www.chemdisk.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:a5:ee:51:d2:fa:62:02:c1:87:d1:22:50:b2:a5:ea:3d:89 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:a5:ee:51:d2:fa:62:02:c1:87:d1:22:50:b2:a5:ea:3d:89
Serial Number (int): 317800229455421327968270641597514934533513
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: b3:b2:6d:03:0e:f0:fb:37:9a:ed:56:43:bf:72:ea:34:c6:3b:cb:70
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 57:07:e7:7c:a0:83:ca:0a:7f:ed:82:8a:e0:e6:59:75:99:67:9d:c8
Fingerprint (sha256): 67:21:c7:d5:aa:21:37:27:a3:da:50:76:8d:6d:20:dd:4a:c2:4d:ac:9d:8b:80:ca:d4:fd:54:5f:e1:89:82:30

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-----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-----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 317800229455421327968270641597514934533513
 . . . . . . . . [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 2019-12-16 16:33:17 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-15 16:33:17 +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 764551908289201049631905855837154554325807775738994543618909841286518651197804517688194415045024696088325602742599415942125085459356470330591065806950306862646735536160047096385226809658534262498079663464061157056723913893440878516951453592093997251849638518901355920876166963856911816627007814202609480608995142533838027388313113456361577088689823957403307137818662771031417931868377756698174659959769242792177805293557711942942609964703745429597382361696022632694582696342649740898144324330585661005620647673008158493623753101101355752886754438818755839154951574231225949266038331515683623984409673851734503945757912957688320789638620198187325845960891772836034226347574459923519411782269063861474954347569742718390155444835770555289297418204091735470671968801707777978590468243471853292021188579118713208087428970148604471729681266368316023088935306573615522888404779440427544198633260465285999966891892256776947707627374595721391809548540105299895578019053604674520961242436743173165163950821395390882022420972861448231583110923432604135838556105112226517744272238344866364435605206471816300466647962123784319146974624635563741886974417747367645099072514044745263870148222849447294197173764098051663436733491319887622829161068623
 . . . . . . . . . . . . . . . . . . . . [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)
							b3b26d030ef0fb379aed5643bf72ea34c63bcb70
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f0fc5779f0000040300463044022046a3d5820e5061df991db490d1c23b7b19328f48b5f7aca35c7a662fd3e417f4022003350aabfb828b577e1fc8f8212581c028fb12793bcabe5affc92a3eb862a4b0007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f0fc577920000040300473045022025c5e7b286b278c6b3c3d508139a53fcb97453333f73f73f5b88774d8c13b14602210096273ea99cdc49a53ecbe46a681a307285db94efc0b317ff0ede9356661ead77
 . . . . [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)
		0032483352393de5ed480a70745936dce2d94eaaa25ab8f91412fa57a4a7878c4b36995b84d8bffdb4c2aaa087a5092faf1749975a99ea4b26a3bfd929a75b6d80d7bb9f16700c191d287c342fb3ba10296f0a6e3723d788e0226c71169ac5d6740d6fc77cefec5fafa9acd55413075f678285441af876ad4edf370ef5c8705cfc8f5a7436be104f984d53f0a4463cf8898caef0dea77c5770bc505f4e1db1e314e1109114bbc6346cbc0e9fa06167d26dbc170083745570063c984ff8cbe1a0b690239f3511bb2d7ad66ce30b859b092937ddc7e230247e1704c381a0a36320c6417e70a928fd9c7a8f5ee25a660a86c11c990b911d21e0bbe45326e33be4e945