www.mihlit.cz

Issued by R3

About this certificate

This digital certificate with serial number 03:81:11:e9:c1:2c:5b:23:d7:71:f1:23:26:b7:2f:97:bb:1a was issued on by Let's Encrypt.

With 4 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:
  • 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=www.mihlit.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:81:11:e9:c1:2c:5b:23:d7:71:f1:23:26:b7:2f:97:bb:1a
Serial Number (int): 305257093727197483032431938452834506750746
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: f0:09:f2:71:31:54:1f:b0:3f:7f:21:51:4e:1a:1a:c7:df:24:e0:83
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 84:09:f4:bc:d9:5c:1e:e2:a0:0f:b8:7f:6e:c0:cb:5a:e8:17:a6:82
Fingerprint (sha256): 41:3b:d6:54:71:7f:87:42:f4:71:46:40:ff:7a:db:d5:01:4d:5e:ce:78:b8:eb:76:1e:f3:00:47:ce:45:0e:a7

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate www.mihlit.cz

4

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.mihlit.cz

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

ipv4.mihlit.cz
ipv6.mihlit.cz
mihlit.cz
www.mihlit.cz

Other certificates including the domain name mihlit.cz

(limited to 100 certificates)
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
nas.ddns.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
nas.ddns.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
nas.ddns.mihlit.cz
www.mihlit.cz
www.mihlit.cz
ipv4.mihlit.cz
www.mihlit.cz
nas.ddns.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
nas.ddns.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
nas.ddns.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
nas.ddns.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
www.mihlit.cz
nas.ddns.mihlit.cz

Certificate

The complete raw certificate details for www.mihlit.cz in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIFETCCA/mgAwIBAgISA4ER6cEsWyPXcfEjJrcvl7saMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yMzA5MzAyMTAwMThaFw0yMzEyMjkyMTAwMTdaMBgxFjAUBgNVBAMT
DXd3dy5taWhsaXQuY3owggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDY
cON9j8KtxfQ1S+l3kpO4zDHMZUet10OjpHFAS78MXT8osFavCfKk/XViwf5lnmEg
h5ri67UQuUexQcuyBqHzP//EZkDBuvc5//OW3L0iFd4ipkzjW4Sh1nilFnHTrXgA
X1uo+FiijE7dD2UAulf/RQFhDBt/JQTBfmD911aTEiA0ec/4FzapIYnUAZ05W19S
PUz1C6ctlFY/oOspal/pqhAMojjo/88FgevacqN6coTVA9Ar/oZKOcBeVCir7/YC
x36wFvlO1K1r+Q+N70F+3Q25KUd6vSUO9JlbhrlaZzEZvzJcmC6V9nlLCetXqzk0
zzBayMtrnpsndynhGJl1AgMBAAGjggI5MIICNTAOBgNVHQ8BAf8EBAMCBaAwHQYD
VR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0O
BBYEFPAJ8nExVB+wP38hUU4aGsffJOCDMB8GA1UdIwQYMBaAFBQusxe3WFbLrlAJ
QOYfr52LFMLGMFUGCCsGAQUFBwEBBEkwRzAhBggrBgEFBQcwAYYVaHR0cDovL3Iz
Lm8ubGVuY3Iub3JnMCIGCCsGAQUFBzAChhZodHRwOi8vcjMuaS5sZW5jci5vcmcv
MEMGA1UdEQQ8MDqCDmlwdjQubWlobGl0LmN6gg5pcHY2Lm1paGxpdC5jeoIJbWlo
bGl0LmN6gg13d3cubWlobGl0LmN6MBMGA1UdIAQMMAowCAYGZ4EMAQIBMIIBAwYK
KwYBBAHWeQIEAgSB9ASB8QDvAHUAejKMVNi3LbYg6jjgUh7phBZwMhOFTTvSK8E6
V6NS61IAAAGK6BtP0AAABAMARjBEAiBBVEvR4WGTITtuc4NO7N203JJvnT/5yS9+
uKU+kS5dDQIgGEN00f6h8MQgq61FeFCmCDpX+Q7AGIxoZ95znj7jxOEAdgDoPtDa
PvUGNTLnVyi8iWvJA9PL0RFr7Otp4Xd9bQa9bgAAAYroG0+wAAAEAwBHMEUCIQC3
QPayNxXce9NeU/vri00sGpi6XnG3xDKoKc41Y7KzqQIgSr1VmbDMrAUDk2jVvZ2y
SNq5N8v6JSjqXTQSb9DmfPYwDQYJKoZIhvcNAQELBQADggEBACxLjF7wNDTjel3x
xG7syHukCSO2atRWzwY6smEsDvI8hwhHfM8fI5x2zf1ormoILAyEC7mtG07hY3Cb
+GQDUiOJQvxnoJNgRAw6afpn5uS4qy5Q/NtWk2ZlpWVY0TxtCyWCiZwTkUlwERv8
uB5Mzg8rRU7XD3Ywf0e38hcrapzvAmvynOmqA8VwWbR0ZG1odCqN8ib3qb7xXkKS
4W38vzpM6Ewq6FeaI2OtTyYf/UgwJV1dipVcLMhfxRyJbN87ixkdfRXVeMB7dzS0
oR1cIuyDARwEwSLiqqe6wiWD8Aqo6gAaNGIeJkWzA4iUCxuaDSGNvH9+J5R0uve7
e7qtQsw=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2HDjfY/CrcX0NUvpd5KT
uMwxzGVHrddDo6RxQEu/DF0/KLBWrwnypP11YsH+ZZ5hIIea4uu1ELlHsUHLsgah
8z//xGZAwbr3Of/zlty9IhXeIqZM41uEodZ4pRZx0614AF9bqPhYooxO3Q9lALpX
/0UBYQwbfyUEwX5g/ddWkxIgNHnP+Bc2qSGJ1AGdOVtfUj1M9QunLZRWP6DrKWpf
6aoQDKI46P/PBYHr2nKjenKE1QPQK/6GSjnAXlQoq+/2Asd+sBb5TtSta/kPje9B
ft0NuSlHer0lDvSZW4a5WmcxGb8yXJgulfZ5SwnrV6s5NM8wWsjLa56bJ3cp4RiZ
dQIDAQAB
-----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 305257093727197483032431938452834506750746
 . . . . . . . . [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 2023-09-30 21:00:18 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-29 21:00:17 +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 'www.mihlit.cz'
 . . . . . . . . [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 27323141333177835358040837407855377901697632642438598792701263740922320854226610884566941334734148432522148387125289866526703786552362849363398227091018329318864733475338635408587450974821135618719933810562889618566497529336597105195699361665780887848594426634051743995714511758483870867113163870426113617593645347163253813930847495674145204365070236516691397157259526800429393516750549762905157581925280955096090838235326944096859426202764219103728540460824435496439292453588626507004131596238917758010183032068721025686493597495391775849740580514681559635900433963698557049153380864415160260335193670061782430423413
 . . . . . . . . . . . . . . . . . . . . [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)
							f009f27131541fb03f7f21514e1a1ac7df24e083
 . . . . . . . . . . . . . . . . [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 (60 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ipv4.mihlit.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ipv6.mihlit.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mihlit.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.mihlit.cz'
 . . . . . . . . . . . . . . . . [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)
							00ef0075007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018ae81b4fd00000040300463044022041544bd1e16193213b6e73834eecddb4dc926f9d3ff9c92f7eb8a53e912e5d0d0220184374d1fea1f0c420abad457850a6083a57f90ec0188c6867de739e3ee3c4e1007600e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e0000018ae81b4fb00000040300473045022100b740f6b23715dc7bd35e53fbeb8b4d2c1a98ba5e71b7c432a829ce3563b2b3a902204abd5599b0ccac05039368d5bd9db248dab937cbfa2528ea5d34126fd0e67cf6
 . . . . [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)
		002c4b8c5ef03434e37a5df1c46eecc87ba40923b66ad456cf063ab2612c0ef23c8708477ccf1f239c76cdfd68ae6a082c0c840bb9ad1b4ee163709bf8640352238942fc67a09360440c3a69fa67e6e4b8ab2e50fcdb56936665a56558d13c6d0b2582899c13914970111bfcb81e4cce0f2b454ed70f76307f47b7f2172b6a9cef026bf29ce9aa03c57059b474646d68742a8df226f7a9bef15e4292e16dfcbf3a4ce84c2ae8579a2363ad4f261ffd4830255d5d8a955c2cc85fc51c896cdf3b8b191d7d15d578c07b7734b4a11d5c22ec83011c04c122e2aaa7bac22583f00aa8ea001a34621e2645b30388940b1b9a0d218dbc7f7e279474baf7bb7bbaad42cc