dfuco.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:17:b2:f6:45:42:dd:a2:93:3b:a4:dd:d4:1e:9b:92:de:69 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=dfuco.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:17:b2:f6:45:42:dd:a2:93:3b:a4:dd:d4:1e:9b:92:de:69
Serial Number (int): 269401233527523153298850921767810970607209
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 64:9a:f4:7f:15:ca:45:03:19:c0:44:2b:2f:7e:14:ed:b1:2b:cf:e5
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 19:7c:4e:79:3e:56:f0:e6:35:b5:1c:52:ef:30:75:a0:db:2e:f3:9d
Fingerprint (sha256): 31:92:dd:be:87:78:89:79:54:07:87:b1:29:5f:6a:23:47:ed:f8:aa:ac:bb:bc:8f:66:44:e0:66:08:94:56:a6

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 dfuco.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for dfuco.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

dfuco.com

Other certificates including the domain name dfuco.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for dfuco.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 269401233527523153298850921767810970607209
 . . . . . . . . [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 2020-01-01 17:30:56 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-31 17:30:56 +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 'dfuco.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 868335560931118454151068966330393313312230310173378006086097557762026754526332927635116038284627948512695650740454250139902374127414954864310045583829919830105310859567989345869485987704363270228843100489762288390993390036201226924010926022270182269392631240883413873724348531066566308244080741750955746962375590149813254448185703670929277500313240892201339039048901211670088639410260955763900420936560945701359805451441792025332973834529574376208966402722413681255801978561032935234467812920299171210245664174141825315583112158365003178903765852553508185553473067768605310783375474669561600791258648723227983589391482937010824294767562609502154542880585687366368931223244276118749297595942119484448022718009965174951323284055069278696719355567039402033493305353121865338453905958018836928786507133454821361952583816954059785503730002674390129543373902716651553478908414772484054478505754068303335962552409124251358577648260105600363964309187243442406255072173743021448428323231629901454531680107518538536775252706158524080483601044496809783100822924556074531735407272221239566704562451156122911404912113020801745740241376714222234497278262802696589590667620772675165391926940791491406447466554265729010784104885320011982232287096541
 . . . . . . . . . . . . . . . . . . . . [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)
							649af47f15ca450319c0442b2f7e14edb12bcfe5
 . . . . . . . . . . . . . . . . [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 'dfuco.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)
							00ef00750007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f626000b30000040300463044022002b3d911d09e4b398c3f0675f8dd4b3e2b562d85767cf69e5db1af7f908cfed602202e1591c4460f71e4346fbcb2d6cd1410cfa6ade15b67018969203ab1297c18ea007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016f6260027f000004030047304502200a65d046d4a88f8605a50cbd6f8f5a10a846d764c0b8caa3033d9e26a4d2d712022100861b048293636a52ea5e8abd295bd8ef6021780318d826f9a5806c27d2151d80
 . . . . [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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