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:cb
Serial 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.org

Check 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-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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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