mail.kjg-fulda.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:5f:f5:c5:b9:fc:77:0a:b7:bb:dd:1b:86:49:6d:3c:ef:ed 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.kjg-fulda.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:5f:f5:c5:b9:fc:77:0a:b7:bb:dd:1b:86:49:6d:3c:ef:ed
Serial Number (int): 293990370166466445021035657147131503636461
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 38:e4:3c:54:e8:2b:1c:6d:74:f1:cd:ae:1d:a0:4d:08:a7:55:ee:57
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 68:12:20:b8:10:54:fc:ce:ad:9e:86:27:93:b9:45:15:0f:28:3e:89
Fingerprint (sha256): 01:4a:74:30:14:8d:02:17:2c:13:f3:02:28:a7:0f:12:eb:9f:51:d5:19:58:1e:a2:a5:2e:5c:82:f2:51:7e:e8

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.kjg-fulda.de

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mail.kjg-fulda.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

8 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

mail.kjg-fulda.de

Other certificates including the domain name kjg-fulda.de

(limited to 100 certificates)

Certificate

The complete raw certificate details for mail.kjg-fulda.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 293990370166466445021035657147131503636461
 . . . . . . . . [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 2016-09-13 09:37:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2016-12-12 09:37:00 +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.kjg-fulda.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 748283355228509848543748888941851723114988984772085290504951976523679499705725839411224519500436588207644646273698537669603183023545217831739964072769326269569596795076311584326296000640862255726955786879934039812048368926845422327467345268017663619288631081949312916774728484671343959542221597813782516734824965323458418287361791381087419664186142841921201021254516092309455739778954874548939341850990047013558304901508652179023342100106721913014223290208088131060109883413944280701802894888819833015725443966276332296606115089853814737786671336497661338275792626558059905654849329689232178843564221316342245307369743035084362844723080357829775861576798201327310397060445626218532717626247696270972162819068555465215682259678781336546945232808861514789027478893098228522966415764127274038547348090387144150895751570038678943774880618177834998585381245030134041244868810340126009786374553877165028885743549617836551412847392257226747693529699366027057671009423384270109071781416941745871782379208758807657455021044813094877654711775852010414909665428712585539594521450801717795781012076836316764273197897247989068525900965070260424429450666411769578264721121040894270576826761099644754306495338718327671099170234454955198031340053621
 . . . . . . . . . . . . . . . . . . . . [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)
							38e43c54e82b1c6d74f1cdae1da04d08a755ee57
 . . . . . . . . . . . . . . . . [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 (21 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.kjg-fulda.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 (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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