www.tseung.net

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:dc:f0:ac:7b:2e:0c:b7:45:6d:ef:82:69:a9:9a:39:3c:0f 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:dc:f0:ac:7b:2e:0c:b7:45:6d:ef:82:69:a9:9a:39:3c:0f
Serial Number (int): 423631174742080308454512740772673217969167
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 79:30:1d:d4:38:45:7d:08:07:19:89:e8:c4:dc:b8:b7:c4:33:24:78
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 3d:47:e8:af:27:72:c6:e3:35:51:4f:38:e8:ed:9f:c8:5a:70:b7:13
Fingerprint (sha256): 99:f2:b8:0c:71:68:b8:c2:1d:93:fb:41:5b:67:ae:4b:b7:1e:54:32:36:10:e5:6b:00:b9:7f:bf:34:e9:39:c9

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-----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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 423631174742080308454512740772673217969167
 . . . . . . . . [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 2020-02-06 06:54:52 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-06 06:54:52 +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 880524756605133333899609595103283325204717647917928741829700941080551684271154336218891618696453674259182674420960121163386962550124892255454770869973479187322416493802887780754625739323114257922303008447146906174404401709361879925318028747181395407200494033687572493790782553869664779710423284101994090103311297216458291017911201338665706031062720052904746285129871682345257825359554688822984438078190834770284562708219729358048338418427056587491378440702154938431455201394308192319046758996858432023800735725722040198666930262293729420036439802312949341047618430836883935087459000638705514424939345828734455884463734990790422909346464724722810002599596997124655018075193438071456947770123263664838090573370556749486858916444601092892783463837333474307728393603299090829458763408913410764713362702283324782351645259684361993267885571175872853042627498804665943972798561464591974550223771823631861326008382215994112284434518137679950994470236517855568832966758583847139009242454508560639846990877448888752230093350726132852146076723022438076753787507764927725400421293727277765147245592398106068565797882860158160653781902834139477295322756975148463013062814336944713594096920247702762154161442162267236685445971305738039533000105709
 . . . . . . . . . . . . . . . . . . . . [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)
							79301dd438457d08071989e8c4dcb8b7c4332478
 . . . . . . . . . . . . . . . . [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)
							00f1007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb27300000170197e9b71000004030047304502210094b5be82c749d7cce55ba88053f73b4ec9be1ac8863a7b613ba3427d8db275c70220768b88ed3247b87b59ac6714e6bc623b981cf527d65f162edff442ea29007594007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e00000170197e9b6f0000040300483046022100856ae029c902fed98ef37be197f742417d0c340119ab6887974773c18061e34f022100d8653d3c79d0ab34346b8874fce358b8ba07783e90247d48515befaf4bbf60f5
 . . . . [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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