itmmi.com

Issued by R3

About this certificate

This digital certificate with serial number 03:d8:35:cb:53:7c:62:f1:2b:ac:f8:48:36:c9:0f:4f:b9:d4 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:d8:35:cb:53:7c:62:f1:2b:ac:f8:48:36:c9:0f:4f:b9:d4
Serial Number (int): 334909353863537241502428038523226738899412
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 3d:98:90:dc:f7:99:bf:35:2a:18:d7:e2:91:d9:61:f8:6f:3d:25:b5
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 29:6b:8d:f4:84:b9:0a:6b:1c:38:33:71:89:62:45:6a:d5:ea:46:00
Fingerprint (sha256): 31:da:45:31:71:3b:66:4d:3f:78:26:c0:4c:95:21:51:31:e6:1c:f3:59:b7:85:59:7b:76:dd:a2:b1:36:2d:d2

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtUFVAEdxDrGjhnXdYcNI
13u8FwcY2Gwe22H5Azbp69k1t7BsrGIXWynHRl+XApbun5YK9dg8+ZdRAMxnxKsw
jPIPV5cYCi9abzm0OZ7TEivuPBN6ecn4vVqsfMqycdEtHJbK9gICOk6Pxg41Spth
5NvR0GGdGm44SCHeNZ41YIcDyGNIEYX5C81zoPaiS7yStPxaGqmdGbUxBM3FgJ9d
ALZMhRoOliUllodtP/w3nVNISE0WnyBzDVqdDER/L5Bbsr3j/uf1jvwBrgcCn+TE
eqZFL1NCPLN8ytIfOst8OJsZyQu/5TF9/dVf/lbb4W1cT+XzFdhHA/4rtZi2tZHF
tQIDAQAB
-----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 334909353863537241502428038523226738899412
 . . . . . . . . [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 2023-12-16 22:46:08 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-15 22:46:07 +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 22881349626288423965230417500849775457239274157531885476536611622207308669142325107211955339767979530445887870128026417820890757399516580761202172067753616873732530638193101491336463387786647862468906298948185328604068050813936616618490944270953114631671205935170097241637397148681759284902424887631692573891971170901875486119000566660783387843230065119794277337926904335526102544964590787411872885424623419701285090749526533665762477373105770231275075813825153168955638165650549084148463564119059511753573513351268698464150070932103753171707779444863749533500230019130246230277808907591904466213824490903318505309621
 . . . . . . . . . . . . . . . . . . . . [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)
							3d9890dcf799bf352a18d7e291d961f86f3d25b5
 . . . . . . . . . . . . . . . . [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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee007500a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018c7505de92000004030046304402204aa55b8f353cef1a950328fc56eedd3b20e5a6332e7f008b7d2501c08b2915360220712bc06575f9e5e0827cea8004dd07df1f2e584acc6508515a35545476f781d3007500eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018c7505de9f0000040300463044022040a43b44dcebf6880b30707fa8154b25fb038aec06a0501e94fd64dcb7c1f6bd02206159d7ed90d7a39938a4ee8c14aa7e2ca8f67e14d3bd1014a28e3d0825a76b55
 . . . . [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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