mail.massisnetworks.nl
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:b6:60:6d:4b:b6:b8:fe:1f:82:61:f8:42:10:7a:28:c2:37 was issued on by Let's Encrypt.
With 4 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=mail.massisnetworks.nl
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:b6:60:6d:4b:b6:b8:fe:1f:82:61:f8:42:10:7a:28:c2:37Serial Number (int): 323396421958501970819451350372186862436919
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: e8:46:26:8d:7d:4f:a5:46:7b:e9:91:f0:99:de:a5:e0:19:6c:c6:26
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 8a:67:e7:09:68:c9:3f:69:a5:d8:59:e6:e5:1b:31:6d:69:dc:31:3e
Fingerprint (sha256): 7e:92:96:10:0e:3c:30:5f:a0:8a:8a:4b:a1:ee:14:c4:8a:6a:79:64:0a:54:cb:fc:8d:88:c2:c9:a8:e1:88:d7
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate mail.massisnetworks.nl
4
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for mail.massisnetworks.nl
Public Key Algorithm
RSA
Key Size
2048
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
autodiscover.massisnetworks.nl
email.massisnetworks.nl
mail.massisnetworks.nl
mailsrv.massisnetworks.nl
email.massisnetworks.nl
mail.massisnetworks.nl
mailsrv.massisnetworks.nl
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Certificate
The complete raw certificate details for mail.massisnetworks.nl in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFuDCCBKCgAwIBAgISA7ZgbUu2uP4fgmH4QhB6KMI3MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA2MjgxODMyMzdaFw0x OTA5MjYxODMyMzdaMCExHzAdBgNVBAMTFm1haWwubWFzc2lzbmV0d29ya3Mubmww ggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDpE5N0iNaIlBunlDXemTOX 8A8mhsUtuuGlOaGT998optiAQpFytg+pXlDo6gZfvGKU5mU+WUE5iSxFVi0OrO1h 3Tut+Z1B6ZYXVjl0WGtXbq4mp8PbSgpsdVKKdOMS26rjZ4EVKBdnWBEcX3d9jX+j GQvuwRQRRyBbYWL7cIhzgzEOuafIWYYG9r8s2tYaYklOPGi4RSToF2GMJ3RngdBW rn5qgntMt8d8XdfxfQnKmzcG3I9+ZsoIVkp1xNx1LVJ4pGWlbGWmQV80RY0+Tu77 mTZ5QeUVd+sljfe1zKNL/oLSu1W9KMK0Mn8v0pPVcVnSkGHXH3jICYVexICtNL0b AgMBAAGjggK/MIICuzAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUH AwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFOhGJo19T6VGe+mR 8JnepeAZbMYmMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsG AQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNl bmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNl bmNyeXB0Lm9yZy8wdQYDVR0RBG4wbIIeYXV0b2Rpc2NvdmVyLm1hc3Npc25ldHdv cmtzLm5sghdlbWFpbC5tYXNzaXNuZXR3b3Jrcy5ubIIWbWFpbC5tYXNzaXNuZXR3 b3Jrcy5ubIIZbWFpbHNydi5tYXNzaXNuZXR3b3Jrcy5ubDBMBgNVHSAERTBDMAgG BmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRwOi8vY3Bz LmxldHNlbmNyeXB0Lm9yZzCCAQQGCisGAQQB1nkCBAIEgfUEgfIA8AB1AOJpS64m 6OlACeiGG7Y7g9Q+5/50iPukjyiTAZ3d8dv+AAABa5+TREIAAAQDAEYwRAIgNRHI K1B82KGDz4uiTYB9XZG/PaYSyzbDKpt7zqASaf8CIGgV5VrA7fgYpz9hhf49okPh jGZCOCYiiFNYitt2fVDHAHcAY/Lbzeg7zCzPC3KEJ1drM6SNYXePvXWmOLHHaFRL 2I0AAAFrn5NEZQAABAMASDBGAiEAva75iB/GXbhLZYCPXl92MmKBYB2C0GsoIuEy pBOOlYwCIQDYQv1v6Zp7ZPoOryWFDqST1WklzdMF7DTmXlpzAfJCIDANBgkqhkiG 9w0BAQsFAAOCAQEADPGnWVZgnXIqDnSlAshUyajex1K1eY9NfC++NOY2l8XLziha K7gvhMbi7CqfCkw9+dZNqiII92lyTBo+MrG0qyR/Ptoyywng096GxToLeq7VlTtv 6MmvsD6NnYVAySpwhgnyP3iuGaycFAgP6tLg7Eg9K9LieyQNxkvJ2kq8I0X/iqRD C10qhzvv5GKz7300Dv+llp81H7isoxf/H0XgOzI/Aj+zqMj+/daXRDm+tFk577kA 9kIw5os2etoBtVSKmlY4WNb0S6IbwyK9doPg5eYGfhuFdrQK10ecQDioxSOHzeBb eAJjO3+FJLVuQY04BaVs/G6ar4t5dL1/W7brnw== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA6ROTdIjWiJQbp5Q13pkz l/APJobFLbrhpTmhk/ffKKbYgEKRcrYPqV5Q6OoGX7xilOZlPllBOYksRVYtDqzt Yd07rfmdQemWF1Y5dFhrV26uJqfD20oKbHVSinTjEtuq42eBFSgXZ1gRHF93fY1/ oxkL7sEUEUcgW2Fi+3CIc4MxDrmnyFmGBva/LNrWGmJJTjxouEUk6BdhjCd0Z4HQ Vq5+aoJ7TLfHfF3X8X0Jyps3BtyPfmbKCFZKdcTcdS1SeKRlpWxlpkFfNEWNPk7u +5k2eUHlFXfrJY33tcyjS/6C0rtVvSjCtDJ/L9KT1XFZ0pBh1x94yAmFXsSArTS9 GwIDAQAB -----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 323396421958501970819451350372186862436919 . . . . . . . . [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 2019-06-28 18:32:37 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-09-26 18:32:37 +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 'mail.massisnetworks.nl' . . . . . . . . [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 (2160 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 29423178340958544820405133625958167710095888264856722985561467835999457419626564091460108879179489091875215874548991636324586186725432652173359182638020932016052423272040799338759018404316771629911992686320557826245702860041799333086268542333401793686499774921671831663731849019568379333130048487097403860930082722529707074530848356913886925578170831484402213088880531725711546047997925890141236098735883611747790961392925064028053327215605980173826411631260128810136099736067764801176070765873816894832639477599346879084727228636428777608667958630098884147954185992529486180878842621609044518799643736646683679046939 . . . . . . . . . . . . . . . . . . . . [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) e846268d7d4fa5467be991f099dea5e0196cc626 . . . . . . . . . . . . . . . . [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 (110 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'autodiscover.massisnetworks.nl' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'email.massisnetworks.nl' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.massisnetworks.nl' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mailsrv.massisnetworks.nl' . . . . . . . . . . . . . . . . [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) 00f0007500e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016b9f934442000004030046304402203511c82b507cd8a183cf8ba24d807d5d91bf3da612cb36c32a9b7bcea01269ff02206815e55ac0edf818a73f6185fe3da243e18c66423826228853588adb767d50c700770063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016b9f9344650000040300483046022100bdaef9881fc65db84b65808f5e5f76326281601d82d06b2822e132a4138e958c022100d842fd6fe99a7b64fa0eaf25850ea493d56925cdd305ec34e65e5a7301f24220 . . . . [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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