rt-forum.de

Issued by R3

About this certificate

This digital certificate with serial number 04:b9:30:b1:7a:03:b9:1a:cd:2e:77:4b:6f:b7:f3:f8:83:19 was issued on by Let's Encrypt.

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=rt-forum.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:b9:30:b1:7a:03:b9:1a:cd:2e:77:4b:6f:b7:f3:f8:83:19
Serial Number (int): 411466106062505182214486651876986949501721
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 23:b6:b5:b1:8d:d2:10:f3:ae:af:94:56:cb:ef:7f:57:c2:44:80:4c
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 73:31:95:d1:1d:5f:88:d6:b3:5b:18:4b:61:e3:c6:5e:e5:8e:ea:0a
Fingerprint (sha256): 53:17:11:09:8b:25:35:b2:d3:fb:09:d4:e1:50:71:8b:1f:bb:e2:0c:97:97:ef:95:82:c5:e9:82:86:97:42:ad

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate rt-forum.de

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for rt-forum.de

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

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

rt-forum.de
www.rt-forum.de

Other certificates including the domain name rt-forum.de

(limited to 100 certificates)
rt-forum.de
rt-forum.de
rt-forum.de
rt-forum.de
rt-forum.de
rt-forum.de
rt-forum.de
rt-forum.de
rt-forum.de
rt-forum.de
rt-forum.de
rt-forum.de
rt-forum.de
rt-forum.de
rt-forum.de
rt-forum.de
rt-forum.de
rt-forum.de
rt-forum.de
rt-forum.de
rt-forum.de
rt-forum.de
rt-forum.de
rt-forum.de
rt-forum.de

Certificate

The complete raw certificate details for rt-forum.de 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 411466106062505182214486651876986949501721
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-07-25 04:09:29 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-10-23 04:09:28 +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 'rt-forum.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 746490958783993261270949132166859580560716975720329831728119007970144783581045519505053940391919756504991893041648378520014231312115509236557479349640275988915949477194174904715919280207958315472024315539368005602921201625820838779600019238812351332009023865452667934102787143342136314948651776126269494389527405007081489762193166115046020952530270746000422983645290894410234065300314459583932582362547989983134073797025053297068338749447515760906574376106144787068160592527780553325445049720390720329695394640430407655008294412671230898858746387545024274263551307257363838102717532962828304639765049670385183332218321836558543552409623921191651793380184238615415562070649979484726456590605315771763843018182184465207561638164434019044675375355795652462746622123039516540138970714915591019710128436152466552918211349342614880401994333752655224238831520851736049028489974319074570668119916646413306016250129661154399063740928438701225945170699981032135280385689354743896869296818593794458841198875488518434737568310502333422334104838799081656570686045420234972391255147275677743518657726962907139141920350321116951699214478111654599387828495898034069860624902574054212057598158097764406631948127644440362747417369308609807711599605433
 . . . . . . . . . . . . . . . . . . . . [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)
							23b6b5b18dd210f3aeaf9456cbef7f57c244804c
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (32 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'rt-forum.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.rt-forum.de'
 . . . . . . . . . . . . . . . . [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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007500b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb499000001898b73ced80000040300463044022022d28d15aacab0eba0b874b73f6321231a63eb00131a88d1a240adbf6b16547a0220334f4259f21255a93343c999b9d6d4b53228e303cb9300f0659097d8decd47e60076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb52000001898b73cee6000004030047304502202ad22b189c7b15dd6c364c4a2913296574dad0f200d34d39e45d65764ba720b1022100dfb7da0db46ef8614325ee4f4f8b22b80de050bfab8bcd67b07960fad2237e8a
 . . . . [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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