qingqi.dev

Issued by R3

About this certificate

This digital certificate with serial number 03:fe:42:f1:e7:24:83:14:26:0b:e1:41:2e:4a:40:7c:b3:a1 was issued on by Let's Encrypt.

This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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=qingqi.dev

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 03:fe:42:f1:e7:24:83:14:26:0b:e1:41:2e:4a:40:7c:b3:a1
Serial Number (int): 347857564072593220189160420331915814155169
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: e1:93:2e:42:5e:73:1c:3c:dd:f1:4e:9a:5e:ac:ab:0a:6a:0a:ea:10
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 04:12:f6:3f:f6:e4:b6:7f:b6:ab:bb:94:6c:05:b1:a7:7c:77:36:eb
Fingerprint (sha256): d4:2b:aa:21:a6:4e:97:f4:7a:06:74:08:89:ad:0e:ae:37:30:15:0f:a9:f4:dd:b7:cb:56:8b:e9:91:f8:32:d0

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

Revocation information

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

Check the revocation status for certificate qingqi.dev

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for qingqi.dev

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

qingqi.dev

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Certificate

The complete raw certificate details for qingqi.dev in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv6RDBdQw5w7yk98Gxz+K
z2PnIEnRr0XIbItyDeVyZr2OpIh+AhaJwLuGPTxGYvtDvHuJeUHrH7mS3pFQX+8a
FMcfzPBMp29oGa8ZBqqIfpsuat3rZxFK3QWB46zHJwLBuQVtkjizV49g2fwX29Dq
wkbxrggfHmihs9RT3x6l06VbKKFAbPtZTtWRlso8iZpHvC48iPuqAbbnrSFLLCOI
+xgEEQld1nzUd47MkqKjhC4Iu6UlirmTqdarDAje1/eYzaD8TLgy251BWU5bR/er
uRjiGkkVbjEfy09x6QwInXeLcLxVDuEZeicBtUPztk4CnI/eBtI4T/VVt6VPfmqF
KwIDAQAB
-----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 347857564072593220189160420331915814155169
 . . . . . . . . [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 2024-05-21 07:28:01 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-08-19 07:28:00 +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 'qingqi.dev'
 . . . . . . . . [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 24192516764820469015204972351371754722554363716469039131497347192668659099399019092312653725405749645139112478352143521886628184119324387376563379649297552690650573874505520637048594662786432115090860900867048026640753117162523319336015152915977029096823705380117605658631182002469234780385954824878110268723769980325574776469186471851257272785480807615440598296298533920979053149708397652973111245204274112732323339303248922398380747576848383869789562499359507366988342019102056079555976422742727136604162671778115101415872852392526671425777779358218290416740286672301751789811946068049129105688911928637566470489387
 . . . . . . . . . . . . . . . . . . . . [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)
							e1932e425e731c3cddf14e9a5eacab0a6a0aea10
 . . . . . . . . . . . . . . . . [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 (14 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'qingqi.dev'
 . . . . . . . . . . . . . . . . [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)
							00f00076003f174b4fd7224758941d651c84be0d12ed90377f1f856aebc1bf2885ecf8646e0000018f9a43bf320000040300473045022100cff6332a6006ccd5a19fb60e7659dd8be13342f9248ff373a70372eb1259330f02207dc45e8e608f3942d03412bcfc808f029ee792446648fa781e6031ae332e33b3007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018f9a43bf2e0000040300473045022041b110d2ad9fb419071219e0da2b1fd373a241b0d13daa8b9c3b9ba069439372022100e56cc65cbd60286e116a4e2bbffadfbf65310817ec496d355359001298435e98
 . . . . [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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