www.tchemicals.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:66:81:55:cd:ad:68:f8:e1:9f:31:73:89:76:fa:8a:19:2b 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.tchemicals.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:66:81:55:cd:ad:68:f8:e1:9f:31:73:89:76:fa:8a:19:2b
Serial Number (int): 296217575149538621004742830592919088011563
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: b2:87:6d:86:1c:88:94:4b:71:7d:8f:df:a8:8f:95:3e:61:24:cb:18
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 99:49:d7:f7:ed:39:9e:84:96:96:46:ef:e4:4c:8e:0c:73:36:d5:e2
Fingerprint (sha256): f8:60:68:14:c7:13:ca:29:4c:1a:e6:dd:31:c0:ed:27:b7:c9:67:97:25:cf:b8:1c:fc:d5:1e:a3:6a:07:66:d4

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.tchemicals.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.tchemicals.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.tchemicals.com

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www.tchemicals.com
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tchemicals.com
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www.tchemicals.com
tchemicals.com

Certificate

The complete raw certificate details for www.tchemicals.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 296217575149538621004742830592919088011563
 . . . . . . . . [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 2020-02-16 15:53:39 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-16 15:53:39 +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.tchemicals.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 730246153650412080023251139855621283187086272742734518333431834541565308849802133021650023147804078303310345239334848154823922284261518150999438210762297721601090484300015323795106078953188100869079404028759930929806296545340185367800209887978262485453369436501242431361163271531363848036934296771446146243103135310160226076013363910256423831972216519290268722820090604166115119998188775976534557137007045716765408300659211261010497952741953362132961291668791480822054757604323911331602040871210275608357328648477788417544756734352189797122694545331681225120240560301127606349798057969558148306852313262273400006076677099863314726200477763104757104557769336267513400197746865569966851107847641066049381425773121707232143798444181509922032528163271942293216268716283478615609999686379115071776388736976328497849600874497060822758936011034078112415405999312216046852802203476797752075778695014872917656443936919931376133312026022038527628899031638874224610825158141224111890187410186204498634180036731077769470647135729904683556179428725991308186579534213001501990157273959482869936451609238580029571626533902785657492393014540510417001672389870906248289055803887588023278130497672466866489816418470752914347869085061438637435217347461
 . . . . . . . . . . . . . . . . . . . . [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)
							b2876d861c88944b717d8fdfa88f953e6124cb18
 . . . . . . . . . . . . . . . . [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 (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.tchemicals.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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f2007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e000001704eeb78af0000040300483046022100e45076ba916214cbc6fe585bf9e90098645dfa153db68a25e80ac502f3d04fda022100f1a459870c5b37dce16d8cb4522a413b636700b1ce5ea6927a62b99038c2fabd0077006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d913000001704eeb79c00000040300483046022100fa0301f9759c0ca6ab96a3c89de54a9f44fa1ab3228105c2a418c3d0a226c512022100bf6d8b7deea0b823ef6a467573b940248e008f77894bdad98ad1fb97ab33a7ad
 . . . . [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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