www.tseung.net

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:3e:d0:ce:ac:23:e7:85:36:88:0b:2c:74:9c:c7:64:df:f2 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): 03:3e:d0:ce:ac:23:e7:85:36:88:0b:2c:74:9c:c7:64:df:f2
Serial Number (int): 282711917072074134948663049926042108354546
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 3e:21:01:0d:39:30:18:59:30:73:f7:b5:c3:ba:b2:b3:3e:7c:5c:eb
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 91:a6:e2:39:87:c9:0b:23:02:1e:cc:e4:80:ba:67:d1:ff:e8:8a:da
Fingerprint (sha256): d6:0f:54:2f:ca:16:05:ac:e1:2d:60:85:57:88:7e:58:81:c2:20:9b:2d:53:97:fb:43:a1:87:0c:d7:3f:55:a3

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)
tseung.net
tseung.net
www.123pi.net
www.tseung.net
tseung.net
www.tseung.net
tseung.net
www.tseung.net
www.tseung.net

Certificate

The complete raw certificate details for www.tseung.net in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIGVTCCBT2gAwIBAgISAz7Qzqwj54U2iAssdJzHZN/yMA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEyMDYyMDA4NDRaFw0y
MDAzMDUyMDA4NDRaMBkxFzAVBgNVBAMTDnd3dy50c2V1bmcubmV0MIICIjANBgkq
hkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA0b8Rco8k5r5eVIqsGyXVbbnLBSzGbhEu
43StsIvIlsACPDUn7vQCmN/naysp2Yp3OxzXvNrrvZmmYpJndjDqKIkrv/G8IG9f
qwrTlMU6uCW6392QGvZXXaIseQ9vop/Q/jxB3OqPc3e50PwjSzm1LKWUgVD2wvaH
xehf4sp7rDVW0RdcmwHQfkt3vUnnyLn1pNMkWosYFiHguvVNGt0vksla8sNQye3m
PidNcXwiwg63UCB/xPYVV3u/P8eqKqcjz3zRjeLof/bC9T5ZpFcv5SbRMOttWuGT
eSHwuNH+tmqCjzjcwLs+EE4vKEY86PD5vLbSALXoocaMw0kwWWzbzElR+y2q0+Hm
pAv8qABqCMqqdoABC5j01vDE0BRsgok6ubK8+0X3jC7Dj2HwOQTJZKHH6whpf++J
FYctT6v26V//iAteL5PgRBkXW6wYScasnB1arGSlyCIARDsKSzzGwz+wnRmo0iYn
5mGldtMbsVeKD1fP6awszjPEAsk4d0FZ4JTGwI6gBiySxc3yB2CuGtC//P1b43g+
cHR3bWo0BIgJDSm1Oxun6BZ6SfhPRjGvAlZ27sAxs/hyYyHnhTYVDQR+1ZvB23B7
QLJyfPP/iiG09NBCet1+cYPvgfpTwclso7Z9V2LaIwW1Sox4BFadqXXRm8z/6C0f
TjI311Vn2ocCAwEAAaOCAmQwggJgMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAU
BggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUPiEB
DTkwGFkwc/e1w7qysz58XOswHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo
7KEwbwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQt
eDMubGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQt
eDMubGV0c2VuY3J5cHQub3JnLzAZBgNVHREEEjAQgg53d3cudHNldW5nLm5ldDBM
BgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIB
FhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQUGCisGAQQB1nkCBAIEgfYE
gfMA8QB3APCVpFnyANGCQBAtL5OIjq1L/h1H45nh0DSmsKiqjrJzAAABbt0LISMA
AAQDAEgwRgIhAP3XIQzZjHe3qQYpubgddV3AJ2huJvOK+YQjO1gdi6dEAiEAxGAh
h5aGlSDFmW9MrrNkwSVaMJ4s/66NJRNXQLAnlqUAdgAHt1wb5X1o//Gwxh0jFce6
5ld8V5S3au68YToaadOiHAAAAW7dCyFMAAAEAwBHMEUCIQDErZj0nJ9Cxa9ujJsy
BZCT8USqU044733hz1S1pM9WfAIgXlJvdXWpkrdvuLV3NggtGj6+TrShYPRcwwAX
s+/g33YwDQYJKoZIhvcNAQELBQADggEBAFtyxnqYd6MSVJZxlccGqyR+KvsixPj6
h3Ifo1DhzOdMwOLYTJbJQPT+eN7UtGZ1IlAdE2wWzI8ylhp3qGt1iKjAwQ90S1HB
5MzZMmQn+/c7kKRjTgdZkwSynrCCtLDbkHxBmsBJexVXRkLII3ATqNgWlyssPeds
3pSaaMPsgVxJ2gSNUd2EDSp+Ij/uPKGKEktupOFPWopLCy1cL/+akvnLoybzPDzH
pL1LgvtwrL8AWkOm6ny5NCrpewzNvv79aFW/j8TwD7apjV4JTKzYWqn2uxwEql6a
DQ49PD6AkSNHiuuRDxYkF4Eie+40rz1iU3Enr2TRDPbXW/6cOvKmExg=
-----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 282711917072074134948663049926042108354546
 . . . . . . . . [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 2019-12-06 20:08:44 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-05 20:08:44 +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 855690493271723382809994434593072237475308826183750061386420600004376417143427235625130015048608285404887704857722611475552989358280902544770378154733287897681293766824789022447390779579328823566480091533057386443727047669676343401297749081890742763738272361457298454074133368588801490307628419585838893558141558829843249755719205028099663994343262377441464829840016019712179417175311018733607068972692027792689779853945603876252569912521409697958300349186256549537725842682212208501922209841476828182996408074708281059862249123941169376831597248675692373624601641618518107167128528906317862894207874372678943918460550822206094059871387023584799603077073302633715640716600539976103259774805187479992804992002471986982566950206944871507962643483282221520136984886933026543207574133829485853259133601624320321899037787980026367377871131313206040670721942132865560285398702542067019774416787590996093895522981464642034400478465930355582982129711136435188414769962248193179951605618397158358442766896010640889798870655916533268306410797890270127106413432659625643753558596475219418951455938209462630486305546084708547428085095224472223481775809580579226340552958107402289372776488840009542331939980152141739118067000720095685084117981831
 . . . . . . . . . . . . . . . . . . . . [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)
							3e21010d393018593073f7b5c3bab2b33e7c5ceb
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007700f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016edd0b21230000040300483046022100fdd7210cd98c77b7a90629b9b81d755dc027686e26f38af984233b581d8ba744022100c460218796869520c5996f4caeb364c1255a309e2cffae8d25135740b02796a500760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016edd0b214c0000040300473045022100c4ad98f49c9f42c5af6e8c9b32059093f144aa534e38ef7de1cf54b5a4cf567c02205e526f7575a992b76fb8b57736082d1a3ebe4eb4a160f45cc30017b3efe0df76
 . . . . [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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