atwell.lu
Issued by R3
About this certificate
This digital certificate with serial number 04:25:6f:d2:90:0a:3f:0f:5c:55:30:57:e1:7a:94:7e:a5:fd 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=atwell.lu
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:25:6f:d2:90:0a:3f:0f:5c:55:30:57:e1:7a:94:7e:a5:fdSerial Number (int): 361188228914466908386853169027159292814845
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 25:fd:42:53:d0:26:6e:7d:6a:c1:5c:79:92:13:bd:c5:11:ac:75:d5
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): 9f:f9:ab:b3:99:d3:5f:8c:a2:0d:75:47:de:95:a3:ab:28:cd:52:56
Fingerprint (sha256): 16:88:69:48:88:83:94:85:bf:f2:12:3f:52:69:c5:9a:d5:fb:8c:71:72:2c:1c:1d:08:df:93:5f:bb:4d:0c:de
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate atwell.lu
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for atwell.lu
Public Key Algorithm
ECDSA
Key Size
256
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
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
atwell.lu
www.atwell.lu
www.atwell.lu
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projects.nexusimprovement.com
servicedesk.solosystem.co.uk
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support.westhost.com
projects.atwell.lu
projects.omerosystems.com
atwell.lu
service.idenprotect.com
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atwell.lu
it-support.cairo3a.org
assist.east-diagnostics.com
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projects.swish-it.com
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autodiscover.atwell.lu
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mail.atwell.lu
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projects.atwell.lu
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podrska.east-diagnostics.com
atwell.lu
projects.samepage.digital
webmail.atwell.lu
support.fortress-cybersecurity.fr
projects.atwell.lu
atwell.lu
projects.atwell.lu
mail.atwell.lu
atwell.lu
atwell.lu
servicedesk.solosystem.co.uk
projects.spitzbub.org
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projects.lockeandpartners.com
atwell.lu
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projects.yarvis.de
mail.rtfc1.reachthefirst.com
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projects.swish-it.com
Certificate
The complete raw certificate details for atwell.lu in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIEIjCCAwqgAwIBAgISBCVv0pAKPw9cVTBX4XqUfqX9MA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMzA5MDExMTEyNDFaFw0yMzExMzAxMTEyNDBaMBQxEjAQBgNVBAMT CWF0d2VsbC5sdTBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABEKBC5cWG23GZ8af mPTJ++V1VvcAMVtBXAe0peipZwD5xqvfK9tO5NwGaZZGiT1T9+1nJCQz4OPkqvW9 LaRvf96jggIZMIICFTAOBgNVHQ8BAf8EBAMCB4AwHQYDVR0lBBYwFAYIKwYBBQUH AwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFCX9QlPQJm59asFc eZITvcURrHXVMB8GA1UdIwQYMBaAFBQusxe3WFbLrlAJQOYfr52LFMLGMFUGCCsG AQUFBwEBBEkwRzAhBggrBgEFBQcwAYYVaHR0cDovL3IzLm8ubGVuY3Iub3JnMCIG CCsGAQUFBzAChhZodHRwOi8vcjMuaS5sZW5jci5vcmcvMCMGA1UdEQQcMBqCCWF0 d2VsbC5sdYINd3d3LmF0d2VsbC5sdTATBgNVHSAEDDAKMAgGBmeBDAECATCCAQMG CisGAQQB1nkCBAIEgfQEgfEA7wB2ALc++yTfnE26dfI5xbpY9Gxd/ELPep81xJ4d CYEl7bSZAAABilCo6okAAAQDAEcwRQIgTLKyRQ4SqucHXuQ/msJFsUszD5prQK60 +Rb8IMOWpb0CIQCGDq3O23Sai+c/EhpUgtl9aBSB5s5U3pnNd2xu90sYSgB1AOg+ 0No+9QY1MudXKLyJa8kD08vREWvs62nhd31tBr1uAAABilCo6sEAAAQDAEYwRAIg TRqm/SJdS3qVc2E+d85ZDYTeh349Scb/OmMwUjezpvkCIDPyaJ6M16HHs2rYQhdN ho5oQBQ+l4VKL2AYPnRqJ5iTMA0GCSqGSIb3DQEBCwUAA4IBAQA3CYTkH84c5WyX 9J+BJFriNViN8HOJxXd9G/uu29fJtCw8gKRrjc8+QSaXiBoE4HyHeffkN7JMMlHg gut+wglkV+Rwsmx2IwXrLLj9N1YKEhID6IUSVtjE8FrwInCVgJGNR7X/Rs9rsNU5 0jsgTtXjxK6UDvgRbZorPff0Fd28HUbm2nsiPnliPevCIZQHETDSJIRLzglKrj34 OgYNTavR45KoLQg15QaZYylv3Mit0AfCgBGgfUn0/QQndB3zMJ+u1Bwdmi3jgXKv ayWCHHsYcpKczWm3P5NoTi3WP4ohqlsSCfPA60zr/AeG8sJ41nFg3kb6WirgJ8Aj Um4xJl91 -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEQoELlxYbbcZnxp+Y9Mn75XVW9wAx W0FcB7Sl6KlnAPnGq98r207k3AZplkaJPVP37WckJDPg4+Sq9b0tpG9/3g== -----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 361188228914466908386853169027159292814845 . . . . . . . . [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 2023-09-01 11:12:41 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-11-30 11:12:40 +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 'atwell.lu' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.2.1 (ecPublicKey) . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.3.1.7 (prime256v1) . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (520 bits) 000442810b97161b6dc667c69f98f4c9fbe57556f700315b415c07b4a5e8a96700f9c6abdf2bdb4ee4dc06699646893d53f7ed67242433e0e3e4aaf5bd2da46f7fde . . . . . . . . [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 (1 bits) 0780 . . . . . . . . . . . . . . . . [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) 25fd4253d0266e7d6ac15c799213bdc511ac75d5 . . . . . . . . . . . . . . . . [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 (28 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'atwell.lu' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.atwell.lu' . . . . . . . . . . . . . . . . [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 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018a50a8ea89000004030047304502204cb2b2450e12aae7075ee43f9ac245b14b330f9a6b40aeb4f916fc20c396a5bd022100860eadcedb749a8be73f121a5482d97d681481e6ce54de99cd776c6ef74b184a007500e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e0000018a50a8eac1000004030046304402204d1aa6fd225d4b7a9573613e77ce590d84de877e3d49c6ff3a63305237b3a6f9022033f2689e8cd7a1c7b36ad842174d868e6840143e97854a2f60183e746a279893 . . . . [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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