ai.microduino.cn
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:dc:69:77:23:c7:b6:fe:4f:4d:99:d9:85:a2:4d:62:15:91 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=ai.microduino.cn
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:dc:69:77:23:c7:b6:fe:4f:4d:99:d9:85:a2:4d:62:15:91Serial Number (int): 336339166066478157894547979429834418951569
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: ab:26:5e:f4:d7:9c:11:b7:7e:9f:07:f0:07:a7:54:67:8c:92:ed:ef
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 74:4b:fc:97:a5:8d:92:13:a6:6c:b0:2e:1b:da:e7:48:fb:8d:32:43
Fingerprint (sha256): 28:dc:2a:34:b2:b2:72:5e:d2:9a:e3:5c:db:bc:9e:17:a1:27:eb:51:d8:2c:77:62:09:02:07:84:a7:9a:03:22
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate ai.microduino.cn
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for ai.microduino.cn
Public Key Algorithm
RSA
Key Size
2048
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
ai.microduino.cn
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accounts.microduino.cn
Certificate
The complete raw certificate details for ai.microduino.cn in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFWTCCBEGgAwIBAgISA9xpdyPHtv5PTZnZhaJNYhWRMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEyMTMwODU4MjdaFw0y MDAzMTIwODU4MjdaMBsxGTAXBgNVBAMTEGFpLm1pY3JvZHVpbm8uY24wggEiMA0G CSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDX1WrB/zvm9nbCxt9C6F4S0g+COosY tfthkoIzjxff+XGLfr9s8jqV1GM18QNBDUoL2U3xLB4oC3O5P+L+LvMNhfbL1kig juYBcUrncaSGOAmFgodjYtNXYsI8qYf2KnGoZX8mwZamXFedRdse/g+7DBURz7YX hY30G5KsiTU0vJoIZmDlb+shjcoxIu4eJQ70tqKrkjl7ufKC4t0b111Paotsv5Zv TGu5cGaa6wYfV78jlaF2259Qw6TSzHe+W5oyLpMcSfxUzOsnkN+kS2VTiMtDJa2Z Esu+Y5hS0P/XgbsGeo/T9lZq0izDy/t6JKbE0QQ1+OAKYrgVVmSY8hepAgMBAAGj ggJmMIICYjAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsG AQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFKsmXvTXnBG3fp8H8AenVGeM ku3vMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsGAQUFBwEB BGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNlbmNyeXB0 Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNlbmNyeXB0 Lm9yZy8wGwYDVR0RBBQwEoIQYWkubWljcm9kdWluby5jbjBMBgNVHSAERTBDMAgG BmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRwOi8vY3Bz LmxldHNlbmNyeXB0Lm9yZzCCAQUGCisGAQQB1nkCBAIEgfYEgfMA8QB3AF6nc/nf VsDntTZIfdBJ4DJ6kZoMhKESEoQYdZaBcUVYAAABbv6x/AwAAAQDAEgwRgIhAPB8 ZGXcA54KVxGXtYoXdGWJi2NrCyAytfTCflIb20opAiEAuFX1NHftj50PAyO8cMr2 XNBVgJpS66ckKnylqqzXz5IAdgAHt1wb5X1o//Gwxh0jFce65ld8V5S3au68YToa adOiHAAAAW7+sfwzAAAEAwBHMEUCIQCd8lvIT7lIArzsJjWQdiNrrUsFWQ18l8T+ qlRGOtzO7AIgYeNpTE7ve9q570w2p25cTgkK7G8mCKxqs3to2GBfHHQwDQYJKoZI hvcNAQELBQADggEBAFaI+2Pfd85SNc4+nj2F5jTQTQwL+N9Q2kwiONd4RD2vnvum HILrMiyEGqMcl9+faHZWsoMpTcljVsRhgC7oCSB5tLjJpgFg/44HVgh0aCfWkDdK Oz2aUSCklrWtEM5BLjDkmBWhLw8d+Wev/4/K8SRCyw3heZAJKyou8QLs1rDesJ0Q 1y7LdM8OYAg1dweKAsni/0bzwh7UTOaXBW0D4EAaR146HinVt5chDp8Vtub8iWpj skgpGFIAgT6fi6gHobEG6BlYjwLOn9tlV78o4ehRWoltMUd4OOx20ktmmEPYHnjq qzpmVevIc+RPZ/cfxdqSkBC5kKdn7jURJbxM/4w= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA19Vqwf875vZ2wsbfQuhe EtIPgjqLGLX7YZKCM48X3/lxi36/bPI6ldRjNfEDQQ1KC9lN8SweKAtzuT/i/i7z DYX2y9ZIoI7mAXFK53GkhjgJhYKHY2LTV2LCPKmH9ipxqGV/JsGWplxXnUXbHv4P uwwVEc+2F4WN9BuSrIk1NLyaCGZg5W/rIY3KMSLuHiUO9Laiq5I5e7nyguLdG9dd T2qLbL+Wb0xruXBmmusGH1e/I5WhdtufUMOk0sx3vluaMi6THEn8VMzrJ5DfpEtl U4jLQyWtmRLLvmOYUtD/14G7BnqP0/ZWatIsw8v7eiSmxNEENfjgCmK4FVZkmPIX qQIDAQAB -----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 336339166066478157894547979429834418951569 . . . . . . . . [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 2019-12-13 08:58:27 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-12 08:58:27 +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 'ai.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 (2160 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 27246475423919120094078594327928397029987861978149693490418753022828557059519039019924984657661769224634082513504840941501491158557577630066093428883038418592325465535563348557946756167568854884894467363624821656577993082864315965878377540758249525456743755496122544570818068713908187014826680966147415351322369153898529338427998028886083416608310793977729961257613460874287824275123638678579955254889993849973671575667124368383016520435383484353312725113025211542213491083160306052141866178971184039859744488890793523151738798347721925469914221267459615191755330068974306560747469378160021024496354059488345044686761 . . . . . . . . . . . . . . . . . . . . [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) ab265ef4d79c11b77e9f07f007a754678c92edef . . . . . . . . . . . . . . . . [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 'ai.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) 00f10077005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016efeb1fc0c0000040300483046022100f07c6465dc039e0a571197b58a177465898b636b0b2032b5f4c27e521bdb4a29022100b855f53477ed8f9d0f0323bc70caf65cd055809a52eba7242a7ca5aaacd7cf9200760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016efeb1fc3300000403004730450221009df25bc84fb94802bcec26359076236bad4b05590d7c97c4feaa54463adcceec022061e3694c4eef7bdab9ef4c36a76e5c4e090aec6f2608ac6ab37b68d8605f1c74 . . . . [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) 005688fb63df77ce5235ce3e9e3d85e634d04d0c0bf8df50da4c2238d778443daf9efba61c82eb322c841aa31c97df9f687656b283294dc96356c461802ee8092079b4b8c9a60160ff8e075608746827d690374a3b3d9a5120a496b5ad10ce412e30e49815a12f0f1df967afff8fcaf12442cb0de17990092b2a2ef102ecd6b0deb09d10d72ecb74cf0e60083577078a02c9e2ff46f3c21ed44ce697056d03e0401a475e3a1e29d5b797210e9f15b6e6fc896a63b24829185200813e9f8ba807a1b106e819588f02ce9fdb6557bf28e1e8515a896d31477838ec76d24b669843d81e78eaab3a6655ebc873e44f67f71fc5da929010b990a767ee351125bc4cff8c