*.katam.se

Issued by R3

About this certificate

This digital certificate with serial number 03:75:47:ee:26:1b:b9:1b:bc:d7:7d:8d:2a:ef:3b:a8:30:b0 was issued on by Let's Encrypt.

With 2 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:
  • 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=*.katam.se

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:75:47:ee:26:1b:b9:1b:bc:d7:7d:8d:2a:ef:3b:a8:30:b0
Serial Number (int): 301245506452311614067280975484018460471472
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 3a:65:95:09:22:70:88:54:b3:33:79:b3:ac:d3:8f:f5:dc:20:41:5d
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): a7:eb:54:59:6e:f4:d8:02:e8:22:01:f5:a3:68:2d:82:21:fa:ec:73
Fingerprint (sha256): d9:24:47:15:d8:c3:0a:8e:eb:91:f4:29:5b:0c:ed:70:1f:d7:34:ac:36:16:9e:7f:91:71:cd:8e:8b:86:45:c3

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

Revocation information

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

Check the revocation status for certificate *.katam.se

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for *.katam.se

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

*.katam.se
katam.se

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Certificate

The complete raw certificate details for *.katam.se 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 301245506452311614067280975484018460471472
 . . . . . . . . [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 2023-10-09 17:36:30 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-07 17:36:29 +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:12|false] UTF8String '*.katam.se'
 . . . . . . . . [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 787963110850692365632397825746488571578243639830229006646478998148097358473942731438662026634825324972087295288226019061159797928812924282810844918033488423303635770180780929203536859227152859577323455714770138418429189875654082749280788457595955813291459733251680649965654924021411189811332362604826304600542393414238026085777017550928785000921895315644501756054776651612589305128816404040696833387622902840908121020693879650839853205557107600565515736038420438397397517619213295132142038346479485465316839590774227550116242172819156502123212678497655500314649928937472504586173461335588760240328855942692346846468761797676224555207817310045993300937259078438984357972975809698453991959439476239405698410453764410215359534435724998885000240104400833510596110914138200323262723741785394832976107090834764109884042725833894552674457112211492962402714282612390735959911114677901814826961343641281606162543266842349183374688001282477120309172902616230486112052600432207063542637966852794552975039948578760875900504728621770588459517251983604900697851836189892098589226975931837386320646487128026326191599995668693541565189371909711774292076988760238671461524382734130614855474097979199291736120827746661822458278935047599565828497911353
 . . . . . . . . . . . . . . . . . . . . [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)
							3a65950922708854b33379b3acd38ff5dc20415d
 . . . . . . . . . . . . . . . . [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 (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.katam.se'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'katam.se'
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018b15b9f6cb000004030047304502210092d301127274610d3997354d3f89f812624c76e423c2eb53968b53af97c54b8d02202be73f8b4d9f3fc142358bf40c8a5ba7b66924c48975d565f9e3ed7d42ad2b5b007600dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018b15b9f6da0000040300473045022025e4f650cd154d14754e8d59a1c07e72b56a2f46d8af82f31cef653d3ceee236022100ca484e9065520b6765ad2beb9d2efbe39044e5ec6091b0294a26099b31955930
 . . . . [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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