itmmi.com

Issued by R3

About this certificate

This digital certificate with serial number 03:24:ac:01:a2:e8:32:98:b8:db:91:9a:d6:83:a9:78:c1:d1 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=itmmi.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:24:ac:01:a2:e8:32:98:b8:db:91:9a:d6:83:a9:78:c1:d1
Serial Number (int): 273815658716153337064581613132533886140881
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: dc:a7:56:0e:ac:68:33:86:b4:c0:fa:db:f6:0c:f1:2f:0a:b3:04:35
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): a5:7a:59:41:e1:f9:9d:a0:9b:8c:5e:ef:47:b1:40:bd:5d:68:36:6c
Fingerprint (sha256): cb:34:89:b3:12:eb:ba:07:0c:ea:ea:9a:39:41:aa:7b:cb:20:74:80:b1:46:7b:7f:ac:ab:5c:39:94:26:d2:42

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

Revocation information

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

Check the revocation status for certificate itmmi.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for itmmi.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

itmmi.com
www.itmmi.com

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Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4y0JnTPc1fJjOWRLyyDz
zRrT1v+roDkE/yZv7n5TQDghPUjHGxNevOMtCvn+xSZqCHFMaAx9fHfq1ZZdTfGg
A/5h0J+g72vaP1GcBDtWgyCPWOrPySu0M9vMSF4/9piRDoVg8piirVyARWWvvYM2
FnEwY6zNcuogPM/v7k2a9gUHqIa9Fu7Qs5fHUgTpYK173EYvYXVwaBjmQEWQ1ByM
b7b5hbqeVw9EKXUTkuNJ5Jo0Vx+jNbDQHxgotwGIVxnWUvu6klCgGZNbmzLyyAy7
pxs1bHdEVCpIz8ZgrtSl+CVHEFh/DaUa3utG2JzpGV+cJPuQY5GhdytmBdC739yq
VwIDAQAB
-----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 273815658716153337064581613132533886140881
 . . . . . . . . [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 2023-10-17 23:34:42 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-15 23:34:41 +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 'itmmi.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 28678304073386604226836411987909740201689965916950210173511677946258264333808305836111786075810771794923094739858142913595595079610847266469376238346158751474960190311199677185413495935635841817422869517023628719820000540515303846348684255869853142135400781621967633825866373129625706964003239538734275217653152278999590752135087216104939874382710112630165908114296315841762909452681748873207056239227456438767878691403307317013604685977135621294968561757916948729623937934657703549832572140706027371206540357351527287659202737646362904956546140937580126602973062486431029784680904769223851258914009077011353148631639
 . . . . . . . . . . . . . . . . . . . . [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)
							dca7560eac683386b4c0fadbf60cf12f0ab30435
 . . . . . . . . . . . . . . . . [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 (28 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'itmmi.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.itmmi.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007700dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018b4034c86c000004030048304602210085428d61f685ebfb5b1fe4b7af354821675bf6e43108e2a6bed7d7dae90a6672022100b6d0d20872dc9dbf865281c19a0c3eaa225f11623c06e850a12af61aba064cdb007500eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018b4034c88a000004030046304402204434ae074d94aa08bd701910205ea7e12a96ea57c90933f859cce61e383ff54802206a2416b4f234be8794d3cf34093995914f5dc03109c0994b8de411abf21263f2
 . . . . [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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