www.permet.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:b4:8a:3a:04:4a:64:91:78:95:9b:20:97:d9:df:45:90:d3 was issued on by Let's Encrypt.

With 3 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=www.permet.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:b4:8a:3a:04:4a:64:91:78:95:9b:20:97:d9:df:45:90:d3
Serial Number (int): 409883704476469670225698149709346068861139
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 95:3e:c2:0e:02:31:bb:ec:47:1b:d4:7a:5e:b1:39:24:cc:b6:21:e8
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): f7:f3:18:b3:e4:ed:b8:a3:aa:51:23:a7:02:55:68:bc:5b:d2:49:ac
Fingerprint (sha256): ec:20:d1:f9:1d:ba:c7:77:df:b3:f2:fa:1d:77:ea:85:e4:23:f8:10:96:f3:cf:c3:bc:33:e1:10:73:09:aa:a4

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 www.permet.cz

3

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.permet.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

data.kulina.cz
permet.cz
www.permet.cz

Other certificates including the domain name permet.cz

(limited to 100 certificates)
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAr/bXOlvyp1aRIZPVn8M3
ynM1YiFtesSOK8g1TAHYTDchCgP4t6A534VoiGPwWKFIQnP/29QKQX/tRsG9tldW
HMSEeK6Bt2qLyzBZjZCLrN/f9IQ8rMHK4suMTDCDNsJCuwAUEqsHcEj4CuE+SX+W
4rlTNqfNEJbSHYoJOh7v0lgfRc05hVhdLOYPenpZCr5BS6hHC3a9zeGQz0OBWQNq
rso3h8vgtjpQOA1V84ie+3zZzMmfS26PSfNKC9DXktmUEbkxZde+DaLL0J1577ls
jr3lt8ZcMUHaCnCm66qp9MlK9DBdmRgeEK9koZIopKJTyGQzKW9jokWPOlAEEIRp
SwIDAQAB
-----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 409883704476469670225698149709346068861139
 . . . . . . . . [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 2019-09-29 22:11:29 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-28 22:11:29 +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.permet.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 22213425071744129954422781959390134810702565644409240371003666330346618752385376685521881072894253655486383219158219402844034038849545256091557857319545664620875752830773503878505120037299386961015364957105216203130197544281461858691729418813664580300967705215956524180791643339678245241918435961531960422865995890212196920652886377848975235976234759263392840470218436433066128164437054181443975959783038234560178043217845105081563819506937476424248060713560588737326946552742654852825261432901422960005827904929298252883035099955389355924192021333527050285287050747741117421759533489101077426522997062032024815298891
 . . . . . . . . . . . . . . . . . . . . [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)
							953ec20e0231bbec471bd47a5eb13924ccb621e8
 . . . . . . . . . . . . . . . . [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 (44 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'data.kulina.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'permet.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.permet.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)
							00f0007600747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016d7f4b137e0000040300473045022048cd42726871f3358bce69fcddf924f98aa82fe215f3eda59ef2023d33c2ea80022100e274d966276f7154656e867f01ef6d9ff819b1a842054bda41482c119d4f4a6c007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016d7f4b135a000004030047304502203da0d34cc4b311211ba85c73956c1a144d756298a41be544d4c6210816e126c4022100939347a89eb697d009401a348bc411ebdf1d9c5703a1cad5b66d9a95b8b61b09
 . . . . [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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