mail.segfaultstudios.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:4c:87:a6:54:20:a1:1f:f7:8f:36:47:71:f2:4d:ca:04:60 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): 03:4c:87:a6:54:20:a1:1f:f7:8f:36:47:71:f2:4d:ca:04:60
Serial Number (int): 287378627088289117226861254603502216938592
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 92:7a:b9:0c:f0:54:c0:72:b8:ef:8c:ed:23:68:07:81:5c:ef:8a:a2
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 81:37:c2:31:1d:98:c2:61:05:5f:97:67:80:8e:a9:fb:b0:a3:f3:9e
Fingerprint (sha256): b0:cf:eb:1d:2c:a4:da:50:9a:0c:f2:32:5a:92:3b:ce:ac:18:10:af:80:73:99:ba:a0:11:d2:20:63:a7:79:54

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-----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-----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 287378627088289117226861254603502216938592
 . . . . . . . . [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 2016-12-09 01:15:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-03-09 01:15:00 +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 809350019870200626179627408673572686835266588673284376264591839687440272245649128866162548061540408801304050213163859011040169727294457773344952077513881517652206163543847274415619032663963326590538664264646783184158158256940665131791495218346736966162874659984194620658615370031598500642729035216863970484371833250916439104397742329997142612674379918279147676377425582120940815010784019927470024703026066201193857845427650005048467199604010047031305194089176862776777145363019824024301666680091949432687190015710833169150672640373625946166883267340551559006452879559762634076057874275709612025987799834359944783031474018405799074696073703829053554241384915475704308995681695829704295610013876213888366469078027136477716589403500523065443445730602547118850063915011838262094422086154078376917168457781018104304135897307964809044763274566022869067799950327455187831801661486315376091112052862965675331304970572166906561143070940753148640434466391425959081702525662782069889200747401581789887269957540961496865308517268691637698891042425246677209098832255949739618432848897001911691550401769830695866236902382479387561122954329621210604924105361131154972064621866546941328847464434059938158874070872033084433165230153813329779971715553
 . . . . . . . . . . . . . . . . . . . . [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)
							927ab90cf054c072b8ef8ced236807815cef8aa2
 . . . . . . . . . . . . . . . . [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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