itg-dns.com
Issued by R3
About this certificate
This digital certificate with serial number 04:5b:d9:23:2d:1d:19:cc:1d:25:75:bc:52:d9:93:de:38:ad 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=itg-dns.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:5b:d9:23:2d:1d:19:cc:1d:25:75:bc:52:d9:93:de:38:adSerial Number (int): 379703464237335794986041023145622221240493
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: b3:b1:5e:1b:32:23:48:32:0a:b5:6e:e9:50:49:cc:3e:9f:f4:62:61
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): d3:20:bd:bb:7e:ac:61:a5:ad:e7:6c:71:14:7f:29:c3:82:95:c8:33
Fingerprint (sha256): 59:c0:60:80:a6:05:a5:45:b8:a7:ad:af:64:4f:c4:f0:ef:79:08:56:bf:5f:e1:0b:31:c5:df:f8:45:09:b9:32
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate itg-dns.com
3
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for itg-dns.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
itg-dns.com
webmail.itg-dns.com
www.itg-dns.com
webmail.itg-dns.com
www.itg-dns.com
Other certificates including the domain name itg-dns.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for itg-dns.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFCDCCA/CgAwIBAgISBFvZIy0dGcwdJXW8UtmT3jitMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yNDAxMDcwOTQ5MDBaFw0yNDA0MDYwOTQ4NTlaMBYxFDASBgNVBAMT C2l0Zy1kbnMuY29tMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwXuk XqVpU8qWBLh78su7bOT/h1DqXgYjMhwDQonSFUHfeTMg6y2muKAPM5C05DopqJfA 0bL4Fx6Wfcy8dg8uunhOYpdeQWMH4KdOCgee+qS5gWq9UBIG1/hp1tjiAGYXdabG nyCPgrpymydyj2XRzpIwMISHnFi/hwYvnugtPgjhZ/J+1oRND9izjs2Rlhuk1eJE S64WD/0vLMj4QRM5NKfN8Lp19lFYoRdnux7WrmlpPZ8/H+Zpx7pNH9dz+5rgl5eC 0LrCtQMFuMfGh/DLRtCvMV7sHV92zHeM0Qn3YBRI2VAEJ2zI4d0/B8ItyefKYLee Rhw0xNWLgCWCgLTjoQIDAQABo4ICMjCCAi4wDgYDVR0PAQH/BAQDAgWgMB0GA1Ud JQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQW BBSzsV4bMiNIMgq1bulQScw+n/RiYTAfBgNVHSMEGDAWgBQULrMXt1hWy65QCUDm H6+dixTCxjBVBggrBgEFBQcBAQRJMEcwIQYIKwYBBQUHMAGGFWh0dHA6Ly9yMy5v LmxlbmNyLm9yZzAiBggrBgEFBQcwAoYWaHR0cDovL3IzLmkubGVuY3Iub3JnLzA8 BgNVHREENTAzggtpdGctZG5zLmNvbYITd2VibWFpbC5pdGctZG5zLmNvbYIPd3d3 Lml0Zy1kbnMuY29tMBMGA1UdIAQMMAowCAYGZ4EMAQIBMIIBAwYKKwYBBAHWeQIE AgSB9ASB8QDvAHYASLDja9qmRzQP5WoC+p0w6xxSActW3SyB2bu/qznYhHMAAAGM 44pM6wAABAMARzBFAiBohFOvOqTEWvDSvqSL2qaYVsLjjeCxjTZktCcdF4zMYQIh ANKH66uK9FmsKY3Wb5G2SHRFNbJ72vQRl8yFP6sHmwjhAHUAouK/1h7eLy8HoNZO bTen3GVDsMa1LqLat4r4mm31F9gAAAGM44pM8gAABAMARjBEAiAZZz+5gaQYGHNn WDWE8BNzut9H+7eJ46FpCek/zhaRHgIgc35Pyu4Xy621sVRGf8TaZPd1DY1ztEPk mVDf7hLu8MswDQYJKoZIhvcNAQELBQADggEBABLT8eOjYLkrTgP8DMxbwsGBHMfU 23q019RpjBAqv8VRFdL8qgCxkLCn2Wbc2P1b3pPAw4ug2Ok99fCd2CANjHzjZ6kw On4QAr4ahNycOkVwJJVO+O1byCg9zpHFx064Pj5iUqDssilQdb53oTQvG6210JRC rWU6HWOnCoJriyCOztVxrO8tcgFZ+PRZm5kzCQioP8JS/swqiHZ8Y8bBIx5CZ6ZP T3CcV4q/yV6D0PTx4rmZzgysPxGAJZS4XlfsqLhUMUT8ZPj6TYnITqZ0qsbfFyeO ia7XkLWX010IvsnjmuF3JeS+XCIVqJ/1PcT8niYOIcDBkkcWHoe3J3vthJE= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwXukXqVpU8qWBLh78su7 bOT/h1DqXgYjMhwDQonSFUHfeTMg6y2muKAPM5C05DopqJfA0bL4Fx6Wfcy8dg8u unhOYpdeQWMH4KdOCgee+qS5gWq9UBIG1/hp1tjiAGYXdabGnyCPgrpymydyj2XR zpIwMISHnFi/hwYvnugtPgjhZ/J+1oRND9izjs2Rlhuk1eJES64WD/0vLMj4QRM5 NKfN8Lp19lFYoRdnux7WrmlpPZ8/H+Zpx7pNH9dz+5rgl5eC0LrCtQMFuMfGh/DL RtCvMV7sHV92zHeM0Qn3YBRI2VAEJ2zI4d0/B8ItyefKYLeeRhw0xNWLgCWCgLTj oQIDAQAB -----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 379703464237335794986041023145622221240493 . . . . . . . . [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 2024-01-07 09:49:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-06 09:48:59 +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 'itg-dns.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 24424963035154270472810001715669004818371561870975409981111020659865892447891019665049772963913159272026207613895189225573572234331044622338745008106623899421881111478181872621744100043776470635966323910468730179921877052158117001609228671796281984643567758761296472380191716387247371694179565465008269481138297339286004452899037280086476966631227099451794962256558032593433651372780861312702674479336963800652963054520643183678611440504262148139658791278462409913918886511343740559909040988557869050786654451486787189030554231527732473456218632363301024541576843809618090885107094532706594800738168211391121703887777 . . . . . . . . . . . . . . . . . . . . [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) b3b15e1b322348320ab56ee95049cc3e9ff46261 . . . . . . . . . . . . . . . . [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 (53 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'itg-dns.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.itg-dns.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.itg-dns.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 (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef00760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018ce38a4ceb00000403004730450220688453af3aa4c45af0d2bea48bdaa69856c2e38de0b18d3664b4271d178ccc61022100d287ebab8af459ac298dd66f91b648744535b27bdaf41197cc853fab079b08e1007500a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018ce38a4cf20000040300463044022019673fb981a418187367583584f01373badf47fbb789e3a16909e93fce16911e0220737e4fcaee17cbadb5b154467fc4da64f7750d8d73b443e49950dfee12eef0cb . . . . [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) 0012d3f1e3a360b92b4e03fc0ccc5bc2c1811cc7d4db7ab4d7d4698c102abfc55115d2fcaa00b190b0a7d966dcd8fd5bde93c0c38ba0d8e93df5f09dd8200d8c7ce367a9303a7e1002be1a84dc9c3a457024954ef8ed5bc8283dce91c5c74eb83e3e6252a0ecb2295075be77a1342f1badb5d09442ad653a1d63a70a826b8b208eced571acef2d720159f8f4599b99330908a83fc252fecc2a88767c63c6c1231e4267a64f4f709c578abfc95e83d0f4f1e2b999ce0cac3f11802594b85e57eca8b8543144fc64f8fa4d89c84ea674aac6df17278e89aed790b597d35d08bec9e39ae17725e4be5c2215a89ff53dc4fc9e260e21c0c19247161e87b7277bed8491