multiferroics.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:6a:ab:9f:41:78:b2:17:9c:1a:a9:21:ba:9a:ae:1b:33:83 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=multiferroics.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:6a:ab:9f:41:78:b2:17:9c:1a:a9:21:ba:9a:ae:1b:33:83
Serial Number (int): 384747199511059311978766116281444252464003
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 96:5d:b9:37:6f:5a:54:4e:18:07:f4:9d:78:87:0a:25:14:e7:a9:38
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 99:e7:df:00:53:0c:bf:c4:69:5e:12:e2:59:61:71:f9:be:b6:fe:fb
Fingerprint (sha256): 23:ed:07:e3:97:a9:a2:0f:57:43:26:1d:0d:b8:10:7c:c1:11:92:0a:4e:f6:de:e5:ea:9e:db:9a:c7:3c:18:8e

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 multiferroics.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for multiferroics.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

multiferroics.com

Other certificates including the domain name multiferroics.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for multiferroics.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 384747199511059311978766116281444252464003
 . . . . . . . . [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 2019-12-02 08:27:26 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-01 08:27:26 +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 'multiferroics.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 788299989380951332772913242920331941981767299911002239836472905837975243139419747636840725413649947988895068779357676482583777453849135095028041161706419224394384103913844742657598484265381070441287433581150399993932006363764719551062941115840044343476663937579942693508706943260585170764639056922567395832222819525446753191220540241459333247075726872056841772560816396551186012208558264936579202925665612676282797401507956725584659229501262032435664110172461594083529903851293669354320199688139437983902953197049157412053748628674957044907537035539139285189588642595844453272775150339957018506787857771676126818754022523491850747605399280729868949261954027160651018422013764240794068868897322240721295326588089998733554647256582661611449842100717732732963579152642480069017585982917158843060257078842821056359950115772220434470390210555775696260646968968113755712231769955159304537378801532280199248104719716302365846856139373915193599986910415215820328307260199445349463197248818299504315139675204058075657189732325430571575822056589707905133168472444704375172249898339643956967206863433326153600633440488049411400785825216234517557651931991834746035961176677498496091963247252129445518787866418296324083206912516974649860464444709
 . . . . . . . . . . . . . . . . . . . . [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)
							965db9376f5a544e1807f49d78870a2514e7a938
 . . . . . . . . . . . . . . . . [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 (21 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'multiferroics.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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee0075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016ec5efa3e90000040300463044022047f8d72aab748e3eb928628a0259dac4be3bb7d5bb4ba524ad9c0a396ff4aead022034e5c9e29ee22bdca36a1b23f4224427b00d1e40b14e476c4fb76e55971d087900750007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016ec5efa401000004030046304402201ee67d68fa553790f47e1d8b86ed5804f9f5669586b6bdac8f70f5e71f6deb1f02205204779f163baf94388938706094b4de94a69a87ab1176f2112a8b9239d3c50a
 . . . . [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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