blue-topaz.com

Issued by R3

About this certificate

This digital certificate with serial number 04:78:35:f4:c7:0e:2d:69:a2:a0:59:95:80:9e:5d:70:21:80 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=blue-topaz.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:78:35:f4:c7:0e:2d:69:a2:a0:59:95:80:9e:5d:70:21:80
Serial Number (int): 389354747799086445173822253756945221558656
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 92:e2:64:ff:a3:60:b8:63:c9:e1:98:2b:31:72:c0:2d:1f:24:9d:9b
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): f6:d0:04:3a:9e:5d:5c:74:5d:25:ce:05:a1:b1:d9:f2:1e:92:71:fc
Fingerprint (sha256): 7a:75:50:4d:5b:ca:38:3b:68:6e:62:64:04:41:ce:3c:02:ee:7c:9c:ce:a5:23:7a:02:75:df:65:54:37:4c:3a

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

Revocation information

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

Check the revocation status for certificate blue-topaz.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for blue-topaz.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

blue-topaz.com

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Certificate

The complete raw certificate details for blue-topaz.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 389354747799086445173822253756945221558656
 . . . . . . . . [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 2024-01-19 13:03:16 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-18 13:03:15 +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 'blue-topaz.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 764544516909617533742156163847405874978892786393869256004311646592531639979980799351930659733084990479922339684948358350673067872197029700855210727344036453422485083607746727650782715469861430846976483469706981786390910088265370482256701769840102797257127760828794344762801223763508821770158872426792182661475976486105114482658806482027535950330904304542188090885098154426618109521919019274275338476460515267225902809440161283353358449520507861263965623131869273562974910469776143152035669444177329097344932876664567472879541091601739288924123042683918400730773959478681626674044611059730070752353167447114116928348922936872497510875635887946209386563845745251930208560826047131361451225355154347153668872556201791706398809007707076074552131950361675597749981356659242349978606212662204810109897150938525799641204463989292171521576001057479859569076803456566811093352171809380137762196696711623670548510764640734061373103244149976184473415788863684435935088700462647897443663202112485047359727734256866959596412490213473143445714156512974317515220034363048092981716917800569769526853340098873793651782755198964524231801242677543017344150043954672352991475337098346791262386638522406855110840681431045625303843538492489084442652632409
 . . . . . . . . . . . . . . . . . . . . [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)
							92e264ffa360b863c9e1982b3172c02d1f249d9b
 . . . . . . . . . . . . . . . . [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 (18 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'blue-topaz.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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f20077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018d220877c90000040300483046022100928dd52040ee2859f1a8963f6e1127497adc471376208e0d85945d4866eb8ca70221008b0353d2aaf04efe958133a53c95fa01e9b79fc1dcad28f817766e6308889dec007700a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018d220877f20000040300483046022100dc0462b57636fe19a22b792172b15f4c0a9b2bc18915af91e7dc076c2aeb1cdf022100ef6883cb3fab1d02f919d7a9104cab27c2bca0f524036b50a7eec8c9ab7e7f86
 . . . . [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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