkgaW4gYWNjb3JkYW5j ZSB3aXRoIHRoZSBDZXJ0aWZpY2F0ZSBQb2xpY3kgZm91bmQgYXQgaHR0cHM6Ly9s ZXRzZW5jcnlwdC5vcmcvcmVwb3NpdG9yeS8wDQYJKoZIhvcNAQELBQADggEBAHAH CuEROjtxO4E8g1x71tE8T4mD+nllI7Tr+/JnYG013+sPkTv/+5YoUMUBgLtUZYRU r+LBRX72+eQUAQgPeFXd7qdekAq63wlcb8oZtQKonVYpFL4IItvW76GchoLcOoqt OPuKGIXFHuyaEx/uuVsspFDNjHY7xYrtE4yMNAkxuLX4ZS7oSnyv59WWxLTvimWR ywy8YSkjCv42Dx2tyISGXom4votkDvAIBEhScuLvU9yyKEhkiHNfk18UVMJl5P36 KJsBVWSpxrC/J9veb1Po17IDud1gOs3Wi9TLvWRZV01kSCA6ICaMQYFhwXjLP7l4 cKmVAzAhzmrv8XoDp84= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA9T4g43uq8oklO/9RU948 aHmxBTQr4W4JVtKWFbTeAFPTqSoe/53mnQefvPgXroI45GGAMlUKSfs5Uypf0E4+ u+kBC4bXsfGRXkx+NPmnAZHkQkd6B6WBxItYf+86ZjNZfNrf7U5kMH12/la7cbUN SmMGiZDYmRnPA08ZHiUTZ5ouP9izPOJ8H11flxTrR1TQRQqLNlBWEC9f1zRyQD1P QYBp3TAtQtwblzkjfOnZ8NfRHlXkwbAzouD3++sKz9KbRuKWmBZ1zVblZp3OXhll TygictoOQSnL8B617N8vHjSb6I4E3obuuP6B4BjerZMADJtMatrtsdnUUbNPH5W/ 2rfUsNI9WJtf3RmSN3TiAooWeiKNBVNenb84ezo/lCBKphru6z6pl9/8vTpUdc3M pFE7/+YZ0kdk9vS4InJHAoKjXhQONgNEXong8N91EgcD0vTmOI4OYYTVPTUQF8EO aFMQQs10+7X2IKlwjrHTu6Fc5wy77BKaLKxFVRS3IjDDiR6qDjANyvJNi2PT+bKu SXavHXkMf4t52YTzsqz75+12OhbxTccUSQRRXYuidO03bsceQWh6s+6WwVWcvwit NlMJDATO6WgLDQfPcLgh70xTbPHzHL84/SrkaMn63SaX4Z39ns9LAz6SXA0DJfdt NGBTXqJHsLXCQUR9oBw2GRUCAwEAAQ== -----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 325640510098958441238722026188015451471526 . . . . . . . . [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 2016-12-07 13:26:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-03-07 13:26:00 +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 'yangson.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 1000502882792449600057172967510733195061659667488404401292634367397425379834587042985285930969491346311246916491349873812162528511172656304473819354595245356169866361625022893346491252982165045989742077803217291714499337340756617497993912654652795381962525882763984613870538778856497082199288374406068535387762285265880254236784074208902540092243205178289811475574162506313819691789655187483224933182501260359137982981479861815562757752670092880754705731112597080670738307238286531159726794883947093687370781298421693315202318997745809104399640653567133599950873351145625999273331899581521822144568065855182350542655647387282773392697599331717346838907338587051642743131395058863733607418550033734981322637397808294570975130163871433633115336572593351613816703749246840482107479373686718542919892546310109638701037660612042942995265175545162457372900803098958317870504579334072985491374643895925255005608766960192295576753904001842929855678088719786262986109003364242962933687334357571076622386584694962337964419294558690962062331770785234843442673182026971003017849185999461914228145063282694735858729219411851330736724543695452977306818022607835189111030803093127173180486777901539683234712093649308600383490830492486012449137760533 . . . . . . . . . . . . . . . . . . . . [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) 229c87e99b870a11b9f522427849ead44858b7cf . . . . . . . . . . . . . . . . [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 (100 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 (23 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'yangson.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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