ndtcorrosion.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:af:73:d1:67:da:7c:d6:36:9a:52:61:43:70:f6:1a:a3:78 was issued on by Let's Encrypt.

With 3 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

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:af:73:d1:67:da:7c:d6:36:9a:52:61:43:70:f6:1a:a3:78
Serial Number (int): 321040220522402233863750003837195601486712
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 8d:b1:8e:41:ec:fb:00:93:57:b6:ec:6f:a4:7b:5c:c3:06:26:27:fe
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 81:87:9f:29:67:e0:b4:a7:36:0a:c3:7d:ae:7a:ee:20:35:32:fa:5e
Fingerprint (sha256): b1:61:f5:f6:72:27:91:25:98:c4:ed:05:f6:83:56:da:73:e9:32:95:d5:91:2e:9c:35:f0:2e:32:24:1b:4a:1a

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 ndtcorrosion.com

3

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

mail.ndtcorrosion.com
ndtcorrosion.com
www.ndtcorrosion.com

Other certificates including the domain name ndtcorrosion.com

(limited to 100 certificates)
ndtcorrosion.com
ndtcorrosion.com
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ndtcorrosion.com
ndtcorrosion.com
ndtcorrosion.com
ndtcorrosion.com
ndtcorrosion.com
ndtcorrosion.com
ndtcorrosion.com
ndtcorrosion.com
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-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA5kwUgKw6iDlis9gm2BZH
Lep1uxr8ef7qFp4OgaITbMy/gncDhtd+Wx3BJjygu7kF9V5IZtqwk1Ab1Qf0ZFFN
yFEmImZ4goWN3+62A4Sbqp4m0Amls5CzFiAGgRGBJLj8avvmE//Nhje7rLW2gm+6
dKONAKS5wH072seudOFpu5yJnNgXXQCvhZK4DNbSx3Pen5LHhkn4SrDKFpCzOpuP
P56p2r6K/JxZ2FTk5LMeI9SmF7vfkWLb/RWVibB7gTR4+GGfEgH5SU8mhqHj++Bi
tdZSS3DSvgAnRAenCIutDTwgB2folHvyabeVR/PDfEC+mbJFOJzG7nv8RRmcWywa
HwIDAQAB
-----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 321040220522402233863750003837195601486712
 . . . . . . . . [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 2019-08-03 16:19:26 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-11-01 16:19:26 +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 29072326632037626340675726153860938897453835913953757347647045732775663773351362101288500670881472265453934604821672554807511190924607543116243349387600138489058816814241853351909220024637988045957245459980681626235368327750833229408660055153638879219842377060399738720828866090851331306601464325270007397567109372855554187340621919229556753910110933829894116241589983152504601233813294282103245751310430167731266001969403071952145606390580294915908194432877027695254829714728440721240338604954827829126605395547397501656549236622711572566698900673266080962222355649566283148794966190832825249552726072536922514528799
 . . . . . . . . . . . . . . . . . . . . [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)
							8db18e41ecfb009357b6ec6fa47b5cc3062627fe
 . . . . . . . . . . . . . . . . [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 (65 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.ndtcorrosion.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 (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)
							00f1007600747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016c587e46080000040300473045022100dc79b3cee39eb57df79b210fe1331570b66563d179b204185db317bbb6228cea02200d56e9d91ce4d19315eb89602f4105742e9cf4fba79bb9b6fdf1abebea5d98af00770063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016c587e460700000403004830460221009eaa9848542b0340c986da921e9276d5ddc6fec8607cc3f962923d2ebc814c22022100fd3c7a3c5bd259628d2f58f12073fe0659241c82b346afb072dba46285ccecf4
 . . . . [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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