DV SSL/TLS Certificate for www.deffi.ua

Certificate is witin its validity period

Issued by Let's Encrypt (R11)

About the www.deffi.ua DV SSL/TLS Certificate

This certificate with serial number 06:7f:46:11:44:12:a9:da:04:1e:e4:73:30:80:38:ef:7a:f1 for www.deffi.ua was issued on by Let's Encrypt.

With 2 subject alternative names, this certificate can be used to secure multiple FQDNs. This DV SSL/TLS Certificate is currently within its validity period but we haven't checked the revocation status of this certificate, you can do this simply on revocationcheck.com. We have found some issues with the compliance of this certificate, they are be shown below. We hope this DV SSL/TLS Certificate review for www.deffi.ua provides you with the detailed information you were looking for.


We have identified some issues with this certificate:
  • 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)

Let's Encrypt

Organization: Let's Encrypt
Country: US

This X.509 certificate will expire on

Certificate Details

Serial Number (hex): 06:7f:46:11:44:12:a9:da:04:1e:e4:73:30:80:38:ef:7a:f1
Serial Number (int): 565982711798954730448283083690639314877169
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: e1:50:ed:9e:9f:71:bd:5e:dd:c0:a4:ef:46:72:9a:fa:28:3d:30:19
Authority Key Identifier: c5:cf:46:a4:ea:f4:c3:c0:7a:6c:95:c4:2d:b0:5e:92:2f:26:e3:b9

Fingerprint (SHA-1): 13:55:57:57:52:78:d6:c3:85:cd:da:31:b9:57:b2:71:14:57:8c:0d
Fingerprint (SHA-256): 88:ad:12:7e:80:5f:46:92:17:39:18:37:39:bb:d8:26:a4:db:bb:ec:e7:b9:68:df:53:cd:5a:00:09:92:39:14

Issuing Certificate URL: http://r11.i.lencr.org/

Revocation Information

CRL Distribution Point: http://r11.c.lencr.org/114.crl

Check the revocation status for certificate www.deffi.ua
2
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for www.deffi.ua

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
10
CA Certificate
This is not a CA certificate

Subject Alternative Names

X.509 Certificate

The complete raw X.509 certificate details for www.deffi.ua in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAulBbE9vXixdkhlFHHaaD
aNrzE7LvddCoWLVkFV/+JYlBq9WQdVO3npApJUma/e3K2kadk6i4zsHNQmiMZ996
jFxchb4lKqbANuJQAncWEHov6LypWMD8NuhgJoJ0JR7VWNEHRggK3NS8dXHvie8A
VvdaBXavByixLOHT1gM3mQUniS6pU0bdt1ZH/ROlqu2Smrk0KIUiWSJweXXzoLNK
Xhso68IUVKb01TAaaGvjdUdFY18X1aMmvffxmiKC75+o5yh76CfATUkaiWMUBmhS
bEo1TJt5LoOapG0NSbGmHWQIy0vQbzeeUW1E9TsWCfW0DM3JP+4vL1M1uon2KohV
JQIDAQAB
-----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 565982711798954730448283083690639314877169
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R11'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-06-06 09:56:06 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-09-04 09:56:05 +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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'www.deffi.ua'
 . . . . . . . . [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
 . . . . . . . . . . . . . . . . [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 23519949631587526050408180318838939079454785151300336856854413615191083561967214774545364892811249601360205369124037160089574270438822511080156792812370442278907508556518557524176520024341481243061549360438382640090901044955200226323806531201378204528474247114503166622069385961841682273694604861407248873285818511894198353049975327858564240218313296514828986028710880114378070793173553813467357643600899743281935722461625834075793347316725998679451517866246857343779033979760877313713835444189330456467212881784474840529923093373829803207952133350155059197410432829917619761253608177339319091302298726297174448559397
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							e150ed9e9f71bd5eddc0a4ef46729afa283d3019
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName c5cf46a4eaf4c3c07a6c95c42db05e922f26e3b9
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (39 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r11.i.lencr.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (26 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'deffi.ua'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.deffi.ua'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.31
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (40 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r11.c.lencr.org/114.crl'
 . . . . . . . . . . . . . . . . [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)
							00f0007600ccfb0f6a85710965fe959b53cee9b27c22e9855c0d978db6a97e54c0fe4c0db00000019744e0de540000040300473045022033a4ffe703d6444775d36bd7a7a463e14153ca52eb1ead9f77356a9f370a593b022100f03c66c6fb285f31c301bc96c5713a624b014bfd213a29bd2168fe84c2c0552a007600ed3c4bd6e806c2a4a20057dbcb24e23801df512fedc486c5700f20ddb73e3fe00000019744e0e6290000040300473045022100f2325bc14a1ab9af7ad411e9b3d9ab2be7c18b032df65dc9c054c34a1f1dfeba02207c9c3792fbe193f59e3c3c953c1f419bde982acce9b2f91b1f1bf2b96c1606d5
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . [c:0|t:5|false] NULL []
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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