klopotek.com
Issued by R3
About this certificate
This digital certificate with serial number 04:ad:3f:6e:57:4d:33:b8:d1:95:44:9f:93:6d:ed:56:71:f1 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=klopotek.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:ad:3f:6e:57:4d:33:b8:d1:95:44:9f:93:6d:ed:56:71:f1Serial Number (int): 407402307491438440495564966483362072392177
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 80:6f:4c:ab:68:4f:8d:90:d8:8e:ec:3f:c6:ca:08:7d:fd:b0:39:9b
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): 03:3d:78:31:a0:df:db:fb:5d:f8:a1:ad:d7:cc:b7:29:36:5e:b5:d4
Fingerprint (sha256): dc:c8:9f:22:c8:d6:ad:0e:82:91:70:7f:1b:c5:47:99:53:ca:2a:b6:63:0a:ee:da:d7:a9:b9:11:f9:f2:c0:8a
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate klopotek.com
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for klopotek.com
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
klopotek.com
www.klopotek.com
www.klopotek.com
Other certificates including the domain name klopotek.com
(limited to 100 certificates)
klopotek.com
webmail.klopotek.de
klopotek.com
*.klopotek.com
klopotek.com
www.klopotek.com
klopotek.com
klopotek.com
klopotek.com
webmail.klopotek.de
klopotek.com
klopotek.com
asp-citrix.klopotek.com
www.klopotek.com
klopotek.com
*.klopotek.com
saas.klopotek.de
klopotek.com
*.klopotek.com
klopotek.com
klopotek.com
www.klopotek.com
sip.klopotek.com
saas.klopotek.de
*.klopotek.com
klopotek.com
autodiscover.klopotek.com
*.klopotek.com
klopotek.com
klopotek.com
mail.klopotek.com
klopotek.com
*.stream.klopotek.com
klopotek.com
klopotek.com
*.klopotek.com
klopotek.com
klopotek.com
*.klopotek.com
*.klopotek.com
klopotek.com
klopotek.com
klopotek.com
klopotek.com
klopotek.com
klopotek.com
klopotek.com
klopotek.com
klopotek.com
www.klopotek.com
webmail.klopotek.de
klopotek.com
*.klopotek.com
klopotek.com
www.klopotek.com
klopotek.com
klopotek.com
klopotek.com
webmail.klopotek.de
klopotek.com
klopotek.com
asp-citrix.klopotek.com
www.klopotek.com
klopotek.com
*.klopotek.com
saas.klopotek.de
klopotek.com
*.klopotek.com
klopotek.com
klopotek.com
www.klopotek.com
sip.klopotek.com
saas.klopotek.de
*.klopotek.com
klopotek.com
autodiscover.klopotek.com
*.klopotek.com
klopotek.com
klopotek.com
mail.klopotek.com
klopotek.com
*.stream.klopotek.com
klopotek.com
klopotek.com
*.klopotek.com
klopotek.com
klopotek.com
*.klopotek.com
*.klopotek.com
klopotek.com
klopotek.com
klopotek.com
klopotek.com
klopotek.com
klopotek.com
klopotek.com
klopotek.com
klopotek.com
www.klopotek.com
Certificate
The complete raw certificate details for klopotek.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFMjCCBBqgAwIBAgISBK0/bldNM7jRlUSfk23tVnHxMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMjExMjgwNDI3MTFaFw0yMzAyMjYwNDI3MTBaMBcxFTATBgNVBAMT DGtsb3BvdGVrLmNvbTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAOZW kSfBEXqKOOB0MBAZVkfiCeG7tj44HStvdtmE8Jn/rQxiA8Ks2B5eTyx/KBgICEKh AyRbCOyW6w2izlV5j0zvEBJxiZJ9bOZ8Koj2QR7m1S4i7wUwLXkRoJNE3kqpBCL+ 80BHD67k69XMwFb/tBpZ87jNpubHslWhE0qYfWxFV9zGEOAj7/4/dRkMDqcgv4Z+ jaruXHkzo/kOl/lh2BK5VRIu4rc0hzZQ9gXxlFcMrjQiTtLPMyZ9g0+MKE2CEqKR Vhsfjb9ixLpuN2bN46WqsLxRZs/0Zc9WNp9L54f8DqvbEkfhyzmqeQUvFIrK88P8 bbRrEjCUhW/X2JUjE38CAwEAAaOCAlswggJXMA4GA1UdDwEB/wQEAwIFoDAdBgNV HSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4E FgQUgG9Mq2hPjZDYjuw/xsoIff2wOZswHwYDVR0jBBgwFoAUFC6zF7dYVsuuUAlA 5h+vnYsUwsYwVQYIKwYBBQUHAQEESTBHMCEGCCsGAQUFBzABhhVodHRwOi8vcjMu by5sZW5jci5vcmcwIgYIKwYBBQUHMAKGFmh0dHA6Ly9yMy5pLmxlbmNyLm9yZy8w KQYDVR0RBCIwIIIMa2xvcG90ZWsuY29tghB3d3cua2xvcG90ZWsuY29tMEwGA1Ud IARFMEMwCAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0 dHA6Ly9jcHMubGV0c2VuY3J5cHQub3JnMIIBBgYKKwYBBAHWeQIEAgSB9wSB9ADy AHcAtz77JN+cTbp18jnFulj0bF38Qs96nzXEnh0JgSXttJkAAAGEvLQd5AAABAMA SDBGAiEAuvq7aUxXc0xdTOx6/FgThA/8mfXkldO9VitucdSiNXgCIQDVqe0ny7sj LJmdBBKHezLju9Btue84TOrYNCITbw4TBwB3AK33vvp8/xDIi509nB4+GGq0Zyld z7EMJMqFhjTr3IKKAAABhLy0Hg0AAAQDAEgwRgIhAIbWRtIgKkpd/vvJpkz+T53n hUv66oX9/C9u+GAFT8W1AiEAnCZnODFprX48As/eDNOP6zSUuNPvPD/6/COVpcwK HPcwDQYJKoZIhvcNAQELBQADggEBAGPTlfE4XpNZM7y1vZSncULf2EHGXCvv6lBt 2S3e0+HivI7V0GTh1fmIFxn03Bal4UHbYx1HehWzKiUoQY/uyhC2VXzeRr/3criW RINKOYeAa39307rXfMVzpTWdypCjvhWZEvz4XaiPpqnM8vMPutNh/kLQlvFyfQ5y ue+5nA5kAV6Hfohk6AuJMtBMt8UFNrqVKPrSCwJP/kNNMd2Lm8KoOlGybkvx/uKb e9loke2lRJ5R/OFtbQygddiGJil68Npz/81NJOyqAJ20nlXt1XxK4F5ylvSVpN3u t9qHsL6JCEPQmjCWJM0eDzekPEuksPTIGeXG6PnewaG+CBxbFEQ= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA5laRJ8EReoo44HQwEBlW R+IJ4bu2PjgdK2922YTwmf+tDGIDwqzYHl5PLH8oGAgIQqEDJFsI7JbrDaLOVXmP TO8QEnGJkn1s5nwqiPZBHubVLiLvBTAteRGgk0TeSqkEIv7zQEcPruTr1czAVv+0 GlnzuM2m5seyVaETSph9bEVX3MYQ4CPv/j91GQwOpyC/hn6Nqu5ceTOj+Q6X+WHY ErlVEi7itzSHNlD2BfGUVwyuNCJO0s8zJn2DT4woTYISopFWGx+Nv2LEum43Zs3j paqwvFFmz/Rlz1Y2n0vnh/wOq9sSR+HLOap5BS8Uisrzw/xttGsSMJSFb9fYlSMT fwIDAQAB -----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 407402307491438440495564966483362072392177 . . . . . . . . [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 2022-11-28 04:27:11 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-02-26 04:27:10 +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 'klopotek.com' . . . . . . . . [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 29077497927225620288765366762595206297418338843935430895695186706176902493222500368825627432342388609813151926536534810809094566301495307638544487731624720174083569977892442707343350398423520713934456263812357890754226173474043182182221658702887332361547885435794959496469394311076435255502786121789936238082792645880066076009323635848999675126947580790866517788504326425595388488995825891131389555802432987352358559766575587821797174885627903654394227933184820841716111388277131782264564130544493754517905815388709193005199410807411611177205135708718748478676183999942877432821635808454116772133043000472234509931391 . . . . . . . . . . . . . . . . . . . . [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) 806f4cab684f8d90d88eec3fc6ca087dfdb0399b . . . . . . . . . . . . . . . . [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 (34 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'klopotek.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.klopotek.com' . . . . . . . . . . . . . . . . [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 (69 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 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (247 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes) 00f2007700b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb49900000184bcb41de40000040300483046022100bafabb694c57734c5d4cec7afc5813840ffc99f5e495d3bd562b6e71d4a23578022100d5a9ed27cbbb232c999d0412877b32e3bbd06db9ef384cead83422136f0e1307007700adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a00000184bcb41e0d000004030048304602210086d646d2202a4a5dfefbc9a64cfe4f9de7854bfaea85fdfc2f6ef860054fc5b50221009c2667383169ad7e3c02cfde0cd38feb3494b8d3ef3c3ffafc2395a5cc0a1cf7 . . . . [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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