www.sienkoprecision.com

Issued by R3

About this certificate

This digital certificate with serial number 04:a2:15:88:49:ea:cc:8d:96:78:61:6f:66:89:88:6f:80:c8 was issued on by Let's Encrypt.

With 2 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=www.sienkoprecision.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:a2:15:88:49:ea:cc:8d:96:78:61:6f:66:89:88:6f:80:c8
Serial Number (int): 403603508607735858843480263173992784822472
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: d7:2c:d3:5e:b0:b1:60:59:87:ce:e2:1b:20:2b:42:80:75:f6:9c:79
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 0a:24:96:97:3e:a7:27:06:42:cd:ff:35:df:1f:79:68:63:d4:d4:fd
Fingerprint (sha256): 07:bc:c5:89:87:bb:a7:e0:aa:40:20:4f:45:7b:51:89:8d:3a:90:d5:c8:12:35:56:9f:30:c6:bf:b4:0a:0d:c0

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

Revocation information

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

Check the revocation status for certificate www.sienkoprecision.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.sienkoprecision.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

sienkoprecision.com
www.sienkoprecision.com

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mail.kmsplastworld.co.in
mail.bvawellness.com
www.sienkoprecision.com
mail.taironacoffee.com
mail.taironacoffee.com
mail.congosemcg.com
mail.cemarketing.net
mail.ppg.co.ke
mail.ppg.co.ke
mail.liufamily.hk
mailth.travelholicsllc.com
mail.kmsplastworld.co.in
mail.probolsky.com
mail.cemarketing.net
mail.taironacoffee.com
mail.boostyd.com
mail.cemarketing.net
mail.dibi.co.za
mail.enseyab.net
mail.traficus.club
mail.congosemcg.com
webmail.wanderlusthostelmaceio.com.br
mail.probolsky.com
mail.taironacoffee.com
mail.taironacoffee.com
mail.traficus.club
mail.congosemcg.com
mail.sienkoprecision.com
mail.traficus.club
mail.alasda.dev
mail.traficus.club
mail.melkor.tech
webmail.wanderlusthostelmaceio.com.br
mail.cemarketing.net
mailth.travelholicsllc.com
mail.sienkoprecision.com
mail.sienkoprecision.com
mailth.travelholicsllc.com
mail.traficus.club
mail.ppg.co.ke
mail.eaglefamily.io
mail.enseyab.net
mail.taironacoffee.com
mail.taironacoffee.com
mail.traficus.club
mail.boostyd.com
mail.eaglefamily.io
mail.kmsplastworld.co.in
mail.taironacoffee.com
mail.dibi.co.za
mail.traficus.club
www.sienkoprecision.com
mail.traficus.club
mail.sienkoprecision.com
mail.ppg.co.ke
www.sienkoprecision.com
mail.eaglefamily.io
webmail.vianovabeneficios.com.br
mail.ppg.co.ke
mail.melkor.tech
mail.eaglefamily.io
mail.adxa.net
www.sienkoprecision.com

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzTZwO0gi5TKPqLAnmNAa
yg6RFvQgKmqup49gKFBzv+9dEcW+Wso7+kFh2N+GLh5ISm5+0EqcaA/tmjssIeAV
L+EjqGXa1uL39usyw8JFxogcLjJNoqqvCh5l82iP/g4l3PtS6+xtSqmbAVa5sJNm
jpndndLc/3flq5k+2Lq4c2VfS2tlamjX+88mIZUdpuPeuT7ELgWTKYdunc7D0+e9
eVQj6sCfWND2O3KUjvKE4J+j0BTvWOLktpJq/ml/F4CGkS/mOReLGBaF2FX4dGwX
u6rnx2FfQ/zOkXMtiNcdYoMmiDXWmxYy+7fuFPhIVwO3S2MZutE0F49g0RHPPx1p
BQIDAQAB
-----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 403603508607735858843480263173992784822472
 . . . . . . . . [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 2024-03-23 10:39:52 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-21 10:39:51 +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 'www.sienkoprecision.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 25905697095845720117513606510087249120518700598815760952491692156085083604936842577740456658486116601567256491196825930423381783664011071220604884142895220032334967595722998556440566262909758470632528493867938468454498362886411019523315032987311338576843453221668449991697667667792086712583957848717451878101389828796420959515526575180381941407118163320140664540114347921715730054439004765162668192827511835011147360149622540564902815817873154056000341056667537292944149675330753203088042048542245923047739876055739789806757787547671123812794653354097739977367360874325038810799902016312003550021935528474968191756549
 . . . . . . . . . . . . . . . . . . . . [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)
							d72cd35eb0b1605987cee21b202b428075f69c79
 . . . . . . . . . . . . . . . . [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 (48 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'sienkoprecision.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.sienkoprecision.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f10076003f174b4fd7224758941d651c84be0d12ed90377f1f856aebc1bf2885ecf8646e0000018e6b1c2f6c0000040300473045022100aa2d236434a65175ee0603e3fc31d30942b692602307852eded105f410c3b43f02207f033b786aced16930468c10209029b6ebe39a34b1a7ca63cb965c65c6890222007700a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018e6b1c37400000040300483046022100fa05a0d3477cbd54cdc443f85ce585aaa70cbca1618aee701257e5aff01d37f6022100da87407483ae5b6f15e2ef2f41e65af434b682d2c88587b950fa276315d53256
 . . . . [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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