iot.sobczyk.eu
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:3b:79:d5:c1:f1:03:67:15:f6:33:0c:a9:8f:a1:4d:09:6d 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=iot.sobczyk.eu
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:3b:79:d5:c1:f1:03:67:15:f6:33:0c:a9:8f:a1:4d:09:6dSerial Number (int): 281575463923937045771927293203784221395309
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: cc:a4:ed:c2:50:0b:9b:f1:64:cd:e6:30:dc:8d:5d:1c:96:3f:fb:f5
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): c0:75:74:24:ba:82:a3:ff:2e:7c:e5:43:c1:5a:fc:59:11:f0:dc:ff
Fingerprint (sha256): 0c:ba:cb:63:25:c2:f8:df:2d:7f:b2:63:56:ae:52:f2:70:1b:8d:3c:75:df:5c:28:86:f3:0c:ba:fb:34:5b:8a
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate iot.sobczyk.eu
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for iot.sobczyk.eu
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
iot.sobczyk.eu
www.iot.sobczyk.eu
www.iot.sobczyk.eu
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(limited to 100 certificates)
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iot.sobczyk.eu
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sobczyk.eu
srv191.sobczyk.eu
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srv191.sobczyk.eu
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iot.sobczyk.eu
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srv191.sobczyk.eu
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iot.sobczyk.eu
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mx.sobczyk.eu
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Certificate
The complete raw certificate details for iot.sobczyk.eu in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFaDCCBFCgAwIBAgISAzt51cHxA2cV9jMMqY+hTQltMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA0MjkwNDIzMDJaFw0x OTA3MjgwNDIzMDJaMBkxFzAVBgNVBAMTDmlvdC5zb2JjenlrLmV1MIIBIjANBgkq hkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApIRFq6AOg2LfJxRMSmS5l7Tu0LKmVzii JK2+IagytvrdzRNlmTIFS9d0hMQFtqxS67g9hgNzTRfKSjUiZW6+noACvegMBynj K8e6xxyZb/Xkb/BMyvPcyRVU+gHJk+7IJubE+Xz5eY/TCCWQJHRWjmJJp6/Q0OfL X68UxmvBbre3GtAkTG44Od3CiSxtdKt2G3miEfy3avYF6Qjm31oVGZ14hOro1SoA a1O9QA5yKfQbk1qqwacGI8Fzhp2bpH54reJRZtJJbPjqoZj03duIX1OZpCS9HFG8 yF2oedo2H3is/CYEHY71iObDoo8jybt3J2sayZGKNBRHejGDukX9LQIDAQABo4IC dzCCAnMwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEF BQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBTMpO3CUAub8WTN5jDcjV0clj/7 9TAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggrBgEFBQcBAQRj MGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRzZW5jcnlwdC5v cmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRzZW5jcnlwdC5v cmcvMC0GA1UdEQQmMCSCDmlvdC5zb2JjenlrLmV1ghJ3d3cuaW90LnNvYmN6eWsu ZXUwTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEF BQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEEBgorBgEEAdZ5AgQC BIH1BIHyAPAAdgBvU3asMfAxGdiZAKRRFf93FRwR2QLBACkGjbIImjfZEwAAAWpn i+YWAAAEAwBHMEUCIALh6W46yeXKIkUDcYPdrf5oF3ItM3i7Ido8UUFkJxKLAiEA hf57Rx7yTL6kEcmFRQsrCSuBP08i5s2We1/v8MU+xJAAdgBj8tvN6DvMLM8LcoQn V2szpI1hd4+9daY4scdoVEvYjQAAAWpni+SLAAAEAwBHMEUCIA2+lL7mNHyp1UuE SzfcDZ17k2c0HCa9NlSnfbOKHt0IAiEAox4nvXHNfMoKOveE63YV0d48E9YoBxGA PNNLXh4YXbQwDQYJKoZIhvcNAQELBQADggEBAJIezIg+8XZpSocb29uVMmMF7xLR 3uFcVxK4YN8KFPuCJekL0fTOY2jJsvLymzGok52Gn4aSLLq6jVkbQ9DRHKFUevpz n3IjsXCS89s707ypHXjJZhVIlH36NVv5hUBNMR/QO9hDEj2BVNvw9vXjq9Zf6v39 gRrHZpEYclt7BrE4hTzQQzxOaii83ZbtVJvF+FfGHtJKUBWTvhDVwnON6mWtE24X qM1Rwc1Socrfe/YCTBJXvBdPf16H0QL9jTiGelMwnbu3X9WgTzzGoa/sGayVNHAp jLjDbSRjOdQlF1Z80zso7C5L3rz8AMw4GS3QVCf3bvIenPU9KZRPCoVFF2o= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApIRFq6AOg2LfJxRMSmS5 l7Tu0LKmVziiJK2+IagytvrdzRNlmTIFS9d0hMQFtqxS67g9hgNzTRfKSjUiZW6+ noACvegMBynjK8e6xxyZb/Xkb/BMyvPcyRVU+gHJk+7IJubE+Xz5eY/TCCWQJHRW jmJJp6/Q0OfLX68UxmvBbre3GtAkTG44Od3CiSxtdKt2G3miEfy3avYF6Qjm31oV GZ14hOro1SoAa1O9QA5yKfQbk1qqwacGI8Fzhp2bpH54reJRZtJJbPjqoZj03duI X1OZpCS9HFG8yF2oedo2H3is/CYEHY71iObDoo8jybt3J2sayZGKNBRHejGDukX9 LQIDAQAB -----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 281575463923937045771927293203784221395309 . . . . . . . . [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 2019-04-29 04:23:02 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-07-28 04:23:02 +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 'iot.sobczyk.eu' . . . . . . . . [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 20768307842619751002895534607924922026069235490611612771787104457158840765143311931286703474380921746134946745683938708618096191338834290553291289061087888699709466165551657274394339323190402153558884846370102935877457143068294214565480770565758500098615143970301201365920863340935057330588757193929212686588953310246777572642727339266737638726210421329962162045656429566879697327031882423829653056819844156428950146567477791055473900301583339263071072115338425560155480439785541754796993191560697293123424321889761942039628833284435196954336691873353596479438779341537950714775222649232969270974560030674736233446701 . . . . . . . . . . . . . . . . . . . . [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) cca4edc2500b9bf164cde630dc8d5d1c963ffbf5 . . . . . . . . . . . . . . . . [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 (38 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'iot.sobczyk.eu' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.iot.sobczyk.eu' . . . . . . . . . . . . . . . . [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) 00f00076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016a678be6160000040300473045022002e1e96e3ac9e5ca2245037183ddadfe6817722d3378bb21da3c51416427128b02210085fe7b471ef24cbea411c985450b2b092b813f4f22e6cd967b5feff0c53ec49000760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016a678be48b000004030047304502200dbe94bee6347ca9d54b844b37dc0d9d7b9367341c26bd3654a77db38a1edd08022100a31e27bd71cd7cca0a3af784eb7615d1de3c13d6280711803cd34b5e1e185db4 . . . . [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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