www.cfuco.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:ed:f8:ae:5a:51:bb:b8:b7:44:56:d7:6c:bf:87:8f:b8:cb 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.cfuco.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:ed:f8:ae:5a:51:bb:b8:b7:44:56:d7:6c:bf:87:8f:b8:cbSerial Number (int): 342314332590043642474125841598121665083595
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 99:66:f6:e0:33:d9:30:99:a9:ba:1a:ba:25:31:84:1d:03:5d:aa:14
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 60:48:11:84:2e:33:4d:43:b2:ef:99:7d:94:c5:bf:d9:a1:fe:73:b9
Fingerprint (sha256): a9:3b:20:7b:1f:74:7f:0f:37:96:61:69:bd:62:7a:e0:8f:be:f4:56:61:9d:ee:8d:34:72:f0:64:ef:44:98:ca
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.cfuco.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.cfuco.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.cfuco.com
Other certificates including the domain name cfuco.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.cfuco.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGUTCCBTmgAwIBAgISA+34rlpRu7i3RFbXbL+Hj7jLMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEwMTIyMDEzMzhaFw0y MDAxMTAyMDEzMzhaMBgxFjAUBgNVBAMTDXd3dy5jZnVjby5jb20wggIiMA0GCSqG SIb3DQEBAQUAA4ICDwAwggIKAoICAQDEP+zTsCzJEqOZYv/X+sBkevASUk2bAXDc cuTHY21Y7LPikTa5nt2ZnKQi05JjozvCuXtNym4HA6kv8OIlcJtj+CE5zACNpW3N QA/B5PaUzHOq/CeBPmzT7x/gQGZIuYETPRmFzMcXkgVjFDmRp7nIlYT9BEfijxlp RqWeaVL3BbaIwNSvh4mLWhiV+dox5aQ+q2kWkTn4E38U4zhrp1Er+9nZy+W7RsR6 cID0L+s5ZjY4FdL/mGqZxMiVzh5Jy51q2jDIhZTJWD7n27qu6FlXKPz3EP2603jK hZSwBq8yrpvIj3uSQ1MM6cAvzE+eTQY3CSl1s1IVugAjSnV8rqabj1ZtqJyIjKht AHwlawAdzi67vL6sSDw+yxtPI5l0NEn0PB0wSOOeoVxY39gVPgs8akztJe59M/6C zyt2zkugaZWL+Ic2wLaJIf3655tQNbGIfoaLO0gcYXg/38FTd+7Yjbte7yTQn6do JcWbYE24n707WMxECFx+Zo+n/OVbAfZLbYW8GnmQv8iNPuiY3vC0Ixl7omrXkylr CJNP6nyGzOOvO9goiGDVW1oklcUzJbE5/TbFvg3WIcbT9c9IruKjiiCjzNnh+Q8N 9Qp1h2d2UJDgJiKZQDcdKMYzkpbxASmylyA6ww+IDB6bxNp7n6kGsvspFkTHIzc3 AxgGgxYOOwIDAQABo4ICYTCCAl0wDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQG CCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBSZZvbg M9kwmam6GrolMYQdA12qFDAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86js oTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14 My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14 My5sZXRzZW5jcnlwdC5vcmcvMBgGA1UdEQQRMA+CDXd3dy5jZnVjby5jb20wTAYD VR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYa aHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEDBgorBgEEAdZ5AgQCBIH0BIHx AO8AdgBep3P531bA57U2SH3QSeAyepGaDIShEhKEGHWWgXFFWAAAAW3B0dsmAAAE AwBHMEUCIFfLg4g9oFdwCSa+wDKV1NLxDNIhScS/5mYRxJMa6TEKAiEA5EVJaYH6 GMVmLBlU0Ae0Qek+iOxPlI5ifda5eFLV8usAdQApPFGWVMg5ZbqqUPxYB9S3b79Y eily3KTDDPTlRUf0eAAAAW3B0dsYAAAEAwBGMEQCICIWryujRuZayvREZKz248kh HK+2K4HlxsdMBDfCRwQBAiB7k7Cm2K9mzp+peAGWom86pcxeMKTWbvD1Jbc1fawL wzANBgkqhkiG9w0BAQsFAAOCAQEAEQxCWmFemKqvUFxQSjItrfKt0Pwxs1I0o4Vg ErLWyHPWHWf4uOB0l8vWx5jblnrLQUC+KUtFizOW1UxPqK5eO7cQuhvHZ/fSyOZG sqpk2nMPyuqYSmDHrTfDda0Uvyt8s8+JFe5USY6ZaZnPDF2BuysXRP7N15twblsg 7GQqnct3CrCM5zq6RtvGJgnpyIQUUShfmPaaAPlzBiEm0oJGRhEU/bHYA6XeDdwy QlZAvmwCX0V1+JeyozGSOB2J/0N1OmrMollfDfQ6akKH+NJFGc9eCh0spYkuYVAK y6puCCmVOpgBpw56L+gO9DdlN0vT5ftmpynF6KX329d75fhHSw== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAxD/s07AsyRKjmWL/1/rA ZHrwElJNmwFw3HLkx2NtWOyz4pE2uZ7dmZykItOSY6M7wrl7TcpuBwOpL/DiJXCb Y/ghOcwAjaVtzUAPweT2lMxzqvwngT5s0+8f4EBmSLmBEz0ZhczHF5IFYxQ5kae5 yJWE/QRH4o8ZaUalnmlS9wW2iMDUr4eJi1oYlfnaMeWkPqtpFpE5+BN/FOM4a6dR K/vZ2cvlu0bEenCA9C/rOWY2OBXS/5hqmcTIlc4eScudatowyIWUyVg+59u6ruhZ Vyj89xD9utN4yoWUsAavMq6byI97kkNTDOnAL8xPnk0GNwkpdbNSFboAI0p1fK6m m49WbaiciIyobQB8JWsAHc4uu7y+rEg8PssbTyOZdDRJ9DwdMEjjnqFcWN/YFT4L PGpM7SXufTP+gs8rds5LoGmVi/iHNsC2iSH9+uebUDWxiH6GiztIHGF4P9/BU3fu 2I27Xu8k0J+naCXFm2BNuJ+9O1jMRAhcfmaPp/zlWwH2S22FvBp5kL/IjT7omN7w tCMZe6Jq15MpawiTT+p8hszjrzvYKIhg1VtaJJXFMyWxOf02xb4N1iHG0/XPSK7i o4ogo8zZ4fkPDfUKdYdndlCQ4CYimUA3HSjGM5KW8QEpspcgOsMPiAwem8Tae5+p BrL7KRZExyM3NwMYBoMWDjsCAwEAAQ== -----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 342314332590043642474125841598121665083595 . . . . . . . . [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 2019-10-12 20:13:38 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-10 20:13:38 +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.cfuco.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 800628954815697042613507025776556153898948428089908720177067250257002979932592563835700635807794658224722605402891720900810381865483493043841509584948546931577076256904444278298199475991670589505279386930964138806543356047871859625668370070073877963821103820385477877429687172537725906203258895331260596763539829039797917606327997136953387528425471443935597628927939565690656285967415448566622426364774150271002778352849766804868923266588751081802266000677716188199862389447433864078336214918812807776411604774964563550516852645577479736838914050020643087417148326437814001047421655299534895285793572744469244732613542416811928415725994560600215388125563006953283571834133936208311723967797735452892320492429779735640625307944740833411009202379820635993080565188113001468639175474301328861379995632320848840939586620261578123328020794857944382728380892309030112713371542130091670415942292143660222827695029670094743425270594291243720814138268122621904838924328818333702219420443048391363909632665651303727135711593515621213491230806388782849010435980196462599579533111478593536328715979660260791098626235554684919924292757835617867478303683531211987848755322266649705526673242837811591158488784978264628961380215309522297214391946811 . . . . . . . . . . . . . . . . . . . . [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) 9966f6e033d93099a9ba1aba2531841d035daa14 . . . . . . . . . . . . . . . . [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.cfuco.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) 00ef0076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016dc1d1db260000040300473045022057cb83883da057700926bec03295d4d2f10cd22149c4bfe66611c4931ae9310a022100e445496981fa18c5662c1954d007b441e93e88ec4f948e627dd6b97852d5f2eb007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016dc1d1db18000004030046304402202216af2ba346e65acaf44464acf6e3c9211cafb62b81e5c6c74c0437c247040102207b93b0a6d8af66ce9fa9780196a26f3aa5cc5e30a4d66ef0f525b7357dac0bc3 . . . . [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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