ndtcorrosion.com

Issued by R3

About this certificate

This digital certificate with serial number 03:94:ab:a6:f8:a4:e2:fd:49:24:d2:58:77:5d:61:b2:9f:06 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=ndtcorrosion.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:94:ab:a6:f8:a4:e2:fd:49:24:d2:58:77:5d:61:b2:9f:06
Serial Number (int): 311926813051238620101921623500097313742598
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: a3:61:62:0a:79:db:67:b3:78:a4:61:8d:20:18:2e:33:6b:79:ff:34
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 85:88:08:2f:2d:9a:c9:ad:2f:28:8f:43:a3:d0:68:a5:c3:98:04:61
Fingerprint (sha256): fb:a2:ac:e9:6a:c1:63:36:89:dd:58:20:1f:24:1f:ef:d1:7a:cf:50:73:18:41:17:87:4c:32:6b:fc:88:f8:4b

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate ndtcorrosion.com

1

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

Other certificates including the domain name ndtcorrosion.com

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ndtcorrosion.com
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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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAziqDygulEHaNCz6kl0pX
zXq6dbG2pkdfhbngkJlyMScouQZdDE7ztOEB+kPu1wolx3aA1SgV5d+P5hT0pwnP
tJwOA4uDrSzzV3kHzZhmBB87C3V+e1Sy4fMWOHzhsjtLbsTB/sSXxK6TfUt0B3wx
gP9kVPa60XM2rgY2qL6gRuhuYscBNgA0cjNJcnC6IU2ijnwVIJQ+RSpKI43gPJ+T
fwxagpo4JQmK9hn31QwLKvBFy5IDbxQidXdHuYver2PuHhEWQ2Vbxk2DmXLNRU/9
uMjBkhoAwlLVaKVE0KiHZfmajQZpLAnmWIxv4XCGf2Md0ZnL7+HgKdOsgk8E8aBn
yQIDAQAB
-----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 311926813051238620101921623500097313742598
 . . . . . . . . [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 2023-09-04 05:40:08 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-03 05:40:07 +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 26026055653105866969898861054355867347388648290739343176514818953128493368399800940258081086964280772545331662311017185357631625136954588785092437255749203319069593922078049614837122266922241870942035776114934463548303476025300393058464354135941114674647189760820435949779729802156909836563627876806139855629594901907167099373420444466120291574188232543182034002510406184661462536562350769778497485715836944720914267498037144174552962144369309047416600994206798059250467056163863052172135377224536759176451906972569899605964843391874337428399602170920720927800338360428363155177257814874204236953528577962883388827593
 . . . . . . . . . . . . . . . . . . . . [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)
							a361620a79db67b378a4618d20182e336b79ff34
 . . . . . . . . . . . . . . . . [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 (20 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00077007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018a5eeb8795000004030048304602210099e02b55fae01952e64fd47e9b28482cb77c2e419c5d9b94d3f09da9cb9efbbe022100ae9c582a23946a895285256753ba55fb7035bb67a742acdcd6c1b6ca7543f89f007500adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a0000018a5eeb87c20000040300463044022010368bb089988638d5c23c7bfb5cff3c2fa7564c92c2bec84e70840ef64067c902205bacc390cdf1f63a6f56c13b1165d7e2c30fc57a500c67e24a540611a54239af
 . . . . [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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