mail.newcitycompany.net

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:75:bb:dd:6e:45:72:81:7a:d4:35:99:1b:6c:bc:fb:d8:47 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=mail.newcitycompany.net

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:75:bb:dd:6e:45:72:81:7a:d4:35:99:1b:6c:bc:fb:d8:47
Serial Number (int): 301399610094415293067987077092258814351431
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 75:84:2b:a9:14:ac:4a:94:b4:5e:fa:a3:49:5b:4a:b9:46:7a:a2:01
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): ba:95:a1:99:63:6d:e5:61:e7:4f:44:c3:ef:3a:e2:4e:ea:3e:55:b4
Fingerprint (sha256): 38:f7:19:1d:85:17:f8:75:af:ea:22:fc:c0:c4:4f:17:bf:2a:82:a1:e7:a1:95:84:6a:8f:72:19:cc:6a:e1:cb

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate mail.newcitycompany.net

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mail.newcitycompany.net

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

mail.newcitycompany.net

Other certificates including the domain name newcitycompany.net

(limited to 100 certificates)
mail.newcitycompany.net
mail.newcitycompany.net
mail.newcitycompany.net
vize.newcitycompany.net
mail.newcitycompany.net
mail.newcitycompany.net
mail.newcitycompany.net
mail.newcitycompany.net
mail.newcitycompany.net

Certificate

The complete raw certificate details for mail.newcitycompany.net in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIFZTCCBE2gAwIBAgISA3W73W5FcoF61DWZG2y8+9hHMA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA2MTgyMDAwNDNaFw0x
OTA5MTYyMDAwNDNaMCIxIDAeBgNVBAMTF21haWwubmV3Y2l0eWNvbXBhbnkubmV0
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0pqOFXAbwXrKASS1ArQS
ypYGE1xOz/1x6+MCxzsY5kXZOcl366AYh7QV4A+RYmzy59XtOe1ssTYbDgF7/jka
JBUu3pkWm7OyDXVUAxtaiNTJFoHItlBJ9DHXojAwV/62Rty308URdd+Szzs6BycJ
qFB78K+6ppB4gDBm8Ol4yASn8Yb/svitL1xTWrUxzibCBvVsf1VL+Qs/+NVAz8qq
vXt1NqZstsY1jdg1z1VE1T13fAksHG73H74AFp11FF6REv1tF+4QU2QFtemE59To
VXlQN5GcHetp2rhGKso7exHBMQQWYocsLJFjcuj7bPyn3/4k8gH3Jz33Xok82yLJ
9QIDAQABo4ICazCCAmcwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUF
BwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBR1hCupFKxKlLRe
+qNJW0q5RnqiATAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggr
BgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRz
ZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRz
ZW5jcnlwdC5vcmcvMCIGA1UdEQQbMBmCF21haWwubmV3Y2l0eWNvbXBhbnkubmV0
MEwGA1UdIARFMEMwCAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUH
AgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5cHQub3JnMIIBAwYKKwYBBAHWeQIEAgSB
9ASB8QDvAHUAKTxRllTIOWW6qlD8WAfUt2+/WHopctykwwz05UVH9HgAAAFrbGRV
QAAABAMARjBEAiANZGjvMimSJbqPun17eMDkbNV1LUXBwG5iuFxZ3VIkpAIgCG8R
vOE8WDJnkeepzWwSb2DlstzRKyoEjSIK4i64Pn8AdgDiaUuuJujpQAnohhu2O4PU
Puf+dIj7pI8okwGd3fHb/gAAAWtsZFc+AAAEAwBHMEUCIQDeLuxkFr2yIrluhYUl
uw+VjTJPPcraYImXcX3jFs9wKQIgESRuUR3m0oC7SBXAldwXyV7VPl4Qw31dpZAt
SpOFxugwDQYJKoZIhvcNAQELBQADggEBAFG42KoqsDjWk6H//b1KN86ck59/kINf
d7+8PZnsMJI+isulq8uYczTS1paKtGPRChywBY8mhv1ke22bNcuJ0ynhwOGLp01s
3bI+ZUemQIFUGfFrpeYt1hUGp0JslEEC8alHyEnNL6bUhY1evnlUOXlSyKPollfQ
8tZVxJSMkJNDUcWbHla9oOD+5XPdU2/cZviZ8Vfg831F7OaaaPa0rwp2LeIpb3eY
5iZmpxspY+ww4nYjXaPQHt0IKSjPySoFfLdaT+INiTo7WtlCEbd/2h+6cXR3MwO9
3/8/pQzb4WK7tpgjdF0tyGevpwcx3WePGc9ksoXD/SCRfk1z/EAgEJU=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0pqOFXAbwXrKASS1ArQS
ypYGE1xOz/1x6+MCxzsY5kXZOcl366AYh7QV4A+RYmzy59XtOe1ssTYbDgF7/jka
JBUu3pkWm7OyDXVUAxtaiNTJFoHItlBJ9DHXojAwV/62Rty308URdd+Szzs6BycJ
qFB78K+6ppB4gDBm8Ol4yASn8Yb/svitL1xTWrUxzibCBvVsf1VL+Qs/+NVAz8qq
vXt1NqZstsY1jdg1z1VE1T13fAksHG73H74AFp11FF6REv1tF+4QU2QFtemE59To
VXlQN5GcHetp2rhGKso7exHBMQQWYocsLJFjcuj7bPyn3/4k8gH3Jz33Xok82yLJ
9QIDAQAB
-----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 301399610094415293067987077092258814351431
 . . . . . . . . [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 2019-06-18 20:00:43 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-09-16 20:00:43 +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.newcitycompany.net'
 . . . . . . . . [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 26586257961111464205768930703111063378598212143647883834379210623801208413063866292901218866089524893563234170734109354905682985681187068822461471185485066490784100636030453906519406707759722685882102674533778575248825179048254460424104560307066135348603858200071907031109687500862584790673973495217302056128620513531200496129902518093567841642585803126320851027941220944009574549957378807780918676952850377188337612547011180141995475372650584777342482437275954394213989570166491337042469748363542044751568041057226986672201573575462386236914726937726966678161704977505217991903828986408906803280102800063164657617397
 . . . . . . . . . . . . . . . . . . . . [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)
							75842ba914ac4a94b45efaa3495b4ab9467aa201
 . . . . . . . . . . . . . . . . [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 (27 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.newcitycompany.net'
 . . . . . . . . . . . . . . . . [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)
							00ef007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016b6c645540000004030046304402200d6468ef32299225ba8fba7d7b78c0e46cd5752d45c1c06e62b85c59dd5224a40220086f11bce13c58326791e7a9cd6c126f60e5b2dcd12b2a048d220ae22eb83e7f007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016b6c64573e0000040300473045022100de2eec6416bdb222b96e858525bb0f958d324f3dcada608997717de316cf7029022011246e511de6d280bb4815c095dc17c95ed53e5e10c37d5da5902d4a9385c6e8
 . . . . [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)
		0051b8d8aa2ab038d693a1fffdbd4a37ce9c939f7f90835f77bfbc3d99ec30923e8acba5abcb987334d2d6968ab463d10a1cb0058f2686fd647b6d9b35cb89d329e1c0e18ba74d6cddb23e6547a640815419f16ba5e62dd61506a7426c944102f1a947c849cd2fa6d4858d5ebe7954397952c8a3e89657d0f2d655c4948c90934351c59b1e56bda0e0fee573dd536fdc66f899f157e0f37d45ece69a68f6b4af0a762de2296f7798e62666a71b2963ec30e276235da3d01edd082928cfc92a057cb75a4fe20d893a3b5ad94211b77fda1fba7174773303bddfff3fa50cdbe162bbb69823745d2dc867afa70731dd678f19cf64b285c3fd20917e4d73fc40201095