csd.lanxess.cn
Issued by R3
About this certificate
This digital certificate with serial number 03:a9:0e:24:ec:32:71:9c:6a:21:20:29:27:a2:ac:5f:f5:79 was issued on by Let's Encrypt.
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=csd.lanxess.cn
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:a9:0e:24:ec:32:71:9c:6a:21:20:29:27:a2:ac:5f:f5:79Serial Number (int): 318863378710192471828424303532101943162233
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 48:a0:3c:65:b5:e8:5e:e1:0b:13:7b:71:f1:5d:21:82:c6:85:c3:76
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): c3:29:a0:65:83:04:a8:2c:d8:a1:cd:a6:8d:99:e2:0c:4c:f8:e3:1e
Fingerprint (sha256): aa:5d:58:e9:ae:36:d2:70:6e:66:e7:c0:29:52:43:67:74:e1:30:24:99:15:a2:37:9c:ba:67:dc:4b:c0:49:1c
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate csd.lanxess.cn
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for csd.lanxess.cn
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
csd.lanxess.cn
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Certificate
The complete raw certificate details for csd.lanxess.cn in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIE6DCCA9CgAwIBAgISA6kOJOwycZxqISApJ6KsX/V5MA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMzEwMjAyMTU2NDZaFw0yNDAxMTgyMTU2NDVaMBkxFzAVBgNVBAMT DmNzZC5sYW54ZXNzLmNuMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA zZgsdCCfvjXYQghEKujHanaEX9zwQpW7DnndmcDpod80MQ/xz7hvpq5c5D2JQEFC ilDMHEwnXvqmche+cFPFteu6haLiHylOe/sm+R0OPFLwDAougc9Vx7IcO9wQYn+h qKyyHW7T31XmV04uq0gYCm45DSkVBL6ya7tUkIEmAPvbEVUpVYJqkZ5ZhUn/4SGc q8yWgAr1GcyhKHcGzeN1jU1cNdOsZS+oyBleh+qQ2iFZb4gaMh49y+vcfVhxX1ki Ynj5B/RyarB02B/DGiuwrwzVO/AsSP6N+n+buscOmsnI7zEhtd1sf+w2HTUcqNBm BL3j7jEbaxgSc2BMLTgqOQIDAQABo4ICDzCCAgswDgYDVR0PAQH/BAQDAgWgMB0G A1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1Ud DgQWBBRIoDxltehe4QsTe3HxXSGCxoXDdjAfBgNVHSMEGDAWgBQULrMXt1hWy65Q CUDmH6+dixTCxjBVBggrBgEFBQcBAQRJMEcwIQYIKwYBBQUHMAGGFWh0dHA6Ly9y My5vLmxlbmNyLm9yZzAiBggrBgEFBQcwAoYWaHR0cDovL3IzLmkubGVuY3Iub3Jn LzAZBgNVHREEEjAQgg5jc2QubGFueGVzcy5jbjATBgNVHSAEDDAKMAgGBmeBDAEC ATCCAQMGCisGAQQB1nkCBAIEgfQEgfEA7wB1ADtTd3U+LbmAToswWwb+QDtn2E/D 9Me9AA0tcm/h+tQXAAABi09OM1kAAAQDAEYwRAIgamvcpxsMPlLwc9oBwDrJ7R+i t/yvYej9rwxSJOYwEQwCIDHsiI2B8yAo0e51tgsqmJ6aoXEU/kOrZ2gjAdq1NDhf AHYA7s3QZNXbGs7FXLedtM0TojKHRny87N7DUUhZRnEftZsAAAGLT04ziQAABAMA RzBFAiEAjJqFU+M2MqLDbGGNal1kivzdU02xPaD87Fr7aUofyu0CIDj9dA+zomTg 92hCEu7Mrq3RNN/qkNEBX+FXmTzZiiBKMA0GCSqGSIb3DQEBCwUAA4IBAQCc4pgA CG0zZ27ejXXsl0te6Gs/ewoQTOhbA/ra8RWRC7k+UUIJZiy12xp+iAGBZC8hsq21 cHsDcB3iPI4tHVwB/UUS8a+QTH9ryLH93HQy4ST5sKGaCSbY5oKg0U/hiTb19Z92 tLiOd4eD0vbazzQ8NxAmgsYiXPutPau0QzbR6PaePd9fbAQ28a57NLrHDoZayzeb wb5WqxfnSSFQrb3OEMwgSb/cu1jX9Sv25K2HL/s/egy6oCpxQmrTKiTZC4hwu0B4 2K0sfRkNVGWyC9ksmVYct+jKFuTEA4xiiS0wcFSNF0OY+LfK/bQvtdoYhZRpa7tB Jr+sKcmt3kaxYAhm -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzZgsdCCfvjXYQghEKujH anaEX9zwQpW7DnndmcDpod80MQ/xz7hvpq5c5D2JQEFCilDMHEwnXvqmche+cFPF teu6haLiHylOe/sm+R0OPFLwDAougc9Vx7IcO9wQYn+hqKyyHW7T31XmV04uq0gY Cm45DSkVBL6ya7tUkIEmAPvbEVUpVYJqkZ5ZhUn/4SGcq8yWgAr1GcyhKHcGzeN1 jU1cNdOsZS+oyBleh+qQ2iFZb4gaMh49y+vcfVhxX1kiYnj5B/RyarB02B/DGiuw rwzVO/AsSP6N+n+buscOmsnI7zEhtd1sf+w2HTUcqNBmBL3j7jEbaxgSc2BMLTgq OQIDAQAB -----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 318863378710192471828424303532101943162233 . . . . . . . . [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 2023-10-20 21:56:46 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-18 21:56:45 +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 'csd.lanxess.cn' . . . . . . . . [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 25953892140125017494430752311736729950307003681372987047356745959365817232880473142486809501965457208649010438395846649805497278359903113652340767903781981168141393953025838200544576155907777704478378502733632614528748639180678784997320809234512959482232348492428974839124018393234289292991380849921954168047502497730169475562062106901574868734057463607853996135653574752603006330028747034113108083102537934700158349579462130843487331189013515242447287154041702298057013814128660994062882768716269387709554221472286423813092451088663276640753345286204582484677668237419950467551721375366996649097643900959155579005497 . . . . . . . . . . . . . . . . . . . . [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) 48a03c65b5e85ee10b137b71f15d2182c685c376 . . . . . . . . . . . . . . . . [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 (18 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'csd.lanxess.cn' . . . . . . . . . . . . . . . . [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) 00ef0075003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018b4f4e3359000004030046304402206a6bdca71b0c3e52f073da01c03ac9ed1fa2b7fcaf61e8fdaf0c5224e630110c022031ec888d81f32028d1ee75b60b2a989e9aa17114fe43ab67682301dab534385f007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018b4f4e338900000403004730450221008c9a8553e33632a2c36c618d6a5d648afcdd534db13da0fcec5afb694a1fcaed022038fd740fb3a264e0f7684212eeccaeadd134dfea90d1015fe157993cd98a204a . . . . [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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