www.chemdisk.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:6d:e1:f9:90:52:81:08:73:f4:5c:21:dd:9d:27:5d:07:9b 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): 04:6d:e1:f9:90:52:81:08:73:f4:5c:21:dd:9d:27:5d:07:9b
Serial Number (int): 385840293829596286384749807979303211435931
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 99:a4:97:4a:e1:99:a7:48:a9:c3:66:a2:2f:18:dc:cf:26:f5:32:5f
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 91:ee:70:1c:26:9c:fc:eb:49:59:8a:9d:97:cc:0a:e7:9a:c0:8b:c2
Fingerprint (sha256): 24:3d:10:e2:eb:ec:6a:81:c4:0d:e2:6b:4a:ce:a5:f1:e6:b5:88:ae:a1:2a:cd:45:50:6c:c6:60:98:a9:25:66

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 385840293829596286384749807979303211435931
 . . . . . . . . [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 2019-10-13 02:40:38 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-11 02:40:38 +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 833510061346404670798793000290970469053794190997781141400358140076885355721812926512114804080038752125491039899156649324409783637724799269701132626188322539422135200389000509983088839292006343544988540529379518117015181067264503100124719232144790134761374766249091038366457516084161659750820979937137574651476709730490529227512400030654765407227717938378079864396429515783223782251078758429706206794624937174731582495573467001932893379995542380556543660252351918545816158374992479607085235904366710907383562224510196367574117739863137043895068434255338441240711932619021773683148168956173296220899372280886053896393923213204694969580597671398909200325721732970864398559721738726947721308615604810245409629343188076510474938338649369432944548601502173117846463478737951605592389003528559798781817368027537445493755170806340492358430309131545568189938228152763979022232059429414943533697270157549829283480383309905067853056715668895699425477458297899783637182659731108972859950842753991364584103155543720384690422182193697833921682802546635849933511878030671850339079280830906689222901653378598789928387479630201741872303212394098691078032628602650980342543936962169008489406446223092729421337966723408269497283730291203822562123158489
 . . . . . . . . . . . . . . . . . . . . [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)
							99a4974ae199a748a9c366a22f18dccf26f5325f
 . . . . . . . . . . . . . . . . [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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f2007700293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016dc33428d400000403004830460221009fd49da2326fc476490a9fd5a518d3520776bf0903515fa77afa76db262f3dff022100f3a8d8336f392dc0c1748b6ad94d7529b6292e8a9b467564f13d69108deec0590077006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016dc3342afd0000040300483046022100c15414b7c9e1420f4f2737166c9e136a439b6f786d8d60ead6006137b30d651f022100ba17c2daf96c8badc75c4b074d8f847f0cbfdf3e5964cb92b2bf750911ffa9ff
 . . . . [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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