www.microduino.cn
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:83:1a:2f:8f:01:34:3a:37:22:10:d9:9c:3b:4b:26:7e: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.microduino.cn
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:83:1a:2f:8f:01:34:3a:37:22:10:d9:9c:3b:4b:26:7e:c3Serial Number (int): 393060940660006649333061654084392988344003
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 51:e6:ef:ee:eb:0f:e4:a2:4a:4d:d9:8c:db:39:3c:d2:37:08:b3:41
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 21:8c:2a:f1:3c:0c:01:e8:37:e2:3a:9a:38:69:ba:45:29:55:bd:22
Fingerprint (sha256): 3a:a7:7b:49:0c:c8:aa:4b:fa:7e:10:bf:48:82:f8:ae:22:33:2d:f0:ae:22:09:a3:b4:6d:8d:20:46:ff:8e:54
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate www.microduino.cn
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.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
9 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
www.microduino.cn
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Certificate
The complete raw certificate details for www.microduino.cn in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGWzCCBUOgAwIBAgISBIMaL48BNDo3IhDZnDtLJn7DMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAyMDQyMzA3NTNaFw0x OTA1MDUyMzA3NTNaMBwxGjAYBgNVBAMTEXd3dy5taWNyb2R1aW5vLmNuMIICIjAN BgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAvspOwZ37DzbLnIOCrGmjRgZzr0pk a8rcnIcbf9/VXJW6slLgeUV1B3w1sYbOCa8RxFXrfyvmV8aUMvycF/ePbslc8QhF USmIir+lUnfwkllCQVuuq6g/aigvtPHt8enmFiEqQ6T3BfnWC42QI9e+bQETlG+T i9cErT7Z/EF4JBEczp8La5F2qIX2qls4bjlStFw7zCmhtpkFuuBw5832h6qEgCEM 4akxH8uJ7X6DWNJ75XAeDeSFKYKl1GNxC+cynqfM9fTX4Dilxr2WfsvN/1qxDs1Q Ik+WepkX/EuiQZwiTKqIcVrWImYu/RPnA/CtuDlmfE8ktF4qG9Lwvx31sO8FHM2s mBCYl/vAJW3CMKxAN/lHC+dxsvdS1Chj5210DJuqBoRHoMwXCbSD3hruwwBeDlR0 Bb0E9e0c8r0kESbrPd1hMUVIlJQjQZVrKcChccgbQst244ZvUB/aALNCP1cnckJ2 TQqdZs7FZ+Qtbt1XIZ5ouEUPuOvjwKlHWtOycJvh8oddB5+n1WfrRwhKclRMkJjO 1OITNt+ezCsCocoA2n50MZcX0Jn0lQ4LTCDUZCgrX1KxpVTUFI7Gm5cpe9f7kcdZ /YOtuiDp63R/AAhUTLmAacdpW0hZVbMbDcFtrzrHVtJV/EP2S8GsB07QRO6qnpDF WcElPlWkTSO7VZkCAwEAAaOCAmcwggJjMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUE FjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQU Uebv7usP5KJKTdmM2zk80jcIs0EwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl 7/Oo7KEwbwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5p bnQteDMubGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5p bnQteDMubGV0c2VuY3J5cHQub3JnLzAcBgNVHREEFTATghF3d3cubWljcm9kdWlu by5jbjBMBgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsG AQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQUGCisGAQQB1nkC BAIEgfYEgfMA8QB2AGPy283oO8wszwtyhCdXazOkjWF3j711pjixx2hUS9iNAAAB aLr7iMEAAAQDAEcwRQIhALMruoGEfdBoCXfK0Yn+yyFB+2HA9ggbob+M1gWAuCBo AiAEtTbh5xmW6gOXjN3RMTJqrSkWDWe0+fqOQRD74gIeQAB3AHR+2oMxrTMQkSGc ziVPQnDCv/1eQiAIxjc1eeYQe8xWAAABaLr7ir0AAAQDAEgwRgIhAKYa3N7jA0po 3WtlcvsE7gXdzzwYPNgdnH12q+un680uAiEAmnRCvc/aaOrhS5b5aQ3TS2Uk4Fue WBIcFouWc88UegYwDQYJKoZIhvcNAQELBQADggEBAIFLSwGc3Ms4Z4qN5QU8KmYF rTw4r8xForzXI/fNLAqVMptzsxaOhSqIc+dcXg5uwVehDsmEu2dl8ah2MvORjWAp mmzV5/ypK4IS3iEj34G2KljAw+5gKY7Zyn+LkgzyBfHGRUMnFT3vl4xEwWsosAgo CUlHPhYzp2hYCC4Ruw+ve8OkjXL8hOXfXCT7e/uqh+41lZBfvGiEvLWn7c6Chaio NnYwzENtaBK7pyoCDcvVRbql5uYLYVExbs55YUX+i08DGulbVcYKLivkKjFeWaEj KguqbPnszhZzOcUNrzMmmysCsILiN+s92b2wrhk4RhAzk7GclDHOXeCT/FvvU/Q= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAvspOwZ37DzbLnIOCrGmj RgZzr0pka8rcnIcbf9/VXJW6slLgeUV1B3w1sYbOCa8RxFXrfyvmV8aUMvycF/eP bslc8QhFUSmIir+lUnfwkllCQVuuq6g/aigvtPHt8enmFiEqQ6T3BfnWC42QI9e+ bQETlG+Ti9cErT7Z/EF4JBEczp8La5F2qIX2qls4bjlStFw7zCmhtpkFuuBw5832 h6qEgCEM4akxH8uJ7X6DWNJ75XAeDeSFKYKl1GNxC+cynqfM9fTX4Dilxr2WfsvN /1qxDs1QIk+WepkX/EuiQZwiTKqIcVrWImYu/RPnA/CtuDlmfE8ktF4qG9Lwvx31 sO8FHM2smBCYl/vAJW3CMKxAN/lHC+dxsvdS1Chj5210DJuqBoRHoMwXCbSD3hru wwBeDlR0Bb0E9e0c8r0kESbrPd1hMUVIlJQjQZVrKcChccgbQst244ZvUB/aALNC P1cnckJ2TQqdZs7FZ+Qtbt1XIZ5ouEUPuOvjwKlHWtOycJvh8oddB5+n1WfrRwhK clRMkJjO1OITNt+ezCsCocoA2n50MZcX0Jn0lQ4LTCDUZCgrX1KxpVTUFI7Gm5cp e9f7kcdZ/YOtuiDp63R/AAhUTLmAacdpW0hZVbMbDcFtrzrHVtJV/EP2S8GsB07Q RO6qnpDFWcElPlWkTSO7VZkCAwEAAQ== -----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 393060940660006649333061654084392988344003 . . . . . . . . [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 2019-02-04 23:07:53 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-05-05 23:07:53 +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.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 778356369685699878678008694806508575765092271316150349653988703421854363882266297928770914667623364622332410209906611869933832367527545500329556900685133181468097621263651722708831479166531799590174332220067070068401247042629028552450788481468616530320329987418703628898276226938714966209006172011636371542781770538730531648764304325748233653598045901735723254581036801033938117159572690324244943642483030027370473334298949592072187335008579528150536962691910028377836326306081767521451499016954580606569988184259153425732421876888282864402003538658161107016569204699656471554353515998896477115467417848825560332691908225427316590968899802399183971851976228392698868422265724055300450836117144382641236826974253495154146258375846745144275368407964796769515898971762455912379356942161178658317176003433134433199778864945445494880915427130869726425976789954349413783104887338176231390606393095573046377368666371122163736882624199264679541900157644768519879119379541725512623643823222320918310857579219506630214421990544327952427749727059463609171216288655494632275384657300982495866368161159099432112689272264992075969015704439699039789306484588345221019076552158566661037752978266144864146077287718222917026394666724345748466354050457 . . . . . . . . . . . . . . . . . . . . [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) 51e6efeeeb0fe4a24a4dd98cdb393cd23708b341 . . . . . . . . . . . . . . . . [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 'www.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 (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) 00f100760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d00000168bafb88c10000040300473045022100b32bba81847dd0680977cad189fecb2141fb61c0f6081ba1bf8cd60580b82068022004b536e1e71996ea03978cddd131326aad29160d67b4f9fa8e4110fbe2021e40007700747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc5600000168bafb8abd0000040300483046022100a61adcdee3034a68dd6b6572fb04ee05ddcf3c183cd81d9c7d76abeba7ebcd2e0221009a7442bdcfda68eae14b96f9690dd34b6524e05b9e58121c168b9673cf147a06 . . . . [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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