mandaum.com

Issued by R3

About this certificate

This digital certificate with serial number 03:a0:03:ce:d0:15:c2:ef:c6:34:bf:48:45:da:30:51:03:89 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=mandaum.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:a0:03:ce:d0:15:c2:ef:c6:34:bf:48:45:da:30:51:03:89
Serial Number (int): 315787098020236425949646630153789245555593
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 6d:80:a4:73:ab:a0:9a:67:ab:a5:e6:17:66:f3:95:92:87:fe:83:58
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): f3:af:b5:a2:01:7b:e5:d0:09:9f:d7:ae:b9:04:f3:07:d8:12:93:51
Fingerprint (sha256): 3c:d0:21:2c:8c:fb:75:fe:55:7f:d2:35:8c:1f:b1:83:39:6c:4b:d9:b9:5d:a8:54:dc:6e:3d:68:47:2d:56:6b

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

Revocation information

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

Check the revocation status for certificate mandaum.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mandaum.com

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

mandaum.com

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Certificate

The complete raw certificate details for mandaum.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA83ltrgZ/3IGmLpKhjafk
DQUBPZQamVztqIlffq8KbsvJR6ajDn9wpfMeBh8fVYRZdFP06sd9g5/g8uneIV+f
h4AtjBmaAs183/1ngolmeQJAJ43PVl2UnFtMYGXFhkSWVHi381SW0l2PSOS2ajJV
e5Jex5iOe1u+1j/RK5W3czV6waCQvVTPXWcJhVrdGSYDFVy6DYJRlTyIHxd6bSfh
5NnVB23Hpon5BUsWB8iLuPdpKbaU3yUBEWajMdbJiMjnS5fNtCZ+ZiEahg7Ve0kH
WnA0hHRAL438r1bOpDeG1ebLLfAP6KNDbbk761twSNK3k70WS9oWQR3nKTZLGGK6
ZQIDAQAB
-----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 315787098020236425949646630153789245555593
 . . . . . . . . [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 2023-09-11 07:10:34 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-10 07:10:33 +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 'mandaum.com'
 . . . . . . . . [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 30735786700578346582920420086691011584726919294513276685164395789493604014988348921710590560056176833716275262667784067679573861950216930794186196021276795753325846047832532613454030642424240764908772143109025351449198766522127694461750797716908307299667083599336898940731018620198028325912792466079451577250509281486386103140451326341960063570306169179814183929223005609565950707361424470948960689925581581837168058717106645932836458567004804945610018069626714640529719626366585639427920439434002875148088072236077303509732545534140763434992729599348606183952740732911326869836870714430543752247435503231247801563749
 . . . . . . . . . . . . . . . . . . . . [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)
							6d80a473aba09a67aba5e61766f3959287fe8358
 . . . . . . . . . . . . . . . . [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 (15 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mandaum.com'
 . . . . . . . . . . . . . . . . [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)
							00f1007700b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018a834ad69d000004030048304602210092ea6499bb47c4d6a479b412d1d140eaf8274ca92f74aec51ec9efe78bf247cf022100d1d157dd49c1ffde00e77c6874950c36f92064a2abefae61576c904828c7e2330076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018a834ad6a600000403004730450220250a5ca866cf445668c9798eb7c9dd00798a6a2c3cd565ae323a3b762793c938022100c831e21dd3837a14e9cdcbf5960ed64e0a774c4368eb4de607819ee53b85ef8c
 . . . . [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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