forum.gphilfe.de

Issued by Starfield Secure Certificate Authority - G2

About this certificate

This digital certificate with serial number 1e:c2:3d:db:5c:83:c9:8b was issued on by Starfield Technologies, Inc..

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. 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=forum.gphilfe.de,OU=Domain Control Validated

Starfield Technologies, Inc.

Organization: Starfield Technologies, Inc.
Organization unit: http://certs.starfieldtech.com/repository/
State / Province: Arizona
Locality: Scottsdale
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 1e:c2:3d:db:5c:83:c9:8b
Serial Number (int): 2216401978978978187
Serial Number lenght: 61 bits, 8 octets

SubjectKeyId: 81:f3:60:88:d8:1b:ff:d4:d6:d8:65:b4:ce:ec:88:b2:5d:1a:56:02
AuthorityKeyId: 25:45:81:68:50:26:38:3d:3b:2d:2c:be:cd:6a:d9:b6:3d:b3:66:63

Fingerprint (sha1): d1:a6:48:95:26:5a:ef:fd:9d:df:b9:d9:27:e4:05:3a:3c:59:99:b1
Fingerprint (sha256): ed:8c:ad:f1:12:cd:a4:81:cc:70:75:d7:e7:e1:13:11:9f:98:f3:ba:3d:a2:b2:69:10:97:fa:b7:d8:6d:f1:85

Issuing Certificate URL: http://certificates.starfieldtech.com/repository/sfig2.crt

Revocation information

OCSP Server: http://ocsp.starfieldtech.com/
CRL Distribution Point: http://crl.starfieldtech.com/sfig2s1-12.crl

Check the revocation status for certificate forum.gphilfe.de

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for forum.gphilfe.de

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

forum.gphilfe.de
www.forum.gphilfe.de

Other certificates including the domain name gphilfe.de

(limited to 100 certificates)
shltm.de
shltm.de
mail.gphilfe.de
www.gphilfe.de
mail.gphilfe.de
gphilfe.de
gesund.gphilfe.de
shltm.de
fs.gphilfe.de
mail.gphilfe.de
www.gphilfe.de
forum.gphilfe.de
mail.gphilfe.de
forum.gphilfe.de

Certificate

The complete raw certificate details for forum.gphilfe.de in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwO4Zt4+UI7jbsheYLfAR
CQbFUrqPd+a6MzxzRLSv0FflSw8vOmT6ZB7S0lsNznQZ91EcL4mP1M56C6FIoPuk
b+fl7CeejMefVSpc3MHuUvI4WDRSTmSoz4S2TV0dpDccv0yYonCxslYo2//ke+lt
CfgjV1g1SpbK6dz6RZJtgwBWAbv+ihbNRygpaXnkjmOTouc+sytM5etg8VIHUQap
X8Kgr0/B3PDsbztU+lttpcIw4ldGdZjAIvFDccrt7GIVdRvyktyV/F1pZM9lI9wP
ttxMJQY3lWPNyURJdarkaJmjrT1Ls345x/NZnieHUzuLZGp9DAlQ7rhbI/aGi0eI
JQIDAQAB
-----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 2216401978978978187
 . . . . . . . . [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 2.5.4.8 (stateOrProvinceName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Arizona'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.7 (localityName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Scottsdale'
 . . . . . . . . . . . . [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 'Starfield Technologies, Inc.'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.11 (organizationalUnitName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'http://certs.starfieldtech.com/repository/'
 . . . . . . . . . . . . [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 'Starfield Secure Certificate Authority - G2'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2015-06-24 11:13:38 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-06-24 11:13:38 +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 2.5.4.11 (organizationalUnitName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Domain Control Validated'
 . . . . . . . . . . . . [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 'forum.gphilfe.de'
 . . . . . . . . [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 24355166264906396813830681723906052160693442778955161051854179628654069254844174674208869877206938149958035678017191669638351394308294626773083523461943161586105721059078755091435375150776369934613849239320977295448649535241393554515283820603611594770214837851900555622564470164151607578298280309243207479894309985348823551303191683933244911659414054362729068468544438686530209684483413342340017944754128968480544011254562703715556182541473761816006770952929031289757187656288749803669172153174565605530626863188126873522410575531197247081029711751831904110932714686325897887077764277555801690300686576325797985355813
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.19 (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 2.5.29.37 (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 2.5.29.15 (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 2.5.29.31 (cRLDistributionPoints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (53 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://crl.starfieldtech.com/sfig2s1-12.crl'
 . . . . . . . . . . . . . . . . [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 (82 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.16.840.1.114414.1.7.23.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://certificates.starfieldtech.com/repository/'
 . . . . . . . . . . . . . . . . [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 (118 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.starfieldtech.com/'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://certificates.starfieldtech.com/repository/sfig2.crt'
 . . . . . . . . . . . . . . . . [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 254581685026383d3b2d2cbecd6ad9b63db36663
 . . . . . . . . . . . . . . . . [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 (42 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'forum.gphilfe.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.forum.gphilfe.de'
 . . . . . . . . . . . . . . . . [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)
							81f36088d81bffd4d6d865b4ceec88b25d1a5602
 . . . . [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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