muw.de
Issued by R3
About this certificate
This digital certificate with serial number 04:3c:fe:3e:61:ab:6b:4d:86:71:20:9c:04:ba:76:1a:dc:63 was issued on by Let's Encrypt.
With 2 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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=muw.de
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate will expire on
Certificate Details
Serial Number (hex): 04:3c:fe:3e:61:ab:6b:4d:86:71:20:9c:04:ba:76:1a:dc:63Serial Number (int): 369204033556606848147702777983465865010275
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 6c:22:f5:23:b0:17:0c:cf:79:43:96:23:fd:39:ce:67:e0:95:b8:ec
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): 07:3a:43:26:ef:c0:16:97:a5:9d:6f:a1:02:6d:1d:c8:cf:fe:7d:73
Fingerprint (sha256): 75:a5:cf:0e:7c:62:3b:27:27:8f:6c:a2:24:dd:40:bd:7f:4f:00:ed:d7:0d:ae:8e:64:a1:96:cc:97:41:a7:f8
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate muw.de
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for muw.de
Public Key Algorithm
ECDSA
Key Size
384
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
muw.de
www.muw.de
www.muw.de
Other certificates including the domain name muw.de
(limited to 100 certificates)
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app.muw.de
Certificate
The complete raw certificate details for muw.de in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIENzCCAx+gAwIBAgISBDz+PmGra02GcSCcBLp2GtxjMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yNDA0MjUwOTE4NThaFw0yNDA3MjQwOTE4NTdaMBExDzANBgNVBAMT Bm11dy5kZTB2MBAGByqGSM49AgEGBSuBBAAiA2IABCubkuL70zjkKNjUu985CiqL ld61Zx2ozaQuDh4iniMBza07U9nbm7ewPwMUt5Pk/1MLGiJ4XuyECpy2hUiqsaUf oNLUGQ9RLAFdz4NcxCvhhTJe1HPR/zxQLJ7FaINr8KOCAhQwggIQMA4GA1UdDwEB /wQEAwIHgDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/ BAIwADAdBgNVHQ4EFgQUbCL1I7AXDM95Q5Yj/TnOZ+CVuOwwHwYDVR0jBBgwFoAU FC6zF7dYVsuuUAlA5h+vnYsUwsYwVQYIKwYBBQUHAQEESTBHMCEGCCsGAQUFBzAB hhVodHRwOi8vcjMuby5sZW5jci5vcmcwIgYIKwYBBQUHMAKGFmh0dHA6Ly9yMy5p LmxlbmNyLm9yZy8wHQYDVR0RBBYwFIIGbXV3LmRlggp3d3cubXV3LmRlMBMGA1Ud IAQMMAowCAYGZ4EMAQIBMIIBBAYKKwYBBAHWeQIEAgSB9QSB8gDwAHYAGZgQcQnw 1lIuMIDSnj9ku4NuKMz5D1KO7t/OSj8WtMoAAAGPFMP5OgAABAMARzBFAiEAg2kZ vwoCxg1gF07PFCPhRVSscHecaZAPdMlqJxFEdX0CIBSkBz1wk2HvnxW0Cmm+KC1i QfzCO/izk2audYzc7befAHYAdv+IPwq2+5VRwmHM9Ye6NLSkzbsp3GhCCp/mZ0xa OnQAAAGPFMP5XwAABAMARzBFAiEA2yOZDPCyTxmMhTk5KMv2t7O31Pre8QcZKggo qZmVkVcCIGSm5tFqri3DfTwsgFaQb4Bu0zyABDQJdvcpryoFhWr0MA0GCSqGSIb3 DQEBCwUAA4IBAQCGh4IoQIuY4UYfN0eFfE/FGhwwdSIaMONQoJVvN6MnfAalMw0P 35JthYsmNseNiuOq1/vELW9PhzOhIbFH8/Ss/9rEZnCGlnfGa6rxzj0f8PLa0kYb cNXR3uEtrlICgPPsctwh/NQhY0EM8udhSoz+ndsUmC8Tfe/7rxVWpjQ/KesQOQyK wRLUeFkZmKjz0pACiNpZwVBSpY7UqwXyiU2+I/LIxqWckidI2dlnaS9Lj5do5x6y F90huHZ+pCAUaci1OcHhH4izpc4oyhEpidix46Up4bkRrroseNuMWgYg/kyHLsIz UxyMwT5zvhYaARUHHsYvrqMJxQLjSCvJxp9W -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MHYwEAYHKoZIzj0CAQYFK4EEACIDYgAEK5uS4vvTOOQo2NS73zkKKouV3rVnHajN pC4OHiKeIwHNrTtT2dubt7A/AxS3k+T/UwsaInhe7IQKnLaFSKqxpR+g0tQZD1Es AV3Pg1zEK+GFMl7Uc9H/PFAsnsVog2vw -----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 369204033556606848147702777983465865010275 . . . . . . . . [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 2024-04-25 09:18:58 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-24 09:18:57 +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 'muw.de' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.2.1 (ecPublicKey) . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.132.0.34 (secp384r1) . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (776 bits) 00042b9b92e2fbd338e428d8d4bbdf390a2a8b95deb5671da8cda42e0e1e229e2301cdad3b53d9db9bb7b03f0314b793e4ff530b1a22785eec840a9cb68548aab1a51fa0d2d4190f512c015dcf835cc42be185325ed473d1ff3c502c9ec568836bf0 . . . . . . . . [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) 6c22f523b0170ccf79439623fd39ce67e095b8ec . . . . . . . . . . . . . . . . [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 (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'muw.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.muw.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 (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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f00076001998107109f0d6522e3080d29e3f64bb836e28ccf90f528eeedfce4a3f16b4ca0000018f14c3f93a0000040300473045022100836919bf0a02c60d60174ecf1423e14554ac70779c69900f74c96a271144757d022014a4073d709361ef9f15b40a69be282d6241fcc23bf8b39366ae758cdcedb79f00760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018f14c3f95f0000040300473045022100db23990cf0b24f198c85393928cbf6b7b3b7d4fadef107192a0828a999959157022064a6e6d16aae2dc37d3c2c8056906f806ed33c8004340976f729af2a05856af4 . . . . [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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