webmail.techtrain.eu

Issued by R3

About this certificate

This digital certificate with serial number 03:b0:6e:47:c2:aa:49:89:46:87:d2:8f:72:89:a7:35:5b:d8 was issued on by Let's Encrypt.

With 17 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=webmail.techtrain.eu

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:b0:6e:47:c2:aa:49:89:46:87:d2:8f:72:89:a7:35:5b:d8
Serial Number (int): 321373142054258215325681055610773599247320
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 3d:0b:ec:05:20:e6:75:39:97:2e:cc:c6:a7:55:f8:82:3d:ad:f5:8f
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): bb:a9:55:9f:f4:54:a0:ad:9d:3d:d6:14:09:cc:f8:99:c3:37:f4:13
Fingerprint (sha256): 6f:28:68:18:9d:c1:c8:bc:a2:29:d1:78:a6:64:0e:ce:ce:1f:e9:86:ce:d6:f9:96:95:bc:b7:52:e0:61:5b:93

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

Revocation information

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

Check the revocation status for certificate webmail.techtrain.eu

17

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for webmail.techtrain.eu

Public Key Algorithm

RSA

Key Size

2048

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

*.appladesign.net
*.coled-project.eu
*.eu.appladesign.net
*.osanna313.com
coled-project.eu
cpanel.techtrain.eu
cpcalendars.techtrain.eu
cpcontacts.techtrain.eu
mail.techtrain.eu
osanna313.com
techtrain.eu
webdisk.techtrain.eu
webmail.techtrain.eu
www.coled-project.eu.appladesign.net
www.osanna313.appladesign.net
www.techtrain.appladesign.net
www.techtrain.eu

Other certificates including the domain name techtrain.eu

(limited to 100 certificates)
techtrain.eu
techtrain.eu
techtrain.eu
techtrain.eu
techtrain.eu
osanna313.com
techtrain.eu
techtrain.eu
techtrain.eu
techtrain.eu
techtrain.eu
techtrain.eu
webmail.techtrain.eu
*.ahead-project.net
techtrain.eu
*.ahead-project.net
sicily-transfer.eu
techtrain.eu
techtrain.eu
techtrain.eu

Certificate

The complete raw certificate details for webmail.techtrain.eu in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1LpQan2GMv00y3JZrqh5
xQ6vvlgVc2I5nZXl+wXRmZXAZA6zXLcdSIrqCpBjVqxp4S6PqSrdGxnsjBt6+Wg2
yjUDFgFyQgRS+YcmAQNEWY/C5kk7lN8Ek/wcFW7d4RAsxp2Y5NHJlnhxEWsNbaCL
/FN3ZM4t7h5SLDk6qr/JpM9c5BdLChvfC2s2US+wBSGuTNkLljg25BFeqzrHla3j
eJZ5QdsSv7c5gDSBGpvlxH0dsR8ECQ5feewF6t+Dso158FipdKIrZEXVRm4W2nhH
57oUFs4eKG6XeH0PoBFTZecY3GeQcYS5CF+zYIgpI4ScjCtYtymNnHoH4NUG+sra
gwIDAQAB
-----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 321373142054258215325681055610773599247320
 . . . . . . . . [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 2023-12-04 02:54:56 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-03 02:54:55 +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 'webmail.techtrain.eu'
 . . . . . . . . [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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 26854395572024391105873166400257704800464299484127576627330364304956538302556109200227553176337132881438495926624822485554574122354083928549513802371027456264321226516014318518551929668796383168159759319886233529917480783787795073105009152309698416984239664524714673420426974050817638494945969497236628681031461507227761569222507388533811585639115646309308997193984785807297330793743770668573601521453520054224980161478826300554798912657988587798543993502575786473198876974073866629394529445497552949210586160966994731478007474658746355952679278864294689977584765598225813603931783377476549210451942462349145889495683
 . . . . . . . . . . . . . . . . . . . . [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)
							3d0bec0520e67539972eccc6a755f8823dadf58f
 . . . . . . . . . . . . . . . . [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 (382 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.appladesign.net'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.coled-project.eu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.eu.appladesign.net'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.osanna313.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'coled-project.eu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cpanel.techtrain.eu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cpcalendars.techtrain.eu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cpcontacts.techtrain.eu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.techtrain.eu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'osanna313.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'techtrain.eu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webdisk.techtrain.eu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.techtrain.eu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.coled-project.eu.appladesign.net'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.osanna313.appladesign.net'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.techtrain.appladesign.net'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.techtrain.eu'
 . . . . . . . . . . . . . . . . [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 1.3.6.1.4.1.11129.2.4.3 (CT Precertificate Poison)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [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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