duzco.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:bd:02:aa:28:f4:3e:93:61:42:15:c6:37:78:9c:18:55:70 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=duzco.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:bd:02:aa:28:f4:3e:93:61:42:15:c6:37:78:9c:18:55:70Serial Number (int): 325653767120443052328432482135894855800176
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: ac:aa:42:55:dd:d6:97:83:1f:b2:7b:81:1f:42:2d:46:1d:ce:75:c7
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): a8:ee:45:6a:99:2e:e7:fa:d0:48:65:ae:7a:ef:53:a4:e7:a6:ab:4c
Fingerprint (sha256): 6f:32:2e:72:cd:44:40:ba:b3:9c:91:bd:d1:59:a7:18:96:2d:db:6c:30:9a:dd:1b:33:f9:fc:13:31:fc:29:98
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate duzco.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for duzco.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
duzco.com
Other certificates including the domain name duzco.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for duzco.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGSjCCBTKgAwIBAgISA70Cqij0PpNhQhXGN3icGFVwMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAyMTYxNDE2NThaFw0y MDA1MTYxNDE2NThaMBQxEjAQBgNVBAMTCWR1emNvLmNvbTCCAiIwDQYJKoZIhvcN AQEBBQADggIPADCCAgoCggIBAMEegjK3xf1bYK4pPk69YneodtamWBgeRWLussy3 7XZypdVDzTXuf8EN3mo0Bmo1OAJW/aPQ3e5GsF8FiYxkEieZURkwYcTqGxVRxvKB cDxxqNsXmZL1pjO+6L/Ffp37WouyxfHk6f6R2q2bjwvL2KTrv6gaD9VU3pf+clJ4 BbytTM67TBmsbvZjTGVTWpqw3/u3MQ/x5xfGEDcxejceApl5U1+q8X5KqQTbpqgU 4bKX3mA4fX5CK7bGC12P/TbD4EARG1ucUf95iELv1XHZFjGB+kPSp9tvGnKPSEQv w+awPe1o3E7Vhq7mshK66BNTQgSYk7ndoZSR8Yv9Lzb0kllOCuHCZOM2cs+8dYED DwykainyVJCmM75a9gaTvjhyustMqRthwZBqQJowbrPqrIofbhMvqdjX2KXm++lV fD8m85hBvPZ6FJxpEBWHtMH5+u2F62VIxA8VGDA0mI3CUEW9ml5v53u0g8C8V8Rr T7ZHBiH8GNhWeayaTfIFk5z4rCRfzcN00UDS5nmuEmYFg0j4QjhpQcDOy4Lxnd4/ jnDbHbb/NJJDaYRF1XHOoGXUji1WQM84PJ0ZlT9YTQmWubFWr+DN29pEgRyhcw84 JCfDmAno3TmB5UyqpTuCq1daXTtd9m2LBYxdLXuvwAgTlu1eBkcY/687x/oXYbIl 3SAFAgMBAAGjggJeMIICWjAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYB BQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFKyqQlXd1peD H7J7gR9CLUYdznXHMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8G CCsGAQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxl dHNlbmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxl dHNlbmNyeXB0Lm9yZy8wFAYDVR0RBA0wC4IJZHV6Y28uY29tMEwGA1UdIARFMEMw CAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9j cHMubGV0c2VuY3J5cHQub3JnMIIBBAYKKwYBBAHWeQIEAgSB9QSB8gDwAHUAB7dc G+V9aP/xsMYdIxXHuuZXfFeUt2ruvGE6GmnTohwAAAFwTpL0GgAABAMARjBEAiBJ qVx5Ph9qls/aOKBJaCsqEnbm+iMtnAwnxyUNq5WmrQIgPWxfGGhYcAdJMsAAzCCz uNo+ak3LTJOwGWs4ajksfxoAdwBvU3asMfAxGdiZAKRRFf93FRwR2QLBACkGjbII mjfZEwAAAXBOkvSYAAAEAwBIMEYCIQCW34uVw5QacV6+raAQL12AAWGUsbeBaFpz 4KAGjIBCwQIhAPksFUF5MTMvZAXNk8kD5EetwTH6eem++I/ZwzQDdKIvMA0GCSqG SIb3DQEBCwUAA4IBAQCKW65SG1dZlL7PtSqSF/U41yt0pgULnvqN3lOkAxU+r8NH zc1EckIs5FDrxGFR2i9k0O8Hms+ryBD972udnWic5PvO/REv9Kwa1AdpKqAX7Sf/ uOWX68z+AE0VMzDamq8M4kY8rGdugA6UuMIjufsbuyxyUDY6ScqEHZV3hD1SACDD oRo6hFuLye9O1cDSnk3Lw2CLAR5BdmtTXzeUkNTWBjf/b283NviPGWCW5FGXUg5X gwv6hziKOmtg4mfhl7nnNDQblQI9nj76Lg9PnegR/wtkJsZTwQEQ2V1SUA66Ia3g RoO3iMB3HacRctHuornKq9jsHz1UH0V5hIbQTQ7Z -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAwR6CMrfF/Vtgrik+Tr1i d6h21qZYGB5FYu6yzLftdnKl1UPNNe5/wQ3eajQGajU4Alb9o9Dd7kawXwWJjGQS J5lRGTBhxOobFVHG8oFwPHGo2xeZkvWmM77ov8V+nftai7LF8eTp/pHarZuPC8vY pOu/qBoP1VTel/5yUngFvK1MzrtMGaxu9mNMZVNamrDf+7cxD/HnF8YQNzF6Nx4C mXlTX6rxfkqpBNumqBThspfeYDh9fkIrtsYLXY/9NsPgQBEbW5xR/3mIQu/VcdkW MYH6Q9Kn228aco9IRC/D5rA97WjcTtWGruayErroE1NCBJiTud2hlJHxi/0vNvSS WU4K4cJk4zZyz7x1gQMPDKRqKfJUkKYzvlr2BpO+OHK6y0ypG2HBkGpAmjBus+qs ih9uEy+p2NfYpeb76VV8PybzmEG89noUnGkQFYe0wfn67YXrZUjEDxUYMDSYjcJQ Rb2aXm/ne7SDwLxXxGtPtkcGIfwY2FZ5rJpN8gWTnPisJF/Nw3TRQNLmea4SZgWD SPhCOGlBwM7LgvGd3j+OcNsdtv80kkNphEXVcc6gZdSOLVZAzzg8nRmVP1hNCZa5 sVav4M3b2kSBHKFzDzgkJ8OYCejdOYHlTKqlO4KrV1pdO132bYsFjF0te6/ACBOW 7V4GRxj/rzvH+hdhsiXdIAUCAwEAAQ== -----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 325653767120443052328432482135894855800176 . . . . . . . . [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 2020-02-16 14:16:58 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-16 14:16:58 +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 'duzco.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 787857493305629439675344809423928356683218043880593585145142874221973504593643847758555327614476163074799507761451798650156523733798597668666278116544366963209307482972675393800051758190818356699470723120967257717444355587180131291739050080956645477875618868077109350634242987870432550299911538705782511057959539142291329033959484693552486418001572620557476129479570218825882177241837525810298614438666488513480429091311227254002124055502910298255218691377193760604999533062765566873348193931269528189661893352106347214330081389917847327735365167677409826052570315965442491382221490188550481729292648108343473211178780185786752921950341577471485540797358266873163383375801404843978897852553404837163941694897637435671588388909538578239950280948706797092093017332548103987604317031267818904314490774682190337794859483862255897490483407910473938671716178241492489009228671147518149055449541038550382023992722239904674001589990151109954262462935190394194448072395390931633943096103536655206849613189139573566180190558934425466246102934104219588499093856825092681422472678550457688155533284670588396661155249520257116825708151674754997934477216606960275864338987636753648220966194972165765373668252201447857582947679213304366457188851717 . . . . . . . . . . . . . . . . . . . . [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) acaa4255ddd697831fb27b811f422d461dce75c7 . . . . . . . . . . . . . . . . [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 'duzco.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) 00f000750007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c000001704e92f41a0000040300463044022049a95c793e1f6a96cfda38a049682b2a1276e6fa232d9c0c27c7250dab95a6ad02203d6c5f18685870074932c000cc20b3b8da3e6a4dcb4c93b0196b386a392c7f1a0077006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d913000001704e92f498000004030048304602210096df8b95c3941a715ebeada0102f5d80016194b1b781685a73e0a0068c8042c1022100f92c15417931332f6405cd93c903e447adc131fa79e9bef88fd9c3340374a22f . . . . [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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