mail.fetla.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:54:62:6f:08:a3:44:3d:f7:c3:fc:ef:8b:cf:dc:e3:46:de 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=mail.fetla.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:54:62:6f:08:a3:44:3d:f7:c3:fc:ef:8b:cf:dc:e3:46:de
Serial Number (int): 290051417480372377206427666188362752149214
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 2f:ff:82:b6:be:54:fa:c2:09:31:23:85:a5:ad:d9:82:9d:9c:4e:03
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): f9:db:b0:5e:3b:cd:be:de:78:99:df:ff:ab:48:00:0d:de:81:43:9d
Fingerprint (sha256): ec:cc:ac:cd:7d:b9:60:c2:c3:4a:48:e5:6f:81:41:c0:1d:3b:e2:db:80:5b:56:7c:2c:14:04:e6:75:53:e3:30

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.fetla.de

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mail.fetla.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.fetla.de
webmail.fetla.de

Other certificates including the domain name fetla.de

(limited to 100 certificates)

Certificate

The complete raw certificate details for mail.fetla.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 290051417480372377206427666188362752149214
 . . . . . . . . [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 2016-10-19 14:18:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-01-17 14:18:00 +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.fetla.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 986957396850500150568300130333459539442115100553070964598419459520346801558230433745965785577119550192666516968144685496741692079462918713367002022796327573663625802457662728082073886140708300041378075822826399477294968492220369390086387290241877554037537120148495121372759317715755073619860890583312859131029468212074358602249614990134201811736443257835264843712199101487499458269768659695824020881004204777450583534246046911738710238765848012189701887949012551921070260835752460606035062535797552583390401619335431908995905643437790669329975876742692282432268180657164794608205470961116895298295182483795348298933296595908641395191662508428785135184966379523395140965879916953201990482800201766774945857084315378272509429080209766404874947872562022988853213051508615405007000648447364232983619113906261673825675491306312926364934157699298342021059558047594942377435184519922686363352118412604533709753489288082188735512318135742687878244516121276922013067252946668310229508285576103962018062639314794701514126125035891025373620798833324961285743034698515385641279255897505993952342317607598422702398415138365549677851329685960261962111722049832192327390209843723116258368923073008331847795292942266777150538361304130016369612719967
 . . . . . . . . . . . . . . . . . . . . [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)
							2fff82b6be54fac209312385a5add9829d9c4e03
 . . . . . . . . . . . . . . . . [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 (35 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.fetla.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.fetla.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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