dtuco.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:b4:be:7b:99:16:68:e6:aa:87:dd:e6:01:22:50:d6:5f:df 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=dtuco.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:b4:be:7b:99:16:68:e6:aa:87:dd:e6:01:22:50:d6:5f:df
Serial Number (int): 322840878917746551396217083987227395383263
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 49:91:d0:73:ff:82:91:94:63:02:3f:f3:d9:03:e6:31:7c:1d:da:91
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): f7:ca:6d:f6:56:b5:f4:f0:74:0c:a5:85:ec:a6:b7:a0:fa:d0:da:6b
Fingerprint (sha256): d4:a5:ec:dd:82:8d:60:3a:4d:fd:86:6c:0a:c4:fa:1b:25:4d:d2:84:b6:b3:48:5c:a6:52:da:a5:df:9a:69:53

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 dtuco.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for dtuco.com

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

dtuco.com

Other certificates including the domain name dtuco.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for dtuco.com in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 322840878917746551396217083987227395383263
 . . . . . . . . [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 2019-10-13 10:21:44 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-11 10:21:44 +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 'dtuco.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 869536198544617082953612701676703197671291208027494291392304933149487257496906248427527049100259614929300505235548676340538054432742760589969905376112659305979856858265851899220933056707308937494098914072874778496671119290168322930937574414493450697934311777196026225824908444263471159706624461674796064222041996696947219432187498252484881041512996309385901726079070261725147359781477734813549849010071507127207593252054780464145677930790135236103387299338169192204257511613144830387756014384418729343001046682487705645236428827471385780360552778325387323647423801044572491227649021258406305677881057380715500926846952663454887877386199484424691331268138392111887289479146344070311039452256871418272673918005341620120854974708488400132330569084208835103195986756588384482276103756682982453192210832896192078066847062997336980797565920194788755389487421534466093980418451356447200138368637491951333009848093963061766288711853178418397399852329418968113584062893385611329951658274920838880361742123688145299477834348929199186318918827423961753655171145740190180356321861299392168701260801934085914479474212751481935769969988473735202385662205664130868139791689608479519200717419461978314819447706199161849157437161777795730755427884121
 . . . . . . . . . . . . . . . . . . . . [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)
							4991d073ff82919463023ff3d903e6317c1dda91
 . . . . . . . . . . . . . . . . [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 (13 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'dtuco.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016dc4da4f9200000403004730450221009b135cd8887e0563c5bd18588ea2fbbf039ddab77d3da356a425e6a1899783730220520032e6422ad89c329c2bf7f4989bbf392c9f0103aaf43bee848ee93fd95bb6007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016dc4da4f8e0000040300473045022000ef377448ef9cf87d45f278613ad3eaa4046279e4fa18fea2e6521e04bed2c70221009c5281e5f937056ac3f56e13243727804c2d4af22246a7012be4e8c93213aa74
 . . . . [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)
		007bbe165d5bec763ad58c8af3bc4ec783d800f17312e33c65829cbc58194f465bceb3665792950867c57915e2079af9b93d8203fe54d37c449b04778260d811b90ebda7eb5ca36a8e31e0b6e6b6bb619756258c36a366af5441e053f42db0702239644fb839eee6fffda6160f71437bb3bc2a1d0af14a02186c5d46dda64f26f55efc7bff8042abb8b710bcd7bdc0391636a6eb19deccdc1423d38e58213a986b9d76d251a15798fb2d0016b00b8a37ece5c1b244c1094915a0116319a5be35c78dade1399a3e418994f654a00656f9cfea7a7e4320d01c64ca7736bf97f07b5bf023c4411d832a73579d55ee6e94499d3dc5d06dc4e86c023b64fb03c78ac5a0