flammable.jp

Issued by R3

About this certificate

This digital certificate with serial number 04:ad:93:56:06:f5:19:3a:1d:d6:c6:b5:e7:8a:49:6b:38:91 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=flammable.jp

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:ad:93:56:06:f5:19:3a:1d:d6:c6:b5:e7:8a:49:6b:38:91
Serial Number (int): 407513836398386722215910724725849073596561
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 5e:d1:13:41:48:7a:9f:a3:c4:4a:5e:1a:7e:e4:e6:33:3e:8a:b4:4a
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): e7:da:00:b5:97:ea:f0:60:71:95:f0:4a:bd:0c:8f:af:e7:71:9f:e9
Fingerprint (sha256): 4c:ee:78:fe:c2:63:a9:3e:c1:91:cb:10:88:56:ca:28:34:87:ab:61:d2:b1:3d:3a:2d:b9:db:16:c4:e5:59:07

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

Revocation information

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

Check the revocation status for certificate flammable.jp

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for flammable.jp

Public Key Algorithm

RSA

Key Size

2048

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

flammable.jp

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Certificate

The complete raw certificate details for flammable.jp in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtg91MF330ZuBvQkp32sf
b41tqHIQq+fAT0MP7JIs3vWCQXDQNJG2BCtNLXrHIgoFfFza5Fc4wPKRUpXjUzhQ
wMGgZuLpcr4Xak0/jsAoMTy3m7oxHiXd0ZqCi08AyPtMkvT8+su+375sRa2reFvn
R5EGbLmNiTvV9rRVk/oUjvf1L8rj362NUwPzyN1FVupLUhncjC4YLxA+T/SyezLQ
8SxN9V5CiIhAJhspCYYm48l93+RV9kVg8Bbatju3t1xHExAAWZzoDApMyS2ckNXC
rGK+vRRjx2EeWkdozu3aIja7RXgXcdU1ZfZDwLqKy403IVRI9anSYEgb/pIMUvPv
0wIDAQAB
-----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 407513836398386722215910724725849073596561
 . . . . . . . . [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 2023-08-15 15:55:09 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-11-13 15:55:08 +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 'flammable.jp'
 . . . . . . . . [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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 22982994013945933124907440614873227390216176816004626783300537899824640157256798216285872350983509875050256783506705342659267610043044615359843518604681975679778371739684653778572656085051105263153842747713483437436954729573952300410916905414878544796066981190797566103830889813405970918637748713453823991752981601815746828052891754630196804264554624383932715108001556904003191861284678024763328909450828849721770156895996502633154423490403400281515042004327542346684704872695941474813668810360519809006630006799874692431402243261682867666479104738634030720500037500929236660365553659046350441372710712033549097365459
 . . . . . . . . . . . . . . . . . . . . [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)
							5ed11341487a9fa3c44a5e1a7ee4e6333e8ab44a
 . . . . . . . . . . . . . . . . [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 (16 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'flammable.jp'
 . . . . . . . . . . . . . . . . [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)
							00f0007700b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb49900000189fa1f694c000004030048304602210088fa5bd3202115ae2ba3631c1c19ba47929ba1541e01c4d5fdd5ebda29a281d1022100891329b32673e62cd3602a21653b16f67545d3f36329179a970c3ed6d948110d0075007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb5200000189fa1f695c00000403004630440220228abd52c2519ac294be84f4f7e1205dd001bd925f7189f6ea40ec38b92554e502202816bc6ebb92733d9a56c4e6c0b0c25ebc64e11f9694c77b96b0b075eb671a4d
 . . . . [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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