strnadatka.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:9f:16:ea:65:6a:7c:a3:5c:b6:77:2c:04:02:c5:be:0e:e3 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=strnadatka.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:9f:16:ea:65:6a:7c:a3:5c:b6:77:2c:04:02:c5:be:0e:e3
Serial Number (int): 402584500137802496405321908148336328576739
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 69:58:66:12:b8:74:37:64:f3:e7:75:57:7a:ca:1b:ff:76:1b:d6:78
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 6b:ac:dc:e2:47:d5:0a:a7:68:03:39:e5:06:71:1a:9d:bc:11:0f:54
Fingerprint (sha256): 27:fb:f8:e8:f0:c0:13:31:c8:52:16:82:ed:d0:e1:0d:17:60:c7:62:fa:0a:e9:29:d6:62:1b:d9:a9:68:0e:9c

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 strnadatka.cz

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for strnadatka.cz

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

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

strnadatka.cz

Other certificates including the domain name strnadatka.cz

(limited to 100 certificates)

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 402584500137802496405321908148336328576739
 . . . . . . . . [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 2020-03-05 13:30:43 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-03 13:30:43 +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 'strnadatka.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 739865117811970797459663703301816691418268171876100062581103687876092714223175197166663427056759529228582316099351248208955978562130744039113148280981123496766723624623417154129815242013209536702410263736399317739657031489203018267991858250861622583162292170629017067587983339367110053541747550130974436434737529662176699678313498592146205046005404255015726525963505301218779092842758966153930876516723242771582551107985804227725999263275105618955652828917809687148746978385655243276027925610051846915443720894056618667315189859231977298170124120912530895098927192696547851069802606328133724811405692996044518258060357902276513769723067749394785464854236399557523953025476983641069832850605281387544450397896073210485271616160385964177167309169182261002415737861370185544851604826331598278383895983393433919762206076569500409994381824319328955421212197795001099370675901786526802245831025540816434616480942101113688901150103029626817551407194833929569723883372407183903043621964128343346820821647805091270811740049745801512353821610878548725002091182355880217202394772130571379636569924179578304129641373926446563752353620940533365799082209556290602155963146068713508766039292365773838401517647655499492509331170314483393855177905359
 . . . . . . . . . . . . . . . . . . . . [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)
							69586612b8743764f3e775577aca1bff761bd678
 . . . . . . . . . . . . . . . . [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 (17 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'strnadatka.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)
							00f00075005ea773f9df56c0e7b536487dd049e0327a919a0c84a11212841875968171455800000170ab1b14ab0000040300463044022022f3c1bf8edbdbdf35d646f50dca6b71adfecf9eb1db7fbd8bda983d15a06e88022015219f776884a613910bbfa1188a9c4c814b6642adac98e76f70d39645f24e1900770007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c00000170ab1b14d10000040300483046022100d9b964dac2bb7889ba2469a510b8eb5ef0ead8a532b55e254f188f4d7a7c0619022100cea705fa8b0c048c18fa5790a34bfc44504223b566b1f07c8fb09b3e92aa2d38
 . . . . [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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