tyf.com

Issued by R3

About this certificate

This digital certificate with serial number 03:1b:2b:91:16:30:c7:f0:27:fe:d5:03:6f:4b:b2:3e:68:de 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:
  • 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=tyf.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:1b:2b:91:16:30:c7:f0:27:fe:d5:03:6f:4b:b2:3e:68:de
Serial Number (int): 270582391839087158314969521305787620550878
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ac:65:72:64:e1:7f:65:ef:6c:4f:f9:a9:5a:03:44:52:ac:17:84:46
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): c3:f0:46:a5:1d:85:62:7e:3d:b2:cd:cb:71:c7:1c:8d:e4:2c:3c:fe
Fingerprint (sha256): dc:f3:9d:c4:f9:8c:1e:90:e8:e9:1a:28:8f:7d:41:e8:24:e0:ef:07:3e:02:b3:cc:98:bc:05:6a:64:6d:e1:2e

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

Revocation information

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

Check the revocation status for certificate tyf.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for tyf.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

tyf.com

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Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuivVywjAkNXJdHy2kied
dS8Id6tLU6e9xOOneB/FG66b+m/Ak+PPOp4q7rJk0WCKiynrQWU1hqMJanfpkk6y
gU4Z6t0KJImLVtvCejWh7Blvi9/LNg5YWbX5NwRiGPEIpED16jPVzOrTz9qIIGAv
L9kW81mYwa9sLvbkD4a2FO6KgM7huNSGoNjdICWzKQu+QvYNII34vXfowzWYBSrp
AAttgLpMNaMoyf8J7rYQPK6XfmDyFl2+xDSwBV8H+lTiqUOB2uV7xgRQ8Ui/qm2D
m88AMTwvMYMuFC8bLISYCfEVixZXEl5UACEUzCD7Ypg2ZzsAXW7AopUwh+Ti/UgA
bwIDAQAB
-----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 270582391839087158314969521305787620550878
 . . . . . . . . [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 2024-03-19 18:22:27 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-17 18:22:26 +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 'tyf.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 23501940631583539544481373660561265214077532467672903217410801778864243055333058715792533534530452102266037071106136411332765681603351218785927428337675428969249249126306383681486556180949936971444879472199780340157735250210223083179864259279488533438521157057383821907713774977010883295343394596963538701647620188496469141706659113758505714347306195059754762297449666111836506172553277176207668862658244136613536305859915003299689807787109894379825220502090634391706089347505962031495559599759676687832934239543632945274728552213969849718549357905533304235313229682264669487035276135260308977899473833979553975369839
 . . . . . . . . . . . . . . . . . . . . [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)
							ac657264e17f65ef6c4ff9a95a034452ac178446
 . . . . . . . . . . . . . . . . [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 (11 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'tyf.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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee00750048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018e582a3e6e0000040300463044022046ca61f99c68703a1b59423205f8f78bf821b70148c89e572d1260974ca048b102207f430ceee691b0fa48551baf0a4e89a483553c82ff250fb2a61e79ecf86a5b2600750076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018e582a3eb8000004030046304402203ff8f89b576a58bd3e62155d22059e8c76510dcee4869832e9e133c35ec721d502200baa856e4812dfa08a704bb9198e79cca9a72d59a98464fef95af79659587852
 . . . . [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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