mcotton.microduino.cn

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:e1:3b:c7:c2:81:12:50:2e:54:15:62:ff:a4:ea:cf:40:aa 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=mcotton.microduino.cn

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:e1:3b:c7:c2:81:12:50:2e:54:15:62:ff:a4:ea:cf:40:aa
Serial Number (int): 425092137948091863068740727833811068338346
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 26:7d:8b:a0:d7:43:b2:a5:ad:d0:e9:92:ca:30:d4:1a:86:73:ff:b4
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): e9:d6:2b:99:19:e2:0b:eb:c1:d0:cf:63:49:92:c4:3a:7d:3c:11:92
Fingerprint (sha256): 3b:3f:ec:02:eb:41:4b:e4:9c:89:fb:87:c5:70:25:77:d8:2d:b8:b3:fa:ca:4a:bc:52:af:c2:32:e8:84:a2:04

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 mcotton.microduino.cn

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mcotton.microduino.cn

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

8 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

mcotton.microduino.cn

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mdesigner.microduino.cn
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www.microduino.cn
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www.microduino.cn
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mcotton.microduino.cn
mcotton.microduino.cn
accounts.microduino.cn

Certificate

The complete raw certificate details for mcotton.microduino.cn 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 425092137948091863068740727833811068338346
 . . . . . . . . [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 2018-02-08 01:51:28 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-05-09 01:51:28 +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 'mcotton.microduino.cn'
 . . . . . . . . [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 981570779030385533602266633863634008771937297300751471702591906962173265714058202736276392078203765346653030528471149827179375688292414672244770575806915322848710932862256325291761347911593454945814211194455780707556119371211222102715024352332491239152639065789441408600551058572964032593239567271166190150588765859880366389238921086742463418411220543374103656109338993599076975505198490486836701154619215879203645603021414537909105049893551900262290901926863219190332747828147751746970576404777355150407076972424447293282641352350947228170940911593739781931509466210653146280520072424734006261413337827212483178006312619566092023825156083031982936485240395370855807989351520274229036514220235955667459427324927445450557177649498402676784710526570185495818584341858664481916302493728710452661317776483157971236784018308132884542551216956333221701088298220943270153824704436843670285999407822038394045405567372135122783317522736022640991785479451708403416855028886280908992907537622442452670313569272215342618908147605205037802908008865579864501147056392451681794768562461603553031047854684275955484879155513380196316209343597125052921107034011520487054461799489245280471500434047480261650690135593398633250211678172331112147660867517
 . . . . . . . . . . . . . . . . . . . . [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)
							267d8ba0d743b2a5add0e992ca30d41a8673ffb4
 . . . . . . . . . . . . . . . . [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 (25 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mcotton.microduino.cn'
 . . . . . . . . . . . . . . . . [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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