dfuco.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:17:b2:f6:45:42:dd:a2:93:3b:a4:dd:d4:1e:9b:92:de:69 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=dfuco.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:17:b2:f6:45:42:dd:a2:93:3b:a4:dd:d4:1e:9b:92:de:69Serial Number (int): 269401233527523153298850921767810970607209
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 64:9a:f4:7f:15:ca:45:03:19:c0:44:2b:2f:7e:14:ed:b1:2b:cf:e5
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 19:7c:4e:79:3e:56:f0:e6:35:b5:1c:52:ef:30:75:a0:db:2e:f3:9d
Fingerprint (sha256): 31:92:dd:be:87:78:89:79:54:07:87:b1:29:5f:6a:23:47:ed:f8:aa:ac:bb:bc:8f:66:44:e0:66:08:94:56:a6
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate dfuco.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for 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
dfuco.com
Other certificates including the domain name dfuco.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for dfuco.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGSTCCBTGgAwIBAgISAxey9kVC3aKTO6Td1B6bkt5pMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAxMDExNzMwNTZaFw0y MDAzMzExNzMwNTZaMBQxEjAQBgNVBAMTCWRmdWNvLmNvbTCCAiIwDQYJKoZIhvcN AQEBBQADggIPADCCAgoCggIBANTYjaq9ZDJ7DTorkvGL9f+C8aRSCFToF6/t2Go4 XA1EOqQXXRODW0cmGI798nbSfEb+RT5NT2hG/qQUtCu+lQfxmHSAMU3WtfPUOcGx f3A8Yg0l+4eE0amMKS4IagZ8I3vq/LY0F5dnuiH4UawgxaYEBsH/mhYpV8qrH83v By5mZydT7XU+IrpMJklZJHDCv/uOS89JU1NnZLLHIe2btXkQbTZc3NQW/GZpk35y g4wFSwiBaaOeDYAwywP16nmxiE8fi3/xZIEFLcm1xR47fBDB42zHnr062jFSduiS RLMwojnt3jF3Bv7GfQSRb760tfX/gnEn+c7SX4CI2dPhX9CrcmQO7ElKpoOAkKwk m/oEOywn1A9hz+pZFx6b/P+VjT5muE52bukoOZG8pTJG6JMijGNoRIngrXUileeA 3XdCo1yBpvzz5FxzwkWE3FmvCC/zQqCaLeETmWcY374agJldFHIOpOwHn798BZ1J fQMi+KtDGySeKAHAPZ+KB0K+w6orzBtjjKsh23z5OjTIRo7v+twfwx76gsUYdgiI bG+e41WY45lvzaxXOQjk4Y8ebdniqvornjh3ZETnZG7Hj5UDolx41mG7IvxY3V3h 3BkAtkKXn7fZszInpHZBFsjYIDW46ooMyDg59VBsGtIi29xswVzs8xntdPR3daMf Nq7dAgMBAAGjggJdMIICWTAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYB BQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFGSa9H8VykUD GcBEKy9+FO2xK8/lMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8G CCsGAQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxl dHNlbmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxl dHNlbmNyeXB0Lm9yZy8wFAYDVR0RBA0wC4IJZGZ1Y28uY29tMEwGA1UdIARFMEMw CAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9j cHMubGV0c2VuY3J5cHQub3JnMIIBAwYKKwYBBAHWeQIEAgSB9ASB8QDvAHUAB7dc G+V9aP/xsMYdIxXHuuZXfFeUt2ruvGE6GmnTohwAAAFvYmAAswAABAMARjBEAiAC s9kR0J5LOYw/BnX43Us+K1YthXZ89p5dsa9/kIz+1gIgLhWRxEYPceQ0b7yy1s0U EM+mreFbZwGJaSA6sSl8GOoAdgDwlaRZ8gDRgkAQLS+TiI6tS/4dR+OZ4dA0prCo qo6ycwAAAW9iYAJ/AAAEAwBHMEUCIApl0EbUqI+GBaUMvW+PWhCoRtdkwLjKowM9 niak0tcSAiEAhhsEgpNjalLqXoq9KVvY72AheAMY2Cb5pYBsJ9IVHYAwDQYJKoZI hvcNAQELBQADggEBAAegbWtcOq2x+Lznxmmvvmc+hjMvFvqGeQf15yrYEKAqNFK/ lDtsVmpv15h1nsZim9Aw9P+EHfE5rqIahQnI1YWgYg4LId4xQdZCX0VVPboXDsiw sblqTCJXTyQV4VkyXl3J+0KttwfWSf5eNzEjmD4IM77+NOMRpCHKL4eaYSW41NnT vPDvTIfs4E3eiRxe3/EK+EqZ+EmBrI021wIaJUVK8tS5+k0q0YdeT0Rznj/3hnPD JZYNVC9IE9eEG8gy6jH9AiDFdPxiFgzLxMlgDn/eysE4QS191py/2wEI/k9Vf2O6 4WC1Aw4wUf5Rvre3vwYK6AMhmwgwSrG7hdQ3/EI= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA1NiNqr1kMnsNOiuS8Yv1 /4LxpFIIVOgXr+3YajhcDUQ6pBddE4NbRyYYjv3ydtJ8Rv5FPk1PaEb+pBS0K76V B/GYdIAxTda189Q5wbF/cDxiDSX7h4TRqYwpLghqBnwje+r8tjQXl2e6IfhRrCDF pgQGwf+aFilXyqsfze8HLmZnJ1PtdT4iukwmSVkkcMK/+45Lz0lTU2dkssch7Zu1 eRBtNlzc1Bb8ZmmTfnKDjAVLCIFpo54NgDDLA/XqebGITx+Lf/FkgQUtybXFHjt8 EMHjbMeevTraMVJ26JJEszCiOe3eMXcG/sZ9BJFvvrS19f+CcSf5ztJfgIjZ0+Ff 0KtyZA7sSUqmg4CQrCSb+gQ7LCfUD2HP6lkXHpv8/5WNPma4TnZu6Sg5kbylMkbo kyKMY2hEieCtdSKV54Ddd0KjXIGm/PPkXHPCRYTcWa8IL/NCoJot4ROZZxjfvhqA mV0Ucg6k7Aefv3wFnUl9AyL4q0MbJJ4oAcA9n4oHQr7DqivMG2OMqyHbfPk6NMhG ju/63B/DHvqCxRh2CIhsb57jVZjjmW/NrFc5COThjx5t2eKq+iueOHdkROdkbseP lQOiXHjWYbsi/FjdXeHcGQC2Qpeft9mzMiekdkEWyNggNbjqigzIODn1UGwa0iLb 3GzBXOzzGe109Hd1ox82rt0CAwEAAQ== -----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 269401233527523153298850921767810970607209 . . . . . . . . [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 17:30:56 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-31 17:30:56 +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 '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 868335560931118454151068966330393313312230310173378006086097557762026754526332927635116038284627948512695650740454250139902374127414954864310045583829919830105310859567989345869485987704363270228843100489762288390993390036201226924010926022270182269392631240883413873724348531066566308244080741750955746962375590149813254448185703670929277500313240892201339039048901211670088639410260955763900420936560945701359805451441792025332973834529574376208966402722413681255801978561032935234467812920299171210245664174141825315583112158365003178903765852553508185553473067768605310783375474669561600791258648723227983589391482937010824294767562609502154542880585687366368931223244276118749297595942119484448022718009965174951323284055069278696719355567039402033493305353121865338453905958018836928786507133454821361952583816954059785503730002674390129543373902716651553478908414772484054478505754068303335962552409124251358577648260105600363964309187243442406255072173743021448428323231629901454531680107518538536775252706158524080483601044496809783100822924556074531735407272221239566704562451156122911404912113020801745740241376714222234497278262802696589590667620772675165391926940791491406447466554265729010784104885320011982232287096541 . . . . . . . . . . . . . . . . . . . . [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) 649af47f15ca450319c0442b2f7e14edb12bcfe5 . . . . . . . . . . . . . . . . [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 (13 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '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 (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef00750007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f626000b30000040300463044022002b3d911d09e4b398c3f0675f8dd4b3e2b562d85767cf69e5db1af7f908cfed602202e1591c4460f71e4346fbcb2d6cd1410cfa6ade15b67018969203ab1297c18ea007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016f6260027f000004030047304502200a65d046d4a88f8605a50cbd6f8f5a10a846d764c0b8caa3033d9e26a4d2d712022100861b048293636a52ea5e8abd295bd8ef6021780318d826f9a5806c27d2151d80 . . . . [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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