hydrogendetection.com

Issued by R3

About this certificate

This digital certificate with serial number 03:89:9f:25:10:f1:67:a5:c6:b6:f8:73:8f:48:3e:9e:e7:13 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=hydrogendetection.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:89:9f:25:10:f1:67:a5:c6:b6:f8:73:8f:48:3e:9e:e7:13
Serial Number (int): 308167081773407495038308021615880648451859
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ab:89:fe:30:f9:9e:60:e9:90:ec:99:0c:a7:2a:19:71:30:78:c0:99
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): d9:4b:ea:eb:96:4b:ed:89:8d:19:01:e6:02:f1:be:a0:d0:0a:02:92
Fingerprint (sha256): 22:bd:b4:16:94:a5:65:75:52:33:f3:df:7a:10:30:62:d7:c2:d1:7a:28:09:4b:c7:5d:3a:7a:8a:0a:a4:fb:7b

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate hydrogendetection.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for hydrogendetection.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

hydrogendetection.com

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Certificate

The complete raw certificate details for hydrogendetection.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 308167081773407495038308021615880648451859
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-11-20 04:32:08 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-18 04:32:07 +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 'hydrogendetection.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 865934672647736341709558950415395379804505625341295840120030150690452417190522940165294754712474550828779877058143298515039703929460000345053442840354020037345466296171253308136524251890103362750412789796832632815019562469635347102559742634526172577689435554243380080038003788567805934026454367912365453863537938232174210835282099195937623172232953917952510522638981089182105922907246700981927704073729706687030465307667856264971879450785678785803131449271259855020810745827559532318587661278826586004758452671669831049764478528104974247002893892400869408181438475799800254890258184508282937531017597668428223020792772033200785129288939585892001459372767531858212154735671330520405886042596353746650135213878155369561114018960043753740910703837346005896092119331503852585693059589086976104071853481744206945884271114488553351514761259996009449032317171059979816092659000946062208306237357969177863470376369168328062445954425239914109402765596314406551029633349362095571701185063097556705959533070805850241040279285283434532397652377367998305742471104596409535099122303908503176321422739232258072531001138002713145748498286097981160238816322285512046834213550049737560038783114116449381073069741115562498029200409092200796009918774197
 . . . . . . . . . . . . . . . . . . . . [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)
							ab89fe30f99e60e990ec990ca72a19713078c099
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (25 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'hydrogendetection.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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018beb36f3b90000040300483046022100b63538836a042c245a6cb725625b2b328d6da9a5071a899b15e8c6e0a85de7090221008047228ebf01c5de02e65a78bdccee6378f3f6aad6f06e32096bbcd2b21ee1a7007500eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018beb36f3f70000040300463044022006c124e71f8846621be570ea8ec40fa8be12b9a04401655fa7d3e1e50ee4efc602203358b56fbe9c06586e5013869cf2882a6bde12d6a8949a43caf26b46f69d8238
 . . . . [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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