www.dfnco.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:24:f5:f9:4f:f1:f0:9e:01:50:a1:28:ba:8d:dc:3e:28:1f 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.dfnco.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:24:f5:f9:4f:f1:f0:9e:01:50:a1:28:ba:8d:dc:3e:28:1fSerial Number (int): 273913978366798417458760130723800829274143
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 0d:31:ac:27:bb:6a:7c:a5:1b:84:4f:cb:f0:91:7a:29:5c:7b:d9:6d
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 21:46:ba:20:d2:08:24:2e:ae:4f:56:3b:b9:98:2e:cf:1b:0a:db:21
Fingerprint (sha256): 59:2c:70:9f:c4:be:c1:93:ac:bd:77:7b:99:21:0f:af:89:6f:27:0f:19:d9:4f:03:84:3e:88:f9:49:9e:bc:d6
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.dfnco.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.dfnco.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.dfnco.com
Other certificates including the domain name dfnco.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.dfnco.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGUjCCBTqgAwIBAgISAyT1+U/x8J4BUKEouo3cPigfMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEyMzExMjU3NTZaFw0y MDAzMzAxMjU3NTZaMBgxFjAUBgNVBAMTDXd3dy5kZm5jby5jb20wggIiMA0GCSqG SIb3DQEBAQUAA4ICDwAwggIKAoICAQDYZxIl93pwDaX3jzsu+s0VSaAPEDB2NgzB MeptdRSBYkxaAMyjskf1MaNKo+D+P/MZZJqcmn2GYB4I8kL9tgwDMKLUCJY1oaMW qDXoas5VOK1ry86XckI/KrZd/6rzSQI+Rix+Tk7OH2YMzFvLz6VfYGtYUig8hgwq ncHZRhmGqwENuWFw1v7X2xf6eoy2saF3ve4B5/iHiRIdJiE8FLWrp++whMri/g1b /eCVxKJUQcOJ6C2ihrPWy8hgkAKbEIRrKpU8PhjgbkON0kUcwBCZAgbrfoAE03JL SPkp/rZ/QJAoPqcmrQuRwoaOv6FAz7lyG11nNnuYLEXA18/UnS7jLBAGKqSF6dYF +zw54wXuolLMN1zgWz+bopRGNuekZS8W12KyHCR3AIlTIieyPHFJyEj+hRhrjM3x 4/Hq55rdHrgCojamRawAu9s41U7SQ+9ze/MmO0yODl29MRL5tCbjkfjPaN/S+ozg KYRhTslSpvyiQT346nXAHVe7TVsnAFIJtwhzBUQN3jXxY6QK1+Oly/ii4FvmyQrW tgXR+f78+o0x8RoQGKFZDfpSUEbQXgCHqULuheZf9rn6ZecEyUDX2gjn0neauqtb VFklCj+LqcgmZ/ZCy8TA3OfEmp7mUVsS4guJ2GuanewAqUrnCfEqH3x3SidC6tBQ 2CRCRe377QIDAQABo4ICYjCCAl4wDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQG CCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBQNMawn u2p8pRuET8vwkXopXHvZbTAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86js oTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14 My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14 My5sZXRzZW5jcnlwdC5vcmcvMBgGA1UdEQQRMA+CDXd3dy5kZm5jby5jb20wTAYD VR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYa aHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEEBgorBgEEAdZ5AgQCBIH1BIHy APAAdgBep3P531bA57U2SH3QSeAyepGaDIShEhKEGHWWgXFFWAAAAW9cP7XQAAAE AwBHMEUCIQCyvxHO8PGVmDg4eWPUCPFDbT3BxFn7MJNkvsNRRvMOAQIgbY7JYDDE PGQZW/fiphzKB38JthPaZgqIgpMAMDDq4mgAdgCyHgXMi6LNiiBOh2b5K7mKJSBn a9r6cOeySVMt74uQXgAAAW9cP7XFAAAEAwBHMEUCIQCs7y6FLUo+emPVs6CiFF92 /oDAcI/Lujf9b2aBXXkToAIgEFfKj0HHQm/MCuW39Ehfr5EtdEElBCtFjRSYcLwM tWswDQYJKoZIhvcNAQELBQADggEBAAdmhMWnBoX6DW9PltEK4lUvumIB5fiwTFBX AlEdzPFAN0YtLXEziOE8MG7w+OhVZBwHfiiPIPjPoI+GauZ/9+OW4iWQSM03hibE IKWjkcv42nsY5iXFpxwom52Ca8erBuWIzw5ew/YvrqBFEmnOtEA5YPngX2KQ2Jmh 0WgL555z35BwIdE8hQSYLQtSHhggDVjwXt26/KKGvGgATg+blueISqkYN9S9oUe3 XwXk1KItOvqCWtaK3+iHc5vT+F3zwc4GPtLpEgsvfWhr46sdz9k/n53sIPrNeO4F 9MbkNW9Gcmc0wFYkPZ+hZNljQlB4p0K19NyaKE0q06AK4GobRTA= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA2GcSJfd6cA2l9487LvrN FUmgDxAwdjYMwTHqbXUUgWJMWgDMo7JH9TGjSqPg/j/zGWSanJp9hmAeCPJC/bYM AzCi1AiWNaGjFqg16GrOVTita8vOl3JCPyq2Xf+q80kCPkYsfk5Ozh9mDMxby8+l X2BrWFIoPIYMKp3B2UYZhqsBDblhcNb+19sX+nqMtrGhd73uAef4h4kSHSYhPBS1 q6fvsITK4v4NW/3glcSiVEHDiegtooaz1svIYJACmxCEayqVPD4Y4G5DjdJFHMAQ mQIG636ABNNyS0j5Kf62f0CQKD6nJq0LkcKGjr+hQM+5chtdZzZ7mCxFwNfP1J0u 4ywQBiqkhenWBfs8OeMF7qJSzDdc4Fs/m6KURjbnpGUvFtdishwkdwCJUyInsjxx SchI/oUYa4zN8ePx6uea3R64AqI2pkWsALvbONVO0kPvc3vzJjtMjg5dvTES+bQm 45H4z2jf0vqM4CmEYU7JUqb8okE9+Op1wB1Xu01bJwBSCbcIcwVEDd418WOkCtfj pcv4ouBb5skK1rYF0fn+/PqNMfEaEBihWQ36UlBG0F4Ah6lC7oXmX/a5+mXnBMlA 19oI59J3mrqrW1RZJQo/i6nIJmf2QsvEwNznxJqe5lFbEuILidhrmp3sAKlK5wnx Kh98d0onQurQUNgkQkXt++0CAwEAAQ== -----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 273913978366798417458760130723800829274143 . . . . . . . . [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 2019-12-31 12:57:56 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-30 12:57:56 +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 'www.dfnco.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 882845667725252460145002734865676970571569812124198141083198593168007346085834590422728055286574720908252689258076149176658479510423315050433964020681051269604873821187710805027101104105427221292182391874692527448299830337074130102258785236661054547187793600402144066462137535938603508370853397892904057500387447258169466739900897357485187569090641982215215671185052731731147731279184958817086969800613737524631134711773402026785462555564178277529777031345952709842544721286730758364286677182554559474109873155138976183312240470691872472526760691489077614051151299014315363910730762402055175731363301562948707620292526488732351765524494740219025439926391886048192685849738852031259511501004676919908381744280308294869013636590174525775492792729504321085882048881586956436853120288571693209849240954649629637618514630579805994155929694562365739102678299827000274014291797288326770508726183777561118453794109594227164702014699484561535075988121077860437838569706668768479681557232438311914662395917635291631534286703306724803053762570652022253536294492563494550360310465604298213853779050217231120446204478726310219573350326978448988023263897438803477847875404081850959876869210673344646382500947987767365055222835794736377422486043629 . . . . . . . . . . . . . . . . . . . . [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) 0d31ac27bb6a7ca51b844fcbf0917a295c7bd96d . . . . . . . . . . . . . . . . [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.dfnco.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) 00f00076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f5c3fb5d00000040300473045022100b2bf11cef0f1959838387963d408f1436d3dc1c459fb309364bec35146f30e0102206d8ec96030c43c64195bf7e2a61cca077f09b613da660a888293003030eae268007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f5c3fb5c50000040300473045022100acef2e852d4a3e7a63d5b3a0a2145f76fe80c0708fcbba37fd6f66815d7913a002201057ca8f41c7426fcc0ae5b7f4485faf912d744125042b458d149870bc0cb56b . . . . [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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