how.fm

Issued by R3

About this certificate

This digital certificate with serial number 04:58:a1:68:c0:62:94:93:5f:18:64:8c:3a:12:7a:36:ee:dd was issued on by Let's Encrypt.

With 3 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=how.fm

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:58:a1:68:c0:62:94:93:5f:18:64:8c:3a:12:7a:36:ee:dd
Serial Number (int): 378608541624311216219025895435286020026077
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: f7:da:a5:ab:0c:94:a6:89:5b:75:86:a8:54:52:f0:21:e2:65:5e:8b
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): bc:c1:69:df:9a:53:57:1e:55:60:61:48:38:b8:6f:3e:15:cb:6a:12
Fingerprint (sha256): cb:f1:d5:53:eb:85:44:ed:aa:7e:c0:61:51:5c:7e:44:c3:2b:26:a2:31:a6:a0:37:cc:4a:0f:5d:d8:3c:c8:ab

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

Revocation information

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

Check the revocation status for certificate how.fm

3

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for how.fm

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

how.fm
how.fm.engineering
www.how.fm

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Certificate

The complete raw certificate details for how.fm in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsHPVjyVXZkCZCufn1uEi
JEYBCtV2WH8EHR9J+9rKLDmj9OoTff64PcM6zHxfm/kpbgui6xkzPVldx5yk5Q2S
MsZlwLQh+xON3kv0AD7/CwyI5XuRky9AQGn+LXZp7Esluy8ukazVbWTZqJXYJl39
itRXSEuzQ1vUKco4kFNvM4WqXtCR/3rf5ezxZvWX/R458GSpl2mHjEwAwl/3JQgc
5rhzKelNXWXB0yQ1mRexD/PAm0V8IYQWQqxdTCpjJxPxxD1//N/xlnnE9ltCAkwa
tqa/Ep/c3DPvEirK3q2iXu+Iabu9KYaz1WxYqDn0YnD0Ctqra3/fd7fWLdo5dnlb
1QIDAQAB
-----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 378608541624311216219025895435286020026077
 . . . . . . . . [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 2023-11-13 13:54:20 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-11 13:54:19 +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 'how.fm'
 . . . . . . . . [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 22275061654571595594335273503780762866530182545841679760046214444958793313457739920901001617985543063600503917482484110992827056285610311728936427336642502298383993076994395474617368706263176034538837235402693429059338400378532719827156823145646743594973956411514039221038809983593830704408762343326565327414873264783167385020125718252268833633390159764290158399612172394289952667181504087629544317192423347762433807956536233993926927663033299415369577331950138428653717784988653288499565345302097068819330373660079623240109447550801380190532883885721479088292091552780932116202776882423397825788036115118460595952597
 . . . . . . . . . . . . . . . . . . . . [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)
							f7daa5ab0c94a6895b7586a85452f021e2655e8b
 . . . . . . . . . . . . . . . . [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 (42 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'how.fm'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'how.fm.engineering'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.how.fm'
 . . . . . . . . . . . . . . . . [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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f200770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018bc92d232800000403004830460221009b1376fe4cd81bc121c1295a9e1834537d061a4d6c3085f008b1ddc061501e15022100b6c94e17ef9b5ccb550c6575a61c9e309a15c6d0b4c2c11581c041472e6c9fad0077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018bc92d2326000004030048304602210098c1ff031e1559970ff9c69f971489ffd5401e3b489275925acd9921112fb614022100fe9f465e2264cc7fddcafb1d2c8350377c9682826d3040d1d32233d0d7f2b759
 . . . . [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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