www.crystalinstruments.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:5f:62:6f:c1:aa:bd:ab:b1:72:99:ec:47:b4:72:0b:87:30 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

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): 03:5f:62:6f:c1:aa:bd:ab:b1:72:99:ec:47:b4:72:0b:87:30
Serial Number (int): 293794527269340654453645231334068543260464
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: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): d0:83:1a:14:b9:b2:aa:c7:8d:a2:ab:ca:ae:a7:cb:ba:90:84:8a:d1
Fingerprint (sha256): d9:b2:a8:c7:f4:9b:cd:79:6a:8e:4c:fc:21:69:4e:70:fa:77:ef:f9:e8:5b:05:78:89:02:92:68:ae:cd:5a:db

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.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

8 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)
www.crystalinstruments.com
www.crystalinstruments.com
www.crystalinstruments.com
www.crystalinstruments.com
www.crystalinstruments.com
www.crystalinstruments.com
help.crystalinstruments.com
www.crystalinstruments.com
www.crystalinstruments.com
www.crystalinstruments.com
help.crystalinstruments.com
www.crystalinstruments.com
www.crystalinstruments.com
www.crystalinstruments.com
www.crystalinstruments.com
www.crystalinstruments.com
www.crystalinstruments.com
help.crystalinstruments.com
www.crystalinstruments.com
crystalinstruments.com
help.crystalinstruments.com
www.crystalinstruments.com
help.crystalinstruments.com
www.crystalinstruments.com
www.crystalinstruments.com
www.crystalinstruments.com
www.crystalinstruments.com
crystalinstruments.com
www.crystalinstruments.com
www.crystalinstruments.com
help.crystalinstruments.com
www.crystalinstruments.com
help.crystalinstruments.com
www.crystalinstruments.com
help.crystalinstruments.com
crystalinstruments.com
www.crystalinstruments.com
www.crystalinstruments.com
www.crystalinstruments.com
www.crystalinstruments.com
www.crystalinstruments.com
success.eluminaelearning.com.au
www.crystalinstruments.com
www.crystalinstruments.com
www.crystalinstruments.com
gss.go-ci.com
www.crystalinstruments.com
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 293794527269340654453645231334068543260464
 . . . . . . . . [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 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-11-29 16:00:16 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-02-27 16:00:16 +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 a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 (246 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 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.2 (unotice)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/'
 . . . . [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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