www.sienkoprecision.com

Issued by R3

About this certificate

This digital certificate with serial number 04:1c:57:30:24:a3:7a:82:24:64:8d:03:1e:0e:bb:f8:85:0a 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): 04:1c:57:30:24:a3:7a:82:24:64:8d:03:1e:0e:bb:f8:85:0a
Serial Number (int): 358092942809828611640838892775225289114890
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 88:a4:a1:63:ea:a1:e8:f8:a2:be:64:ac:aa:94:01:7c:2d:88:f0:6d
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 52:c4:c1:01:02:f3:84:c4:40:5b:65:32:11:5a:08:ca:b8:a1:00:9d
Fingerprint (sha256): e6:ac:64:0a:30:95:0b:45:0b:08:0d:e8:6c:23:46:3a:1b:08:ae:9e:1d:a2:23:eb:fd:cb:d5:3e:a3:d8:27:24

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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webmail.vianovabeneficios.com.br
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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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAy4PvA7BAiCEk4SqMcjcH
20TU1hAYovPB2se9kbA4nJeJmQdxrpepNtdU1t8dPpHX/ax+bK6ByNVhXkgG1cUL
Nt0yWz1ypb2jgztg8PMdddWBKsWlVrDAKmt7LrMZ7dm1d+gDUQgBpUCeZdwX/C6F
Qj1FtlOND9lHvAKdG1UZ/5OG0ARRryNCzc5V1pS2tqtM59ejNqKAoYcgtliFtv3x
kq7cwkwhvWoeknqqEx9HpbQ8lJG5mFwELf5gaA+F4N+jELA53dT2kZWQR5VM+KAz
pRrzGAEOtfTlWkO68rQ+hI6T2noUvCZEvGkz78wNXl7iuuU4M9L52aZUE4BWankW
2wIDAQAB
-----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 358092942809828611640838892775225289114890
 . . . . . . . . [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 2023-12-02 12:12:19 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-01 12:12:18 +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 25691434815719278582039381173643619669935601290781937384533148371298912173339170465534707936041897660461523175439634674726802571097942096472042404318753867712748244959416742910760704229502223386229992483346356638704035828437477618976741251273546435746934290598499117015869395234962866774747961392446733184824754432496642258057088829077980309976624604428985097900631651144719844980201935435411977932577588869834885780306009423592179493899246597339226827448753769831888547076201782273626348518083787306668790615625082162580244792644671043990430330921112812299734253607566227739138606620041322659815578263220718107432667
 . . . . . . . . . . . . . . . . . . . . [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)
							88a4a163eaa1e8f8a2be64acaa94017c2d88f06d
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f000760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018c2aa891ff000004030047304502204f24752cb24c33685da650da2f4c8e10909c2bde8888677f28fb5f6e09dc267f022100a6ab4564abead0355c7abfe951c59bc4f32d173692e4fbb2c6c6f27c3aafa98c0076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018c2aa891f9000004030047304502210099fe608c165e382e0f7b7487e22539465a8fffebecd825e24a771f12a732a58102202bd22c63eea31e48baddb0b0c9952080913a2357581ced3b9261357331c81499
 . . . . [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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