www.tavvan.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:79:0e:23:d2:dd:c0:89:a2:1e:c8:a5:68:fc:f5:f0:70:a2 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=www.tavvan.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:79:0e:23:d2:dd:c0:89:a2:1e:c8:a5:68:fc:f5:f0:70:a2Serial Number (int): 302529819391920359752945101592253684543650
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 4a:98:b2:60:93:eb:94:a9:72:3c:cb:80:48:2a:89:78:6e:e2:0f:22
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 83:6f:09:3e:73:73:c2:71:67:ec:ce:68:48:c2:d9:75:1c:00:22:63
Fingerprint (sha256): 21:25:90:8f:e3:bb:da:0c:68:e7:bb:91:4b:0f:45:71:da:b4:60:d6:ed:2f:3a:8b:e4:8d:34:96:87:46:a6:6e
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate www.tavvan.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.tavvan.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
www.tavvan.com
Other certificates including the domain name tavvan.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.tavvan.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGUzCCBTugAwIBAgISA3kOI9LdwImiHsilaPz18HCiMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEyMTkxNDUyNTNaFw0y MDAzMTgxNDUyNTNaMBkxFzAVBgNVBAMTDnd3dy50YXZ2YW4uY29tMIICIjANBgkq hkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAwNska5HWlbsw8zzhB5p3cIyHsGsMwoqx ZywhrYi2y89H43+xWr3Hm6bfdkCyfk2k8SZ4c3Y4Z8DjUXjdG57h+ygsmvVTurn8 AaesGFdiwhcdFfB7dNW6WddvFZa7yy493AtI1xVobrjiLaJ0XDQRClIadp/g+/wX 5SfJ0dt+VV/piPZEGTyLpSz5ds67BP7SmtJHLWgwFESmWo4uV0P9IpqsSJYjmyyp xTlxmTYQ/j3VGE1DEc+fjbhCyWvc8XtXQhbLsQy+6WeCf9twek4quYlKfK91KkvU spoC8hHNqIZxCc3pSEVODa11ZSM2cxFR0ZO7rhPZn/uV75mj02YrzWKjDb2oFtf/ N1+tU0W5fPTwpMXlAfMRj8eWz26ciAEvWJ0eSFjHby03Q6cWamhQMs4/Y7d371DJ fmcCK2nuOZ7lRYfIJQ+eJu3pj9D53HLgu1YPYyrK6UN7DjGeSZawmFcNV17Ko+3b OUSgP4ES9dLkSb+sP+0AXJjMXFzzQkcRghUeMwBbvmc8Zcyu+tGyJYEO67oEym9/ 3ju32lA9Q/sAu6rQrqbzOsK4E0nJdrtWRcIFww9y0wqg/SQXCy/O8lkbIUROBlVS +BiV/GxBn9GgmOil0fjBa7aUuzYag9qQQz1TACQVeBVMUQ9kWoKV0R+72sBS51NI nAY9xkzApPMCAwEAAaOCAmIwggJeMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAU BggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUSpiy YJPrlKlyPMuASCqJeG7iDyIwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo 7KEwbwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQt eDMubGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQt eDMubGV0c2VuY3J5cHQub3JnLzAZBgNVHREEEjAQgg53d3cudGF2dmFuLmNvbTBM BgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIB FhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQMGCisGAQQB1nkCBAIEgfQE gfEA7wB2AF6nc/nfVsDntTZIfdBJ4DJ6kZoMhKESEoQYdZaBcUVYAAABbx7coa8A AAQDAEcwRQIhAPembps4p8Oe05q1TuBDYd1QUmPtS3JxXzNH8juoOM77AiBZvKKF ODO8iSF4Fzi1ZUXcLn4jZ7Ft7M8V7OvqaRiO7gB1ALIeBcyLos2KIE6HZvkruYol IGdr2vpw57JJUy3vi5BeAAABbx7coZsAAAQDAEYwRAIgKZdeEVRsaOZgDDv3zI/Q 1M34umEfIYgUZ2XwE/OPWisCIEAIMsWOKooivAERVZVMopgvGmHsUwY2YxeFAho6 tk2fMA0GCSqGSIb3DQEBCwUAA4IBAQAkRj7qBhlLqHoxMWdQKsXkgXaMW+eZbd+w gwjiBe5vI/IL1hdVLsyw4/66jSISGmZEk7wTrDSAtfnQeAcIa0xx+WMzr/VXubJx ChCvwyCuKbTmFapEG7yFtD+VXayaqfKA5V+iTLcYYThK4Awav2GJGxZCLLVTgJRy XzsbTXC5kg67Imc7Nlavu0vif00VutnTlqJ6w3XHyT4L3HSHNDbSVmB0ZbCNs/54 m5/R51dqBMfNo20z1JePHNlPNaTG6N/gV4VQPtNPMJwoBE/Grw8x7iYY/FLdJ4io HpxIYe1hkUZ+pi2H8w3a3QXMtQM4fxA0/eacHJrypDRfc4iYJ2JA -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAwNska5HWlbsw8zzhB5p3 cIyHsGsMwoqxZywhrYi2y89H43+xWr3Hm6bfdkCyfk2k8SZ4c3Y4Z8DjUXjdG57h +ygsmvVTurn8AaesGFdiwhcdFfB7dNW6WddvFZa7yy493AtI1xVobrjiLaJ0XDQR ClIadp/g+/wX5SfJ0dt+VV/piPZEGTyLpSz5ds67BP7SmtJHLWgwFESmWo4uV0P9 IpqsSJYjmyypxTlxmTYQ/j3VGE1DEc+fjbhCyWvc8XtXQhbLsQy+6WeCf9twek4q uYlKfK91KkvUspoC8hHNqIZxCc3pSEVODa11ZSM2cxFR0ZO7rhPZn/uV75mj02Yr zWKjDb2oFtf/N1+tU0W5fPTwpMXlAfMRj8eWz26ciAEvWJ0eSFjHby03Q6cWamhQ Ms4/Y7d371DJfmcCK2nuOZ7lRYfIJQ+eJu3pj9D53HLgu1YPYyrK6UN7DjGeSZaw mFcNV17Ko+3bOUSgP4ES9dLkSb+sP+0AXJjMXFzzQkcRghUeMwBbvmc8Zcyu+tGy JYEO67oEym9/3ju32lA9Q/sAu6rQrqbzOsK4E0nJdrtWRcIFww9y0wqg/SQXCy/O 8lkbIUROBlVS+BiV/GxBn9GgmOil0fjBa7aUuzYag9qQQz1TACQVeBVMUQ9kWoKV 0R+72sBS51NInAY9xkzApPMCAwEAAQ== -----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 302529819391920359752945101592253684543650 . . . . . . . . [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 2019-12-19 14:52:53 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-18 14:52:53 +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 'www.tavvan.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 786783936243857185072702984934555893909254240006585819498634732817987892075634874825482706681290835355766021274195110186931196277372892116432879426440913069063461660814777289343502092385970739234457945498787246390303239842055145478509002406609110482951558971082627552523684771181154999938671035322930036309199030382659308059457977287565892362031317805553594928934382854506185948147728143559847550917795564956887522656466545419436621229078219818749408512701651074780545473241083518251786587568301012541002787044344297773447572669981755084414839074325227033569723102286822429625420589473984797350936815406577504068196465669208186836417336227607740695773833875802288941850496065310508721968918622226374147658782521071594152353800325033081072290729703104504165435836575891814220861809081649399524369569702139152366265942325320274432832341872053891945065172667216532346526746348756862278533810171626338185822525325473659009708989496623403822603267420102999710807998566959115576409268628783958075855991540317826313669095294448146430385644594064887514042428576904051788060744257142603918014979471878698037189551577623941859619882484371263889774934380917670451147487689733160406263134923673098760534814170061293933321984283578640598013355251 . . . . . . . . . . . . . . . . . . . . [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) 4a98b26093eb94a9723ccb80482a89786ee20f22 . . . . . . . . . . . . . . . . [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 (18 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.tavvan.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 (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef0076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f1edca1af0000040300473045022100f7a66e9b38a7c39ed39ab54ee04361dd505263ed4b72715f3347f23ba838cefb022059bca2853833bc8921781738b56545dc2e7e2367b16deccf15ecebea69188eee007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f1edca19b0000040300463044022029975e11546c68e6600c3bf7cc8fd0d4cdf8ba611f2188146765f013f38f5a2b0220400832c58e2a8a22bc011155954ca2982f1a61ec530636631785021a3ab64d9f . . . . [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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