mail.segfaultstudios.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:72:3d:95:6c:76:d5:81:82:af:b9:5e:19:67:9a:6f:4d:07 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): 03:72:3d:95:6c:76:d5:81:82:af:b9:5e:19:67:9a:6f:4d:07
Serial Number (int): 300210906384157763578995641566023597903111
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 38:e4:ff:47:fa:74:5c:9d:12:c3:e2:85:7a:29:d7:c8:13:fe:14:b0
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 43:6a:6b:b9:c0:0b:2b:e1:9f:58:93:da:99:ff:c7:1a:db:29:8f:3c
Fingerprint (sha256): 58:73:3a:f1:54:f8:c0:f0:8e:4b:b4:7b:aa:24:b6:7a:58:f1:98:79:51:e6:5d:21:7d:a4:c1:af:01:9c:5c:90

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-----
MIIGFDCCBPygAwIBAgISA3I9lWx21YGCr7leGWeab00HMA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xNjExMjcxOTIwMDBaFw0x
NzAyMjUxOTIwMDBaMCMxITAfBgNVBAMTGG1haWwuc2VnZmF1bHRzdHVkaW9zLmNv
bTCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBALs8zIluipDjoZAZTO1J
0jcDiGBA9G+qKmk2vwh41p6cQQlo2MFOGyhcMQ3ZrtPWlrOqvZC5soubYl/9PJrp
mVeocQAMfegjCsSgJKCrVQ+b94iDpifd14+h5ADA0I3VvwfgsC1E4cYZIDVP82OJ
rETPObQ/6p8NVBGnrDmiyHslKndIK5tI7jgVYW4UQh/1KHzlGdLY9yUC3IpGSFJ9
DUMmKsSoODRw1p56shTx9ffpPnIN92F6SoAttRgTzE6yIW8orhWymRbVfd4Uymv8
eggbA1MyzDrgtfhuR8IBlZF/kXWIsFc3EMDvF9xOMPWadDl47z5yQe2w2R5TO5Ol
PEx1aZMFQjbECBLkcjrvGRQ8ykN83qCNSIM3ZtBovVCfKwAq0PFopLJ8UgplfiyX
ZcF6c/LaE/R2srrE6vJL08nZpWZEdwrN6g9NzN+lTxK1P+LV5D1I7xtaajti5680
C4Lx8s0O13rmwrpvsWTbWqX3B+DqsHjT2qIyLLjZNIR7KpqeHPxwtdKg3BnnP1AF
IPAr3KqXm5F2nQq4tJJawOrvphRGfJoA/11WBm0PnPVEK4Hru8XGM3fvN/NsWsrW
aQkqE60X7hdYPr9G5be7Fk6ffVIHhPnH2mI4snB3VZkm01QwEZUjjOSJlE7VadWh
E2MC08NlVTRrsqTu1Q+4u7ovAgMBAAGjggIZMIICFTAOBgNVHQ8BAf8EBAMCBaAw
HQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYD
VR0OBBYEFDjk/0f6dFydEsPihXop18gT/hSwMB8GA1UdIwQYMBaAFKhKamMEfd26
5tE5t6ZFZe/zqOyhMHAGCCsGAQUFBwEBBGQwYjAvBggrBgEFBQcwAYYjaHR0cDov
L29jc3AuaW50LXgzLmxldHNlbmNyeXB0Lm9yZy8wLwYIKwYBBQUHMAKGI2h0dHA6
Ly9jZXJ0LmludC14My5sZXRzZW5jcnlwdC5vcmcvMCMGA1UdEQQcMBqCGG1haWwu
c2VnZmF1bHRzdHVkaW9zLmNvbTCB/gYDVR0gBIH2MIHzMAgGBmeBDAECATCB5gYL
KwYBBAGC3xMBAQEwgdYwJgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5
cHQub3JnMIGrBggrBgEFBQcCAjCBngyBm1RoaXMgQ2VydGlmaWNhdGUgbWF5IG9u
bHkgYmUgcmVsaWVkIHVwb24gYnkgUmVseWluZyBQYXJ0aWVzIGFuZCBvbmx5IGlu
IGFjY29yZGFuY2Ugd2l0aCB0aGUgQ2VydGlmaWNhdGUgUG9saWN5IGZvdW5kIGF0
IGh0dHBzOi8vbGV0c2VuY3J5cHQub3JnL3JlcG9zaXRvcnkvMA0GCSqGSIb3DQEB
CwUAA4IBAQBaYbjJVeyg1fyIWEr8OcEQmcnScSmpLsg9TZnIiSVYYVk+EajVXyaD
lK7AecBK0xwLRCNW0iP7TrC6+ThTR1svoZREJnK4zZWrfBYf6UtdiOsPiVtZnfI1
2k+TM6EuRYQkdMXq2bvdiJlHGX+mEXYiYelyyfZ0e1Tr0omwYixdorKA+kHfEwX5
jIy7ndXfOdpI2D0igntSE7xTDc0lU/POiwRXAQCtjqV6mUXrKl5samni25vSGw6n
+GftoC0gNDNgl0ei6weCjE+ZQzrRzFS5OcMYbTN9MpYE1WqccgkQIChkhRebJxVL
XhDvrfViBu6cJo3uCWjI3OaH4z9MBOWT
-----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 300210906384157763578995641566023597903111
 . . . . . . . . [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 2016-11-27 19:20:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-02-25 19:20:00 +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 763862339804281073625451965597095304112914871114282375894646552834776350388261534077805277872686310736786783589178443415765490345745874093733371649162592223760892615589774037365057016686369456995627914250350594580024117334665955252296775629741254448171717930454191943662307985034431612665279950251273494113789766180005523903948190571612880178520798159786213573789266075064596125250069593866137850946510318679371801375217028388401029084420734127002878985606505909490895967938933549571419325994129290342723507551878845565108518426825881275019447040478745436393981364649049692372474336364924529416518261382229058612665256761524433132809034504488515575138853946426067239189394330742899228942241215397769397690097529016516714707651507152477194457092655887127245887966002645812801431677874481128952209488872661244638571731294680140982453984161712210061190228557596963252502125697693509881772768912956635079901215321805090107688659438606150167370932539365615640862114926476026659309278822907833876630156919290110908016354154903683314475975444251002248231927962180533289724944257731215050041676917911471053439847416866806165553653283425407684035177795216341354973458273162916024986251085476319689732204826015980833499354958291407770346043951
 . . . . . . . . . . . . . . . . . . . . [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)
							38e4ff47fa745c9d12c3e2857a29d7c813fe14b0
 . . . . . . . . . . . . . . . . [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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