www.chemdisk.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:5a:24:d0:59:aa:7e:0b:02:47:e2:ad:09:92:d2:cd:db:c3 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.chemdisk.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:5a:24:d0:59:aa:7e:0b:02:47:e2:ad:09:92:d2:cd:db:c3
Serial Number (int): 292011204842402284639762580452574193638339
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: c4:4b:ea:15:15:05:87:79:aa:ce:0c:d6:37:a0:79:f0:66:1f:d3:b5
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 71:56:bd:63:dd:57:b8:e2:6f:12:7f:e5:80:0d:c2:bb:fb:df:40:77
Fingerprint (sha256): ba:b2:09:fe:d0:df:37:e9:d8:4b:f9:9b:f9:4c:3a:31:3e:da:07:ea:e0:a0:e2:0d:c9:a4:2f:d2:e6:22:d4:0f

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.chemdisk.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.chemdisk.com

Public Key Algorithm

RSA

Key Size

4096

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.chemdisk.com

Other certificates including the domain name chemdisk.com

(limited to 100 certificates)

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAvHqwmthSAZFEWsydBiPm
mMGy1VtR7y0IAecnxD6KqTuaGZnNeo7AjdpDCHquNnWSZUZRYPN731KTQVxvbj2W
KaDejDqmL3NymLNowBHAFo5TeMhgKOQHdnrPoVNXaIhYsiCVktviQOmSWhhi3BK3
cQ54kIfAALUfzkFzihcjDXzeqR24gDNPH5gvZhSV3RlxuO5rmaYLlpIyodLm4vxO
h3ksgos5TKIQ9MIlfhgeCpJJOEuwvbW51KqwklmevIb8V+y8Eo+ZYeob8XjulV3g
Ui7nM5eQjhByq8ncesSrz1YjucfRwb16sVG2Ub6YUb0wIom4Crw+lBzM86gKxTr4
iShkNuvjTRcrBHLPvojdokFi4JXvEdzpbBoVE4c9NSGWTcRF54DJ87sgDejg6FoA
h8LP5vDGHPnKoQANL07nb0S+kOkhwnhDNdul4wQnc7+vuiesaAkAo3ejfdYMSnqB
yC2wjs6a81ilYpbicy+x+5D4LEWrYpA2CY9zh4zLmmiQwsEJnbNMTD+LwJ/TrptL
Ylfc1cPiJjCLpmldVNN4C/cqa81i6SpeEjqkWvt9A3J98aJaHELJZY2nsE400acJ
Viwyhs31LbH4cVZLtChVgrXJx5jvFgzLt0Ty2dIKDjjPeu/fcdpdMPoL2BiTL4Z9
MCIUBteMbYP0LFVeCYKFRp0CAwEAAQ==
-----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 292011204842402284639762580452574193638339
 . . . . . . . . [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 2020-02-23 19:53:45 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-23 19:53:45 +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.chemdisk.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 768928283892326328233390100496028236704747437419670042650071633195354240860807791810642316899549644054477663855222842113128343377814447363317613924856027756585290357948707392661680696761515015347434410919205472048029025263926845872631779959678961773628564525700728594334747845042719797876312135864389272579936105983781072315570356121219311094671452035911506083286925709955697776035235347756770138136938322112760742179568207161435296670360355855765896030020072148813348490654238514414534530412682533103314794063426433573250729176006482342779774204803477228356082442391666040688679491706188092450270258774216304298711454728900044152284470085127970669941597715157520800647246045803713606893334906295235399168475158178563842150213032594732822879429047861254904007579920639706357826325815843342856365599270434815311784625821999457504121888010331293716112665705509487059682861388043383158761604686339849478945121061554338153214097865724680704897319797305368110944520284253494090692073879058771327847501491620102866813606099294406838611932444513366062918149323993079250919593041451427819606269397679089016055634002106915909031275728632207254270597445238416389914628724849142274431590092159838992158167067955979748918454595915853245683418781
 . . . . . . . . . . . . . . . . . . . . [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)
							c44bea1515058779aace0cd637a079f0661fd3b5
 . . . . . . . . . . . . . . . . [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 (20 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.chemdisk.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 (69 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007700e712f2b0377e1a62fb8ec90c6184f1ea7b37cb561d11265bf3e0f34bf241546e0000017073d3cedc0000040300483046022100aacc8f8d39122ec44091927412bca4f9ccf6da757b4befadfb1b9da3dfa524f0022100e2f4829d4bf37753efeb9d3693b06562b6a0e717f7dc53a1727053525e4db0d6007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000017073d3ced200000403004730450220105d33ddf12ecb6b5deb900dae68e59effe22a5af9b3a050f02e0fa82eac3958022100f8b601abcf3952986147b62a258de43018fa024792b41a87ee9b51ee070ed1f3
 . . . . [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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