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:a8:63:6a
Serial 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.org

Check 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-----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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 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)
		0081e04253c3fadd0b0eeb253eda369661508c75e34c940b8a004eb7761c36e5f5afcc72b03f2a4d4a479dc2275497f8608c6e8073530210a01c135b9940ba55676e91258618ea4d35f4592f189ccff5275c1709512eb1647d135271cd67a84ab9651940d31fb01d42fd6b86fcb1e3a2b29657ff9d26828a358d582358308a8e37bd43ceefdc24462aa18be66afdfca2bc10413d70da90e8d5e7f0763cd5ac2b4765608c550f69d73fe8b26c5f81df145a7d42af9faf749a1211b175e05dcfdf3f6b6e236302146755427a8561c72e8fe311b7ce68d097c27377af6e3a2319a19b854f1336531c68773db5b430ca8b67a8da71e31fed6add648b0fb5dd435e9668