dfnco.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:6b:e4:17:d0:b0:bb:eb:fc:3d:aa:56:68:8a:00:17:73:24 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=dfnco.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:6b:e4:17:d0:b0:bb:eb:fc:3d:aa:56:68:8a:00:17:73:24
Serial Number (int): 298050258694431375798146357461579506086692
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ef:fc:a6:82:e4:bb:b5:f6:fc:ba:ad:ac:38:f1:86:b8:47:a4:fe:9e
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 77:ad:5d:cc:4a:2d:9f:74:b4:18:4f:85:2f:48:a7:30:69:49:47:9d
Fingerprint (sha256): db:d7:fc:1a:2b:1a:9a:1e:3a:45:74:47:9a:30:f3:b7:e4:0e:a2:eb:52:e6:6b:2e:ae:2f:4e:36:92:da:af:84

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 dfnco.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for dfnco.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

dfnco.com

Other certificates including the domain name dfnco.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for dfnco.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 298050258694431375798146357461579506086692
 . . . . . . . . [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 19:31:19 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-24 19:31:19 +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 'dfnco.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 801980288831594368288151449525254682597003608368924712327268959738915328701782720587025152508376744170083878664198300922370974834004967560889078200837529997784017534480364162303974983038383914258908386723723969838042553650231994299541902348997097386045152004483615978789688483731493676842797948062615912947187103606178122130394577248516238256524174990334827063129534226208377413292523161793311066466976401765016302518156445685370601514895403194830413508534419695909557389368947294965606893537977456057534720131844471322600205932621028506992663392407787654734162062473660719040076054664052418039641125808015519443623453441038083122674276206194176806501305766846953093271221833426953721304629081513357469879722478058504800092880607957349393188784533956815736125874474642440355660597507701596582183547290741251644477083961835868868058483058864919593137330262774761801031688526962615743220100114725507380001744048036912772996390672622512037983062357983562736811440189145684587107523659099420571207149258054840766344119650710737559649274371773734717310290917375519549195011058366952666164213034166436022780564655079637979891220532475028097456249493547496617651973670435723704039669971394022488633711516357966285395228366468937689619839987
 . . . . . . . . . . . . . . . . . . . . [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)
							effca682e4bbb5f6fcbaadac38f186b847a4fe9e
 . . . . . . . . . . . . . . . . [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 'dfnco.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)
							00f00076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f3ec1b4180000040300473045022100eb29498898989396adaaf381c5d6234b05831a428dce841a966a805e6132b8ba022042c8aa2caf199a500ec084e827da2791956ce665d3d80dcfae9b8c1bf9967c5700760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f3ec1b43a0000040300473045022100b5a666b117a8d95e231f3fa661246cda3851836978ff4940c3b7b03f27875b3402200e488d88fe93c0c18a58eef03bcbb934f7b41aecb75f800cec103a18b11d01c5
 . . . . [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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