mx2.blckr.de

Issued by Let's Encrypt Authority X1

About this certificate


This digital certificate with serial number 01:cf:c6:79:47:cc:58:a1:f4:48:db:6b:b2:5d:61:5a:9c:21 was issued on by Let's Encrypt .

While the 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.

mx2.blckr.de

Let's Encrypt

Organization: Let's Encrypt

Time since certificate expired

This certificate has expire since

Certificate Details

Serial Number (hex): 01:cf:c6:79:47:cc:58:a1:f4:48:db:6b:b2:5d:61:5a:9c:21
Serial Number (int): 157814552751720862124221608840114210511905
Serial Number lenght: 137 bits, 18 octets

SubjectKeyId: 19:4b:bb:db:61:6c:1c:e3:ca:52:bc:06:f7:7b:60:9f:e6:73:83:2c
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): c0:84:d1:3a:d9:94:16:65:50:ed:40:7a:83:a2:07:78:21:70:8d:64
Fingerprint (sha256): 3f:e3:09:6f:e9:68:06:76:6c:35:a9:f0:4d:ca:c9:42:02:1e:66:06:ce:c3:d5:c5:78:ab:72:22:62:10:e9:40

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

Revocation information

OCSP Server: http://ocsp.int-x1.letsencrypt.org/

Check the revocation status for the current certificate on mx2.blckr.de
1
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details about this certificate


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

This certificate doesn't contain any other subject alternative names besides the common name of the subject: mx2.blckr.de

Certificate

The complete raw certificate details in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE----- MIIF/DCCBOSgAwIBAgISAc/GeUfMWKH0SNtrsl1hWpwhMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMTAeFw0xNTEyMjgxOTA0MDBaFw0x NjAzMjcxOTA0MDBaMBcxFTATBgNVBAMTDG14Mi5ibGNrci5kZTCCAiIwDQYJKoZI hvcNAQEBBQADggIPADCCAgoCggIBAOjB8f7MNwTEtTXZ+uk0kp+j9/GfhIueN+Ng oTn6DVE97D8JW8btW1nyp6cQ2Bqcsi+9IDgp+jVIFC7rzqr+FQadtfSLPCEY9M+X uYCsWLyReXgCj5o1yjhDRKFHDDVTm6eTSDQa9zbuY5+FUbVlbdFoGOOnnP0FKHR7 sCT9fyOLC867U8fJdVo0+Yzmh1s81i15l+XoOwg40iN7n1JVdrn+x5AZIaMR8m/v dfGdFWg7IVZ/YuvctJ/Jf0UByI1mWrPvn+SJPUPKSR/aaHUo0F9D9vzW1lS5YvgB 77M+rG7AH8tSTlCWQasHAN/DiMqySky40mc/DGh2Sw1gh5BX98RNHmwRuiuQt/gs fciIb9ZkuEpdWOJa/1aGr810kUFjnLpp8oKr3Me79G5oqn+QZcG63lY5iBWtc8Cs dpGAuBAsUjCnLd3yH2qIcx2FOieU4GtAn5hVniYwong5nrMpS5E39FDU13hzRdRC gv3n/1NHUyjwsCsYqxFQICYivR1ZXjfF7sB2tPtThBWj7/imPXtkULMaOWwhzcCd HGbB2vIstbEZGy+YNqXZ0jqzKZ2IpAbaW6wNybJHJL0GN30KIPoIHi8ENm7WZ3XW 71ysrudCWpEV7lOEmNWj0cJjh4ihZK2WXdA5uGJgCI5a7HHmfPIXA+ZuX7E9ybmM fu/K1E93AgMBAAGjggINMIICCTAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYI KwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFBlLu9th bBzjylK8Bvd7YJ/mc4MsMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyh MHAGCCsGAQUFBwEBBGQwYjAvBggrBgEFBQcwAYYjaHR0cDovL29jc3AuaW50LXgx LmxldHNlbmNyeXB0Lm9yZy8wLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14 MS5sZXRzZW5jcnlwdC5vcmcvMBcGA1UdEQQQMA6CDG14Mi5ibGNrci5kZTCB/gYD VR0gBIH2MIHzMAgGBmeBDAECATCB5gYLKwYBBAGC3xMBAQEwgdYwJgYIKwYBBQUH AgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5cHQub3JnMIGrBggrBgEFBQcCAjCBngyB m1RoaXMgQ2VydGlmaWNhdGUgbWF5IG9ubHkgYmUgcmVsaWVkIHVwb24gYnkgUmVs eWluZyBQYXJ0aWVzIGFuZCBvbmx5IGluIGFjY29yZGFuY2Ugd2l0aCB0aGUgQ2Vy dGlmaWNhdGUgUG9saWN5IGZvdW5kIGF0IGh0dHBzOi8vbGV0c2VuY3J5cHQub3Jn L3JlcG9zaXRvcnkvMA0GCSqGSIb3DQEBCwUAA4IBAQAg8zaSRPMsduFtP27kbpqN sdG8FqFsHCrGc0+tCEyF3OYGPlZLaLxlM6tDvfXQK389j5Y4o/+1FC7DCJ40PWsv H9l4YgxYGtTVZKjcYaE+P92obSK76kzekhqekJErQJeYYktXygZcGaXaBVs6tAno kpx2ysfvxCPFftU6eRSrta3alSbLoHrdlXVvEhZpB0XgiJ5RdIwLV7wInzzDIbOd gwA7lkLAEO6WtKil7EBBUc+bCxdaA4ctKtKV9ZE/ulWorbdfCi9hlVDPhYKagCxd CN3bboT6Woq5KErHHvkjv2B8ehugtI97BYLybh3UUzu31Wh7zoYIr1RS1AtFu1zH -----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA6MHx/sw3BMS1Ndn66TSS n6P38Z+Ei54342ChOfoNUT3sPwlbxu1bWfKnpxDYGpyyL70gOCn6NUgULuvOqv4V Bp219Is8IRj0z5e5gKxYvJF5eAKPmjXKOENEoUcMNVObp5NINBr3Nu5jn4VRtWVt 0WgY46ec/QUodHuwJP1/I4sLzrtTx8l1WjT5jOaHWzzWLXmX5eg7CDjSI3ufUlV2 uf7HkBkhoxHyb+918Z0VaDshVn9i69y0n8l/RQHIjWZas++f5Ik9Q8pJH9podSjQ X0P2/NbWVLli+AHvsz6sbsAfy1JOUJZBqwcA38OIyrJKTLjSZz8MaHZLDWCHkFf3 xE0ebBG6K5C3+Cx9yIhv1mS4Sl1Y4lr/VoavzXSRQWOcumnygqvcx7v0bmiqf5Bl wbreVjmIFa1zwKx2kYC4ECxSMKct3fIfaohzHYU6J5Tga0CfmFWeJjCieDmesylL kTf0UNTXeHNF1EKC/ef/U0dTKPCwKxirEVAgJiK9HVleN8XuwHa0+1OEFaPv+KY9 e2RQsxo5bCHNwJ0cZsHa8iy1sRkbL5g2pdnSOrMpnYikBtpbrA3JskckvQY3fQog +ggeLwQ2btZnddbvXKyu50JakRXuU4SY1aPRwmOHiKFkrZZd0Dm4YmAIjlrsceZ8 8hcD5m5fsT3JuYx+78rUT3cCAwEAAQ== -----END PUBLIC KEY-----

ASN1 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 157814552751720862124221608840114210511905 . . . . . . . . [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 2015-12-28 19:04:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2016-03-27 19:04:00 +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 'mx2.blckr.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 949568157252615352100669599445370586653953228887700130556895434826278819948663421294762172618730047068822777828166164265738491816081161071689018099317390553241019015051081061035827056248987631498074711329237428715869123392661829336583783885784799132893386211081917617823301418370299765623526021508606649865045374545538880072885710326296512717967187842836004884045369020761501992194836446649574391903107095542302776918120727985202210010923600870938414357915756636694685278869220083524043522857455019074755452988752801762204660278699894354311176902850194258003343284957316316363160914509555825301326463550572126514322635348172271233952141040376045425837007795561752919542268400830416287746555774481339050692831368467613194319275401823189719360174030951117163132595382219612441827741292962038347264355442965852324450055294733683076579145385968535441323022092040491324457473281981559267664060571714977058511416054286660996823702598222496626697999538827329080854579447747433832302994903880335554059245775179084554376682157943569165510196416549716884642376134566536537300061652483884874035516132110447483520927307437734548657099030989613194098375083839189310846099972198197690107083234623567877866614619897133374563132712234651441610116983 . . . . . . . . . . . . . . . . . . . . [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) 194bbbdb616c1ce3ca52bc06f77b609fe673832c . . . . . . . . . . . . . . . . [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 (16 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mx2.blckr.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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