richman.xyz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:14:95:d8:b1:4a:48:88:1f:59:bf:e4:c7:9b:74:45:95:f7 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=richman.xyz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:14:95:d8:b1:4a:48:88:1f:59:bf:e4:c7:9b:74:45:95:f7
Serial Number (int): 355453971168824983198662299040802140427767
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 36:b4:7c:ec:81:75:c6:ed:2f:75:7f:16:37:b8:45:3c:2e:f4:49:a3
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 15:24:7f:22:f2:ee:2e:b4:e2:d9:dd:9a:21:b4:58:df:bf:b5:26:96
Fingerprint (sha256): 6a:bd:54:b4:ad:1c:47:a7:ac:73:89:1d:10:17:aa:be:2a:06:3b:70:6b:fa:72:a0:4f:e3:9f:7b:dc:f9:60:58

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate richman.xyz

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for richman.xyz

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

richman.xyz

Other certificates including the domain name richman.xyz

(limited to 100 certificates)
richman.xyz
richman.xyz
liquidation.discount
www.bites.biz
richman.xyz
richman.xyz
richman.xyz
richman.xyz
richman.xyz
richman.xyz
richman.xyz
globaltrade.xyz

Certificate

The complete raw certificate details for richman.xyz in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAnjrPo7VMP6mL+KDUYq32
MsztlYRbOxq1vyKs/0hDCTm4eQLKH5X08kWO7AGGVmT/UoSDsGLzTETGJvR/dCzU
/KgBH2UedCp7hz79u4j/XbdA1T/vNjmnXj0p70hF5/3GeT3Mr4ND5hCrBYVkh4Va
eRRRxU6SCxAPGVGOj3Alx4/AkrvZK4tZAIOSiqpWW2UIWZlC168AkhUKjHvNTXY3
cDlIUWKEyo/kBjZEnSaGl+Z/lZgjwjioa/IuZgbiKFvN+r7MKGNojvNtT3AeIkn+
ywsmsV37wPv3wh0bPKXimXAyftLF3aNv2sAoV7YpCbR2etSHJ196QSf0PZRCMhmD
rRzfOtdAeiIl3/OjVEMU5Zh+mH0GERp2l9I1dLWtKx6D2qNQoRxvHggqC14d2SmS
+tW4V8rWzwS36bICp2jt53VI3LtKeJO1356558gtW4+oL0UXgwXmsDhLgNrc7o6K
xzjE4tOs+pupvKjbmRoadPmjjKGDKIIHs9zauqhJtLNh0bCw36JvBIV5XMag9kMq
e9y062nATju2shHZzh0ZhH0Ci1sO8s4+IyPFpPA7z/XL+GX25pYnXH14GH5f0JUK
aXykTr4gpX03/N6M9JWrZoJ4W3YKEnfcZ+TsFlDNLh6Q/0H6JFDLJyciehBVS4Va
WoqpjpUKufpyxdciXVPR1VUCAwEAAQ==
-----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 355453971168824983198662299040802140427767
 . . . . . . . . [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 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-02-12 01:01:25 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-05-13 01:01:25 +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 'richman.xyz'
 . . . . . . . . [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 645520982753219232528505297301653148943441977326116473160929668255088029801106708021223395573351669473589364510911693106278885028493249962500139998995787887031164462507716663662502043887708286150939646001839380720168953150501466506852362365045402031575759669158531869422581846288374953318540427580802754691471142080593987809948972393439877688792103084428789637170938322447439369664374406612331772199965763698440539662111630054588084339191739569820301261870524379866823274996099994332495688166461865194767386820112813199594722029980805719319969215329992856998103613885760933385292511071591337601573205958526614975652376183382751679869330981034594717385126005326803531151203082695391908658894670672603200068734756544207375276662142396133595381275054462498897094777476807674352356896396399340228037714714029006327870603804882475404932097395456186312464361896339378737236309805622880318468991793344506693621107054135846129996768849098056871912403668836358028144789421403451989587722611318399324697810733425720323282441204154775721588738964504122451814906678936433218533403267899428434706200996824931774855540335312997185004345797756011459258107462217600442527303064196409996324220274412368828367333729177145377369021288620531543918630229
 . . . . . . . . . . . . . . . . . . . . [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)
							36b47cec8175c6ed2f757f1637b8453c2ef449a3
 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 'richman.xyz'
 . . . . . . . . . . . . . . . . [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 (69 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 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . [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)
							00f0007700e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe00000168df6ffdcf0000040300483046022100ddb7469034660548df3f7724f6b36d8f49746cdbe98995b96a96b33d0bfaeb50022100c8c21b2e309f0d34d3ee3842ad7ba74b1ee004ddb93d985a93694bc6a4db018000750063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d00000168df6ffd7700000403004630440220783b7205aa82a1a792f46a19dc07baa5ea23b38f752163037d355e2179dc75fb02204abd22abcf5cd9763dc3be1e865de1ccd206547793f269cf560a2711d1df5f15
 . . . . [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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