www.itm1.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:5e:28:94:19:8e:85:af:f6:d8:11:f0:9f:f4:ed:fa:11:64 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=www.itm1.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:5e:28:94:19:8e:85:af:f6:d8:11:f0:9f:f4:ed:fa:11:64Serial Number (int): 293377338383967428697163998608083983667556
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 88:9d:4d:20:db:77:4f:01:d9:87:ed:84:36:11:5a:a8:09:36:58:fb
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 71:61:29:34:fd:a2:ae:59:76:81:d7:dc:6e:e5:1b:d0:bb:c9:9a:b7
Fingerprint (sha256): cb:cc:33:f4:7b:83:69:2b:74:eb:45:a4:ac:f5:70:4e:b3:4a:68:23:1c:e4:e3:96:d8:b2:8f:2a:ae:f9:49:1f
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate www.itm1.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.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
www.itm1.com
Other certificates including the domain name itm1.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.itm1.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGUDCCBTigAwIBAgISA14olBmOha/22BHwn/Tt+hFkMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEwMTIxNjE5MTJaFw0y MDAxMTAxNjE5MTJaMBcxFTATBgNVBAMTDHd3dy5pdG0xLmNvbTCCAiIwDQYJKoZI hvcNAQEBBQADggIPADCCAgoCggIBANeOHjg+9NFNpQllJY6qapYZ31VHS08ki8T9 jw7p8TbCWSNmFzSgFwLZYmmCKxMrbV7stMZlAKcoEjIjQO42uygddiNSW/cSWzkn 9me5c8j/kiZTZ9QZgm2IKIYVJ5pap8dpMpYhmgpcEUC7QK0O+sb6BMWXHdijFhzq 3M8+uVY2DehBckSSgd9vORfrb7rd5gYNkmAzz6ofJJmXW3m1i/CjbxvPymy/fGNp UaDVVCJ2ap5b42Xowt4IRIun1jSTb6fIM3/fB+zMLrFbur9xH79AkvQi9q+NkwHJ WQAEIpihhTOICJ5UxDeCOg46Qsg2O0uzMVX+4WIsd/GIQzaz7/oWJNA3FNUNW0ai qxtmVUWKyLT2Tab7bLXpzfmb9aw0tbyWqeN+CrTnvuYSjmgscTkw/9xS7kt2UIxp uO7wII11RNM4xLpN4y4H4aw5ZzRZ5Pd7I+aHM4Q3O7ypmUGeL2sRRKQCXmRIFwtB 4LCoVSfjJbCxyAFNWoOHtiMubTEStVa2UszZxsUdaUBbR6dnBDiI4S64UTMWUTPU kl2zXlemd2ZLUAMgRr/kupVMTzQyDijh+R73cbodDl060ZA6aR7JgVWAkYgIyA1s XR1FbQiMFjC+k4/a9CZ/xhJc+LAjV8JheooQj0YbyLMR80Oj2tHhhGe8eVLPt0og qFoaha4fAgMBAAGjggJhMIICXTAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYI KwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFIidTSDb d08B2YfthDYRWqgJNlj7MB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyh MG8GCCsGAQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgz LmxldHNlbmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgz LmxldHNlbmNyeXB0Lm9yZy8wFwYDVR0RBBAwDoIMd3d3Lml0bTEuY29tMEwGA1Ud IARFMEMwCAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0 dHA6Ly9jcHMubGV0c2VuY3J5cHQub3JnMIIBBAYKKwYBBAHWeQIEAgSB9QSB8gDw AHcAXqdz+d9WwOe1Nkh90EngMnqRmgyEoRIShBh1loFxRVgAAAFtwPs38AAABAMA SDBGAiEA/fYTl9IkA0YUnQUVlY/dDEpveVZ14dMr8/6R7tgnZ8ICIQC7gwvlMFUH 34zqzCDfFTW3g07pgu/4Fsvl+/6p423JEgB1ALIeBcyLos2KIE6HZvkruYolIGdr 2vpw57JJUy3vi5BeAAABbcD7N98AAAQDAEYwRAIgLsPDmHg9Q+wyzSOV+RPtbox4 iql4V5TzuWd8jxnb/cwCIGqmipQM9xeTHRWLGRWjFihFnxxm31/eK86ja+QuNgGK MA0GCSqGSIb3DQEBCwUAA4IBAQBgb1kHSOfpNrdE5NkuG/4gqO4LgmCQPKUtOUXK JOsqLE/mAEiaqieFbQerm0pm7P2ltQu6HtzQLCn4/r5xycszJ0l5WLIZ0gniC1y+ jjiRLRswvAAt4m5oZI6AbyaHjXscyT7TFG8sCN0al+Z2X7i9vnZIKkFt1R0MR5qd dJJGKNcBHLoRk7ZaAjtkaFFJqNTFgeNn2e/7mp2q8Vs8X/aiOnM1sAhUOeSWUPbN ITBTlANMKHc04D1QK6YnJmn/lw2o0oawOe69YIHC+qwya30CN0mwrfnXJmV+vw0o tbHm2TVUbTtQYgxUONHZ2WUKWRxQGJEwbQfjmHYuuI8ai9Y4 -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA144eOD700U2lCWUljqpq lhnfVUdLTySLxP2PDunxNsJZI2YXNKAXAtliaYIrEyttXuy0xmUApygSMiNA7ja7 KB12I1Jb9xJbOSf2Z7lzyP+SJlNn1BmCbYgohhUnmlqnx2kyliGaClwRQLtArQ76 xvoExZcd2KMWHOrczz65VjYN6EFyRJKB3285F+tvut3mBg2SYDPPqh8kmZdbebWL 8KNvG8/KbL98Y2lRoNVUInZqnlvjZejC3ghEi6fWNJNvp8gzf98H7MwusVu6v3Ef v0CS9CL2r42TAclZAAQimKGFM4gInlTEN4I6DjpCyDY7S7MxVf7hYix38YhDNrPv +hYk0DcU1Q1bRqKrG2ZVRYrItPZNpvtstenN+Zv1rDS1vJap434KtOe+5hKOaCxx OTD/3FLuS3ZQjGm47vAgjXVE0zjEuk3jLgfhrDlnNFnk93sj5oczhDc7vKmZQZ4v axFEpAJeZEgXC0HgsKhVJ+MlsLHIAU1ag4e2Iy5tMRK1VrZSzNnGxR1pQFtHp2cE OIjhLrhRMxZRM9SSXbNeV6Z3ZktQAyBGv+S6lUxPNDIOKOH5Hvdxuh0OXTrRkDpp HsmBVYCRiAjIDWxdHUVtCIwWML6Tj9r0Jn/GElz4sCNXwmF6ihCPRhvIsxHzQ6Pa 0eGEZ7x5Us+3SiCoWhqFrh8CAwEAAQ== -----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 293377338383967428697163998608083983667556 . . . . . . . . [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 16:19:12 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-10 16:19:12 +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 'www.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 879388283383236998148540064217842819725652868809835476526286407580087623832605987703266142654871553624418260641961636631016836611023981662668811308516868059994812727520954795792024255472808193788091761067192901396718601059613457656832569755773421680477834504831355631979924648093821526009213134963538589879917587116836320057847455841958076724059613565873746101523675917758274339023281687276507352464588793727869549034075120834141259137904898926233526136457031727384044902801991393087434714798432274244398557499409712718964223454352188527028784359526852655591063651189095903276303706762435876206421878737191353212594794118680050922165293399137979933203907169695051156820009683786695208306126589297456911703347391912003524820973516719348901357241527862910162204425413969740960818909924246657651648658980260829852087028364204369100621818886242741337598340655758935148752720254502103067807605819650220419178918822729894014598493102694995237261147118703907778095290981885088868087213968255154663702987943886204797897338759578958674908739584799403891768733597049195067309277116844392211671271304185528978255914327358412547027052204415164118012438739503928708894805209251211370130607073935714674503865693965120985501431650512268362395266591 . . . . . . . . . . . . . . . . . . . . [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) 889d4d20db774f01d987ed8436115aa8093658fb . . . . . . . . . . . . . . . . [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 (16 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.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) 00f00077005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016dc0fb37f00000040300483046022100fdf61397d2240346149d0515958fdd0c4a6f795675e1d32bf3fe91eed82767c2022100bb830be5305507df8ceacc20df1535b7834ee982eff816cbe5fbfea9e36dc912007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016dc0fb37df000004030046304402202ec3c398783d43ec32cd2395f913ed6e8c788aa9785794f3b9677c8f19dbfdcc02206aa68a940cf717931d158b1915a31628459f1c66df5fde2bcea36be42e36018a . . . . [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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