ndtcorrosion.com
Issued by R3
About this certificate
This digital certificate with serial number 03:79:5c:08:f3:f6:8c:18:4d:e5:cc:d1:7c:c0:4b:3c:b8:ba was issued on by Let's Encrypt.
With 2 subject alternative names this certificate can be used to secure multiple fqdn's. 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:
- DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
- Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
- Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)
Certificate Subject
CN=ndtcorrosion.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:79:5c:08:f3:f6:8c:18:4d:e5:cc:d1:7c:c0:4b:3c:b8:baSerial Number (int): 302633359654860393507189085916735278463162
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 6d:0e:1b:25:1b:8c:33:0e:9f:91:86:fa:c3:0c:83:12:72:90:4c:86
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): 7d:29:f5:ab:0b:cd:89:fb:0f:6c:f8:52:85:d8:63:8c:a0:6c:2b:61
Fingerprint (sha256): 4d:6c:f5:f9:37:97:f0:cb:9a:ab:c6:0b:f2:01:47:84:c5:10:20:2d:e2:18:0e:af:11:0d:e0:a3:9e:90:57:e7
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate ndtcorrosion.com
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for ndtcorrosion.com
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
ndtcorrosion.com
www.ndtcorrosion.com
www.ndtcorrosion.com
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ndtcorrosion.com
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ndtcorrosion.com
ndtcorrosion.com
ndtcorrosion.com
ndtcorrosion.com
Certificate
The complete raw certificate details for ndtcorrosion.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFBDCCA+ygAwIBAgISA3lcCPP2jBhN5czRfMBLPLi6MA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMzEyMTkwOTQyMjlaFw0yNDAzMTgwOTQyMjhaMBsxGTAXBgNVBAMT EG5kdGNvcnJvc2lvbi5jb20wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIB AQCztAgl68swdCJBddPf+uxQ/wHNyQxA8xXPCNAnOtIKdcmQQFxQe5ZM+m7jS72m 2+LlcFGofIOEUl1q/9HfMceaVHOhGJqthhe1xZo8jXXO3XshB+/7+DeaaPo9hkKf RCdGWrHShyU1d4iMsm5KeZuTwoHO56pYC5B5dqWJLyY2o4tokT/AMoZM6Dvd8xZc EbS3Pk/Z0XLwnI23yxefgs/Kccb0aGhJQ+gHTGevzNuY00DFwLXfVG3s7or+ciuc INyKASoJGI58M+Fz6RlDuIwt/r1RsvyMATCRYbVEgKLbyeXePLXXCoyLWSgaJTqM xcAb+b3gNSFvXX3bcksv9YurAgMBAAGjggIpMIICJTAOBgNVHQ8BAf8EBAMCBaAw HQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYD VR0OBBYEFG0OGyUbjDMOn5GG+sMMgxJykEyGMB8GA1UdIwQYMBaAFBQusxe3WFbL rlAJQOYfr52LFMLGMFUGCCsGAQUFBwEBBEkwRzAhBggrBgEFBQcwAYYVaHR0cDov L3IzLm8ubGVuY3Iub3JnMCIGCCsGAQUFBzAChhZodHRwOi8vcjMuaS5sZW5jci5v cmcvMDEGA1UdEQQqMCiCEG5kdGNvcnJvc2lvbi5jb22CFHd3dy5uZHRjb3Jyb3Np b24uY29tMBMGA1UdIAQMMAowCAYGZ4EMAQIBMIIBBQYKKwYBBAHWeQIEAgSB9gSB 8wDxAHcAO1N3dT4tuYBOizBbBv5AO2fYT8P0x70ADS1yb+H61BcAAAGMgauA8wAA BAMASDBGAiEAn7UTneBYFBv9HQfc+3A8b9t7MUP5FTvuufkLfldKOY8CIQD6jQUC GSGgkN9xbAWo1Y9M7QuagLXdCslLASEMaAxzegB2AO7N0GTV2xrOxVy3nbTNE6Iy h0Z8vOzew1FIWUZxH7WbAAABjIGrgwQAAAQDAEcwRQIhAPM2LdWLuHWfjX+uxduC y3+lsiVLXVu1ixNR82vjOHa/AiBnZxwYeNEi40esha7ZnFTPB14esqe8iFhtvpvY SM/brTANBgkqhkiG9w0BAQsFAAOCAQEAk6aqQ8mwnwqIdRjzN/RxuskI043xk3iW gYzmN2xNRBq2021PqR1TBSsGPJi4vBiaUOk3Ff71afVfRYBDVnm6p6ECdiD4QhRd gxXhmi5xNwSXY3iJ3kfAolWZ3Qsy1tWXEyWYs7CNKKZUxtFO8lbDi81AIC+Q5YRt SzkxLQdj1MWfV7LKotuEMrWoBrC1AqA4kPfY4El78WXIUHof83BYtWEjBzv3HFRn p78kjTZP7stpf3SomltwfsnSyXQIqM/me6nOtdyj13xG2O2uqN7BhsVmj14VsYcB bg3V8GCF6cBdn+tVmo/LQI+6bpB+TIBzBTmfsIM4m0ovZj/GQTxHyA== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAs7QIJevLMHQiQXXT3/rs UP8BzckMQPMVzwjQJzrSCnXJkEBcUHuWTPpu40u9ptvi5XBRqHyDhFJdav/R3zHH mlRzoRiarYYXtcWaPI11zt17IQfv+/g3mmj6PYZCn0QnRlqx0oclNXeIjLJuSnmb k8KBzueqWAuQeXaliS8mNqOLaJE/wDKGTOg73fMWXBG0tz5P2dFy8JyNt8sXn4LP ynHG9GhoSUPoB0xnr8zbmNNAxcC131Rt7O6K/nIrnCDcigEqCRiOfDPhc+kZQ7iM Lf69UbL8jAEwkWG1RICi28nl3jy11wqMi1koGiU6jMXAG/m94DUhb11923JLL/WL qwIDAQAB -----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 302633359654860393507189085916735278463162 . . . . . . . . [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 'R3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-19 09:42:29 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-18 09:42:28 +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 'ndtcorrosion.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 (2160 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 22685433592385978087023559208573150603509220429196271760102011961896670166825658914847331543843984084056066997749862626382562312578821331310548408243965264289896097138198143853244046763457340902564371880900177843851258438187435022472728558497921116495697246556757569950784234280494700995253035296847883857299815474868249075469926209328858666243509207635603536256088315061816797093189087336831672768981219893491440389520178523746350940191906497249857667099342968108416993844903773056716736300565758060019219283484833138590328853460204585661766785748608746092675205161045867693889068231510350440655621874615415416916907 . . . . . . . . . . . . . . . . . . . . [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) 6d0e1b251b8c330e9f9186fac30c831272904c86 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (42 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ndtcorrosion.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.ndtcorrosion.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 (12 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 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (246 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes) 00f10077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018c81ab80f300000403004830460221009fb5139de058141bfd1d07dcfb703c6fdb7b3143f9153beeb9f90b7e574a398f022100fa8d05021921a090df716c05a8d58f4ced0b9a80b5dd0ac94b01210c680c737a007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018c81ab83040000040300473045022100f3362dd58bb8759f8d7faec5db82cb7fa5b2254b5d5bb58b1351f36be33876bf022067671c1878d122e347ac85aed99c54cf075e1eb2a7bc88586dbe9bd848cfdbad . . . . [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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