clf.clf.academy
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:41:40:79:59:24:06:e6:f6:b6:50:2b:c3:c2:b5:80:c7:5f was issued on by Let's Encrypt.
With 6 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=clf.clf.academy
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:41:40:79:59:24:06:e6:f6:b6:50:2b:c3:c2:b5:80:c7:5fSerial Number (int): 370653198244540908745198705788440767678303
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 9d:52:13:75:d4:7a:18:2d:60:f0:30:7e:d0:93:cf:70:05:e3:22:b3
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): af:a7:c9:3a:6e:b3:2d:1d:5d:5d:87:5f:4b:35:db:42:a8:50:60:b3
Fingerprint (sha256): 17:3b:e4:e2:6d:eb:1a:1c:04:e1:d1:e7:37:6f:23:50:b9:31:38:4c:52:7e:79:ca:9e:5f:14:9c:b5:2d:81:a1
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate clf.clf.academy
6
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for clf.clf.academy
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
cabotlearningfederation.net
clf.clf.academy
clf.uk
www.cabotlearningfederation.net
www.clf.clf.academy
www.clf.uk
clf.clf.academy
clf.uk
www.cabotlearningfederation.net
www.clf.clf.academy
www.clf.uk
Other certificates including the domain name clf.academy
(limited to 100 certificates)
Certificate
The complete raw certificate details for clf.clf.academy in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFvTCCBKWgAwIBAgISBEFAeVkkBub2tlArw8K1gMdfMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAyMTQxNDAyMDhaFw0x OTA1MTUxNDAyMDhaMBoxGDAWBgNVBAMTD2NsZi5jbGYuYWNhZGVteTCCASIwDQYJ KoZIhvcNAQEBBQADggEPADCCAQoCggEBAK1mUjMF/eCwQL3oFEMKOoIMPptiBoNg PUczu1uXXKCwuHdCq034qCsneaG4veO76M/m8ehjmdhgUeYVHTTzML+FjuD07CPx JUigUNzfaBPyUsp2N/JhCRVcTX2zvPPfbpVaU8NPmBz7FRaL25KjtzA9n9uXkFp0 jPtu0lx4Fo8re/uy7nInBUV8aeP/52eocQmwdkMPiXYYurnMgjo4JNXB2H0Tp+Ox JslPofInMKVsYewKtlveDECm2dzFubA8AASs5v4iLA78cee8WctDen+haxCtZI/S e7fmwFDZbhkcGoNCOPllq9J0AZqULBYAIjJLPB0i2ayQLNgwdmS+qq0CAwEAAaOC AsswggLHMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYB BQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUnVITddR6GC1g8DB+0JPPcAXj IrMwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYIKwYBBQUHAQEE YzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0c2VuY3J5cHQu b3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0c2VuY3J5cHQu b3JnLzCBgQYDVR0RBHoweIIbY2Fib3RsZWFybmluZ2ZlZGVyYXRpb24ubmV0gg9j bGYuY2xmLmFjYWRlbXmCBmNsZi51a4Ifd3d3LmNhYm90bGVhcm5pbmdmZWRlcmF0 aW9uLm5ldIITd3d3LmNsZi5jbGYuYWNhZGVteYIKd3d3LmNsZi51azBMBgNVHSAE RTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRw Oi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQMGCisGAQQB1nkCBAIEgfQEgfEA7wB1 AHR+2oMxrTMQkSGcziVPQnDCv/1eQiAIxjc1eeYQe8xWAAABaOyHfN8AAAQDAEYw RAIgIw9IgWckf7PoeD4cAkcCDWDoJFOsIVHvxmJaw3PgvWICIAyr0JyNgdVSXozr 3FxFU4kPBaZMS68YNc64nhr5zcnPAHYAKTxRllTIOWW6qlD8WAfUt2+/WHopctyk wwz05UVH9HgAAAFo7Id86AAABAMARzBFAiEA+OGjcZ2UH9FwWKAMTz51D4jARWtA twSox7Kij6127FgCIAWRC8YEjfWhM6TDOvAiVdk11203TSV4/BKtKJqzuenQMA0G CSqGSIb3DQEBCwUAA4IBAQCAJR5D7n8qixiPK10PoQfYlwR3y1o1AGQg+jp3LIiW YPvlh8nDMYXptMHOhSapjvJsC/h25YvBu8sBCtQFcUG7ywOZQOchPCfjCM4B+dwf 5eIduNg1zc7dXdTuyLMClxGu3C8JyT4UxeuJY3zirtrEgk34W0dgYia9Ij/nHlde AgLZiNI+SsRtTTLv+lB+clxAPWh4jd0VmKFaFaBtjBBgdoBGJPvcXZqvDJQMm34j Iktf6Sg5rr8+j2Ghw0WaSbjq7nLvofFr2pY3tE4u68PGir0HqYjA+BwFSplYWxYf zqGAABO7ce3VuRHwyYY/Is7WVEzzagFR1fm4q/AqEPwN -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArWZSMwX94LBAvegUQwo6 ggw+m2IGg2A9RzO7W5dcoLC4d0KrTfioKyd5obi947voz+bx6GOZ2GBR5hUdNPMw v4WO4PTsI/ElSKBQ3N9oE/JSynY38mEJFVxNfbO8899ulVpTw0+YHPsVFovbkqO3 MD2f25eQWnSM+27SXHgWjyt7+7LucicFRXxp4//nZ6hxCbB2Qw+Jdhi6ucyCOjgk 1cHYfROn47EmyU+h8icwpWxh7Aq2W94MQKbZ3MW5sDwABKzm/iIsDvxx57xZy0N6 f6FrEK1kj9J7t+bAUNluGRwag0I4+WWr0nQBmpQsFgAiMks8HSLZrJAs2DB2ZL6q rQIDAQAB -----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 370653198244540908745198705788440767678303 . . . . . . . . [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 2019-02-14 14:02:08 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-05-15 14:02:08 +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 'clf.clf.academy' . . . . . . . . [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 21889683169663721332612302942567176429676553412761378181614651175535856305350563184654238623371330977626759634943006319639931604398383662048375313511195663061930858157300184634330194989648407934959153887707299677336805966437407991842889363740519697096800055301528785961754653474949917339497269545886692897411200489199981889226775784099456875330566653546229681141735526669024751564795092585303003222381144800253298572210382384630677853857840900491843040071443955076396802225309485528919487128334978857050253250353046722012111879907522123918329032647423349988107538506684606957540049376211718274766065387039968555084461 . . . . . . . . . . . . . . . . . . . . [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) 9d521375d47a182d60f0307ed093cf7005e322b3 . . . . . . . . . . . . . . . . [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 (122 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cabotlearningfederation.net' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'clf.clf.academy' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'clf.uk' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cabotlearningfederation.net' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.clf.clf.academy' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.clf.uk' . . . . . . . . . . . . . . . . [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 (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef007500747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc5600000168ec877cdf00000403004630440220230f488167247fb3e8783e1c0247020d60e82453ac2151efc6625ac373e0bd6202200cabd09c8d81d5525e8cebdc5c4553890f05a64c4baf1835ceb89e1af9cdc9cf007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000168ec877ce80000040300473045022100f8e1a3719d941fd17058a00c4f3e750f88c0456b40b704a8c7b2a28fad76ec58022005910bc6048df5a133a4c33af02255d935d76d374d2578fc12ad289ab3b9e9d0 . . . . [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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