armstrongfluidtechnology.com

Issued by R3

About this certificate

This digital certificate with serial number 03:90:84:a1:90:ff:85:88:06:54:96:1a:51:b4:a2:81:3c:54 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=armstrongfluidtechnology.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:90:84:a1:90:ff:85:88:06:54:96:1a:51:b4:a2:81:3c:54
Serial Number (int): 310513815628045201998159332984805486836820
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 77:87:93:6f:a5:eb:da:ec:a8:30:17:86:96:2f:de:b9:a1:97:7e:3c
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 66:55:2a:de:da:4c:73:cb:e1:c1:c0:31:7a:18:5c:c5:07:4b:5d:14
Fingerprint (sha256): ae:5a:cf:6d:13:28:36:83:08:0f:0c:d3:c8:e1:5c:90:f9:bd:f2:15:c4:95:25:c2:81:48:32:22:1a:73:78:53

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

Revocation information

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

Check the revocation status for certificate armstrongfluidtechnology.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for armstrongfluidtechnology.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

*.armstrongfluidtechnology.com
armstrongfluidtechnology.com

Other certificates including the domain name armstrongfluidtechnology.com

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rp-lync.armstrongfluidtechnology.com
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shop.armstrongfluidtechnology.com
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blog.armstrongfluidtechnology.com
info.armstrongfluidtechnology.com

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAs3XT+dU1g4wgpMwaoJE0
Ez2WZ9BvscSh1WuDiPvgBjrc/K+RjTQZgA5v0hnSFZ2hedfOOWlGauqdP/FPqDAG
wTSfmlTCwqybaP3gqXG9KG7PdjM8WHup09OXW/Z4rkrGZZWsrELgOEALyM+Pey9C
Kdht04Kl1K1KtbuI33dhCN8PzKWAr+0PeXIdudJjUj+FDuGGZQ54AoEm11nB5j1g
pGQccHbDVgTLZN6WFopp9u9fCk/jcvNR4GoPZmzm5/UzCl59IeDuMNfiGdECsoDK
vavp+am0BnWdnOtS5lTv9j+xLKZoHJJ2cFI2+D+dxhjVCuorObv5J0Ux3r93nRdl
jwIDAQAB
-----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 310513815628045201998159332984805486836820
 . . . . . . . . [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 2024-01-09 19:46:50 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-08 19:46:49 +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 'armstrongfluidtechnology.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 22654759756494380181841974884932940593951387759243794487495853490489875087048929854956789642448322280264945129029792227644251907106954903675252579258439474906039370197235091593692021309106180130277015022145156168279016898965817955182761052514176032261625577087928225364035150021321440490642083982568610128793010975543800506934339117454940891251527349792925323935393914067169761404420970818592769943710475257729326914825874210822690462420749131032053877739421102457906656254036471072711548818428752310115349242998495966578022922609902798344001182526344908893455047189106569047697077059792731727267280088007688051975567
 . . . . . . . . . . . . . . . . . . . . [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)
							7787936fa5ebdaeca8301786962fdeb9a1977e3c
 . . . . . . . . . . . . . . . . [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 (64 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.armstrongfluidtechnology.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'armstrongfluidtechnology.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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef00750076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018ceffa57f7000004030046304402201c8d14a639e358d7b55046af05440db222908fa200834e0f327bf6389e3df38502201eefe464833edad9b136d88a3f2ea36f08368b988ea4012cfc39a9f33184333d00760029d03a1bb674aa711cd3035b6557c14f8aa78b4fe8389449eca453f944bd24680000018ceffa5833000004030047304502205ed6c30410a28540e543c2353c906c28f796bcf1b05316383b194295cb8065fb022100fa6e1ad915e41ed360f6d26e45670fdcff5717cf9f3f8c477fb09db883baaefb
 . . . . [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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