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:11:64
Serial 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.org

Check 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-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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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