mail.ygcourier.com

Issued by R3

About this certificate

This digital certificate with serial number 03:bb:d9:b6:e5:c5:fb:3a:5a:62:b7:df:c1:44:88:54:80:07 was issued on by Let's Encrypt.

With 3 subject alternative names this certificate can be used to secure multiple fqdn's. 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=mail.ygcourier.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:bb:d9:b6:e5:c5:fb:3a:5a:62:b7:df:c1:44:88:54:80:07
Serial Number (int): 325259052542967311224110579528962592243719
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ac:b0:5e:06:9c:86:b6:f3:2f:df:47:6a:0b:72:49:94:e3:cc:cb:7c
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 63:75:fc:be:c6:9e:c1:8d:7e:08:78:9e:e8:8f:ad:b3:91:68:8d:f0
Fingerprint (sha256): 0c:12:fd:ff:cb:3d:30:e2:35:44:28:af:67:44:52:43:2b:e9:77:47:d5:c5:19:9e:60:0d:c8:40:4e:c0:31:fd

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

Revocation information

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

Check the revocation status for certificate mail.ygcourier.com

3

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mail.ygcourier.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

mail.ygcourier.com
www.ygcourier.com
ygcourier.com

Other certificates including the domain name ygcourier.com

(limited to 100 certificates)

Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----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 325259052542967311224110579528962592243719
 . . . . . . . . [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 2023-11-19 15:11:49 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-17 15:11:48 +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 'mail.ygcourier.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 828488746014058102233647603355806765884719092328874416241882524566416517287156983362723016932186574113958718226357978219037905158152363371788771823145050140545239875202754099123189276321049626824278277784200307381089553823580718975498794992305087323626609594879761553864394057339763995624694107484843148605614790850672836830383134158200139302646021011302101153325156101332815382177132579036487945785515534110489570301207839504716718177107797893232075578400320121071416949428202721289921287567071478228222420519173428711222638209360036397658677308962712184108437184474273539732166920423125083840907983644800082765456091551790902528535101892100452027116742118527356522862366676728213101177481282241025720985820571897890675220024744962660287036055750158520005980553838726140990427378459147282301572679469423143431126750932781428528081281885062650296113691104937700694767230791983713685527851740094490140268355638604439742259076329403900549690708070253268681946244457474003403493157800646885888716874278033103539343981112226828302789034347595520830735558766093377536741902138614275285551513791667497360256475499529688834710019507139314457268184591280705908248509809310756754709487723755362007553655538058058881729845185927792569369796711
 . . . . . . . . . . . . . . . . . . . . [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)
							acb05e069c86b6f32fdf476a0b724994e3cccb7c
 . . . . . . . . . . . . . . . . [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 (56 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.ygcourier.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.ygcourier.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ygcourier.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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f20077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018be85a3b320000040300483046022100bc43df0292a46aa6cc35ea5d07c34af513a00c495a8e13a84060a9db9414cede022100ebeb73df641c93f9c15ec6475741cbd9abc007a5c84c7d088c096ddd75f26b1d007700eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018be85a3b2f0000040300483046022100ad187a9eef6a1ae90cc5c59ad8684b1042c851c6748a933e47dfeffe0c3fd968022100b8272851b46c46d30285d05222e2e4ab4484071fd95edae430e994bafb34660b
 . . . . [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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