dfnco.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:6b:e4:17:d0:b0:bb:eb:fc:3d:aa:56:68:8a:00:17:73:24 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=dfnco.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:6b:e4:17:d0:b0:bb:eb:fc:3d:aa:56:68:8a:00:17:73:24Serial Number (int): 298050258694431375798146357461579506086692
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: ef:fc:a6:82:e4:bb:b5:f6:fc:ba:ad:ac:38:f1:86:b8:47:a4:fe:9e
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 77:ad:5d:cc:4a:2d:9f:74:b4:18:4f:85:2f:48:a7:30:69:49:47:9d
Fingerprint (sha256): db:d7:fc:1a:2b:1a:9a:1e:3a:45:74:47:9a:30:f3:b7:e4:0e:a2:eb:52:e6:6b:2e:ae:2f:4e:36:92:da:af:84
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate dfnco.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for 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
dfnco.com
Other certificates including the domain name dfnco.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for dfnco.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGSjCCBTKgAwIBAgISA2vkF9Cwu+v8PapWaIoAF3MkMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEyMjUxOTMxMTlaFw0y MDAzMjQxOTMxMTlaMBQxEjAQBgNVBAMTCWRmbmNvLmNvbTCCAiIwDQYJKoZIhvcN AQEBBQADggIPADCCAgoCggIBAMSUuNrBmLOMI7yqPnXbxNj3ydjrJfJXC6jC5Wn8 0drmayjBQ9lVvO3vRFVrLnP3iD2ppo6eeGbQokBCEguBOH614fkF+1wU8Ic2W2cp 5ZcxUljvZ3Aegj9x2vXFmE7p7qlowuLgfikKtBxxZWjhPYpVkblzLb8xBUTx8gNZ V1br+9ftIzCA5LNND3b5M4U9fJd7TNcae3d2qcHhAJi3snaSHWrOQOtkRd4jKKV4 Dyjh1rl6EAmg3eqfnmxZUzX6uGpM66s0UCq+DnAgxkxZCEx44MJpnQBg3POXfmpL 9INtpdr9MaD3RTy+SaW3+dp+GtFyzyqJQ92UI0OTeA3ylhX8UNJqtkC2fN0YlR0X MUAOhPa4lzqsB7HtBPmClT8RinA1hyAXmWeYn32aYRVCorGP2qllDFiXsH2R4JvL XQ3PFu7sml86svSLeV4mJF8wkjdE0ns3Ws2NDvTIAX+f9IULc8G9XgstbRAaCAl7 rawU+wu0hDyzq/Xu+fNW/CiOGMfsHfP8fsjV2VwZVT1x8NUrXWnpIGVBMM1eAEBI CXf9ovb172AgskWf/RPYNrXcLr3DtHLqODWkPIWqoM2Y7djNEOClYfh6b3ylfM5s kUX2K6QUYTHMXahXKSxURlAtTUVhQkJrMywkZkzfESvETP4rODVr77q564OERIDm DTvzAgMBAAGjggJeMIICWjAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYB BQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFO/8poLku7X2 /LqtrDjxhrhHpP6eMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8G CCsGAQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxl dHNlbmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxl dHNlbmNyeXB0Lm9yZy8wFAYDVR0RBA0wC4IJZGZuY28uY29tMEwGA1UdIARFMEMw CAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9j cHMubGV0c2VuY3J5cHQub3JnMIIBBAYKKwYBBAHWeQIEAgSB9QSB8gDwAHYAXqdz +d9WwOe1Nkh90EngMnqRmgyEoRIShBh1loFxRVgAAAFvPsG0GAAABAMARzBFAiEA 6ylJiJiYk5atqvOBxdYjSwWDGkKNzoQalmqAXmEyuLoCIELIqiyvGZpQDsCE6Cfa J5GVbOZl09gNz66bjBv5lnxXAHYAB7dcG+V9aP/xsMYdIxXHuuZXfFeUt2ruvGE6 GmnTohwAAAFvPsG0OgAABAMARzBFAiEAtaZmsReo2V4jHz+mYSRs2jhRg2l4/0lA w7ewPyeHWzQCIA5IjYj+k8DBilju8DvLuTT3tBrst1+ADOwQOhixHQHFMA0GCSqG SIb3DQEBCwUAA4IBAQB7JJYKmQK867ifqNkk35Kk/5lDbQ4Gf2eWTROMA28+Fj7G o77sl1vcvvvTblLZw6Scq7SmZKV97czdQKGH6oLUATD9RSFBQ+VatPvch4HkakKd n7NPm1+5VMOQHYJEpI8IaJlhLHBpBLHTJLUal+e7H8FblT01OrR2ZRPdwR3so0CK pTUjVsqSvdjde1n32yMitgpW123NvUyEC30bqomvindVozQxKFIB40ld5RDY8Rcn PITNaR5JV38NL56Y9jKl8s2rLcT8W3yVlpTcxaGbUWMTCE5+zyI0yzcmPFDc8+zq JHdTkIrcZTVlBDGVDLPG49tnpJB4bw3kmnKaWkJG -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAxJS42sGYs4wjvKo+ddvE 2PfJ2Osl8lcLqMLlafzR2uZrKMFD2VW87e9EVWsuc/eIPammjp54ZtCiQEISC4E4 frXh+QX7XBTwhzZbZynllzFSWO9ncB6CP3Ha9cWYTunuqWjC4uB+KQq0HHFlaOE9 ilWRuXMtvzEFRPHyA1lXVuv71+0jMIDks00PdvkzhT18l3tM1xp7d3apweEAmLey dpIdas5A62RF3iMopXgPKOHWuXoQCaDd6p+ebFlTNfq4akzrqzRQKr4OcCDGTFkI THjgwmmdAGDc85d+akv0g22l2v0xoPdFPL5Jpbf52n4a0XLPKolD3ZQjQ5N4DfKW FfxQ0mq2QLZ83RiVHRcxQA6E9riXOqwHse0E+YKVPxGKcDWHIBeZZ5iffZphFUKi sY/aqWUMWJewfZHgm8tdDc8W7uyaXzqy9It5XiYkXzCSN0TSezdazY0O9MgBf5/0 hQtzwb1eCy1tEBoICXutrBT7C7SEPLOr9e7581b8KI4Yx+wd8/x+yNXZXBlVPXHw 1StdaekgZUEwzV4AQEgJd/2i9vXvYCCyRZ/9E9g2tdwuvcO0cuo4NaQ8haqgzZjt 2M0Q4KVh+HpvfKV8zmyRRfYrpBRhMcxdqFcpLFRGUC1NRWFCQmszLCRmTN8RK8RM /is4NWvvurnrg4REgOYNO/MCAwEAAQ== -----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 298050258694431375798146357461579506086692 . . . . . . . . [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 2019-12-25 19:31:19 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-24 19:31:19 +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 '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 801980288831594368288151449525254682597003608368924712327268959738915328701782720587025152508376744170083878664198300922370974834004967560889078200837529997784017534480364162303974983038383914258908386723723969838042553650231994299541902348997097386045152004483615978789688483731493676842797948062615912947187103606178122130394577248516238256524174990334827063129534226208377413292523161793311066466976401765016302518156445685370601514895403194830413508534419695909557389368947294965606893537977456057534720131844471322600205932621028506992663392407787654734162062473660719040076054664052418039641125808015519443623453441038083122674276206194176806501305766846953093271221833426953721304629081513357469879722478058504800092880607957349393188784533956815736125874474642440355660597507701596582183547290741251644477083961835868868058483058864919593137330262774761801031688526962615743220100114725507380001744048036912772996390672622512037983062357983562736811440189145684587107523659099420571207149258054840766344119650710737559649274371773734717310290917375519549195011058366952666164213034166436022780564655079637979891220532475028097456249493547496617651973670435723704039669971394022488633711516357966285395228366468937689619839987 . . . . . . . . . . . . . . . . . . . . [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) effca682e4bbb5f6fcbaadac38f186b847a4fe9e . . . . . . . . . . . . . . . . [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 '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) 00f00076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f3ec1b4180000040300473045022100eb29498898989396adaaf381c5d6234b05831a428dce841a966a805e6132b8ba022042c8aa2caf199a500ec084e827da2791956ce665d3d80dcfae9b8c1bf9967c5700760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f3ec1b43a0000040300473045022100b5a666b117a8d95e231f3fa661246cda3851836978ff4940c3b7b03f27875b3402200e488d88fe93c0c18a58eef03bcbb934f7b41aecb75f800cec103a18b11d01c5 . . . . [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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