itm1.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:b1:3c:a5:5e:a4:17:fb:e1:d6:8f:ef:8f:ae:71:13:37:5b 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): 04:b1:3c:a5:5e:a4:17:fb:e1:d6:8f:ef:8f:ae:71:13:37:5bSerial Number (int): 408759735000323191876139258449841372739419
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 78:21:20:d3:bf:e8:cb:10:01:07:61:ec:3d:8b:8f:ac:3c:30:bd:f2
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 97:d8:03:8e:76:0f:0f:6f:74:fb:d9:13:89:c0:22:a7:91:75:34:65
Fingerprint (sha256): 71:2b:01:98:b1:77:0e:15:2e:b1:b4:0b:9f:ba:b1:ef:8c:78:15:3b:59:29:0d:ef:1a:e1:af:29:d2:32:0d:a2
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----- MIIGRzCCBS+gAwIBAgISBLE8pV6kF/vh1o/vj65xEzdbMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEyMTIxMjA3NDBaFw0y MDAzMTExMjA3NDBaMBMxETAPBgNVBAMTCGl0bTEuY29tMIICIjANBgkqhkiG9w0B AQEFAAOCAg8AMIICCgKCAgEAxpxPdRSXEB29Q7IhNy7bT09/xbcwqRC1Pw2wko27 s2F5WLv/Ekm0mhnT5Z/T4ohd46c1/3zK4lWnMNd7uhD9o27gFi53kg8lpLP2zekM YpafiUfwz2bYEWBCifNLeqwau794zlZZhmjCFjXTXT8uUrzdnzDyomHMVbMZZ1M3 GNCDBfG67xA3+DoBeRAqRoqY9b42hInubiJQ2NLeOZTmrDS5oDfcudDrAh57i3z+ +p+xfB/HB5ntqvbvyZ1EzKrlC8y+zIErHp6Wp53YbI2L9lPX8c7ppwdviMZEv3Mm AumquXMXtYjoEZRh8dXh+wTkPszFCIqwbUwnWTq+JxxsXZK5Va6M/zVXwK0+UtJh zUlBBjfWwMioLVVp/HT3q8eaZzbSL9/KaxmpxzCG68JvnNXSnQ15tClHrtA7bu9B 8DW6s/PPsPy85ud6HM+hvEDlaSr0jMQSFYn7ywTW6Q9spBuEz6nOptuC+BUW4wVW ezWZ8hoK7AdMbpNjFXPD/Sb2xmytjc71gG1xwZjZgc9KKZy7t7g0T9yrG1wd9oA5 JLREAu/Hca14RDFhQLVISUOb8tU4d8CkQAh0Lh1czz1i1+a0uIDkbHJo4ni7O3wJ kTB0893t53NunNhtWz+W//cRI5Ydey1m9uh9fVsmWufbE7KPQCrdQIzV0v+0hRZ+ suUCAwEAAaOCAlwwggJYMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEF BQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUeCEg07/oyxAB B2HsPYuPrDwwvfIwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYI KwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0 c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0 c2VuY3J5cHQub3JnLzATBgNVHREEDDAKgghpdG0xLmNvbTBMBgNVHSAERTBDMAgG BmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRwOi8vY3Bz LmxldHNlbmNyeXB0Lm9yZzCCAQMGCisGAQQB1nkCBAIEgfQEgfEA7wB1APCVpFny ANGCQBAtL5OIjq1L/h1H45nh0DSmsKiqjrJzAAABbvo42l0AAAQDAEYwRAIgeDwu 61zthrthnVqAc1pDrXbe9kLwFOGsmm6XPD8meb0CIFD+jg9Yd5RLsqQxU9Bfnqzv qVzJ/z5oNf80796aohG1AHYAB7dcG+V9aP/xsMYdIxXHuuZXfFeUt2ruvGE6GmnT ohwAAAFu+jjalQAABAMARzBFAiAdOoEbbhPOyeQ5ETB7nzXhMvVZKJ1LCEu/M0MU u9hs7wIhAI2zItIeReT0zlctBbolnJTua+fdoJJQ7Ail0d3HBsjbMA0GCSqGSIb3 DQEBCwUAA4IBAQAobkHlj0A2OFPJf/f7Ps8nxAuI07sLPKoWIga1/aqlHG8ei5Z4 FGxvGD6v3k5oQBm1dlSLuAWkCZouVDfVRbgMSabGwfbNg+302HI5RHm5PyVT57+R lIpXBIeR6bYqJJON5sZAwJv32Ljs7xtoIU/kLiRmwAE8INwqdzwGxWsOuXcLreIM DaJ+t/7w8TtIfNoZhlNbvnO4+ye7+WRXwMXvIon9FXZhbzB7Oih0PRIHJjymKzsT CpICI3XKjDk7S5wWgbHWObeolCZ2NKZ3J3mMb21qkjd0/1cssWnxDChmx2aihiyB GO5o6QcxjFju/a5Zbrx+JjCyW0+PC736cQyY -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAxpxPdRSXEB29Q7IhNy7b T09/xbcwqRC1Pw2wko27s2F5WLv/Ekm0mhnT5Z/T4ohd46c1/3zK4lWnMNd7uhD9 o27gFi53kg8lpLP2zekMYpafiUfwz2bYEWBCifNLeqwau794zlZZhmjCFjXTXT8u UrzdnzDyomHMVbMZZ1M3GNCDBfG67xA3+DoBeRAqRoqY9b42hInubiJQ2NLeOZTm rDS5oDfcudDrAh57i3z++p+xfB/HB5ntqvbvyZ1EzKrlC8y+zIErHp6Wp53YbI2L 9lPX8c7ppwdviMZEv3MmAumquXMXtYjoEZRh8dXh+wTkPszFCIqwbUwnWTq+Jxxs XZK5Va6M/zVXwK0+UtJhzUlBBjfWwMioLVVp/HT3q8eaZzbSL9/KaxmpxzCG68Jv nNXSnQ15tClHrtA7bu9B8DW6s/PPsPy85ud6HM+hvEDlaSr0jMQSFYn7ywTW6Q9s pBuEz6nOptuC+BUW4wVWezWZ8hoK7AdMbpNjFXPD/Sb2xmytjc71gG1xwZjZgc9K KZy7t7g0T9yrG1wd9oA5JLREAu/Hca14RDFhQLVISUOb8tU4d8CkQAh0Lh1czz1i 1+a0uIDkbHJo4ni7O3wJkTB0893t53NunNhtWz+W//cRI5Ydey1m9uh9fVsmWufb E7KPQCrdQIzV0v+0hRZ+suUCAwEAAQ== -----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 408759735000323191876139258449841372739419 . . . . . . . . [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 2019-12-12 12:07:40 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-11 12:07:40 +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 810260504825718223610416575586173763502064041665339382384489300750731122881481662147044902233574513923790109094691189111744857782019013014841553699689906980239308283649662556323114974910872109028164326017552287134758846459065225033612330110448935354480279066199013975276651602968362444784163029460561945380715198534164433927803917066495292034846388047161537130230552125855664631411208389673458720271922639281176708739656296145430592869897096153787707914419815140844092290348048864345859276665625325660462825208365533584295711225038179167282638592123828947978060538649079558580915515451966182320498544681966576491211283071999815274195710958488574172838963606393612188506049638881822969126381867932097373876786399208320908565555717561644610495014007771321931961994096592961767361134450754841906209574642106591190745651486095035901364720265231308638865562935846999338866792286879479626395123005226001248886464942698639646579254781105905934622811006255099688430144746477880916561354108186825762641589422571440019197486031607052730510414854453216591050227200877490094977909982275145958637434743787676120053367810470467216379767459815036957567703445199681972709120211045144787952171167473052116532362905849788164669492495503722643038581477 . . . . . . . . . . . . . . . . . . . . [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) 782120d3bfe8cb10010761ec3d8b8fac3c30bdf2 . . . . . . . . . . . . . . . . [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 (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef007500f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016efa38da5d00000403004630440220783c2eeb5ced86bb619d5a80735a43ad76def642f014e1ac9a6e973c3f2679bd022050fe8e0f5877944bb2a43153d05f9eacefa95cc9ff3e6835ff34efde9aa211b500760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016efa38da95000004030047304502201d3a811b6e13cec9e43911307b9f35e132f559289d4b084bbf334314bbd86cef0221008db322d21e45e4f4ce572d05ba259c94ee6be7dda09250ec08a5d1ddc706c8db . . . . [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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