umodel.microduino.cn
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:1e:b6:04:df:f3:32:4f:a9:42:c0:49:e0:82:ac:67:ee:40 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=umodel.microduino.cn
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:1e:b6:04:df:f3:32:4f:a9:42:c0:49:e0:82:ac:67:ee:40Serial Number (int): 358899559541334784978806675191064588447296
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 27:c2:a5:72:82:ad:a6:be:a5:e3:61:dc:8c:c6:d9:26:2d:67:c4:61
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 27:1f:be:8c:8a:f3:16:0e:f2:25:7f:bf:1d:31:04:32:41:cb:b3:4b
Fingerprint (sha256): 17:b4:6f:32:02:41:5b:b3:c0:3d:ab:50:5c:51:dd:f5:a4:6a:40:d4:47:b0:a3:a9:0e:3e:ff:f4:a6:cd:ce:cb
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate umodel.microduino.cn
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for umodel.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
umodel.microduino.cn
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Certificate
The complete raw certificate details for umodel.microduino.cn in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGYDCCBUigAwIBAgISBB62BN/zMk+pQsBJ4IKsZ+5AMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA0MjkxNTA2NDVaFw0x OTA3MjgxNTA2NDVaMB8xHTAbBgNVBAMTFHVtb2RlbC5taWNyb2R1aW5vLmNuMIIC IjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA0plny0MLR38TYcHYgv2lZNot AFHY9PRKzzpu87fWpUZwBSppNm5z5Hy/V926Nwq4/9xfLDBl3rPTanUsNxMwuVnH nRqMT+UssX+WBMkfK12reQiNDCmYVKGhWmud43NNd6X8qQKzjD420nCPzX2UAJdf nvFyNmyHDf3I35aJRxF9MXz7cj2rIwIgaw67F3MrcVkTvNBs78mbOv9/gnzYrDIJ KbTt8h/SB2QGhg6acMQh/WuCjSaI11lFF044y3GVt0cJlF/f2L/l2Od4/9SkvCre dyJGrto3klyp24d8yuyl+ZSLR8aWnHC4SCAIUAN54M/84CD0YOIdztieq4xIXb59 wYQ7s6gPeyEtoN6sbAcREf0eWqh8q9NDNVjZEocJLS8CNcx55HR2SsHCTBUpoS8N x3AzjaZtH//ScX0IEfMVGVEIOcnLya1MrE2Yva3WTuabGYgJWxzunm7Xt1pZG3lx v5F4FxEfG0NzKXuwlaKgdFXD/lC80dUENWE5ATTBNbqlBInL4bLcPLpJjCeAGmur 7FwMqBAwthphKRUxNZVVtAYydR1CZgOP9fYEHPCaWgUMVQrf1rbSvxYvU2qpqfkM W8lTr/nglRUjFrIuQS9zCtya7+YF2sezPlr+NpWInh/z+8O+xj18NJ5O4OleDsff wZf9mCquVftLn+AfUqsCAwEAAaOCAmkwggJlMA4GA1UdDwEB/wQEAwIFoDAdBgNV HSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4E FgQUJ8KlcoKtpr6l42HcjMbZJi1nxGEwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3 pkVl7/Oo7KEwbwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2Nz cC5pbnQteDMubGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2Vy dC5pbnQteDMubGV0c2VuY3J5cHQub3JnLzAfBgNVHREEGDAWghR1bW9kZWwubWlj cm9kdWluby5jbjBMBgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAo MCYGCCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQQGCisG AQQB1nkCBAIEgfUEgfIA8AB2AHR+2oMxrTMQkSGcziVPQnDCv/1eQiAIxjc1eeYQ e8xWAAABamnZPG4AAAQDAEcwRQIgdWO4DWgikED/qn291YDIP2lJyAIBl6de4ty3 y9G9pUcCIQCgHScX2C/mERLZIr3ohVMPPY9P6G3n9uBA+oMjevz9MgB2ACk8UZZU yDlluqpQ/FgH1Ldvv1h6KXLcpMMM9OVFR/R4AAABamnZPGgAAAQDAEcwRQIgR33/ r0585+PUVpPWW78cnDrKrK41s5hCwPkzgAyaUQgCIQDtA6y+QBHKYKQdooBJOXrt 8vK06dlfsbIbXwEjXW+pYTANBgkqhkiG9w0BAQsFAAOCAQEAGsuXU8vlxM46/O+4 q40RkTLgyx/GawKKuH6ppwloepRRE9Hrv2iAMd6GL0KRDEiSl0EuPdUTmB+Cb+sC eiJAbRp2KWx3LVvGxsyFRMA0PthqjMPVY1wrGgH1J1NJuucTb6BPlbRa2R/QIacU TptCaCfsW4MFWPN/lchZSy8hp28Tq2GssRy6rxYxceiilGJOGomBR1kRdYcTaWQF sU7fDJt58yETMp2VFVUX1sxZiSQQWWGmM2tguijXRP5/6fX9PSZLY7ZfMU6WDZwn AMckbSpGY+HQRTPOesSWw1vZS2QF12keO4ADxxamY2WNKDG9V5vW2zkVRHdRUJaL rR/Axw== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA0plny0MLR38TYcHYgv2l ZNotAFHY9PRKzzpu87fWpUZwBSppNm5z5Hy/V926Nwq4/9xfLDBl3rPTanUsNxMw uVnHnRqMT+UssX+WBMkfK12reQiNDCmYVKGhWmud43NNd6X8qQKzjD420nCPzX2U AJdfnvFyNmyHDf3I35aJRxF9MXz7cj2rIwIgaw67F3MrcVkTvNBs78mbOv9/gnzY rDIJKbTt8h/SB2QGhg6acMQh/WuCjSaI11lFF044y3GVt0cJlF/f2L/l2Od4/9Sk vCredyJGrto3klyp24d8yuyl+ZSLR8aWnHC4SCAIUAN54M/84CD0YOIdztieq4xI Xb59wYQ7s6gPeyEtoN6sbAcREf0eWqh8q9NDNVjZEocJLS8CNcx55HR2SsHCTBUp oS8Nx3AzjaZtH//ScX0IEfMVGVEIOcnLya1MrE2Yva3WTuabGYgJWxzunm7Xt1pZ G3lxv5F4FxEfG0NzKXuwlaKgdFXD/lC80dUENWE5ATTBNbqlBInL4bLcPLpJjCeA Gmur7FwMqBAwthphKRUxNZVVtAYydR1CZgOP9fYEHPCaWgUMVQrf1rbSvxYvU2qp qfkMW8lTr/nglRUjFrIuQS9zCtya7+YF2sezPlr+NpWInh/z+8O+xj18NJ5O4Ole DsffwZf9mCquVftLn+AfUqsCAwEAAQ== -----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 358899559541334784978806675191064588447296 . . . . . . . . [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 2019-04-29 15:06:45 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-07-28 15:06:45 +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 'umodel.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 859169940279694757985002942106608334982797725241758950585706322601110692454317914047076988840522533661635106360644117020755378554870023531702447072065610691144251264944660510986762054747919055054812967108928472172237284425676859563576885857835412935219392025827088724046260628003080498817555848815019767006636993866811848283153442382908406269686964128882424647195519126647946314559164781984474801534740325038293966380702307172645591045355028557982681526036580126636548457285840700449504392575409343306158061258423061669032912606186775260854294917477281492509508262806407216780353060055846797978948153781251850403405150367873660091812539152623218275205750152948845000231150489492801319017754223748412177876868632868054572071600424969455710078038584906662530637743634118019223465627146368773616377519086292817149211527375332364759346461584219002003375740499784093389070259429382830369516968082256574427618689159499709861555798956143589810673326910679152571310469566912483793557423912336870569466242988874815472236612588272658102315383232092920896320827542371273972768493302137283514444661183743774882245343843944956331764531907970099761233135672878340804099010727428488241420440653561705973121259042404671730395944534728389074511418027 . . . . . . . . . . . . . . . . . . . . [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) 27c2a57282ada6bea5e361dc8cc6d9262d67c461 . . . . . . . . . . . . . . . . [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 (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'umodel.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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007600747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016a69d93c6e000004030047304502207563b80d68229040ffaa7dbdd580c83f6949c8020197a75ee2dcb7cbd1bda547022100a01d2717d82fe61112d922bde885530f3d8f4fe86de7f6e040fa83237afcfd32007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016a69d93c6800000403004730450220477dffaf4e7ce7e3d45693d65bbf1c9c3acaacae35b39842c0f933800c9a5108022100ed03acbe4011ca60a41da28049397aedf2f2b4e9d95fb1b21b5f01235d6fa961 . . . . [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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