mail.segfaultstudios.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:62:43:5a:19:4c:d5:19:a3:e4:6b:97:f3:42:77:4a:43:ef 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): 03:62:43:5a:19:4c:d5:19:a3:e4:6b:97:f3:42:77:4a:43:ef
Serial Number (int): 294774055849115098603826167264086336357359
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 94:f5:ff:f5:f8:e8:a8:79:5e:9c:54:48:d7:54:91:50:f6:c7:cb:18
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 13:f6:b3:ce:bf:21:0f:fc:e4:b9:9d:56:ce:65:d6:da:7c:a4:73:87
Fingerprint (sha256): ff:96:a2:3c:66:e9:79:f6:ca:91:dc:82:2f:b9:78:7e:f5:5e:e6:f4:2b:da:db:7d:e3:9d:b9:d7:84:24:f4:38

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 294774055849115098603826167264086336357359
 . . . . . . . . [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 2016-11-28 00:17:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-02-26 00:17:00 +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 993042124551814504825952347653548080016853368771694212057687733296525207533566716488312515314750101853345132979397823509121485472991483557200078910418808215091074691347800614513027968555340424479572749576340353253787814786833672172209210212474025039503843249137875703486722952529080903206782443150967575584008080045895745508931635813585645150813512722519601485292873359194916752436210580329340284628829539717735577011306458383155956807253628510059321142621495817752675019910109285675080709534642420635388551547137133296138440236269672058112871677237573484621784369653385481842698166566800401045957229219955935877790172562287528555352616931153528490587531149219262595771231349170948116675904180175671208145926582903605348219974628017489982247495568606640905073548651026930792001105920895509510992617334821294360480888969585393011966581442088133651148414746698166747102509819952344743481010723317914138921248432522415029715201303255266597663800327593662066161009180783652755068880378881893696604758783612185002612079388318874059734446569537559859159677033063363365064203734726379357043303672529117383786077807498588913183826491760871984544679531211370611377091076677320837859044452144565633811070227607124819359689892120747252941406851
 . . . . . . . . . . . . . . . . . . . . [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)
							94f5fff5f8e8a8795e9c5448d7549150f6c7cb18
 . . . . . . . . . . . . . . . . [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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