dfnco.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:b9:64:42:dc:8c:c3:8c:c2:ed:09:50:fc:53:74:be:fc:a0 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:b9:64:42:dc:8c:c3:8c:c2:ed:09:50:fc:53:74:be:fc:a0
Serial Number (int): 324422365640108085868915920805198280195232
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: df:4d:b6:e5:ab:98:e8:6d:9a:3b:4d:11:09:98:c7:29:88:09:b5:5e
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): c3:92:18:21:a4:d1:ca:e3:06:8d:8f:93:9c:79:47:ad:96:79:25:f1
Fingerprint (sha256): 99:c8:3c:c4:4b:75:1b:44:d5:49:a0:36:eb:ba:2e:c0:36:97:e7:7a:88:1f:11:d0:9d:23:7d:58:60:87:2a:51

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-----
MIIGSDCCBTCgAwIBAgISA7lkQtyMw4zC7QlQ/FN0vvygMA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEwMTMxMDIyMTNaFw0y
MDAxMTExMDIyMTNaMBQxEjAQBgNVBAMTCWRmbmNvLmNvbTCCAiIwDQYJKoZIhvcN
AQEBBQADggIPADCCAgoCggIBAOFnRXMY7pwOtcDcFcw+vee9rykNaPMYrciRIbCe
poTkC0OMZHvWV1ADwPLR3d3BxxbgBdwZ/Noxh03SBpdChT5LGADddy1BkYQyab1D
ceFzAiI918hzRxb9CSWb9dF0Mu0gNCb+Z8Sh42W+j56xFenNBTfWiqZzC2h5m0YV
E+AeJTIh1IhYm4Iz7z9kFtDbx2KllYzozqJP+9RODkm53QeXHbqf5x1WqJvm9t3u
Sw/JS67zUzIo9lpDfHQAD/opavSwML+kMiBsc5aeQ+Kxld2LtuADLzXNLSe8vtgB
SKHgt7rgjYg9Sj22TxJqYZRMl3AoxoSBUqKEjoyykHXovrf357F4zE6LDErg/oH5
k7PL7p/znsCTNKrwNIuPoMxnXFcUiJg4ZhbriddkrjG4vB1P+J95moJqUz9Ph+8F
kaK39xeUFITe9GGrtwMMuJ9CSQLOUgGLa28YJwSXBjMwLh1XkDKFuuUF0Wvo+RjK
f6XEOQ993+iKe+6ZxbiMyZkii74RrpHtpnjBwT1DPUslh14vE3W8/BopHSJjV+mK
gJgZmgJ6L5o+mTh8PGTh1kXLgqymt/RRKp0CyQ2YnG3tomYhIEC0W7laL7oCQIja
T3oFkDLcgMFIAV80CSI1fURuKB5+GP88NeLlKVGcJHtBnx3hWTf/1zpY09YikvU1
uQe9AgMBAAGjggJcMIICWDAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYB
BQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFN9NtuWrmOht
mjtNEQmYxymICbVeMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8G
CCsGAQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxl
dHNlbmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxl
dHNlbmNyeXB0Lm9yZy8wFAYDVR0RBA0wC4IJZGZuY28uY29tMEwGA1UdIARFMEMw
CAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9j
cHMubGV0c2VuY3J5cHQub3JnMIIBAgYKKwYBBAHWeQIEAgSB8wSB8ADuAHUAXqdz
+d9WwOe1Nkh90EngMnqRmgyEoRIShBh1loFxRVgAAAFtxNrCRwAABAMARjBEAiB5
zLKQXYADc6natC3ITHLA/sky9bGNYaaM+VSH7Z8Z+QIgNliwQaculxRel3Nu+B1u
JcHCN9S1n0+YcuqlzBrRh24AdQApPFGWVMg5ZbqqUPxYB9S3b79Yeily3KTDDPTl
RUf0eAAAAW3E2sJDAAAEAwBGMEQCIBW0FreOa00zOdIBz2sRextyhsegrSM5+nrJ
EXIdDR3YAiB1iAs9ljNVAr/3G0mKU0bPRuP+DKd7XYHkHdYKyC0a8zANBgkqhkiG
9w0BAQsFAAOCAQEADrc5f2LL4Qgw6L4eYPh6Fk0EQWwkOWxhWT4zzRA1nNiGXN6M
pvjrUpyhdIje3A3LUjOQiJJGu0VagEMcq/jY06QiIL1T7rMV8ZLULjH69zENtwEX
VBmYMAmKvZ3ODdjj2/BvXuyLt70kfkmXy6GDY0SmjaYZNNF8zO4MXyNKalBgzSTj
7TQdcSR87MUykrrKBmCU7R+bT5uMzorPQufCrZgxEwJGRy3o/Ztt4ogTFuU5TuN0
ZkpehFG9rzZllLtnlm2JOCgMtAgnQepiZ406/llQ+vumMG4qTJdwyr8xHizvSlwu
/SrQ2r6HDXFLBdQ3+3aO+oOv28YNXgd+iPM+rw==
-----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 324422365640108085868915920805198280195232
 . . . . . . . . [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 10:22:13 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-11 10:22:13 +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 919565657864814348157861343124801295704669084338902658421247777339160906551083679132187662710000875451119953900236695941203853445911576472094762542350877796633441513355346730633173244295809989267222545326234523061067277232084913627897758132126978207449257836545636397672035996091325551181746860430374892903613122978170821913142032505430480568967447501771986902158007103733198515476294135856412698685377735203774395949799038520636789957998261652632675316899936721416510994700547740793010869674325689803897325306195666623944642215933508470450974914339837415638180025254618957334552778989763261392172406986762363397481099303932607377696207824110100326729729881689100871576845732249330577957405308274131099916239349264805059189553677993496145280171187807137204389318270393059698761059237389731710293031905856487300984438165013006938576229747718739446404999321110797053536752821591977672058821340776671755006181175607618288541078528782779955780115552607188442745161081482052841250763211752554503756080411097084758179304897971842823724558106568493555710658526300277611919877510710248594435770545050987688188971145207592800158814723835140117507158667869609961946064913932095266156216258501284193945350326594651141362985241102516990345021373
 . . . . . . . . . . . . . . . . . . . . [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)
							df4db6e5ab98e86d9a3b4d110998c7298809b55e
 . . . . . . . . . . . . . . . . [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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee0075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016dc4dac2470000040300463044022079ccb2905d800373a9dab42dc84c72c0fec932f5b18d61a68cf95487ed9f19f902203658b041a72e97145e97736ef81d6e25c1c237d4b59f4f9872eaa5cc1ad1876e007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016dc4dac2430000040300463044022015b416b78e6b4d3339d201cf6b117b1b7286c7a0ad2339fa7ac911721d0d1dd8022075880b3d96335502bff71b498a5346cf46e3fe0ca77b5d81e41dd60ac82d1af3
 . . . . [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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