www.tseung.net

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:9d:67:f0:40:02:a7:f4:ea:eb:c5:be:c3:11:e9:ce:e4:69 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=www.tseung.net

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:9d:67:f0:40:02:a7:f4:ea:eb:c5:be:c3:11:e9:ce:e4:69
Serial Number (int): 402011633266724871086443928116624458966121
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 70:29:6d:7a:0b:fe:41:0d:d0:df:4e:04:52:9e:01:69:ad:51:1a:8a
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 7b:0f:08:74:ae:9f:5d:7a:00:8a:26:3d:b3:09:c3:d6:03:7b:f4:ea
Fingerprint (sha256): dc:3b:85:04:b4:20:e0:ad:e5:1c:33:42:7a:1d:bf:c9:58:1e:3f:49:ac:fc:1a:ad:8e:eb:36:d2:7f:12:b8:e4

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate www.tseung.net

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.tseung.net

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

www.tseung.net

Other certificates including the domain name tseung.net

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.tseung.net 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 402011633266724871086443928116624458966121
 . . . . . . . . [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 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-10-06 02:44:12 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-04 02:44:12 +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 'www.tseung.net'
 . . . . . . . . [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 699877949952863556759957308237994098940426880951401550068581412482873530619482358116271310041966336671522295756689443762173203094931487785298856251283733300520401265841228205686710483087087756112468975334923165504646315346139811568380908812574484451632419392642694721073697396887248911469514637332582061987804556398807038938560250036908103152539449997376248535867015326126471879102533662907005912155746329464712024689868823175898761964092214505819987224653697514497525028340050701076227787962025496528848859201249183997074317356997793789167134662036398453939125405919726454696080380946362319976203577739319147014663281713499467485561968589783397875906346073644905784048130355012892839713090306202504740842021039733794304560209225988452854968151465927375090215235778986064932276239055215745222014601524642720903099907480286051654718547232084644924537201057591503118386063483204722291656168692052639221653556613161290278553856047922859691528382913143638098469014023102252686777705012994061050356737362069164864565905689844240109943942994242626005148035429444783178983858968208678890678062739585342872316804225413850783200749881565783050395828376192289824010518820934727368199016539997415732186703149809059078926016126284573648279491731
 . . . . . . . . . . . . . . . . . . . . [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)
							70296d7a0bfe410dd0df4e04529e0169ad511a8a
 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 'www.tseung.net'
 . . . . . . . . . . . . . . . . [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 (69 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 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . [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)
							00f00076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016d9f2aeaf50000040300473045022100b29b0bbaa23ec630c373eb758d2edd9c4c8d969c24c34fe9971e062dc003921f02200201049712db342f6fb4cd4387b61b6c8b42fe08de853a951470afe0e8fe1584007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016d9f2aece00000040300473045022009f63834a02321b963f6a3bc62aeabfe6a1dcc93596706379f0149a2b0cdec47022100f3b62ad2d65ac8e9b036ee5ece6bd49cff531a06949dd8cdf9e6a25885ce2018
 . . . . [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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