titaniumtransitcase.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:26:d5:da:02:9a:62:28:6e:fe:1e:e4:43:75:1c:ff:29:f7 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=titaniumtransitcase.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:26:d5:da:02:9a:62:28:6e:fe:1e:e4:43:75:1c:ff:29:f7
Serial Number (int): 361664131206650330518098700972448915859959
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 1d:e3:7b:ee:31:84:11:a6:2c:33:62:0b:d6:4a:4d:69:7d:88:9b:15
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): ba:e7:01:66:70:37:77:52:dd:94:6f:e6:20:89:0e:0e:90:7e:51:58
Fingerprint (sha256): 45:0d:af:1a:bd:f6:25:4d:04:29:1e:0d:74:2b:92:fd:58:05:f5:a2:e8:9b:e6:68:6d:1d:d3:59:5f:a3:59:4d

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 titaniumtransitcase.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for titaniumtransitcase.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

titaniumtransitcase.com

Other certificates including the domain name titaniumtransitcase.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for titaniumtransitcase.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 361664131206650330518098700972448915859959
 . . . . . . . . [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 2020-03-13 08:16:15 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-11 08:16:15 +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 'titaniumtransitcase.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 932445489850642129787284828974347646545738963850284606739278970056616161687586844111415549585099209263524270357375394851202237872316916700101122522778102826509982117105552675972031536855223155063119623676786739515115022610946169705512603553861809329675038882685649574443798462032820975661329708888614999089059352459191724961194766925081173422513843169704858548247520545853553736967032172912429576264672098502403038223714383439941571759243329364481525873505212868487206449606160724939688933946981753937120121430341055258341168250059341281367848226830989647194458519342920234043862657264612999815271544418799720551108251649690532819506120439511305719151093106093234792160056645742961551334212567888482647053821489033082165943446517480543580823099417904894854928204807558141929977842473978785014230501238672874065252677586451975627900674012202741619657142812377105146360541732771298428205105042891179589429712982062800607644250971157192705382144709004777026416059499851919873907393300637444043300991899190652555999550545175471508097423570610321375896189175874179991595304948949762309680835192176492752570633407846247442318251223102968814623621514205061499429279845658636735197579259175092763577559611114546579897673098085994678271429993
 . . . . . . . . . . . . . . . . . . . . [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)
							1de37bee318411a62c33620bd64a4d697d889b15
 . . . . . . . . . . . . . . . . [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 (27 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'titaniumtransitcase.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)
							00ef0075006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d91300000170d32e0f200000040300463044022008419450d41c2c55482dc872d2b4d40142b76e5c0da36f98545f61b6a2f9ec62022066b574bbbecb7db58c2f6823520bb0aa92bccf2844e4ea0af76ac2c09fb4d5ae00760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c00000170d32e0f2d000004030047304502210086d82c14dcfdc34ef9c4e5981aa3289bf070dbe217482c32d69d44011329b0b30220683afad966f78eb814f36ff706bb6f60648d93ad1bf3ea5ddc8ed2f1a7bd78d3
 . . . . [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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