mail.fetla.de

Issued by Let's Encrypt Authority X1

About this certificate

This digital certificate with serial number 01:d0:5c:0f:8c:3b:7a:64:63:a3:d6:93:d4:10:d7:84:e7:ea 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): 01:d0:5c:0f:8c:3b:7a:64:63:a3:d6:93:d4:10:d7:84:e7:ea
Serial Number (int): 158013387955630221963619579910491373627370
Serial Number lenght: 137 bits, 18 octets

SubjectKeyId: 81:f0:b3:c2:a2:09:0a:00:1c:41:44:12:53:05:f7:5e:86:e2:df:3f
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): f9:1e:81:77:2e:88:8a:3f:5f:f6:f9:42:36:12:91:66:f5:0a:07:b4
Fingerprint (sha256): 58:7b:64:6d:92:cd:64:4e:33:63:04:38:b6:8e:2d:5f:c4:29:a1:e3:9c:45:cd:d5:d7:92:c3:9a:ac:cb:e3:7c

Issuing Certificate URL: http://cert.int-x1.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x1.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-----
MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAyh8mqZld0nyOKkgWTLYX
OMtzWY0nMbB51Wq+iTxPjgiU7l2Cs9GUgx56DL/OAV++T/SLuk5x5MoKHQTGK0A3
nyvvXX8B+4Z+L/iuBYMJWzJL4VakI0vVD22nlSU9e/thxz1rzKkMotFYKN6NOjWC
iXZtYjDe8OgdCiVbAMvoe9N484Z5LwYbCK2hGgzSxxEw0n8twLxJK8y0CZBduErm
ZHFvb8X5+ixsFu98Fdz7pPzSGrFybrBN3aD869y3a4oG8W8SupHg2zLtlvw/GphF
6iepnv+idn7Rd3uPMZmsdANRmaKCCEQT/Ddv0JI7A36kSPgj8NQCPKsbl07JVN2L
BDOESu8hRJ4v5iU/F1l7xYP/0AAxPrgQLevPh8vsb9tOkjDv3xkyvGxduNGVdF7T
xjTYLQDSW4gcJQLL2U8fiqM3l43AVcvMasGKvmnqaWxJMuI6i9Yz0ukiN5u6n9B4
967+rIZoxl6YsFSASU6sxikYX9bF9cEcCUjXLhnwhJ4K9Um/dLI5tfPEJr4s+lC1
9DZ9xri8MsSjE8PoVZuuAIY/z9v9MYKmWgQ9P/eFCJCV6gRyoFVBJuTJJ+8rtWxT
7HgE5GjoUfUqW4qaGwP1vtHu5LMA/9LSzgz/DqxuRLuXAs51y8BSIGgojh9qFYKJ
dlfcZ0AT65Ms5qEAQula4rsCAwEAAQ==
-----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 158013387955630221963619579910491373627370
 . . . . . . . . [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 X1'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2016-03-01 21:19:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2016-05-30 21:19:00 +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 824584527895889191778330474897887282001520308256190694789090297635449300168392109194543736021514528066379952988338101572256989733076621535101901835786198720108516163763481757503953148270582368160665700831000869312162806929122402848704721262991597922923157597630302538532753531767078725109439749206866039001756249433397790266344954096034136016929698036609996504462226600029988168957148930922069469088018598404334339580119560315553871201229931688549658802149631698645458010627777662352798186786582812755093145703834101948207414884849870782311652827119776448909475394381405938723227488560112436027320114311903595470427637823767903038972498829883473341147863085619557372870503941680710690106882836426410474174806532001276376988330618319687220747689579652447910331819951208078457697702580665068373779929532511825319153608979596354567823979003656134152895141477190483959979075960701719320349329332981616347145868203018793098117018094123442238049857793241213653953141719113212780470944099404725962475249293525088143066207599022372972701900939948127034773887342514886305867163892507748736538131702763850267151043741007227954448840512330784371301799175524956631371250870198175266461924521554476959144434570708062365426644775569442942928741051
 . . . . . . . . . . . . . . . . . . . . [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)
							81f0b3c2a2090a001c4144125305f75e86e2df3f
 . . . . . . . . . . . . . . . . [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-x1.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-x1.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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