is.nibowaka.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:37:34:81:8a:a6:ff:bd:00:fe:dd:39:39:d1:01:0c:1f:c0 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=is.nibowaka.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:37:34:81:8a:a6:ff:bd:00:fe:dd:39:39:d1:01:0c:1f:c0
Serial Number (int): 280122180450211469498996542850842206412736
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: cb:c8:8c:4a:b1:83:ee:e5:a0:92:0c:d3:7e:ac:77:a7:f6:2f:f3:a1
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 06:7d:6b:29:85:88:a6:32:c3:d3:2c:10:d8:76:71:04:e7:25:98:b0
Fingerprint (sha256): 3a:e9:c5:a4:c8:46:a9:66:33:f6:94:7e:09:64:73:04:fc:a1:c7:67:d3:2f:7f:78:e8:8f:b1:19:ce:c9:94:ee

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate is.nibowaka.cz

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for is.nibowaka.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

is.nibowaka.cz

Other certificates including the domain name nibowaka.cz

(limited to 100 certificates)
is.nibowaka.cz
is.nibowaka.cz
is.nibowaka.cz
is.nibowaka.cz
is.nibowaka.cz
is2.nibowaka.cz
is.nibowaka.cz
is2.nibowaka.cz
is.nibowaka.cz
is2.nibowaka.cz
is.nibowaka.cz
is2.nibowaka.cz
is.nibowaka.cz
is.nibowaka.cz
is.nibowaka.cz
is.nibowaka.cz
is.nibowaka.cz
is.nibowaka.cz
is.nibowaka.cz
is.nibowaka.cz
is2.nibowaka.cz
is2.nibowaka.cz
is.nibowaka.cz
is.nibowaka.cz
is.nibowaka.cz
is.nibowaka.cz
is.nibowaka.cz
is2.nibowaka.cz
is.nibowaka.cz
is.nibowaka.cz
is.nibowaka.cz
is.nibowaka.cz

Certificate

The complete raw certificate details for is.nibowaka.cz in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnbHgUu0rjOicEck7Gown
jet8JJ2EJ862JBxLAMwOguNh2GV+srxBnM0VEUmIbTn4bBEz4G2zf4PbDckbnp5n
5uhej0mE7hehIh+xi0VxMirY6UhonmumE52B6II4CYy8oCk3GKF0gh4vqk8b6wVz
Rah5mZuYXq5UC1tpKNevZOs8bFM+06a52DkVNJhsLKTCU9k6VYZMmKb/C7QOaMQp
xQYVirmb4eW5OJXXDb0nrKBqk0ZLfSBPzS8WsuBn0otbckm8V1s60qDrlS+6wTMk
eisq/6RkhvZEA1uxfm/Uh6S9QFtbrLEfmAtO4JNhc+0NRLv1iBO9JPC5/QKz4Dp2
awIDAQAB
-----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 280122180450211469498996542850842206412736
 . . . . . . . . [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 X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-10 19:10:10 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-10 19:10:10 +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 'is.nibowaka.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 19907127935266432948938794714751387449318393906505801398245100396668238282310643786795373062956700769858506123998337760884883423215516966893506942224403585131041550591703909180544116589192958911493404847319476345321658792503128995123567878507646129826577104044396700938626759166257273547819046528844588465117784930485283773233687696714143403178779533935425527160543875346879915848301949016645953225924144062216845456397234892758329074830582827796128810240104859693679901461889641825999058181837678799367419934071841943351246493930033532933995847127883303715592054191618037696295247615486581476460513896510342217496171
 . . . . . . . . . . . . . . . . . . . . [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)
							cbc88c4ab183eee5a0920cd37eac77a7f62ff3a1
 . . . . . . . . . . . . . . . . [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 (99 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-x3.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-x3.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 (18 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'is.nibowaka.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 (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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600e712f2b0377e1a62fb8ec90c6184f1ea7b37cb561d11265bf3e0f34bf241546e0000017030b939b1000004030047304502207bc98b1d1e10b5d158780b9a017559102a8ddc5a3bf761a42cbc37812c39a27a0221008d10be7f73d456b3cc33dd388d5083128ee2c7880c1692f47e77e7687eef6a78007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000017030b939cd000004030047304502201d2bb14b188c018fff2b1b1d8104f75bebc25d49040268cabe3fd70965125693022100b38b6d7110155487e70f64ef9b9ff0610aeb0b07c1c7df3c0414300c243e098b
 . . . . [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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