tk.zstbio.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:11:f7:ee:29:bd:4a:a0:61:03:44:e6:f0:6e:9c:d3:d4:2b was issued on by Let's Encrypt.

With 5 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=tk.zstbio.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:11:f7:ee:29:bd:4a:a0:61:03:44:e6:f0:6e:9c:d3:d4:2b
Serial Number (int): 267451213961123911570234116489298146743339
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 9d:85:99:35:9d:ef:db:1d:88:35:17:d5:c8:73:ca:62:fc:4d:a1:b3
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): a4:8e:75:da:ba:d7:7b:10:6f:4c:fd:a6:1f:cc:ca:24:65:25:df:c7
Fingerprint (sha256): 35:9c:25:d1:c8:bb:39:82:05:4b:28:ae:41:44:fb:30:ca:ff:0f:08:70:50:24:ec:75:c2:01:44:23:73:fa:5e

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 tk.zstbio.com

5

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for tk.zstbio.com

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

a.kinten.net
binoitari.jp
kinten.net
ssdbio.com
tk.zstbio.com

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h.zstbio.com
saiseido.cn
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nbc.zstbio.com
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saiseido.cn
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tk.zstbio.com
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tk.zstbio.com
zstbio.com
nbc.zstbio.com
tk.zstbio.com
saiseido.cn
nbc.zstbio.com
saiseido.cn
zstbio.com
nbc.zstbio.com
saiseido.cn
nbc.zstbio.com
nbc.zstbio.com
tk.zstbio.com
nbc.zstbio.com
nbc.zstbio.com
nbc.zstbio.com
tk.zstbio.com
zstbio.com
zstbio.com
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nbc.zstbio.com
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zstbio.com
zstbio.com
zstbio.com
zstbio.com
tk.zstbio.com
zstbio.com
h.zstbio.com
tk.zstbio.com
zstbio.com
zstbio.com
tk.zstbio.com
h.zstbio.com
zstbio.com
tk.zstbio.com
tk.zstbio.com
kinten.net
saiseido.cn
zstbio.com

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA14dYhIKyWcrF7rqVhCAC
2jMOQ7pK+jlBA9OPY+c+Wh3S/h7WVhD5HiRq1gkFDf2iwlad/4rIFmXZLeDcsKbD
2FbFmh9zI8c3K0HHaK7EdPngD7ML0ffP+WRCooCq1C38hudskgexl3uPuJC2JHaK
eaH7RPL9qoNnxNLv/OyvJFQlsivQTu0X5mmO5UoO/SdGDro5nw8D69zHSVX8jhVx
s1HgiDLyfSaTrqfQCZzSGw82M0Lew8FwMclVEX4rfhED//K2m9sTxDyNUMZMDAda
9gf9R+mwsS4TPcGb3pGrcHpYdyCuXXQwgXkWjSWcPs6u4G98B56s2OUPkLth1Vp0
xQIDAQAB
-----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 267451213961123911570234116489298146743339
 . . . . . . . . [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 2019-01-27 16:30:30 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-04-27 16:30:30 +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 'tk.zstbio.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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 27207977055340599003638290157440475815563343183739400574895946261782971827250791690042611357084951960165318491791019621497224619277882049407711095438200209154584736281248347642602345694365226018384587598053591691832053648677506231960394248582504079655049294826404134306308202048095880868741460927830433022694815429346882632053943105863512433443131273564162243710707750808520766965783965321178901894569860279733789761794658351728188835954186805107438887352913485872943186192870109828918753294764955799627649851443442156524061357584095997305390448572630926072216240246897562356802756913952570765182568898312387943888069
 . . . . . . . . . . . . . . . . . . . . [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)
							9d8599359defdb1d883517d5c873ca62fc4da1b3
 . . . . . . . . . . . . . . . . [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 (69 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'a.kinten.net'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'binoitari.jp'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'kinten.net'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ssdbio.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'tk.zstbio.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 (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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007500747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc5600000168905cd8bf00000403004630440220072e360cd14079199518f85aba119f5ff66bb166afd587dcd941a083008eea09022004e5ccf26b697bb6d4fd4282ba0e3ae74b8dd4e0e7be84fbf2a52df8f047287d007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000168905cdb100000040300473045022100c71e838e533d228b561905f763d2c89ec9ff6d7a37766e16467aa968a0b74f5c02203603a9ea73fdb5f6d29fb77828cc695ae1ce5b76007b1ca30defd60c49b0e67b
 . . . . [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)
		00765537935f1494466c781e57a66a8acc322574f169d3f065f8ef50f20932573bc3a722a0be282541e8f2551aa724e4181a4a1aa03eb3d5a4c8374b9313312cb8b3066f9fdd5ae47b0c864c782f5f3977da3103d02abe23a1075c26174b6950121e2e1b41da88ef983fed3d6125d81a55c6424138c37dfcf08a843d50522724d24a4b33b0d034e482eebc048b11c4c5333160f191a2eb736cd47a7de7afe976353fa87324ddd3a8272f66518c50ec8334e3cf1da4884333c9b199a43bffd0d9b8b15a54c070bc358185a2a293b0092d1e8f1f87a49f5a58cfc3c15724e4dc202f5611ca13a414ec858ee9744ea05a53200aef3cf89ad14f4e6a19154fb7e9c892