cfuco.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:1d:ce:4d:89:2b:34:c3:49:fe:5e:c1:26:ab:fc:8c:81:7a 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): 03:1d:ce:4d:89:2b:34:c3:49:fe:5e:c1:26:ab:fc:8c:81:7aSerial Number (int): 271479269992091011230717946644549453250938
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: d2:d7:2c:73:66:f2:81:0d:0f:6f:db:bb:e9:00:b7:b8:8a:c3:b3:32
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 82:f4:bd:ea:bd:e5:43:94:1b:6f:79:60:af:62:c9:26:e3:fa:d1:88
Fingerprint (sha256): 00:68:71:19:bc:bb:a8:42:c7:6d:f5:fc:f4:5e:0a:a2:06:ba:57:76:89:97:4b:a8:30:8b:79:5a:e0:b9:d3:09
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----- MIIGSjCCBTKgAwIBAgISAx3OTYkrNMNJ/l7BJqv8jIF6MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEwMTMwOTU0NDBaFw0y MDAxMTEwOTU0NDBaMBQxEjAQBgNVBAMTCWNmdWNvLmNvbTCCAiIwDQYJKoZIhvcN AQEBBQADggIPADCCAgoCggIBAOJxTHdkFOB03OBTiGdr1zr4EJXluPgya1i8tt1T iSRmU/jyDJoyg99BcKAsAY9/XlHNgn5rZX5X3YM+HbzYln89FvS5j3lCrYpLDN3A Tdy1TbPaCnuANuLprJHgkb4Q8/TOejzOc5wXppryUBnTnIKtHu5jV7Gi/B/MyF1d yqjveL3ZNkkaUUN9DFzQK+7911GD6+GP8R7xDNpT3XWG0WuzWXeUfG8ytiDlg8QQ ZPQzHpuxj/z4pSLZPqEbVzASrYYT9QHzu/jQC4D2l47etyvjCqB3OiywnRrGVZz0 cocL41zXiM8DZLzv/Dh5Ruo8JNRrNMhbSoQvvj791hADIAAujq/nCJVXK71rY3NP sj7mYlwkpdc/o8bgd2ZPhHY1mHYifMgsMreQxSpcceQ6ufrCvZnxCzw9pMw/HHiB QE6q9Xal16RUBsX6uFVYrtREI0Q3Bi9tvEIyUAgZFSqXidOgcmV3SSJmjSdBm40N 4C4ZcvMxr6IaCSxPuEaZKJZoemzIkg6rMf8QBwD6MkajQnCXh4Hi7TL/TcQTKAOx zAk8dNk3jS1AP4KbaYL+CczWSCmlKWsLkea/5wl11imeOTjz3nQIz/ZljHmb4J3K cf4CHTaAbZdg1GC6ra8guDNCdat+Ag9lmOg9UmcrjeRazpq1J5mE7g054lcWNeYI IxKXAgMBAAGjggJeMIICWjAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYB BQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFNLXLHNm8oEN D2/bu+kAt7iKw7MyMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8G CCsGAQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxl dHNlbmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxl dHNlbmNyeXB0Lm9yZy8wFAYDVR0RBA0wC4IJY2Z1Y28uY29tMEwGA1UdIARFMEMw CAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9j cHMubGV0c2VuY3J5cHQub3JnMIIBBAYKKwYBBAHWeQIEAgSB9QSB8gDwAHcAb1N2 rDHwMRnYmQCkURX/dxUcEdkCwQApBo2yCJo32RMAAAFtxMGHmgAABAMASDBGAiEA 2Rz+j16ORipXsL5mMK5DtGvejxS2Nv8q60uq42iS1a4CIQDSn0CC7M0nqF2DIcQ0 xxYFpqOVLW1APD17+xtU0xRPkQB1ALIeBcyLos2KIE6HZvkruYolIGdr2vpw57JJ Uy3vi5BeAAABbcTBh3YAAAQDAEYwRAIgPW+6pJ7t1fA+MIrpEEHZMDN6fEeC2uqm gJMfEzxuoGkCIFs6A16QoWUaNXzsLr+27WsnrsHbjmRI/svWC2HxCiUMMA0GCSqG SIb3DQEBCwUAA4IBAQA4XFN/4Nh0xOis1EzxHFBb7405gd7qX+MqZLsppUr/DZ8/ z85sc4+NFa4G89RM4fHcUNILAza2F7a0cMpKH5S3AdIAXthpRBKkxdRVMSa6hQv5 CtJx7RPmuz4VydAbJCSiWuzBtrzjRVnboTtmQjQQZDIxxrqBsFTkEYt8s1Rju1A7 u4ZssqRGevy3MxXRefXGxlp8B8FnEPd1WMiX8C0cIl/WSplq90B0Oe/TayrPjJKi TRDDm/OxKOw2iNIPRPkUokNc/cSvMHLJoOJuvX0DV7nnIaB+JWFBOygPtfnOQC2u MMmGylESlP0SCaUMyf9HjLvhbde/R3wk/lHPvRFC -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA4nFMd2QU4HTc4FOIZ2vX OvgQleW4+DJrWLy23VOJJGZT+PIMmjKD30FwoCwBj39eUc2Cfmtlflfdgz4dvNiW fz0W9LmPeUKtiksM3cBN3LVNs9oKe4A24umskeCRvhDz9M56PM5znBemmvJQGdOc gq0e7mNXsaL8H8zIXV3KqO94vdk2SRpRQ30MXNAr7v3XUYPr4Y/xHvEM2lPddYbR a7NZd5R8bzK2IOWDxBBk9DMem7GP/PilItk+oRtXMBKthhP1AfO7+NALgPaXjt63 K+MKoHc6LLCdGsZVnPRyhwvjXNeIzwNkvO/8OHlG6jwk1Gs0yFtKhC++Pv3WEAMg AC6Or+cIlVcrvWtjc0+yPuZiXCSl1z+jxuB3Zk+EdjWYdiJ8yCwyt5DFKlxx5Dq5 +sK9mfELPD2kzD8ceIFATqr1dqXXpFQGxfq4VViu1EQjRDcGL228QjJQCBkVKpeJ 06ByZXdJImaNJ0GbjQ3gLhly8zGvohoJLE+4Rpkolmh6bMiSDqsx/xAHAPoyRqNC cJeHgeLtMv9NxBMoA7HMCTx02TeNLUA/gptpgv4JzNZIKaUpawuR5r/nCXXWKZ45 OPPedAjP9mWMeZvgncpx/gIdNoBtl2DUYLqtryC4M0J1q34CD2WY6D1SZyuN5FrO mrUnmYTuDTniVxY15ggjEpcCAwEAAQ== -----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 271479269992091011230717946644549453250938 . . . . . . . . [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 09:54:40 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-11 09:54:40 +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 923805099826284389961747207349188160683581612138322747719246556763192764524634983198243976194821014855789212866927791125076129186513611253976314466344421977792392323034331975110786613979503736232981609552094214031141978610877779948185726111293866745402905621926139104628508623040018785269361292214847617219311003314095356146448544428884996150713828352642268024715218314743164050111084897881176482340369438303933649323448550618782351507204024303617565915334378416723021545638524118472700290470666587993234657261140752166341173658010445194766307973340455841458047947928586415968267605078195105689639682023599370620837323079476505156613013696755139356110014730941848614990458787406136690510181008395742256618532329822622422838088542132855776031786981979992739251908287182027410172666007433450746526973580360177204268054996319443125035531290876343280751634818142943946934067933068279569169350715166505459271060071914296488912011311126316699682020381171215477001352256519156249206720733471395182334510822989156737006071305659715103533061965856994979135433571868880931610738939821420003034410004026804122270062727729598614591507782692942243403213580298069567254025452151381892751010868527806686027606547045166347438810420401239407800291991 . . . . . . . . . . . . . . . . . . . . [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) d2d72c7366f2810d0f6fdbbbe900b7b88ac3b332 . . . . . . . . . . . . . . . . [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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f00077006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016dc4c1879a0000040300483046022100d91cfe8f5e8e462a57b0be6630ae43b46bde8f14b636ff2aeb4baae36892d5ae022100d29f4082eccd27a85d8321c434c71605a6a3952d6d403c3d7bfb1b54d3144f91007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016dc4c18776000004030046304402203d6fbaa49eedd5f03e308ae91041d930337a7c4782daeaa680931f133c6ea06902205b3a035e90a1651a357cec2ebfb6ed6b27aec1db8e6448fecbd60b61f10a250c . . . . [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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