mail.fetla.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:75:c0:29:93:19:9e:3f:ed:a4:1f:12:f8:8e:63:9b:dd:44 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): 03:75:c0:29:93:19:9e:3f:ed:a4:1f:12:f8:8e:63:9b:dd:44
Serial Number (int): 301405322367936335656375758879068729892164
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 38:19:8d:b6:6f:6a:59:4a:4e:73:a2:1b:66:24:74:45:e8:2d:89:32
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): d8:9c:26:4a:ca:95:27:1a:bc:37:0a:b4:dd:b1:56:1a:2a:c1:6b:7c
Fingerprint (sha256): fc:fc:76:7c:b2:b6:b4:9f:60:6d:bc:ed:71:f7:08:ff:d1:53:5c:8b:c8:1f:e3:7e:3a:ff:42:b4:00:d1:45:07

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-----
MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEApNq8OmO8VfCcvkGQciGi
zxZ36bjj/Rq4akZYrLZ6nL7BD2xbSDblktO8SKg7GYGEYPKuvDfk0JgsoK/FSvwB
UezXVkdVnkIsAxy8YNlFJ90Eq8d3S5CD4FhTb5LndDDsVyfREZcgkrY/jtQvmqRY
bjaqA/A8IA1qSf4Q7w2u1Z1KTGY90qZhovj3tv6Tpx7JziEb9UxjyQU73mLatZkA
+kOrJiGEvTUbPHvz+q7zPbtCuRog4cToR2PwdwteCSi8U2E/ltP4RJxEVZHJAuSn
llEKG9W3YpuEHRO1MQXDoCSb0lECxxhcxW4qHyHPRiUF4mvmg6n3lv0VLbwaVxYM
yPvuWAW3r06d6+g14QXRSjgjatMO3UkPDl8N5kihRseM1DLrg6jOVAgy1oDYOO/A
5AglcJTpLpDrMxpaXMkjQbyPbzofwo6W1+SNbXqtKzVpJJH/i0gl4rvhk+rmW9mA
JaXtaA0DxLczyGLmGHtJcaI/tzmuFUDtszPq7UT7i0SiqgW/Bl41vQ4LLqNnlvRl
J2Q1v1Pftelj+c04NL+uh3VJeMqc+zdvFWegUKLdCtkrftg+358oV10rOutrzQNz
DK6rcuwdZHD+rrMwTtv++Xc9t0wvDhMlilATxrUdcZvZl22m0AGWYvle5QMGrsR1
tZ/9E/vENqOpYNHlNIc1MskCAwEAAQ==
-----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 301405322367936335656375758879068729892164
 . . . . . . . . [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 2016-08-09 18:00:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2016-11-07 18:00:00 +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 672547416335839816617871375186450452993889583220030372071844643776472414597867334872175023045255363561589530205745697629755229156500168190014689142919624756160886449720318722010790040054825198630792353750557977491511083354811571204152527052313233646105606824096451404516927632345008441386179103157634247730336753848280495542572370583470097862401144019614402413878232554770032968630491959722973756055825974419988507556856091003806098266291582379332775351402117252026066430848663374740675832207172155199935598627715739666393520986227564486508217215880111284394212581150315165429128081291670650837986990872671006529024624376676751991693377235842979840812943254744508022514945677584078717118063464838887594548823430492303004521456850504581737807477129834302853408375319331531371849859131735272438108067324342191865185914669116987497106882020028225868315136345929904476549506575444184123312736155537707454697820179570343332731055486115550623658437655299087796989826046527410053116188612491186000222231082411126200931594081845568325552377373756479243766057242262190983724245078912472056029859917446410358868898293933032204162583526214699141761560076812187867057810351248281634170133112650569674437897713836315973529725257765577842257900233
 . . . . . . . . . . . . . . . . . . . . [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)
							38198db66f6a594a4e73a21b66247445e82d8932
 . . . . . . . . . . . . . . . . [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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