tkkf.com

Issued by R3

About this certificate

This digital certificate with serial number 03:6b:d0:5e:9e:5c:c1:0d:2a:01:c7:ed:69:bb:bd:08:94:19 was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=tkkf.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 03:6b:d0:5e:9e:5c:c1:0d:2a:01:c7:ed:69:bb:bd:08:94:19
Serial Number (int): 298024041766818575155393521180342231798809
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 13:8c:03:35:3d:50:c9:a1:44:dc:23:8d:23:85:ea:26:4a:8d:a0:52
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 45:73:8e:3d:31:d6:5d:57:3d:80:92:2c:2e:66:5a:15:f5:8d:bc:b1
Fingerprint (sha256): 1f:ea:33:81:4f:b1:8f:4d:99:b5:40:11:ed:f1:c8:98:c0:92:43:c8:2b:b7:33:b5:78:81:dd:84:e4:84:9f:6e

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate tkkf.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for tkkf.com

Public Key Algorithm

RSA

Key Size

2048

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

*.tkkf.com
tkkf.com

Other certificates including the domain name tkkf.com

(limited to 100 certificates)
tkkf.com
tkkf.com
tkkf.com
tkkf.com
tkkf.com
tkkf.com
tkkf.com
tkkf.com
tkkf.com
tkkf.com
tkkf.com
tkkf.com
tkkf.com
tkkf.com
tkkf.com
tkkf.com
tkkf.com

Certificate

The complete raw certificate details for tkkf.com in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIE6TCCA9GgAwIBAgISA2vQXp5cwQ0qAcftabu9CJQZMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yNDA1MTIxNDA3NDFaFw0yNDA4MTAxNDA3NDBaMBMxETAPBgNVBAMT
CHRra2YuY29tMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxZByRBev
qz52qQWXucbqWIsjZWgSDSA7yNga3lqU7qVzQIl3BvO3UzfUH+up+eKItmWObYJx
MenTTYnyvqZplyMNzLnMdn8jssF9YaZoNBp+aXb/DndTcd4yjxkQgbJBT+R06OZt
4c4KgUlsxbleWi10osdkJp6FCrvFoWDx4WZpa7Ld3SKGqET1jx4u1A6YaTNhODeW
XS7bsZdH+vIB2GynuUlMLBDsyhOexu9zAA3GxTXzRJ6ti9OLAZxyMkR/FHz4g0mG
dF2LUUUhz/948LaCU37ncyzPc3g18E1ni95nMF985PPmqq/mcdOQM2FzNsBNNnAN
HCMYtSj6Vi1Y2QIDAQABo4ICFjCCAhIwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQW
MBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBQT
jAM1PVDJoUTcI40jheomSo2gUjAfBgNVHSMEGDAWgBQULrMXt1hWy65QCUDmH6+d
ixTCxjBVBggrBgEFBQcBAQRJMEcwIQYIKwYBBQUHMAGGFWh0dHA6Ly9yMy5vLmxl
bmNyLm9yZzAiBggrBgEFBQcwAoYWaHR0cDovL3IzLmkubGVuY3Iub3JnLzAfBgNV
HREEGDAWggoqLnRra2YuY29tggh0a2tmLmNvbTATBgNVHSAEDDAKMAgGBmeBDAEC
ATCCAQQGCisGAQQB1nkCBAIEgfUEgfIA8AB2AEiw42vapkc0D+VqAvqdMOscUgHL
Vt0sgdm7v6s52IRzAAABj21YaPgAAAQDAEcwRQIhAOAG36LxZd9JJ61R0r4Aojwh
GbcBhxT9nU+95OQ56P9OAiA+x7cXCJVnKdrRsqJx/q2c5OvcuUNrPAePIvxOogKz
MAB2AN/hVuuqBa+1nA+GcY2owDJOrlbZbqf1pWoB0cE7vlJcAAABj21YaboAAAQD
AEcwRQIgaTvHH/OJjpWQ7LDurMAvBRMkGcSEgbApvYhvJci/L7QCIQCeZbiBL39M
BZT0FKr6HbxiAN77ju3PwggPZypFTP+OxDANBgkqhkiG9w0BAQsFAAOCAQEAUUQC
cGEJTLo6C9LV/dXxNW0tLyG1gCx+Uk9ghwjXehraJH6D2NTeD2nhu4zm+LDlFKZZ
s3TN4b2nhQXNfv4FpyC14ykhBKN+hTf9Ly0MIhgn62Hs5Eb+R1V8RZ5CDtzeOZEr
RvVyfUKi3mcTQk700yStJSUKkaBmW4zqx2W3LEZIlcuOshNdpPPEATGd9cjKnu41
a+rC7FV7+gl4Z1GCNXsfLLMAT70JLTSv6mcKvokoOEbhENb/2sW7J92pen/b0E1z
Cv+V8wsQhjjvBrYil2zFCylZv4fkaeaxxF0EJjwRgUQfdGf8lhJdwOkrnE9w4Lwv
aUMmQTpmlyszYQWn3g==
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxZByRBevqz52qQWXucbq
WIsjZWgSDSA7yNga3lqU7qVzQIl3BvO3UzfUH+up+eKItmWObYJxMenTTYnyvqZp
lyMNzLnMdn8jssF9YaZoNBp+aXb/DndTcd4yjxkQgbJBT+R06OZt4c4KgUlsxble
Wi10osdkJp6FCrvFoWDx4WZpa7Ld3SKGqET1jx4u1A6YaTNhODeWXS7bsZdH+vIB
2GynuUlMLBDsyhOexu9zAA3GxTXzRJ6ti9OLAZxyMkR/FHz4g0mGdF2LUUUhz/94
8LaCU37ncyzPc3g18E1ni95nMF985PPmqq/mcdOQM2FzNsBNNnANHCMYtSj6Vi1Y
2QIDAQAB
-----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 298024041766818575155393521180342231798809
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-12 14:07:41 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-08-10 14:07:40 +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 'tkkf.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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 24940175228989666721138277929457117944875736340135557796151369384122314344248557738632349551270532753283845433944019735711635396350637554068050829811659126427961392717561533750385604251184237529486099405571324530345548681088951186824414381581682482536712530350100209713858841065309899565157320810673753584084918745373913885701950976957041046252922161731476013668688953934075512693333769730967641516359693454751727462801389723231900643479931151770197839429422541884905451878954101844256938170069195254576548301034607583585357074784560518954432556018696647177350498792515129209121956179963093241465025886897707166816473
 . . . . . . . . . . . . . . . . . . . . [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)
							138c03353d50c9a144dc238d2385ea264a8da052
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.tkkf.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'tkkf.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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f000760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018f6d5868f80000040300473045022100e006dfa2f165df4927ad51d2be00a23c2119b7018714fd9d4fbde4e439e8ff4e02203ec7b71708956729dad1b2a271fead9ce4ebdcb9436b3c078f22fc4ea202b330007600dfe156ebaa05afb59c0f86718da8c0324eae56d96ea7f5a56a01d1c13bbe525c0000018f6d5869ba00000403004730450220693bc71ff3898e9590ecb0eeacc02f05132419c48481b029bd886f25c8bf2fb40221009e65b8812f7f4c0594f414aafa1dbc6200defb8eedcfc2080f672a454cff8ec4
 . . . . [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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