b2b.audiopro.cz

Issued by R3

About this certificate

This digital certificate with serial number 04:b1:57:9b:f7:51:e8:1c:44:07:56:55:25:7d:be:35:3c:eb 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:
  • 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=b2b.audiopro.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:b1:57:9b:f7:51:e8:1c:44:07:56:55:25:7d:be:35:3c:eb
Serial Number (int): 408795575329937943157813733255672325553387
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 5c:87:31:e0:f7:7f:8e:4d:79:3f:ff:b5:b5:74:ec:45:e6:32:a5:9d
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 14:ba:68:d2:19:d5:96:92:49:37:c7:96:83:bc:6e:7f:ad:e4:5f:f7
Fingerprint (sha256): cd:83:bf:9d:43:69:b1:bb:81:9e:6e:75:d6:86:43:2d:6f:a2:7b:c7:e6:75:48:6b:13:a2:a2:0c:77:ab:20:5a

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

Revocation information

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

Check the revocation status for certificate b2b.audiopro.cz

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for b2b.audiopro.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

b2b.audiopro.cz

Other certificates including the domain name audiopro.cz

(limited to 100 certificates)
audiopro.cz
*.audiopro.cz
*.audiopro.cz
api.audiopro.cz
audiopro.cz
citrix-ddc.corp.audiopro.cz
www.audiopro.cz
*.audiopro.cz
audiopro.cz
www.audiopro.cz
www.audiopro.cz
audiopro.cz
audiopro.cz
*.audiopro.cz
audiopro.cz
audiopro.cz
audiopro.cz
audiopro.cz
audiopro.cz
audiopro.cz
audiopro.cz
www.audiopro.cz
*.audiopro.cz
b2b.audiopro.cz
audiopro.cz
audiopro.cz
audiopro.cz
gw.audiopro.cz
*.audiopro.cz
*.audiopro.cz
audiopro.cz
audiopro.cz
audiopro.cz

Certificate

The complete raw certificate details for b2b.audiopro.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 408795575329937943157813733255672325553387
 . . . . . . . . [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 2023-11-23 08:58:18 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-21 08:58:17 +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 'b2b.audiopro.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 691021727348661145841031128066983855131263571532109230497241316011736591446562567409455476120960757649410544771228222289623616836967901396061863712015650622127995826784284759498268787305214930390811413754942238908727929722489488353120773977847452768736002171894826520617230724117760802994778947544113860538915211343914051554362512798440212703243639019218418857532584637863713913299953479833980602316641300581027782024845324549856918771697555456261738169914711649189512692054750634870715974485833263524248872986506456116305380971434368719137036919102763849322915263426924481774800697876736686492327218350827574545805761130146380328140355692462197887733396409566141220718438544887136741164524528131014271782786151980004679474698637309742296031422443185582946417930501026395640883428335096957191733772083773159513844872480037259828022158462242231009040604949865410715894702767159950055394544401149034188032008804185707248980516648203696226522161371651634196064540569432328698059315540297026573789115881316628820632430810082763040585996555995338596734096571159344359489404730821073066678751886080251548117049823072835294896149903499261762849881732740663843674287704046705526563744425529089441914702884484675497766666616093850466583279027
 . . . . . . . . . . . . . . . . . . . . [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)
							5c8731e0f77f8e4d793fffb5b574ec45e632a59d
 . . . . . . . . . . . . . . . . [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 (19 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'b2b.audiopro.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)
							00ef00750048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018bfb9db7100000040300463044022035150e4ecc0f4ff51dc81cb8817735afb5dfc95add5b53b70cde9ba725bdb2a302205d9b05362d3ca21365a07302d4ca2f1dc7e620f4cd2a3680675c43a724f824d00076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018bfb9db721000004030047304502202390aca9bd1e23e5b1bb8b7fd48692fd131227393f20443e651b6397e4c83f7902210094bcf207bc3ff10dc739a04066e9095ed6348ef86962fc460393fd8534576265
 . . . . [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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