how.fm

Issued by R3

About this certificate

This digital certificate with serial number 03:11:ee:8d:f2:6b:53:f2:e7:4b:80:b2:14:43:2b:88:ed:37 was issued on by Let's Encrypt.

With 3 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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 will expire on

Certificate Details

Serial Number (hex): 03:11:ee:8d:f2:6b:53:f2:e7:4b:80:b2:14:43:2b:88:ed:37
Serial Number (int): 267438751326637075588049277658253333425463
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 75:54:3a:2c:99:e1:cc:5f:4b:2a:d3:2e:96:5b:26:b8:86:ec:07:f0
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 40:b1:15:67:45:32:2f:08:f0:f1:5e:b3:74:bb:f5:61:c0:bb:f7:80
Fingerprint (sha256): 2f:f5:8f:54:72:ce:34:08:03:77:32:ff:74:fb:94:97:be:1c:24:e1:8a:cb:dc:bb:c2:9d:c8:8c:f8:e5:43:54

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-----
MIIE+TCCA+GgAwIBAgISAxHujfJrU/LnS4CyFEMriO03MA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yNDA1MTMxMzU0MzRaFw0yNDA4MTExMzU0MzNaMBExDzANBgNVBAMT
Bmhvdy5mbTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBANcUt/7xMn4j
NXn4tdJoHQyftZ1SdNLFCQaS+ai9Wa3Nhi7YmrnyIBxNM2zpbWI/ZAxktrKQpbe7
b1QT+sFGNNRnwZz4Zr/GawpN4YwyKVrCXxURtVNcKn0rGI1hVhQCk1ocOZYhllg7
U5jyQ1rwlZyAhH/RHOlzzPLD2o7ea15MyXt0vt+PZaPhZUSBwLfpXG9MEYo+gfHM
G/UO0enY67X01kRfMQuZHMORqWhgqQVeeh8HTkqSaLirSMkecQJvGZSYpFMxnjjR
pSOfzB95sd01dr9VcH5FsdFUXMWd/bFtuPQolk2kiTANVLiXjesJltGbFE0ZDE2B
H7RWsHwvccMCAwEAAaOCAigwggIkMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAU
BggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUdVQ6
LJnhzF9LKtMullsmuIbsB/AwHwYDVR0jBBgwFoAUFC6zF7dYVsuuUAlA5h+vnYsU
wsYwVQYIKwYBBQUHAQEESTBHMCEGCCsGAQUFBzABhhVodHRwOi8vcjMuby5sZW5j
ci5vcmcwIgYIKwYBBQUHMAKGFmh0dHA6Ly9yMy5pLmxlbmNyLm9yZy8wMQYDVR0R
BCowKIIGaG93LmZtghJob3cuZm0uZW5naW5lZXJpbmeCCnd3dy5ob3cuZm0wEwYD
VR0gBAwwCjAIBgZngQwBAgEwggEEBgorBgEEAdZ5AgQCBIH1BIHyAPAAdgB2/4g/
Crb7lVHCYcz1h7o0tKTNuyncaEIKn+ZnTFo6dAAAAY9ycsHxAAAEAwBHMEUCIQCB
qKFSc+qrBCwAoCbfUYUVWfuNqy2tKU/qs+dWv4qO6gIgTYhDDO/YIXMrQnWQW3fR
lD1wXFWa3Wc6GAARpKCvVrUAdgAZmBBxCfDWUi4wgNKeP2S7g24ozPkPUo7u385K
Pxa0ygAAAY9ycsHQAAAEAwBHMEUCIQDhiBgRwMDVFbZeMeM1X72PHp86sNModOAu
6C92+VQqawIgaZob21A5ZfTUCn4ks/77LRlQ7Fcymy1wmuF9DtIXEEMwDQYJKoZI
hvcNAQELBQADggEBAG97B2SRxQpi3a3i+7l6WRFGbu5yJlheW+NdZsANbuez/3Vu
FiiLNsxT2e5jOFYp7n3gONzf/2G8XkW/dpKCnpise0dvb0JFXH+UTxmajXniwNrV
9WfpXrRmiTC8+eCwSh32ehhN9WCisHy5ThTl7K2jV4rALefaUmA/2X5zPn4V5nEd
GZJO7BgiusjF768el2neoSozz4WYcsb38FqKRgBV8p35F+0zBb+MaaCciPnjhdTu
Vd40E5YwMksqm7JslKAQRCLZzMCiGC+4hPBzy11Ga+KR1D1ie70srFAmijPwRWh0
kddL2aXFNdY1iNp/9WzfeH/ai/YU+NCs1Yru1A0=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1xS3/vEyfiM1efi10mgd
DJ+1nVJ00sUJBpL5qL1Zrc2GLtiaufIgHE0zbOltYj9kDGS2spClt7tvVBP6wUY0
1GfBnPhmv8ZrCk3hjDIpWsJfFRG1U1wqfSsYjWFWFAKTWhw5liGWWDtTmPJDWvCV
nICEf9Ec6XPM8sPajt5rXkzJe3S+349lo+FlRIHAt+lcb0wRij6B8cwb9Q7R6djr
tfTWRF8xC5kcw5GpaGCpBV56HwdOSpJouKtIyR5xAm8ZlJikUzGeONGlI5/MH3mx
3TV2v1VwfkWx0VRcxZ39sW249CiWTaSJMA1UuJeN6wmW0ZsUTRkMTYEftFawfC9x
wwIDAQAB
-----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 267438751326637075588049277658253333425463
 . . . . . . . . [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 2024-05-13 13:54:34 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-08-11 13:54:33 +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 '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 27151452356153346403548608993979005142920231432043390092381999040501488108866133388278757034220790417112039818756691492142186874335836312743619799572027583649041103138358170261728046883144148009359146565490505693924586369963687153328524084126701004633780692124005058301814287148223389045402894903755741835985065835195163807373105415866365302306372193644493179093804093748878501525925165750213331598678701717631356127349449568888008802321370008764297043271908985177319181215190243161856648662308682778293352099805276456538555349697086236430139237093614315194163726043047413102553792227129141327084987781652850876051907
 . . . . . . . . . . . . . . . . . . . . [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)
							75543a2c99e1cc5f4b2ad32e965b26b886ec07f0
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f000760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018f7272c1f1000004030047304502210081a8a15273eaab042c00a026df51851559fb8dab2dad294feab3e756bf8a8eea02204d88430cefd821732b4275905b77d1943d705c559add673a180011a4a0af56b50076001998107109f0d6522e3080d29e3f64bb836e28ccf90f528eeedfce4a3f16b4ca0000018f7272c1d00000040300473045022100e1881811c0c0d515b65e31e3355fbd8f1e9f3ab0d32874e02ee82f76f9542a6b0220699a1bdb503965f4d40a7e24b3fefb2d1950ec57329b2d709ae17d0ed2171043
 . . . . [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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