coursedog.com
Issued by R3
About this certificate
This digital certificate with serial number 04:ef:80:28:ae:bb:50:d4:1b:10:6f:bc:72:7d:76:e9:12:25 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:
- 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=coursedog.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:ef:80:28:ae:bb:50:d4:1b:10:6f:bc:72:7d:76:e9:12:25Serial Number (int): 429946981840460042625503602892366563316261
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: a8:8b:71:1e:6b:53:32:06:38:08:57:00:53:74:63:f7:ab:f2:69:4a
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): af:ea:ce:fc:c0:27:fe:b0:1b:7e:32:fc:fb:fd:e7:6a:ac:b0:59:10
Fingerprint (sha256): 50:08:d3:75:07:d1:64:3c:81:0d:38:9e:0e:43:ab:b2:c6:2e:8d:1e:27:41:87:79:f4:77:66:14:be:8b:8a:28
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate coursedog.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for coursedog.com
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
coursedog.com
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Certificate
The complete raw certificate details for coursedog.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIE5zCCA8+gAwIBAgISBO+AKK67UNQbEG+8cn126RIlMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMzEwMDMyMzEyNDNaFw0yNDAxMDEyMzEyNDJaMBgxFjAUBgNVBAMT DWNvdXJzZWRvZy5jb20wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDT AQlT96wPz7ipZ+1IKFVc1w5e72BKoRFVtr5vAPC08yaWYOhHhzB/VhrAqzRUlwhu FQN9q46xFpPLgQpFvGtRgF2cd21iazhT3c6K3/Aaih7yv7S5XHdoRuV03SAsSULo D9lfhph308RDpERFoofsr6GGkG231QtMUrcMIffJxTpA0Kjk9PtWsiRNdLhbdLLd Je+gRoUV2ss4V0TArhgEVEJ0eMZsDUeFyO+aecMU9PNRSNK93xoDPiVhNAuMO8BK iVZor84JaKgl20IV4Z7C1NzA91anDaWo3HHdTIYutJidoVcoARKmi84CDk0oZRK0 rwC6logRnqyGacRWFWpdAgMBAAGjggIPMIICCzAOBgNVHQ8BAf8EBAMCBaAwHQYD VR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0O BBYEFKiLcR5rUzIGOAhXAFN0Y/er8mlKMB8GA1UdIwQYMBaAFBQusxe3WFbLrlAJ QOYfr52LFMLGMFUGCCsGAQUFBwEBBEkwRzAhBggrBgEFBQcwAYYVaHR0cDovL3Iz Lm8ubGVuY3Iub3JnMCIGCCsGAQUFBzAChhZodHRwOi8vcjMuaS5sZW5jci5vcmcv MBgGA1UdEQQRMA+CDWNvdXJzZWRvZy5jb20wEwYDVR0gBAwwCjAIBgZngQwBAgEw ggEEBgorBgEEAdZ5AgQCBIH1BIHyAPAAdgA7U3d1Pi25gE6LMFsG/kA7Z9hPw/TH vQANLXJv4frUFwAAAYr4B56AAAAEAwBHMEUCIQDzuBbIYSzh1p5nY8XSryojezfq EvMyKMCULN2NxSOd9wIgQhV7jMm4UKlgLKMiHeInnHJigktip7PJWtvHiKqXOB4A dgB2/4g/Crb7lVHCYcz1h7o0tKTNuyncaEIKn+ZnTFo6dAAAAYr4B563AAAEAwBH MEUCIDQFr6jiUf5avr2YIfyH534BvOVpdwb+8jv0n4nylT6xAiEAwDgtNhkPPA+B Bo3O71Vl0zUyUKozEM5K7jEfp4CKCtwwDQYJKoZIhvcNAQELBQADggEBAIGGnpXS G5IVonrJsC8aCazlwsytKJjXAWxvysVgx2hGRbwkXmlOMeAFYMgUdv9uZUNT0XA6 sr/S0zB8ateKqysKvYKdQ+9ewbanpGkVkqY43+KHRchqlr5DIBg1pIrYiss772XB J/Osb47/CK7goqW1T2/PUzoh/LnNfMXrwkqnxdM9ksJhUA+WDB7GfsL7Zv5OnDTx X22Vcne0f6YBPNunyjhyvp3OxelqZM/MAyMT8XhsRpZjUKniY68scCcR7Vn/CIqp 1vSnxdYERpI9LgluPeftb7zcI9zN7d+Yy0Vsl5vh8Gb+oeUhEWvDfFCuvUawoqou /XvstXDAx0xnQCo= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0wEJU/esD8+4qWftSChV XNcOXu9gSqERVba+bwDwtPMmlmDoR4cwf1YawKs0VJcIbhUDfauOsRaTy4EKRbxr UYBdnHdtYms4U93Oit/wGooe8r+0uVx3aEbldN0gLElC6A/ZX4aYd9PEQ6RERaKH 7K+hhpBtt9ULTFK3DCH3ycU6QNCo5PT7VrIkTXS4W3Sy3SXvoEaFFdrLOFdEwK4Y BFRCdHjGbA1HhcjvmnnDFPTzUUjSvd8aAz4lYTQLjDvASolWaK/OCWioJdtCFeGe wtTcwPdWpw2lqNxx3UyGLrSYnaFXKAESpovOAg5NKGUStK8AupaIEZ6shmnEVhVq XQIDAQAB -----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 429946981840460042625503602892366563316261 . . . . . . . . [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 2023-10-03 23:12:43 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-01 23:12:42 +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 'coursedog.com' . . . . . . . . [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 26636793434214075615992327467858933580363847652713427704788186307636955567984863599315926422329707533967853913693953743830356755829349429436587020046590063690405682374085750514414906735802029641648303812134099479953280801691519970363227058054646204215389733005510087977389241545287535228804740899459443050967300215796476511249201629977557124517974305416009784453177886142173557768798237265008537812852765955657895710071196382586999645486959853142532007826745243055058347553021469863971355865930732936741459351217846398986155258179844205736394589591710579723802513173036812848491836356613524753198197043561850308225629 . . . . . . . . . . . . . . . . . . . . [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) a88b711e6b53320638085700537463f7abf2694a . . . . . . . . . . . . . . . . [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 (17 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'coursedog.com' . . . . . . . . . . . . . . . . [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) 00f00076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018af8079e800000040300473045022100f3b816c8612ce1d69e6763c5d2af2a237b37ea12f33228c0942cdd8dc5239df7022042157b8cc9b850a9602ca3221de2279c7262824b62a7b3c95adbc788aa97381e00760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018af8079eb7000004030047304502203405afa8e251fe5abebd9821fc87e77e01bce5697706fef23bf49f89f2953eb1022100c0382d36190f3c0f81068dceef5565d3353250aa3310ce4aee311fa7808a0adc . . . . [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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