itm1.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:7d:78:2b:f0:4d:a7:4b:51:99:23:a2:74:a5:d7:eb:da:39 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=itm1.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:7d:78:2b:f0:4d:a7:4b:51:99:23:a2:74:a5:d7:eb:da:39Serial Number (int): 304031889162587803216542504259565164157497
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 38:9f:e7:f6:88:37:b1:e0:f3:99:05:ef:56:55:e0:3b:f8:7a:a3:d7
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 57:76:3a:10:df:35:a6:a1:20:22:21:f4:29:eb:a7:bb:84:51:2f:af
Fingerprint (sha256): c9:c7:5b:9c:3a:1a:57:af:2f:b3:81:db:8f:04:2b:1c:35:7f:73:35:86:1f:dc:8c:16:6e:0d:d1:2d:c3:fa:b0
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate itm1.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for itm1.com
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
itm1.com
Other certificates including the domain name itm1.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for itm1.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGSDCCBTCgAwIBAgISA314K/BNp0tRmSOidKXX69o5MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEwMTIxNjE5MjVaFw0y MDAxMTAxNjE5MjVaMBMxETAPBgNVBAMTCGl0bTEuY29tMIICIjANBgkqhkiG9w0B AQEFAAOCAg8AMIICCgKCAgEA0ssycd0yf4ZZHfGPrwBDY3igrzndGJsybNcES0y6 xdKWdT8sxtFUHJTPb0wtvtxUzLU6y+J9mcFpnIG/fDjGkNbxeL01Fci5ZcwL0pn5 0jY69bPtY2qMO1W+1sUMbHZzfCMzZR/MYZfCaHafqANF1yWRnBb1uZadIEzAXU8E iaLFp2frkvc0mY4oSlUeuquUEXbs389oYsRb+wxqMxmszeg815y5IR+1QE/PKdU/ Q3aEwPGMfrznZRO899vGTl3Mdh41VpfJVQ85mP73SBFwhcozWIYjRQ5ievPdjhEC tVFEe87pMoO86q7aFpqBgIUtfViKHQ5lGx56gfZeRhdKQwUi5SiMjrbwVfbWA/3q /cqV4K7NvsgG81hDrXAsF8K6diUkrn3bO1aFnCLWVEgwT1yembQHyVVwIREVD3no SgYVYkH4Ls/mTiYmMPhkuEqqUmKC1WAzJxuPRP3UQmJvCYq7Pxj3seBYWpAJD3Iy AnmSk7jZe6mRu4nWV7VyO3kNfSyiBQwzvLQ29X8A4VVRMlRO3uVlzK6ihJQt1FSQ 6GCsZoFc5cNBhy+ssaCUQyEjxsl6YH6js8iz58ewCrMuKNjFuyQgAFIXnkrIPndg YUbpIhr8IubC/M09PubzlxlFlzA3/D6rJywVl1N3RoS6kqC+QOKJzYH42N0/eD3S ZBkCAwEAAaOCAl0wggJZMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEF BQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUOJ/n9og3seDz mQXvVlXgO/h6o9cwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYI KwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0 c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0 c2VuY3J5cHQub3JnLzATBgNVHREEDDAKgghpdG0xLmNvbTBMBgNVHSAERTBDMAgG BmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRwOi8vY3Bz LmxldHNlbmNyeXB0Lm9yZzCCAQQGCisGAQQB1nkCBAIEgfUEgfIA8AB2ACk8UZZU yDlluqpQ/FgH1Ldvv1h6KXLcpMMM9OVFR/R4AAABbcD7ao8AAAQDAEcwRQIgIYsv CEyDkdP49Tem2fc6hlTb/qozRjLQPDVwXBHP2MsCIQDB1Ccrq1slaY3sVzzz1CxS m7+laxEItzjdo5cRpJoX3wB2AF6nc/nfVsDntTZIfdBJ4DJ6kZoMhKESEoQYdZaB cUVYAAABbcD7bI8AAAQDAEcwRQIhALFa9s3dTvLMnYyyeUQkHEggQqFqKxyEU3Gs EysLG+9GAiABBI6OlxJ3hb+l4cAm7RtapSJGdJrzT9I36rzrtIfLzTANBgkqhkiG 9w0BAQsFAAOCAQEAm8cHuzZD5NJCj0/qOTijeXARDbGlXj0AT+5c+XhenUf6dAZM jiKDmAlhAPOPF+u3Y9rlkK2gzbe2/rG+I5UGpO4tyC+qatvgOF0aJbfgIrx8a1nU Nz8HAP0gFAIDCvrE/C1ur6FiVqQ1AietrOe5QYQm25+qAyki2bJzVQP8q2F4rkav 2BHnW+VgyDzXg+ZbHaNF9oR4PKp9gJ/J5CJhIR1h72IqyUbyocaudKaPHKOWwGaE 6Y2A5uS7QbLZ0PVbWjztwkqOxGgY7lXwk5cghVyEXX5M1KXhpsVm4a2NO5SzojiU h7pSXG/Ix6Q+LLbBmESZls1sMd6ZfjNdGFp4rA== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA0ssycd0yf4ZZHfGPrwBD Y3igrzndGJsybNcES0y6xdKWdT8sxtFUHJTPb0wtvtxUzLU6y+J9mcFpnIG/fDjG kNbxeL01Fci5ZcwL0pn50jY69bPtY2qMO1W+1sUMbHZzfCMzZR/MYZfCaHafqANF 1yWRnBb1uZadIEzAXU8EiaLFp2frkvc0mY4oSlUeuquUEXbs389oYsRb+wxqMxms zeg815y5IR+1QE/PKdU/Q3aEwPGMfrznZRO899vGTl3Mdh41VpfJVQ85mP73SBFw hcozWIYjRQ5ievPdjhECtVFEe87pMoO86q7aFpqBgIUtfViKHQ5lGx56gfZeRhdK QwUi5SiMjrbwVfbWA/3q/cqV4K7NvsgG81hDrXAsF8K6diUkrn3bO1aFnCLWVEgw T1yembQHyVVwIREVD3noSgYVYkH4Ls/mTiYmMPhkuEqqUmKC1WAzJxuPRP3UQmJv CYq7Pxj3seBYWpAJD3IyAnmSk7jZe6mRu4nWV7VyO3kNfSyiBQwzvLQ29X8A4VVR MlRO3uVlzK6ihJQt1FSQ6GCsZoFc5cNBhy+ssaCUQyEjxsl6YH6js8iz58ewCrMu KNjFuyQgAFIXnkrIPndgYUbpIhr8IubC/M09PubzlxlFlzA3/D6rJywVl1N3RoS6 kqC+QOKJzYH42N0/eD3SZBkCAwEAAQ== -----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 304031889162587803216542504259565164157497 . . . . . . . . [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 2019-10-12 16:19:25 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-10 16:19:25 +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 'itm1.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 (4208 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 859963424750539599510068934561760349091242993858911947174550487426197238545697786529712964620371117886751374415174237311771415009284333235977982065931874034953223426230138498116807653191112276350647027488535825899406475492334438907775777373826239504751027560349166959866409064300253310964511899688356306967236670245716997084882693109035892841976547099372471803243949649649260453438246244719503652585847939187427599197259330077982058375729318643757725252073836272117037697885548580195071030894699692656706650227368329712836100825838653229727686962668871384244801401995177915326317616277232218599616471791563871257279908409508203535116736808119548920568892712867951506971198140530020130291299187928333265806978288448659589738967444901913143593685138839827658536524210412254894157475236151537761511130561922995098532357948479978006235052882819508289508968087231681497256099262409295844530477744596412787253419782295421397448384988550095078125290127092273717505652459026414603569051494931691989351462611746031048482329090435840096359205636817592912815597225335146098526518543806258918140604544264893096317453930063664591142257626677159502978680558721277561148868647024372849106210768330133243429598054715736065531727664552932788296377369 . . . . . . . . . . . . . . . . . . . . [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) 389fe7f68837b1e0f39905ef5655e03bf87aa3d7 . . . . . . . . . . . . . . . . [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 (12 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'itm1.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 (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) 00f0007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016dc0fb6a8f00000403004730450220218b2f084c8391d3f8f537a6d9f73a8654dbfeaa334632d03c35705c11cfd8cb022100c1d4272bab5b25698dec573cf3d42c529bbfa56b1108b738dda39711a49a17df0076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016dc0fb6c8f0000040300473045022100b15af6cddd4ef2cc9d8cb27944241c482042a16a2b1c845371ac132b0b1bef46022001048e8e97127785bfa5e1c026ed1b5aa52246749af34fd237eabcebb487cbcd . . . . [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) 009bc707bb3643e4d2428f4fea3938a37970110db1a55e3d004fee5cf9785e9d47fa74064c8e228398096100f38f17ebb763dae590ada0cdb7b6feb1be239506a4ee2dc82faa6adbe0385d1a25b7e022bc7c6b59d4373f0700fd201402030afac4fc2d6eafa16256a4350227adace7b9418426db9faa032922d9b2735503fcab6178ae46afd811e75be560c83cd783e65b1da345f684783caa7d809fc9e42261211d61ef622ac946f2a1c6ae74a68f1ca396c06684e98d80e6e4bb41b2d9d0f55b5a3cedc24a8ec46818ee55f0939720855c845d7e4cd4a5e1a6c566e1ad8d3b94b3a2389487ba525c6fc8c7a43e2cb6c198449996cd6c31de997e335d185a78ac