www.dfuco.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:85:1a:04:4b:7f:25:a8:96:07:f0:2c:93:4e:a3:cb:db:75 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=www.dfuco.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:85:1a:04:4b:7f:25:a8:96:07:f0:2c:93:4e:a3:cb:db:75Serial Number (int): 306628994824097749199095878105640651709301
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 5e:5d:cb:9a:71:98:41:94:12:42:c2:de:ba:ad:35:02:f1:a1:23:01
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): e1:b8:17:dd:18:55:2f:ee:3f:6e:5d:8a:50:f5:fb:14:5b:ff:1a:b4
Fingerprint (sha256): a0:39:43:85:c0:a1:bd:cd:9a:be:fc:95:20:1a:63:0e:05:55:79:e6:28:f6:2f:51:78:4b:62:54:6a:81:93:16
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate www.dfuco.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.dfuco.com
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
9 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
www.dfuco.com
Other certificates including the domain name dfuco.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.dfuco.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGUjCCBTqgAwIBAgISA4UaBEt/JaiWB/Ask06jy9t1MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAxMDExNzQ4MzlaFw0y MDAzMzExNzQ4MzlaMBgxFjAUBgNVBAMTDXd3dy5kZnVjby5jb20wggIiMA0GCSqG SIb3DQEBAQUAA4ICDwAwggIKAoICAQDoTUEwLOEn03tdyyIm0aL/e3KUdU8d53Mv iycfIttVG8WDpOafmtrZXOVbILtHQSxkIXSQ6VrqR5RrDlW52eGwODQDIR6asiiR XIBkrP3OmN6TUyIvEJZlu5XfVO+gKwVwhpgJGK0SvGEtLyuXoUcslBAdy/oiHev2 DUAVg8dHz6wqP2YN3HxJeVbC9LeDcY2WeL8fD7PZojoGX7pgQgXZLLcyxkDmkvrk 8i9QW3liOdUkhsW1tp0wmOtlcb/KXVd9Tf6R/bR7alPPsAG8tBlBY6ha4q3SBKfc poEUdwLTXwps00VGlkQZq1UJ9g5As9KFVp+5RR9P66akor7OPtQFOhSo3CrYtTfM CTw0N2tn6FnzDRwsSKpRfQYMYIKX5TJuca0uMSY9rwLXiSm1mIPeGpvUs36CYHUK zXK9dfCE1GEtgC2n2p0ame9lxaNDTvI0nTGNgc98fpEu4mlx8/cdVwiJa+pOTMPT U7xHAHqReJKZsnNyTipr6wCKqsHuyLkK0lP/ophH9pN5KpxVPoVgK2Mow8kFhidf sOt9KILDoel2w8CWBon92wS0bzeScainHk7Vo2Tojo3Ol9VKgT0TQltopTfy/vvj 1q4BqRvBtQkhNP6l8beygjqUgQMu4+DYA55SBsdqVRqO+PwukbHHGlryg2UTJo1d YvsV+2bHswIDAQABo4ICYjCCAl4wDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQG CCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBReXcua cZhBlBJCwt66rTUC8aEjATAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86js oTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14 My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14 My5sZXRzZW5jcnlwdC5vcmcvMBgGA1UdEQQRMA+CDXd3dy5kZnVjby5jb20wTAYD VR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYa aHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEEBgorBgEEAdZ5AgQCBIH1BIHy APAAdgBep3P531bA57U2SH3QSeAyepGaDIShEhKEGHWWgXFFWAAAAW9icDnHAAAE AwBHMEUCIA5/i5ZF0y+PtLZjFucUaK9zwdA8KXj17VVY8AKuDa8PAiEAm1Xa4r6f LL0T3Jdhoz3WkPPcYGAMnC7sQMVsi3VMX1AAdgAHt1wb5X1o//Gwxh0jFce65ld8 V5S3au68YToaadOiHAAAAW9icDn2AAAEAwBHMEUCIQDH3ILvJB7B1DEdPzyMwHmg e1zBblikRxFwHefBlfcBxwIgGlZfOAdPHitB+d1hq+q5Apez34LzV9uVBRPrfMJV Db0wDQYJKoZIhvcNAQELBQADggEBAIhJ0s85oDKwpx/im4DkeZeh9yOPYj/vcTKl Td9jmOTLZ2HxIP60K5zfZpqNSVUgUZX3HjD8XVXpCZyOPFsRTZUCflma8UjxWUt8 cokPQSsCzrR4B/wCjT1RvCiMIqyNLhsjQXLj73xmJee7g9bDxI2zm5fJeupHFJmc yxhkacHU/tI45sE+oYtw8pim6P/HJeEHZkluKiim3hShZxtZ4tBYZTC8zjZWACr4 90XmjA/K9T2h7Od+fKxZzwerk75SmKtF0GWotH4rh5VdCPZm/bAa+QrtSjBYajjo I3gwA3O6jN2+Ykzt6ORKKFfw0QnBtzE2tGlgL0bJ2QJmZde86TU= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA6E1BMCzhJ9N7XcsiJtGi /3tylHVPHedzL4snHyLbVRvFg6Tmn5ra2VzlWyC7R0EsZCF0kOla6keUaw5Vudnh sDg0AyEemrIokVyAZKz9zpjek1MiLxCWZbuV31TvoCsFcIaYCRitErxhLS8rl6FH LJQQHcv6Ih3r9g1AFYPHR8+sKj9mDdx8SXlWwvS3g3GNlni/Hw+z2aI6Bl+6YEIF 2Sy3MsZA5pL65PIvUFt5YjnVJIbFtbadMJjrZXG/yl1XfU3+kf20e2pTz7ABvLQZ QWOoWuKt0gSn3KaBFHcC018KbNNFRpZEGatVCfYOQLPShVafuUUfT+umpKK+zj7U BToUqNwq2LU3zAk8NDdrZ+hZ8w0cLEiqUX0GDGCCl+UybnGtLjEmPa8C14kptZiD 3hqb1LN+gmB1Cs1yvXXwhNRhLYAtp9qdGpnvZcWjQ07yNJ0xjYHPfH6RLuJpcfP3 HVcIiWvqTkzD01O8RwB6kXiSmbJzck4qa+sAiqrB7si5CtJT/6KYR/aTeSqcVT6F YCtjKMPJBYYnX7DrfSiCw6HpdsPAlgaJ/dsEtG83knGopx5O1aNk6I6NzpfVSoE9 E0JbaKU38v7749auAakbwbUJITT+pfG3soI6lIEDLuPg2AOeUgbHalUajvj8LpGx xxpa8oNlEyaNXWL7Fftmx7MCAwEAAQ== -----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 306628994824097749199095878105640651709301 . . . . . . . . [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 2020-01-01 17:48:39 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-31 17:48:39 +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 'www.dfuco.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 (4208 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 947708562215426932478710613425768706984317790622575377068867301113119213144280937674752141767538506230756496753160038891626444914290594833751205158013502037565894453869488900194552263397643829083385658899748120147145540088607076014123755220799740768441081098251695734224610738432511468354341137803711360046718007835159124652460922115016888844121552079866284037286995580777970212034375907263783156501041176323319386862459815649330610929223913374295029785931196384128273685278795113557882872164331142345539293474134582285481191356448502831201614919526433448954076835366846671108747070793094885786439085854766661886098739783882472926640878876080164978089096032480869804806118440297005205847806654427700291157802126144150512372963303986179575488882296663657186469485067648399889241864587725084155283070274174097219816397110455395988382915110211264372514507332220719527581016847833224256325325134384322943968870440461843937329815508649816050417716330538502050122746868367570755197650232468892221800896679812021407386689250499887288286764538466541137151374082120008304767880274390596708890373335732451254231398060548876671587447123278257261589204676197469182921774144346282406229637979535957697270058137907740110600489001998066493317105587 . . . . . . . . . . . . . . . . . . . . [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) 5e5dcb9a719841941242c2debaad3502f1a12301 . . . . . . . . . . . . . . . . [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 (17 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.dfuco.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 (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) 00f00076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f627039c7000004030047304502200e7f8b9645d32f8fb4b66316e71468af73c1d03c2978f5ed5558f002ae0daf0f0221009b55dae2be9f2cbd13dc9761a33dd690f3dc60600c9c2eec40c56c8b754c5f5000760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f627039f60000040300473045022100c7dc82ef241ec1d4311d3f3c8cc079a07b5cc16e58a44711701de7c195f701c702201a565f38074f1e2b41f9dd61abeab90297b3df82f357db950513eb7cc2550dbd . . . . [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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