DV SSL/TLS Certificate for tthink.eu

Certificate is witin its validity period

Issued by Let's Encrypt (R11)

About the tthink.eu DV SSL/TLS Certificate

This certificate with serial number 05:c5:28:48:b9:47:52:f9:93:93:3c:f1:ac:45:08:4e:38:75 for tthink.eu 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 tthink.eu 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): 05:c5:28:48:b9:47:52:f9:93:93:3c:f1:ac:45:08:4e:38:75
Serial Number (int): 502650602665327977382219868233748913731701
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: 93:a1:9e:b5:5e:ff:d5:56:93:f6:53:08:23:e8:da:3e:36:df:56:c7
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): df:5e:e1:d6:1e:90:8f:8e:47:87:44:73:36:51:3f:83:b6:74:60:29
Fingerprint (SHA-256): b0:d6:ea:32:51:d8:04:ab:b4:c8:2e:2c:ae:83:16:4c:00:7f:b4:32:a0:dd:b8:ab:6b:11:1e:61:c3:e6:ba:b3

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

Revocation Information

CRL Distribution Point: http://r11.c.lencr.org/118.crl

Check the revocation status for certificate tthink.eu
2
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for tthink.eu

Public Key Algorithm
RSA
Key Size
2048
Signature Algorithm
SHA256 with RSA
Key Usage
Key Encipherment
Digital Signature
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 tthink.eu in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAreb+tXtMu0XWW4bq7M6J
t5QANgbFmIml/SREwdHD6YmnTF+yTy7X6MhzMMi2PXochzQ3NQMcpe1WqHCbZ17a
mlxGQjrELBkOnkDHZr6KC3Y1jfk7kUYk93/PbD8tY0Wshn9Nded247ExJ1E3R1Zf
fPXZzHrGPgW5tNwhfg6nHxmG9kU8rgHOPz42kPyq+0zjYlGjHP+MV/rQ9I7XfhwI
iB/zy0Y7yeCs7FBHL68BaqZRhY/AKUBSXPyhDyssdX9FhRntN5VZFoCP+KW8kx/D
8Gf+IeNQndZsW9J4NfiBY2IYU+KMXoyeg53qd2oFSEPu2GQZIad/FEB0kyeqdDPm
0wIDAQAB
-----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 502650602665327977382219868233748913731701
 . . . . . . . . [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 2025-06-21 03:30:14 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-09-19 03:30:13 +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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'tthink.eu'
 . . . . . . . . [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 21953134617676035902809070886485318191926791175222101583675877546364446339904042979178794243436013642328875559135442854204853126663580883005335527930606715471052040540606508388992022264830543607813682427014868213617905996358935694279891737555335026345970071249856073043226557376368376826189438678249873450464737156526261092662700172982158443291248873465881920048984091993456473681815546277824261425826650947676097411052152523806636319491367916753849993694876552900603593563032937817517660332525188393640813613734000355699542433596314568805506256770449932847785006661155668001249210214630960725289929562982402883839699
 . . . . . . . . . . . . . . . . . . . . [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)
							93a19eb55effd55693f6530823e8da3e36df56c7
 . . . . . . . . . . . . . . . . [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 (28 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'tthink.eu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.tthink.eu'
 . . . . . . . . . . . . . . . . [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/118.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)
							00f00077007d591e12e1782a7b1c61677c5efdf8d0875c14a04e959eb9032fd90e8c2e79b80000019790bef9b30000040300483046022100c5379b8a8965cadaa72a337ed0ae36da66a419ff502cf5829a851c890cd190b6022100b2f21e23a64907682efcba09d1c64c5a87876b07caeda74a896db0ef712effe30075000de1f2302bd30dc140621209ea552efc47747cb1d7e930ef0e421eb47e4eaa340000019790bef9b5000004030046304402203a758e2c7e4e3c0c35b47de37f38fb998820bcd38e41ec295eb4d1dcac7cdf9202205104ed3fb3af64ce3583d89dccc7e82fdfa34629a1db840dfed26a0d42178542
 . . . . [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)
		00228dd21d70bf79e5873143efaea8a7738cb149effbd6a19bfd9e870ba6bd3dfe46c008caf50ceefe058f1b9a8bba9299a53e89bbd37fc5cd56823ecf52ccc1acd47a6f844253a8055bd77ac50d52496fc238f4635be0358c61ac8fc09ff458c61315b514ff4262017db04813b28b19b83edc4ae9de10e38ff21e7317312d165f1e73475f4060f6b44cf53c120a6f7681ac2388b0bd93440e850737a075becb62ffc9ce41a1a47dece5dbaeb607ae0a32e42992dc908cbc58670fb8865d021ba68811ecb23e5fce5c5e441666167dfe1787bbcabc307abf72344aad73619e6814d04f59540e2fb981229909b8b92ac2ca07fbd12832802472cef473c8e7585379