www.deltazero.cz

Issued by R3

About this certificate

This digital certificate with serial number 04:d8:44:5a:51:96:bd:ff:fa:ba:a3:77:db:a1:37:22:93:ee was issued on by Let's Encrypt.

With 8 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.deltazero.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:d8:44:5a:51:96:bd:ff:fa:ba:a3:77:db:a1:37:22:93:ee
Serial Number (int): 422040991447212541508328225007305907934190
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: e0:1e:e8:2b:b2:c2:84:39:44:45:48:70:25:72:68:9e:00:80:7f:e0
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 13:c0:b1:a5:e4:1c:cc:40:fd:ab:40:e5:f1:04:ff:cc:8d:1d:a6:1c
Fingerprint (sha256): 86:04:56:90:e7:79:ee:b2:df:09:5c:1e:a1:00:bf:f6:eb:16:00:b9:e6:7b:64:cb:31:a7:88:a5:8f:10:f7:b2

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

Revocation information

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

Check the revocation status for certificate www.deltazero.cz

8

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.deltazero.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

deltazero.cz
itos.carpenoctem.cz
itos.deltazero.cz
node.deltazero.cz
node.itos.carpenoctem.cz
node.itos.deltazero.cz
tools.deltazero.cz
www.deltazero.cz

Other certificates including the domain name deltazero.cz

(limited to 100 certificates)
www.isipos.cz
athena.dayvee.cz
www.deltazero.cz
www.deltazero.cz
www.deltazero.cz
www.deltazero.cz
www.isipos.cz
www.deltazero.cz
www.deltazero.cz
www.deltazero.cz
www.isipos.cz
www.deltazero.cz
www.deltazero.cz
www.isipos.cz
www.isipos.cz
www.deltazero.cz
www.isipos.cz

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtAER5HjvFJIumsnIUUnw
9sRltoGvvEscJ8IZCUXYr09bgWxehoiDCvxOpJjeOAyp1tBBqRPDDlXZ7S4PJAvT
Sbhds9g4qqRbKFuqSfQRj0pfKF2adDwGoYuJmbquE2FNpGn78c1p49tEiUIsUl69
nwjHEu9ElQCsdNAYOWaqPyy9tni7MP4TrXpm4Es3ieIG1J2M1et7RDhfYeDynnYz
9xBgwXfvsoxLJL6028QwqottoN3rS3XZ6+OcAhoLpi59LcFAZM9tjptbKbuCXF56
IrCbDP4lc06ztVkHc6JBBwT9qT94rAnHLtSbturKsOZ0UmQ8+nQ60xq+UU4rzkpH
AQIDAQAB
-----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 422040991447212541508328225007305907934190
 . . . . . . . . [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 2023-08-20 11:30:14 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-11-18 11:30:13 +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.deltazero.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 22723422477526939156219947778931753026293739171181949417455211667635797303108479920669965176287115424898226542178349507021780211345564884157837078289263729869558449612056147167660733406027302747282424673419984463492081494662002032074650349100988619071016888163204771899571984145818912073652925533612361000583963236245860054582765542670361237539910769152112864237960695475815716107810560913365726101061541032584632277459594029849273927472985427848927196074039075931564470471433728379997364546307121388063553274911967364379986374566219811855794670092056684489113787027428102996869941911036630071705056172774317330417409
 . . . . . . . . . . . . . . . . . . . . [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)
							e01ee82bb2c28439444548702572689e00807fe0
 . . . . . . . . . . . . . . . . [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 (164 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'deltazero.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'itos.carpenoctem.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'itos.deltazero.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'node.deltazero.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'node.itos.carpenoctem.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'node.itos.deltazero.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'tools.deltazero.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.deltazero.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018a12ecab6a000004030047304502204d5c5a95796f56fea6557c11881bf8717843c3ab513f7257260c6fb9612a0523022100a81991791de8d3bedf919255bc7480c395545bc7e555ffa2ab0f9bffeeeec25e007700adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a0000018a12ecaba8000004030048304602210088150cbee5c257d9f741446045be86798b666939fd83dcf8a6d31117bc2701c3022100a5e77753038d0fff4e87cc075232795022f99a9130cfc5a0a5a0caad43996073
 . . . . [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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