www.dfuco.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:c8:4c:03:91:63:09:75:da:f2:10:f6:de:93:c2:d6:da:5d 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:c8:4c:03:91:63:09:75:da:f2:10:f6:de:93:c2:d6:da:5dSerial Number (int): 329494371032834570305125090573861629909597
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 72:db:8e:a3:02:3e:45:5d:8e:50:fa:3b:cb:c8:b9:a5:33:19:fe:b9
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 75:6d:73:b9:d1:88:91:07:eb:3f:a7:52:a4:a5:23:96:e5:54:82:ea
Fingerprint (sha256): cb:29:92:bc:b4:fd:d0:bd:71:8f:96:c4:68:26:e0:80:8a:5c:02:f0:c0:05:26:88:4b:fc:f4:0d:20:25:cb:35
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----- MIIGUzCCBTugAwIBAgISA8hMA5FjCXXa8hD23pPC1tpdMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEwMTMwODQ1MjFaFw0y MDAxMTEwODQ1MjFaMBgxFjAUBgNVBAMTDXd3dy5kZnVjby5jb20wggIiMA0GCSqG SIb3DQEBAQUAA4ICDwAwggIKAoICAQC5e93wkHziWNH2OjTahUlzxm8CdeWxwRgT mRkACfSp1v8ifiAvUQB3LkxdFhtaSX325cIPxGiQYLsdknW9A6QLVuG7CqMb1HjK 1HhrLJ/bV2R992p2sXbp8MMbDIbIrcf4AIbJbmROnlyhf9q/FFSkCp9jOtzvtUgY 4FnfKS91QYVknSWBia3sWgGtyNsuerCiF6BsVradltZ+4wQddnzBq0Nsriaz/O+r xHtF/gGj5X3A8TMsHF7L07m2HGDNIpgPb7izWbnNCt90WyIPFybM+UAmo3mdWU7E eZz5Ft55B1VzIGa5j0D9vjmuP1OlMt/NMqjZQSsXIoHzSwTngqKGz5Fy8hNPRing CbJ4PA/Vl5Hqitg3SIWMYfmGds3vx11/ZD7dnaIL2YJBMfd68Brorwgr7knFach7 WAZdDnDxpN7wJR9VMcNxspNzngHClQ18sYG+V0Z04SH15zyRDRkoH4EUNJkT1CvS 19iXh4EHtzI9VeSeI/o0kCeOfSneb7NnF0T01ggtRW63gzGuSpTAVeX+1XqhgCUb KQOSxQUw1crAbSkdiQQRX+Xd8P01jKJbvMRQ67D3ORpO8YPYIhZv4n5B0+vA1+sZ C7y4sQ2utyp9Qs1YT/6cLTZnXXgeyHsN68+lsMeF5hnRrTSgsd95Xj888xgk0V9y DyXiNOjhhQIDAQABo4ICYzCCAl8wDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQG CCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBRy246j Aj5FXY5Q+jvLyLmlMxn+uTAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86js oTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14 My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14 My5sZXRzZW5jcnlwdC5vcmcvMBgGA1UdEQQRMA+CDXd3dy5kZnVjby5jb20wTAYD VR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYa aHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEFBgorBgEEAdZ5AgQCBIH2BIHz APEAdgApPFGWVMg5ZbqqUPxYB9S3b79Yeily3KTDDPTlRUf0eAAAAW3EghDGAAAE AwBHMEUCIQC6y6bAYay9swY2MZ+iY1FbsI53+sM0E0XvZsG5KuiyrQIgbi5AthQJ 26gXGKqPLYBqnQyIeL4uBn8YvExPVh11VOIAdwDwlaRZ8gDRgkAQLS+TiI6tS/4d R+OZ4dA0prCoqo6ycwAAAW3EghK5AAAEAwBIMEYCIQDk2bOF+LR0bpvXk9VekywM DVzbq/IedTF/whhYBuqufAIhAKGlkM1/T4kR7rjeorjjTm4OvWfnX4a7yWWz1lzw B2bdMA0GCSqGSIb3DQEBCwUAA4IBAQBLy86oQAnPu+dkXZvMwgOsiNw8AHYA0IpJ efyiNTd3KP9YCe9x4f2625HfztcZOP/Nf+6gZfWWnEItQZTq7xH8U2le6TTrVll3 5GdtbQJeKS3gCyB95Rk5yfPiKjPLQxpXk/4vpHoT7fRCaYwaVk9d2F9yLQxmpcM9 ADEZy3oSvn2PBc+t3eL4qBjpfs2jigFAaVA8gouogmKAsomeuzLLtkHaSBN/S/tl ul+yvnxdxDqh0a12sUYlN9Z042A8WDR5doKS/Osq8LrHbFViD19qVf1mfUf0DrTt 7Un+tXjle5qz8AlU7NZVQu3x+P0F0OtQ67LMc/4JS9BnV93QKs8l -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAuXvd8JB84ljR9jo02oVJ c8ZvAnXlscEYE5kZAAn0qdb/In4gL1EAdy5MXRYbWkl99uXCD8RokGC7HZJ1vQOk C1bhuwqjG9R4ytR4ayyf21dkffdqdrF26fDDGwyGyK3H+ACGyW5kTp5coX/avxRU pAqfYzrc77VIGOBZ3ykvdUGFZJ0lgYmt7FoBrcjbLnqwohegbFa2nZbWfuMEHXZ8 watDbK4ms/zvq8R7Rf4Bo+V9wPEzLBxey9O5thxgzSKYD2+4s1m5zQrfdFsiDxcm zPlAJqN5nVlOxHmc+RbeeQdVcyBmuY9A/b45rj9TpTLfzTKo2UErFyKB80sE54Ki hs+RcvITT0Yp4AmyeDwP1ZeR6orYN0iFjGH5hnbN78ddf2Q+3Z2iC9mCQTH3evAa 6K8IK+5JxWnIe1gGXQ5w8aTe8CUfVTHDcbKTc54BwpUNfLGBvldGdOEh9ec8kQ0Z KB+BFDSZE9Qr0tfYl4eBB7cyPVXkniP6NJAnjn0p3m+zZxdE9NYILUVut4MxrkqU wFXl/tV6oYAlGykDksUFMNXKwG0pHYkEEV/l3fD9NYyiW7zEUOuw9zkaTvGD2CIW b+J+QdPrwNfrGQu8uLENrrcqfULNWE/+nC02Z114Hsh7DevPpbDHheYZ0a00oLHf eV4/PPMYJNFfcg8l4jTo4YUCAwEAAQ== -----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 329494371032834570305125090573861629909597 . . . . . . . . [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 2019-10-13 08:45:21 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-11 08:45:21 +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 756708109911201414727513079336862625899914239162819001180151219533513953314659364841910670771613864189842867746502900080390836181907838661367596306066655494778535591884153539815854590244412023868340095489534331605397398386285577070137203622490324460128230453107570679083645276786781995778798419388668895315848524379313477808782669571753373406533061881452357811008385690954922388579888946855751058888689646808542633039201691106130702847911690871023186459672076509486822933373865038717673147334053234211387716101362464653485780573010120280750913848771946336334757218073506510918817343670343270899395980399130328673192109512376971141607535798751055879540494488599490534465132324958739357859944174603284765721870740460560204822138916416589087269703955099396247806517806334489063726273898962026609806276055225418604177606041216784281899315681102716969449994371030349937166138148947804743504594569977590081890704852465370899310485591321293047617245950533973631342684834494971118385557819999577916958223111365875324740807696807235490453049790999616298344935973402777900453130947550233997815778787884531974278759533951637487031538307058478581512729741175872457018046121488365006655996424997486591620638991527715573816603764939719723364966789 . . . . . . . . . . . . . . . . . . . . [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) 72db8ea3023e455d8e50fa3bcbc8b9a53319feb9 . . . . . . . . . . . . . . . . [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 (246 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes) 00f1007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016dc48210c60000040300473045022100bacba6c061acbdb30636319fa263515bb08e77fac3341345ef66c1b92ae8b2ad02206e2e40b61409dba81718aa8f2d806a9d0c8878be2e067f18bc4c4f561d7554e2007700f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016dc48212b90000040300483046022100e4d9b385f8b4746e9bd793d55e932c0c0d5cdbabf21e75317fc2185806eaae7c022100a1a590cd7f4f8911eeb8dea2b8e34e6e0ebd67e75f86bbc965b3d65cf00766dd . . . . [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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