prolan.org
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:d6:db:6c:c9:e7:b0:3f:3f:78:80:3f:5e:d4:19:08:2e:35 was issued on by Let's Encrypt.
With 2 subject alternative names this certificate can be used to secure multiple fqdn's. 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=prolan.org
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:d6:db:6c:c9:e7:b0:3f:3f:78:80:3f:5e:d4:19:08:2e:35Serial Number (int): 421561236042380017803775527610431954234933
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 0f:f5:b7:b7:a3:d1:76:f4:3e:51:d4:b6:48:22:ad:8c:65:19:0b:3e
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 75:18:a6:db:55:c6:00:2c:04:1c:4b:8d:b5:60:4c:64:c8:88:9d:7a
Fingerprint (sha256): ae:8e:db:c8:86:cc:ec:10:da:27:72:a9:03:73:1f:52:40:97:be:ea:da:f6:fb:1b:f5:20:bd:e8:1f:5e:08:d3
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate prolan.org
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for prolan.org
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
8 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
prolan.org
www.prolan.org
www.prolan.org
Other certificates including the domain name prolan.org
(limited to 100 certificates)
prolan.org
prolan.org
prolan.org
sql.prolan.org
prolan.org
mail.prolan.org
prolan.org
mail.prolan.org
prolan.org
mrtg.prolan.org
prolan.org
prolan.org
mail.prolan.org
mrtg.prolan.org
mrtg.prolan.org
prolan.org
mrtg.prolan.org
mail.prolan.org
prolan.org
mrtg.prolan.org
mail.prolan.org
prolan.org
prolan.org
prolan.org
status.prolan.org
prolan.org
mail.prolan.org
prolan.org
prolan.org
ftp.prolan.org
status.prolan.org
prolan.org
prolan.org
prolan.org
prolan.org
sql.prolan.org
prolan.org
mail.prolan.org
prolan.org
mail.prolan.org
prolan.org
mrtg.prolan.org
prolan.org
prolan.org
mail.prolan.org
mrtg.prolan.org
mrtg.prolan.org
prolan.org
mrtg.prolan.org
mail.prolan.org
prolan.org
mrtg.prolan.org
mail.prolan.org
prolan.org
prolan.org
prolan.org
status.prolan.org
prolan.org
mail.prolan.org
prolan.org
prolan.org
ftp.prolan.org
status.prolan.org
prolan.org
prolan.org
Certificate
The complete raw certificate details for prolan.org in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGBzCCBO+gAwIBAgISBNbbbMnnsD8/eIA/XtQZCC41MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xNzA5MTcwNDAxMDBaFw0x NzEyMTYwNDAxMDBaMBUxEzARBgNVBAMTCnByb2xhbi5vcmcwggIiMA0GCSqGSIb3 DQEBAQUAA4ICDwAwggIKAoICAQDH5YhDPpX9eXbpqYMdYggMKT2WV03hBpneJnMd xmYTmJSYFhOz7q0WrC2G3ppGixiWXfdKV/bMtvxbBvTkE234WYnBxHghlolOhTuP 5PeyVl1MiLUqUcPl1rMebWrCcxg/ktTYtEug+uwEqT+Mc2V399W5spKLhHeMZgwq j0fnLGrszPIkrk6Ff9mXFtvir1cd/ZUg/PAyPjiMv/MJ6oi3FITfqEyN8YCM8XUi mfLxSNfIrWTPi2hrE1FTgK0UFvo512IEFck+jZX+d7w6T3dd0eqcpRVOqlmkvmyB AeaEVFihCDBfoIoPNUFXd8IwQzX9TmQ2H/6nQx2WHd5UNKL7QEPPr+PgL3Om3XPW xc7txnkLPCXZ1X5VshEwRboXfhAqkxjzzKP1ANTy3fbFthky78RaSgV/VzYZcoP9 /Sxt6ceVy+AfhTfz+wfdKve2qKRN2DClNGASYN07kXqf3VfwkwkgBrzpWVzjyZnq pfDuE1ObZCyEOob83mjofh5JDg7dtHjRqwFVgw2D5HQQUkpnObH20E7Q3dk1TpPi ygCFS3g9+YkG8IGmNyB2SyV9Q5T67mdkPg3PBxOjyDZRRoJEAwt0EGUp7bRmAcdF Y4/NYuNaOkK1ANzQvzjT1V80zekp+w6k2S4urbsIFCrApg/fdPr07/5YXebUyW+H LIx+7QIDAQABo4ICGjCCAhYwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsG AQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBQP9be3o9F2 9D5R1LZIIq2MZRkLPjAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBv BggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5s ZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5s ZXRzZW5jcnlwdC5vcmcvMCUGA1UdEQQeMByCCnByb2xhbi5vcmeCDnd3dy5wcm9s YW4ub3JnMIH+BgNVHSAEgfYwgfMwCAYGZ4EMAQIBMIHmBgsrBgEEAYLfEwEBATCB 1jAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwgasGCCsG AQUFBwICMIGeDIGbVGhpcyBDZXJ0aWZpY2F0ZSBtYXkgb25seSBiZSByZWxpZWQg dXBvbiBieSBSZWx5aW5nIFBhcnRpZXMgYW5kIG9ubHkgaW4gYWNjb3JkYW5jZSB3 aXRoIHRoZSBDZXJ0aWZpY2F0ZSBQb2xpY3kgZm91bmQgYXQgaHR0cHM6Ly9sZXRz ZW5jcnlwdC5vcmcvcmVwb3NpdG9yeS8wDQYJKoZIhvcNAQELBQADggEBAI585JzP MEfIMDx7KhoDd1fkwaNHhmK7Nn2x6ajrq+SVsO+w3DC7bGspynHOE+I21KvP/6zL d/7GWwQE6D1ABVbPsKEXyERdaKnNEVfT/G4e6QoD9zZTaAYyoomDO1bs4fS9r9er SwEnZCAL9UdEoCLqc4S5uiWY04i1PAbTg0nSlf2lafWPXsGPaSOu0sQvZAOQIPrC yc+4rqTWFn9l/jYju5L2jDDDlR+awwFFaZhuhOC8IPovTAA+hAPfa1/YhiAVxY5U Rw7lSH85jJwHVpi4l4i64JluHkl0bS0TMcHTIftHWzCrqIZV4vmF0BUSic4BvpaR P8gy2UfJz6cjwPY= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAx+WIQz6V/Xl26amDHWII DCk9lldN4QaZ3iZzHcZmE5iUmBYTs+6tFqwtht6aRosYll33Slf2zLb8Wwb05BNt +FmJwcR4IZaJToU7j+T3slZdTIi1KlHD5dazHm1qwnMYP5LU2LRLoPrsBKk/jHNl d/fVubKSi4R3jGYMKo9H5yxq7MzyJK5OhX/Zlxbb4q9XHf2VIPzwMj44jL/zCeqI txSE36hMjfGAjPF1Ipny8UjXyK1kz4toaxNRU4CtFBb6OddiBBXJPo2V/ne8Ok93 XdHqnKUVTqpZpL5sgQHmhFRYoQgwX6CKDzVBV3fCMEM1/U5kNh/+p0Mdlh3eVDSi +0BDz6/j4C9zpt1z1sXO7cZ5Czwl2dV+VbIRMEW6F34QKpMY88yj9QDU8t32xbYZ Mu/EWkoFf1c2GXKD/f0sbenHlcvgH4U38/sH3Sr3tqikTdgwpTRgEmDdO5F6n91X 8JMJIAa86Vlc48mZ6qXw7hNTm2QshDqG/N5o6H4eSQ4O3bR40asBVYMNg+R0EFJK Zzmx9tBO0N3ZNU6T4soAhUt4PfmJBvCBpjcgdkslfUOU+u5nZD4NzwcTo8g2UUaC RAMLdBBlKe20ZgHHRWOPzWLjWjpCtQDc0L8409VfNM3pKfsOpNkuLq27CBQqwKYP 33T69O/+WF3m1MlvhyyMfu0CAwEAAQ== -----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 421561236042380017803775527610431954234933 . . . . . . . . [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 2017-09-17 04:01:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-12-16 04:01:00 +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 'prolan.org' . . . . . . . . [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 815507021053525526494821518609724815948213737393690722585202538237112844583579138940999275386071509311926107890560492609492052125886691381076644854518459080185803683651871411347072233323345178444558641296722721373099578199218207850289358991917860156638659904098628156737856447421900390239877183940125734622121080694636898707117193330878857959758994761418776006165388156676146606896419336329762745695070205066994837778545504981218320268419947014097555209278216470368126171689202691515812540767116193587751589184125614243722227806845586174913193054226182693433656596636036027708194416427504381351449560205365905824722842829688657330402270202770523643170163240342540672694040142230013396843364891786814845509956044630717484603978767846961288307708659526711494257028890974387264956151832844687386672385381598093117510682288500559049087747051467508861415669647005134754969151886095169166504596938783206700056136366826783229135454208400718587247857287086481624432654259246930276830837531417252875872626889912291015508514761570758581120751012256000491627258806456567889721292038700481925240584765628563392937181774738366503027595788132574770431940693524692028183832711241968281232528547664757503863952336937076599911241186294004397883817709 . . . . . . . . . . . . . . . . . . . . [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) 0ff5b7b7a3d176f43e51d4b64822ad8c65190b3e . . . . . . . . . . . . . . . . [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 (30 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'prolan.org' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.prolan.org' . . . . . . . . . . . . . . . . [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 (246 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 1.3.6.1.5.5.7.2.2 (unotice) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/' . . . . [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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