sandyliang.com

Issued by R3

About this certificate

This digital certificate with serial number 03:ef:9a:c5:8f:81:66:5f:29:fa:33:28:6a:b7:ae:6a:66:b3 was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. 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=sandyliang.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:ef:9a:c5:8f:81:66:5f:29:fa:33:28:6a:b7:ae:6a:66:b3
Serial Number (int): 342870070393853729916804245369371228792499
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 5d:c5:f9:9f:a5:d3:64:cd:63:d7:33:c4:91:6d:e0:cb:53:44:1e:5b
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 33:18:27:b4:87:8d:45:25:8b:86:0a:5b:78:db:fe:b0:8d:a1:be:08
Fingerprint (sha256): 0f:cf:6c:b9:1f:30:23:ee:78:b8:4c:4d:ff:66:7f:cc:88:3c:3d:db:78:7a:f9:ed:91:74:6d:3f:79:e7:47:fb

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

Revocation information

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

Check the revocation status for certificate sandyliang.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for sandyliang.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

sandyliang.com
www.sandyliang.com

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(limited to 100 certificates)
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Certificate

The complete raw certificate details for sandyliang.com in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIF/zCCBOegAwIBAgISA++axY+BZl8p+jMoareuamazMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yNDAyMjUwMTM0MDRaFw0yNDA1MjUwMTM0MDNaMBkxFzAVBgNVBAMT
DnNhbmR5bGlhbmcuY29tMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA
uwjiunkBkeHuNChDWn+ggB6efJKM2WTGXfyRmSYhvyV4vxQM73kgB68h4rm/qNAc
49N8UMZ/83IcL14wJU21hncyaCRBrwG40ObLJU2aX/o85ZOhjowFTw7942j4KXpb
DvxcuLz7pAYwLYiJuyTFpNIUFBZx7wj6CpYw2PtaUd1V8CN4PTgmZPKxL4slnNwi
+A0j7OnYoHhBQQVeetVo3UP6BDuYqwiKi1MQsHkWqPhi8PwOvsulkJ/JyorT3nZ0
WxvakVJtDAgaTl+GtRGTI2MEwG4WYJJoU3I4vs1eAPAZVDYLRU8qzQGfO3e67ElE
b5i6tIRippW2PUxOSsGaQfdDR1iMX8LvMQY2H+wk9B1lG5rx+om63YF+UZ98mN4E
cONdvBgEzet1MryVgk58JRBPDM+Fh7gEGLmJiDyrWKPgqVNc4YjJJCTPlF7A1X/d
yFim8aegdT5o7SsMY9dQZ6oORfR0B2Rq3AZp76FkXECzJU6mTGjpaFadHfF7nJH2
EfqhM4RJ+DNUENAT5z9gPhJuOQB4S7/oAVTfCZfdWJRD4XDUN6F3DLdXC8P/b/Ns
7u1buswhLcLhyiK8mHmX9zMCYx/orwpimRy6aprE2canUiPzP/UJ0X3X9NWOp96B
wX5BcxkOSiYmPX6CinDP0t9kIjjnivPjvU39f1SgeqUCAwEAAaOCAiYwggIiMA4G
A1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYD
VR0TAQH/BAIwADAdBgNVHQ4EFgQUXcX5n6XTZM1j1zPEkW3gy1NEHlswHwYDVR0j
BBgwFoAUFC6zF7dYVsuuUAlA5h+vnYsUwsYwVQYIKwYBBQUHAQEESTBHMCEGCCsG
AQUFBzABhhVodHRwOi8vcjMuby5sZW5jci5vcmcwIgYIKwYBBQUHMAKGFmh0dHA6
Ly9yMy5pLmxlbmNyLm9yZy8wLQYDVR0RBCYwJIIOc2FuZHlsaWFuZy5jb22CEnd3
dy5zYW5keWxpYW5nLmNvbTATBgNVHSAEDDAKMAgGBmeBDAECATCCAQYGCisGAQQB
1nkCBAIEgfcEgfQA8gB3AKLiv9Ye3i8vB6DWTm03p9xlQ7DGtS6i2reK+Jpt9RfY
AAABjd4cyOMAAAQDAEgwRgIhAIxDwnfTX6zbHa/XyU2GLTova05cbJTpKsA7+LBA
zIsLAiEAucxN5k6jLae0O4LuR2WnfDW7gvTbYQR3qO2knVXj90MAdwBIsONr2qZH
NA/lagL6nTDrHFIBy1bdLIHZu7+rOdiEcwAAAY3eHMrMAAAEAwBIMEYCIQDzbzPL
ZBUvqIOlv5oq+yfRjafDQyyTCmvtwX5P9z4xQAIhAN22SrUhreU1qpgrQXlbmkIt
caysCBWAOgJ73FewYjlAMA0GCSqGSIb3DQEBCwUAA4IBAQBstwh8rV5O/Dsk7da9
dNF+yEtfmqotHubUr8VVSkxLRreez0020rdN40rrdD0RfiurKht/kQG5aZNY6hZd
GLtvL6f8/MHwO0Dro1zH4fHTfV6uPZC4HLVkeer6xLl6u2W9T7SQ7m+Q0fzKrjE/
dXB7ykRhGVQP7EZQ++U9o3M/H44T+tZkyGGhDxuwpLw9Y66yzrjVLYuxrzzoaLOf
aEBehhk0jqlBl5l5LEPOWVXsPSfpBFpTF4IwrdJy4OyMzu1rKTzGuRuXPhzjxL+v
9vbwDwT0L82bExpcQXsErYcWfcqx2+jgiztVi+3CHo2fyjQq8f/hTMkniqPz73Ld
aBkm
-----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 342870070393853729916804245369371228792499
 . . . . . . . . [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 2024-02-25 01:34:04 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-25 01:34:03 +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 'sandyliang.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 763035043537447987319326631474969464896649544647725113240734445931690773793357237999918422942130134568869824040947210937547883560665286947778310591110296485866234083097114627233580708486740860576679066053877052217548300933394492396051958323816835624367679271151892536478945172621923934565388978922683355934818610982477971158457734113327850647230592356731447350473537962408425744921585824338639300323132744973279772774365452698463724840243012533671143276996838088552817393864479229115408502907517937932446898480519693744160113829753792051040653154173699376727336164670307198151538069047090956314352510919606490179470731327364493276310135323184604052254391119844187753575446634773739329522231488041139003727007264032975250960520159573372518964792791671944378412774875661774580730302280677077766621699056440697254018625340085552833666326993129475292949163538115938217191507497634238296560334921388471002309981813938050780631508003491179042675576416823473154779316097178765415305751798075608615871750778271891200646029278988519581629893712106430892332094113536149676385164845852077012587974566065634305985599955705955399561371401523044422587912538534749493360260693758846005308408491925276134862877825075703592595814511010836034451700389
 . . . . . . . . . . . . . . . . . . . . [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)
							5dc5f99fa5d364cd63d733c4916de0cb53441e5b
 . . . . . . . . . . . . . . . . [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 (38 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'sandyliang.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.sandyliang.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)
							00f2007700a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018dde1cc8e300000403004830460221008c43c277d35facdb1dafd7c94d862d3a2f6b4e5c6c94e92ac03bf8b040cc8b0b022100b9cc4de64ea32da7b43b82ee4765a77c35bb82f4db610477a8eda49d55e3f74300770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018dde1ccacc0000040300483046022100f36f33cb64152fa883a5bf9a2afb27d18da7c3432c930a6bedc17e4ff73e3140022100ddb64ab521ade535aa982b41795b9a422d71acac0815803a027bdc57b0623940
 . . . . [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)
		006cb7087cad5e4efc3b24edd6bd74d17ec84b5f9aaa2d1ee6d4afc5554a4c4b46b79ecf4d36d2b74de34aeb743d117e2bab2a1b7f9101b9699358ea165d18bb6f2fa7fcfcc1f03b40eba35cc7e1f1d37d5eae3d90b81cb56479eafac4b97abb65bd4fb490ee6f90d1fccaae313f75707bca446119540fec4650fbe53da3733f1f8e13fad664c861a10f1bb0a4bc3d63aeb2ceb8d52d8bb1af3ce868b39f68405e8619348ea9419799792c43ce5955ec3d27e9045a53178230add272e0ec8cceed6b293cc6b91b973e1ce3c4bfaff6f6f00f04f42fcd9b131a5c417b04ad87167dcab1dbe8e08b3b558bedc21e8d9fca342af1ffe14cc9278aa3f3ef72dd681926