www.crystalinstruments.com

Issued by R3

About this certificate

This digital certificate with serial number 03:5e:5b:4c:67:f0:92:45:a4:d2:31:78:63:70:f5:54:53:ba 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=www.crystalinstruments.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:5e:5b:4c:67:f0:92:45:a4:d2:31:78:63:70:f5:54:53:ba
Serial Number (int): 293444756756174848681969374999397721723834
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 27:6c:f4:1e:9c:e8:88:66:df:c5:67:f0:e7:0e:99:e9:8f:50:7b:3a
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 8b:46:3f:d9:93:22:17:70:ba:9f:be:d5:c5:22:c2:3e:2a:9f:6b:99
Fingerprint (sha256): 4a:59:2d:e5:01:a4:76:db:a0:3a:9f:4f:d4:04:b4:18:a1:81:42:62:e8:09:bd:8e:6c:91:b4:21:e5:ef:ad:65

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

Revocation information

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

Check the revocation status for certificate www.crystalinstruments.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.crystalinstruments.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

www.crystalinstruments.com

Other certificates including the domain name crystalinstruments.com

(limited to 100 certificates)
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www.crystalinstruments.com
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help.crystalinstruments.com
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gss.go-ci.com
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www.crystalinstruments.com

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsLDEnNiVO5sKnJV3zU75
+zYf8IOwmrjyz5pUwp35Uz8HaAB2XuNdBuddNtvTdRQP6anB9Qo1cZE/CJ7onlQo
NaCAE6Gz5xGlMl2ipaOt7B0fVwSgdhOLSVu9ZXBhLoIVjfIT+M1DazjoVrFilQNm
r5zkEx9DpzZB5WN55ATZA36blvfdzGs4IIQgC2NkQQmuUv10/BVp7HBeJZXx3/+p
Eaq8d2qsp9yi4CIsUblqs6UCxfQVelPtqFxVn2twTtN3W03jkVv4N9daIUO6nC9D
rZILfjtO+6dBgVkYDYwErdkEXEfdwFZbLjSEdWN9YugM4K/tfoNVhCZHVVANJJqs
SwIDAQAB
-----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 293444756756174848681969374999397721723834
 . . . . . . . . [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 2023-10-22 01:57:30 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-20 01:57:29 +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.crystalinstruments.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 22305109232619803412550337823493829529254006699198013757693924419999281529047508434090756612905451872810044497843618583378322291548087953132839667103528159338767205394297983823968159229673778165875371514306864813202974977640895345683662229647184679663247169069376651651801500193592873448365159782612499889766770236851659809640520609567257383114448197884864159601290051559423189701206938786241495012179111926623023967547378678762753219566940368099294771691332476170618241793560114010942463905707588846577971385244709585368795165471543465375161459493261909371915539462501076674437994258572040293882759118769341911968843
 . . . . . . . . . . . . . . . . . . . . [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)
							276cf41e9ce88866dfc567f0e70e99e98f507b3a
 . . . . . . . . . . . . . . . . [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 (30 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.crystalinstruments.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)
							00f0007700dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018b5550f2000000040300483046022100a3ec5649fca045ae46d49d5c83e8af73cd56244bc2cb056f4492fc2de3b23b7d0221009adbab12da8d5ff62c11d4d23984269c3c548cf4f0e0728554412102e43372fd0075003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018b5550f1f60000040300463044022054ebfd93f462d30a6e21249ee31060cd2777f952b42070448baef0541888e6e302206a39a9471d9d4df3e8106731e002efbaf00eecc54c3c00958033b2e658f97da1
 . . . . [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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