mail.segfaultstudios.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:b2:e1:01:c1:10:56:ca:c1:2c:5a:b8:39:4e:8e:4c:8c:23 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.segfaultstudios.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:b2:e1:01:c1:10:56:ca:c1:2c:5a:b8:39:4e:8e:4c:8c:23
Serial Number (int): 322206204514355815973679107774785390414883
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 1e:e4:90:e4:d2:6d:e7:cf:fa:7d:26:7c:fd:c3:d2:81:26:84:c6:0b
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 54:67:9d:83:17:f5:04:b2:52:15:7a:ff:53:71:f5:b6:23:78:6d:10
Fingerprint (sha256): 26:26:fc:5a:d0:e4:0f:a5:89:43:33:c1:7c:21:5c:ee:cf:c4:5d:46:07:49:49:44:2a:9e:7a:2d:81:bd:de:1c

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.segfaultstudios.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mail.segfaultstudios.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

8 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

mail.segfaultstudios.com

Other certificates including the domain name segfaultstudios.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for mail.segfaultstudios.com in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIGFDCCBPygAwIBAgISA7LhAcEQVsrBLFq4OU6OTIwjMA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xNjEyMDUwNTE5MDBaFw0x
NzAzMDUwNTE5MDBaMCMxITAfBgNVBAMTGG1haWwuc2VnZmF1bHRzdHVkaW9zLmNv
bTCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAKxOzaVqJCe7X9ji0/6x
FC6uWKdtlpx3Gy5z10GbTaMjuQ8oSYk2XMlstUqbI42gqjTxIRBoGyo694scskG/
6u2IOk1+16KotvVCZB+cnnc8VHCRrL2jt4CwfTH6x2Gwx9eq5P+D0v4Ud3BGqavJ
RnmmmSoUJSbDQuQKV2bXMWlvaVtLk6TMH99TfiBxAtBbjmioGschbArk1e1jeOb9
MjtpMbCCCkKmx1sT6YPeoTkjXzDqjqXHZN9pEvcGrwIqcBZ4HFFLQOTG82br3rfQ
Qw+W3IBE0GcsBAFxSi6sDr8Kae0CuE7wdcGj0jD0ba388/x9tmwGEq0Pc4SQcdXf
Wcon3Cmrxoif4rpf3xQT678g5Z+EOI7UdYaI6Fdtgm+21nilVq+ODLq7COgw+OVU
ccD80rEhAZ7K9RPHTRBSTr30UQl8xi7mqpGZyj3IZvCfB8MaFCezuk1JqiXt+rut
KzmL67+fUbvFAFA7V8wVhP2mG4zcjqBvwIvB1BqFqQR3c6hKEBS2I7yfjnkmHTff
fNzGWo16yA8qHv1oWaxfEGNg8bVBDqCUvuzPNTctfZa3Dgt3wh44pz8/9/rkQ0UX
VGPUElPKiEbfPdMCJ6+9Jzgwrj5GGhWklr1ALyLSGeIO70mviNGBLKrp5Skt1c8C
wAvbhQJfru9YVktFUev4EdWhAgMBAAGjggIZMIICFTAOBgNVHQ8BAf8EBAMCBaAw
HQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYD
VR0OBBYEFB7kkOTSbefP+n0mfP3D0oEmhMYLMB8GA1UdIwQYMBaAFKhKamMEfd26
5tE5t6ZFZe/zqOyhMHAGCCsGAQUFBwEBBGQwYjAvBggrBgEFBQcwAYYjaHR0cDov
L29jc3AuaW50LXgzLmxldHNlbmNyeXB0Lm9yZy8wLwYIKwYBBQUHMAKGI2h0dHA6
Ly9jZXJ0LmludC14My5sZXRzZW5jcnlwdC5vcmcvMCMGA1UdEQQcMBqCGG1haWwu
c2VnZmF1bHRzdHVkaW9zLmNvbTCB/gYDVR0gBIH2MIHzMAgGBmeBDAECATCB5gYL
KwYBBAGC3xMBAQEwgdYwJgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5
cHQub3JnMIGrBggrBgEFBQcCAjCBngyBm1RoaXMgQ2VydGlmaWNhdGUgbWF5IG9u
bHkgYmUgcmVsaWVkIHVwb24gYnkgUmVseWluZyBQYXJ0aWVzIGFuZCBvbmx5IGlu
IGFjY29yZGFuY2Ugd2l0aCB0aGUgQ2VydGlmaWNhdGUgUG9saWN5IGZvdW5kIGF0
IGh0dHBzOi8vbGV0c2VuY3J5cHQub3JnL3JlcG9zaXRvcnkvMA0GCSqGSIb3DQEB
CwUAA4IBAQCaB45L/Q9J5RyU2ICXb5yP/cjXVxied1SFtDMBLCwJ4VfHO6In9dsZ
IOo2w/5VdaDkh+5DOeFiQdB80pSwt/cmXDpgEdFXrk0H5WF01bDbPNWgmGhjrO5b
5DV5d/Q9qRecGZn/4oZfmkKJa3GweD1v72GXZ8ZBa4tLK8coj+G8x/7xxuSXUI+U
vIy28Dw8EWpbFbLNrXhtsnIOlJ2P9QZtp4hIsvuRr/4FS4jJjWU1BruMpVy9Pwbs
49cgoHtC5JCba78toqzm8pChkr0/NolDFJJm8fM4Y9xfPpUFJgoegaSSpPucgG8p
muxLQN1UzZZ9mDlKiTEaNitzhK0IHd3K
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 322206204514355815973679107774785390414883
 . . . . . . . . [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 2016-12-05 05:19:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-03-05 05:19:00 +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 'mail.segfaultstudios.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 702954597812401260633841817505352797232468118685504100704890119641251097205328239801840615834021111088653263329342477357831356495636046657033768675497782573021325472773952203545079264774778162506175673021642124532141535788214513709435771951677619334524052881341223235157972670214323228330059642650529304470693571798333930128692444168453508358997347321363775574686964880697743384629658765815564650152501545311543641188867458892937011814827014074123678788683527391905318263277102473787979290231906845923149988369363816256722660501326763705939759310700628772497449256305482076661490134530734252241021426391871149793120510785975141913105930871880757354253520266118437906013313340096902132578249491939518543499713779741003143332732615607424429889040769657235503511260394907169239735335056177525527076642706956013084464434370666991175721248731175957819995367011603908233552991274451256600525564695321938281067646445087070330317054517610828257146804323333335415811800607462242099242664436302177266744192362485329479993135742133824022196490982436908766552445131468018338508872406133954628675824511693584421709623028684771417605271209467372790044736377827736368606638880954709484926668642018277835125548953500489571804277588609463118858409377
 . . . . . . . . . . . . . . . . . . . . [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)
							1ee490e4d26de7cffa7d267cfdc3d2812684c60b
 . . . . . . . . . . . . . . . . [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 (100 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 (28 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.segfaultstudios.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 (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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