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:dfSerial 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.orgCheck 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----- MIIGSjCCBTKgAwIBAgISA7S+e5kWaOaqh93mASJQ1l/fMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEwMTMxMDIxNDRaFw0y MDAxMTExMDIxNDRaMBQxEjAQBgNVBAMTCWR0dWNvLmNvbTCCAiIwDQYJKoZIhvcN AQEBBQADggIPADCCAgoCggIBANUj5OKujSaU/gmNDLAh3uorjv6qPWmAnwh0/n61 BgH8ElefiOFYyKbrF/ikOypjs9AaBSWVy2ABBPdW2KjmZWBcoCZO+jJ1LwQORbQd pA8ZApVoyMntgIw9E8jNgv34NMUm6Wd9rpSVxFQAuDHE6wNHlYrFJ/5bkhSCp7gA ouKaa2dSx9yFDM9/Ed5Spo/393X0QC5O56zy194LgQFqMgl8U4yRs3arV3IStI+s RU20yd9gWJJmup7ZiFhGyhsdeB3P5YGoVG7loPwI5Lv35CeQh3h0gUzu9SpIVCUL vXLDzNI4/JRcqaQEP5tp5wfIpXQ+4hJCGvLvCKR8HJ7edm3TlXLSRMA9hOoDyhxD gvHu8iKfqPUxZZpsVH7HN/yyg1wW9iFBWjgpSU80laMKo/5NA+JlSvSVGR59CejA Leyp7UzcVvisX7dtAd0XqY8BPdL/S7d/jNyc0O7VLJGTU9kW+7PHZJ0nAPZaCZvT 3RpUJXNsaj0Q8auoxoYgIIL0jOGwaY1Jz17v3Smz4sZkBgO2tsyoEFYxzdmqA9Q5 6bchVCJKjUa71vD104szuT0aoMUyFj79GM/7JlrmfCipqB9umgau/yE6kNGqyI9P fEm73Lk3Vq1oo1EPJ7pjeWPBN92ThxyF/mWm3hZYl5+BYFi7Cl08Agk9iRP3vjZk RdxZAgMBAAGjggJeMIICWjAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYB BQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFEmR0HP/gpGU YwI/89kD5jF8HdqRMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8G CCsGAQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxl dHNlbmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxl dHNlbmNyeXB0Lm9yZy8wFAYDVR0RBA0wC4IJZHR1Y28uY29tMEwGA1UdIARFMEMw CAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9j cHMubGV0c2VuY3J5cHQub3JnMIIBBAYKKwYBBAHWeQIEAgSB9QSB8gDwAHYAXqdz +d9WwOe1Nkh90EngMnqRmgyEoRIShBh1loFxRVgAAAFtxNpPkgAABAMARzBFAiEA mxNc2Ih+BWPFvRhYjqL7vwOd2rd9PaNWpCXmoYmXg3MCIFIAMuZCKticMpwr9/SY m785LJ8BA6r0O+6Ejuk/2Vu2AHYAKTxRllTIOWW6qlD8WAfUt2+/WHopctykwwz0 5UVH9HgAAAFtxNpPjgAABAMARzBFAiAA7zd0SO+c+H1F8nhhOtPqpARieeT6GP6i 5lIeBL7SxwIhAJxSgeX5NwVqw/VuEyQ3J4BMLUryIkanASvk6MkyE6p0MA0GCSqG SIb3DQEBCwUAA4IBAQB7vhZdW+x2OtWMivO8TseD2ADxcxLjPGWCnLxYGU9GW86z ZleSlQhnxXkV4gea+bk9ggP+VNN8RJsEd4Jg2BG5Dr2n61yjao4x4Lbmtrthl1Yl jDajZq9UQeBT9C2wcCI5ZE+4Oe7m//2mFg9xQ3uzvCodCvFKAhhsXUbdpk8m9V78 e/+AQqu4txC8173AORY2pusZ3szcFCPTjlghOphrnXbSUaFXmPstABawC4o37OXB skTBCUkVoBFjGaW+NceNreE5mj5BiZT2VKAGVvnP6np+QyDQHGTKdza/l/B7W/Aj xEEdgypzV51V7m6USZ09xdBtxOhsAjtk+wPHisWg -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA1SPk4q6NJpT+CY0MsCHe 6iuO/qo9aYCfCHT+frUGAfwSV5+I4VjIpusX+KQ7KmOz0BoFJZXLYAEE91bYqOZl YFygJk76MnUvBA5FtB2kDxkClWjIye2AjD0TyM2C/fg0xSbpZ32ulJXEVAC4McTr A0eVisUn/luSFIKnuACi4pprZ1LH3IUMz38R3lKmj/f3dfRALk7nrPLX3guBAWoy CXxTjJGzdqtXchK0j6xFTbTJ32BYkma6ntmIWEbKGx14Hc/lgahUbuWg/Ajku/fk J5CHeHSBTO71KkhUJQu9csPM0jj8lFyppAQ/m2nnB8ildD7iEkIa8u8IpHwcnt52 bdOVctJEwD2E6gPKHEOC8e7yIp+o9TFlmmxUfsc3/LKDXBb2IUFaOClJTzSVowqj /k0D4mVK9JUZHn0J6MAt7KntTNxW+Kxft20B3RepjwE90v9Lt3+M3JzQ7tUskZNT 2Rb7s8dknScA9loJm9PdGlQlc2xqPRDxq6jGhiAggvSM4bBpjUnPXu/dKbPixmQG A7a2zKgQVjHN2aoD1DnptyFUIkqNRrvW8PXTizO5PRqgxTIWPv0Yz/smWuZ8KKmo H26aBq7/ITqQ0arIj098SbvcuTdWrWijUQ8numN5Y8E33ZOHHIX+ZabeFliXn4Fg WLsKXTwCCT2JE/e+NmRF3FkCAwEAAQ== -----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) 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