mail.dopskopl.cz

Issued by R3

About this certificate

This digital certificate with serial number 03:d2:01:0b:aa:55:75:7f:e1:e7:45:a5:b2:4d:76:dc:94:7a 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=mail.dopskopl.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:d2:01:0b:aa:55:75:7f:e1:e7:45:a5:b2:4d:76:dc:94:7a
Serial Number (int): 332797544646719436847180488048321784222842
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: b9:7d:c4:7e:9f:db:cc:b0:88:9e:28:94:c8:67:62:5c:37:3c:96:1b
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): ef:fa:54:b4:69:21:23:0f:a5:5d:66:cf:57:30:e5:7b:ff:cc:27:99
Fingerprint (sha256): 58:9f:8d:14:79:37:25:f0:bf:b9:27:95:a4:52:fc:b0:da:44:5f:a8:0d:07:95:ab:f4:f1:b9:5b:4e:fd:d1:c0

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

Revocation information

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

Check the revocation status for certificate mail.dopskopl.cz

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mail.dopskopl.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

mail.dopskopl.cz

Other certificates including the domain name dopskopl.cz

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moodle.dopskopl.cz
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meteostanice.dopskopl.cz
firmy.dopskopl.cz
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moodle.dopskopl.cz
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firmy.dopskopl.cz
firmy.dopskopl.cz
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meteostanice.dopskopl.cz
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meteostanice.dopskopl.cz
firmy.dopskopl.cz
hades.dopskopl.cz
mail.dopskopl.cz
meteostanice.dopskopl.cz
mail.dopskopl.cz
mail.dopskopl.cz
firmy.dopskopl.cz
meteostanice.dopskopl.cz
firmy.dopskopl.cz
firmy.dopskopl.cz
mail.dopskopl.cz
moodle.dopskopl.cz
moodle.dopskopl.cz
mail.dopskopl.cz
firmy.dopskopl.cz
moodle.dopskopl.cz
meteostanice.dopskopl.cz
meteostanice.dopskopl.cz
hades.dopskopl.cz
mail.dopskopl.cz
bakalari.dopskopl.cz
moodle.dopskopl.cz
moodle.dopskopl.cz
firmy.dopskopl.cz
moodle.dopskopl.cz
mail.dopskopl.cz
firmy.dopskopl.cz
mail.dopskopl.cz
firmy.dopskopl.cz
hades.dopskopl.cz
mail.dopskopl.cz
moodle.dopskopl.cz
mail.dopskopl.cz
spsdplzen.cz
mail.dopskopl.cz
mail.dopskopl.cz
meteostanice.dopskopl.cz
firmy.dopskopl.cz
hades.dopskopl.cz
firmy.dopskopl.cz
moodle.dopskopl.cz
moodle.dopskopl.cz
mail.dopskopl.cz
moodle.dopskopl.cz
hades.dopskopl.cz
firmy.dopskopl.cz
meteostanice.dopskopl.cz
firmy.dopskopl.cz
moodle.dopskopl.cz
mail.dopskopl.cz
mail.dopskopl.cz
bakalari.dopskopl.cz
firmy.dopskopl.cz
bakalari.dopskopl.cz
mail.dopskopl.cz
firmy.dopskopl.cz
meteostanice.dopskopl.cz
firmy.dopskopl.cz
mail.dopskopl.cz
mail.dopskopl.cz
bakalari.dopskopl.cz
spsdplzen.cz
firmy.dopskopl.cz
bakalari.dopskopl.cz
firmy.dopskopl.cz
mail.dopskopl.cz
meteostanice.dopskopl.cz
firmy.dopskopl.cz

Certificate

The complete raw certificate details for mail.dopskopl.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 332797544646719436847180488048321784222842
 . . . . . . . . [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 2023-12-02 03:04:10 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-01 03:04:09 +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 'mail.dopskopl.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 803072622681863861207715214923951520841309596218233233818863255500038444713178268762805206117994577713711213414150208639562430391800770389424732887674463015095410880663936015370519561869805513533646569566523025697724204822229255870691060289243223598824111360767264986614684208689479294322905404710581329395226340419269630594996529249250738967586054905935747493948816320348646327453675218471478592182902309189961471157234023871592758283165185003149554161117921462973044499569782792195187107266073417921741160807695993790770254628053523905420750410590888242606769604451469020224605715280017005183533580699383006516314515708578528940564939923926817829415529971558673859185421479186529819561279408547275602810787044010855067480364697875598734623603795813229386858617603739969946297039012330271848741467506977177332664022180255821071638942188422381877961347023675810092606459234675621435451748621550578867288440640422526057696671606609587396606504697364114658133282036173745761686656626212119379661028406841105272925131179889998574406726998270443505239525244661487588711213959898347804150925254826936014342547253728014033280288959284111985406311271803568191129037068987101984097382832639457962628227033800241313130612219194118458359748121
 . . . . . . . . . . . . . . . . . . . . [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)
							b97dc47e9fdbccb0889e2894c867625c373c961b
 . . . . . . . . . . . . . . . . [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 (20 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.dopskopl.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 1.3.6.1.4.1.11129.2.4.3 (CT Precertificate Poison)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [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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