cfuco.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:85:3f:f4:ba:58:75:1c:90:fe:22:9b:e8:ed:52:a8:63:6a 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=cfuco.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:85:3f:f4:ba:58:75:1c:90:fe:22:9b:e8:ed:52:a8:63:6aSerial Number (int): 306679424659469996639681570097879256163178
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 13:6f:90:7c:54:62:0e:ea:fe:a4:29:fd:21:32:1b:79:88:45:dc:79
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 40:48:1f:b0:8e:30:58:e5:2c:09:5c:19:7c:cb:00:e2:2b:1c:5f:38
Fingerprint (sha256): b6:a2:c6:dd:79:03:53:2c:4e:d1:91:2c:fc:e2:0e:a0:41:17:c9:51:b3:7a:01:18:b5:47:65:f0:20:d4:f2:70
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate cfuco.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for 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
cfuco.com
Other certificates including the domain name cfuco.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for cfuco.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGSTCCBTGgAwIBAgISA4U/9LpYdRyQ/iKb6O1SqGNqMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEyMjUxOTI3NDJaFw0y MDAzMjQxOTI3NDJaMBQxEjAQBgNVBAMTCWNmdWNvLmNvbTCCAiIwDQYJKoZIhvcN AQEBBQADggIPADCCAgoCggIBANNxmeihWgKTP73SSmnlP/zhe54lTVm15+VaNBmD FsiunwdMkG2LEG0I7BLMKUJxIaR357WM8gwDPMLPp/d8Vj0OhFEKQ6HzZBdTp0Wr V3dBM/k+FYMyVP+jIEgFaFFwDBZ5e0bPTLwtplZ/2PjXphGpQbNYzcInw5+Yf4+T B95Q1FdcpBkiXs30wMQQffKX/hEPByxwHv3pl1kMwt/CDIyRIqPazu2KHjoOWcRc 8K9ZzIUkp9SkFoqZ7i3Fij0fk1IF18aW03T3aU1qe66Zb7oqr4DJAujQfotXnx0n t/EuJxRB3FwjCq0M1IoJlG2RG35q4+USNZry7LzKwSCAA+aH3SvfC/lsMtyPicAv QY9pLVzPXRthPxLSnor7HdM+GxjSQgyPAc/HS5MmeSid3cSNzRXx5F60Q91LXCit uj6rytDsl94Yxp2CxO7+FHH5D7edBHSnjMkYZwoMGwmqllOw4TVb8g8hqEEoSsmo +AkS7TXRBGRnXKphciJ9r11nc6XgHUyxL39vjpGt5Yoyq3cdFLOeDt/zZvcUI0GO 644vQ39B7mmW2gGotCJEXjSBxp/LRHMJZZD2rEAPlqMBEstqLCPjYB3IFP9/61Vs d0Qnl9DQKX3Mgg3C246d7tuj4RYmlIIAR1hdnLE/hLCu/LdJgbr4meuPKNgWSJDa DZIpAgMBAAGjggJdMIICWTAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYB BQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFBNvkHxUYg7q /qQp/SEyG3mIRdx5MB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8G CCsGAQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxl dHNlbmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxl dHNlbmNyeXB0Lm9yZy8wFAYDVR0RBA0wC4IJY2Z1Y28uY29tMEwGA1UdIARFMEMw CAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9j cHMubGV0c2VuY3J5cHQub3JnMIIBAwYKKwYBBAHWeQIEAgSB9ASB8QDvAHYAXqdz +d9WwOe1Nkh90EngMnqRmgyEoRIShBh1loFxRVgAAAFvPr5kmgAABAMARzBFAiA0 vcs8zfzCgUJiJ9Shu+DEp/5D5VJKJrlv2fvx36ZOggIhAJQOB6JPdnl5Pad7Nq40 hsfSfUIXztfZ/Bw3rQ0/kGt1AHUAsh4FzIuizYogTodm+Su5iiUgZ2va+nDnsklT Le+LkF4AAAFvPr5kiAAABAMARjBEAiBKTLwF363hiqpzqDtxHcOwRariiJKqpiYm Q4LoLavYPgIgNCf61qQUKo9mvjrNBGD5UvUorfLNfhpithsDq4AwQg0wDQYJKoZI hvcNAQELBQADggEBAIHgQlPD+t0LDuslPto2lmFQjHXjTJQLigBOt3YcNuX1r8xy sD8qTUpHncInVJf4YIxugHNTAhCgHBNbmUC6VWdukSWGGOpNNfRZLxicz/UnXBcJ US6xZH0TUnHNZ6hKuWUZQNMfsB1C/WuG/LHjorKWV/+dJoKKNY1YI1gwio43vUPO 79wkRiqhi+Zq/fyivBBBPXDakOjV5/B2PNWsK0dlYIxVD2nXP+iybF+B3xRafUKv n690mhIRsXXgXc/fP2tuI2MCFGdVQnqFYccuj+MRt85o0JfCc3evbjojGaGbhU8T NlMcaHc9tbQwyotnqNpx4x/tat1kiw+13UNelmg= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA03GZ6KFaApM/vdJKaeU/ /OF7niVNWbXn5Vo0GYMWyK6fB0yQbYsQbQjsEswpQnEhpHfntYzyDAM8ws+n93xW PQ6EUQpDofNkF1OnRatXd0Ez+T4VgzJU/6MgSAVoUXAMFnl7Rs9MvC2mVn/Y+Nem EalBs1jNwifDn5h/j5MH3lDUV1ykGSJezfTAxBB98pf+EQ8HLHAe/emXWQzC38IM jJEio9rO7YoeOg5ZxFzwr1nMhSSn1KQWipnuLcWKPR+TUgXXxpbTdPdpTWp7rplv uiqvgMkC6NB+i1efHSe38S4nFEHcXCMKrQzUigmUbZEbfmrj5RI1mvLsvMrBIIAD 5ofdK98L+Wwy3I+JwC9Bj2ktXM9dG2E/EtKeivsd0z4bGNJCDI8Bz8dLkyZ5KJ3d xI3NFfHkXrRD3UtcKK26PqvK0OyX3hjGnYLE7v4UcfkPt50EdKeMyRhnCgwbCaqW U7DhNVvyDyGoQShKyaj4CRLtNdEEZGdcqmFyIn2vXWdzpeAdTLEvf2+Oka3lijKr dx0Us54O3/Nm9xQjQY7rji9Df0HuaZbaAai0IkReNIHGn8tEcwllkPasQA+WowES y2osI+NgHcgU/3/rVWx3RCeX0NApfcyCDcLbjp3u26PhFiaUggBHWF2csT+EsK78 t0mBuviZ648o2BZIkNoNkikCAwEAAQ== -----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 306679424659469996639681570097879256163178 . . . . . . . . [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 19:27:42 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-24 19:27:42 +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 '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 862615259624886811422580885447817962234159585763675824265485968854274198400221733215628957497278159015319611255648523207354390721338209977277582827966956017030636499425193246638356225407987605455977405281184389267983917887079642815324074304436455677180025457867478873493398904102020423240225364138890163614736910849883718594429592866323423162930729658351413855263962064869585846256078836109233446595241341015578745178597831526622061690706687933393672559703557051025251165335813909973139363666530157473241482556279052378145242717759992658406911696217432295887593125738897743788786373638948233416613135862897244440744254810494919426386337243855415141717907032465364966910673971387692956565150312120783110608365836458653907589134119223760558136687271951461699009452453400858179739527317672021927221925344721194293083139979516047035733041762727217385184475132618072475700335555451378448634616160905830787089062601493475415994969534534719284751713358657228353174577305322836399094487408520612392898196475936520709187341855992793329776935414438809296331578118533203629826368377415993395968828976459535161489759825006022783390610591158547383231614569251577064740446725977533392673762504050846172242896003830188829260194242282588318607446569 . . . . . . . . . . . . . . . . . . . . [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) 136f907c54620eeafea429fd21321b798845dc79 . . . . . . . . . . . . . . . . [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 '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) 00ef0076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f3ebe649a0000040300473045022034bdcb3ccdfcc281426227d4a1bbe0c4a7fe43e5524a26b96fd9fbf1dfa64e82022100940e07a24f7679793da77b36ae3486c7d27d4217ced7d9fc1c37ad0d3f906b75007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f3ebe6488000004030046304402204a4cbc05dfade18aaa73a83b711dc3b045aae28892aaa626264382e82dabd83e02203427fad6a4142a8f66be3acd0460f952f528adf2cd7e1a62b61b03ab8030420d . . . . [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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