tk.zstbio.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:11:e1:4c:ac:64:34:a8:9a:d1:26:8e:f7:78:ea:56:57:72 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:e1:4c:ac:64:34:a8:9a:d1:26:8e:f7:78:ea:56:57:72
Serial Number (int): 267421132443063113667716929923228292765554
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: f2:b8:c3:8d:8b:be:37:f6:25:c7:2d:ec:fa:ac:36:9c:f7:ca:78:78
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): a4:f6:ba:ef:33:b0:46:8f:78:c3:ad:ef:06:1f:c4:1f:f9:65:d5:b0
Fingerprint (sha256): 33:c9:03:31:a5:a4:53:08:c6:d8:39:87:2f:bc:54:40:16:38:0f:c9:5e:9c:9c:74:60:c2:73:8b:53:54:94:ae

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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saiseido.cn
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nbc.zstbio.com
zstbio.com
zstbio.com
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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tk.zstbio.com
nbc.zstbio.com
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nbc.zstbio.com
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www.sumire-corp.com
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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArTQ31SAUwlQGM3vK/5q0
ZGoG8/Mc6aYm64PxQ7hX1ctqYafEE1L/r+mN34e0zy69Tu66br3gCXxoVERmdj6G
GXZywogCe9sT+cbDU5869XImbkYH6HLdJGkKh8VvbjRsm6jgwsTb9aB9C9y4Err2
20finiUwAXJrj2/ziL7ze3dAaU83h+V1M0a9/x/y2o2ual0grxj67IDO2VBPnr7t
bfzm3aJ3OhTjXhQu8mpabWuUil+jmn5piJqgfCFvHHMl6b+LFcBbi5BbUxxpdH7f
htF7H3Fs2pCCEyVZTG426AoSz2zK58RwDt2SvaSslJeyhK2M9VH5jZfeqjo+U/p8
MQIDAQAB
-----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 267421132443063113667716929923228292765554
 . . . . . . . . [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 2018-11-25 16:30:09 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-02-23 16:30:09 +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 21864976461863920174948863670674035554957544009756058006490664691747688505050193539935901484499105648001753476529537076202176426766389190993051776729396480650195543625037336239957807440504627272401849984439663333674617719193413052913837726076798170504749671114366608841268126515974695898369042967910388395082605514728192106088309157079721927319445434598059387609410101975591624587479845427643311728602728222374487226994229662306362024766055981230712155683042156283093893700226939420340264208254536681405541722894552982274029922554244643048575210979072751470859259375219110234788934272145432398877996820180171981749297
 . . . . . . . . . . . . . . . . . . . . [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)
							f2b8c38d8bbe37f625c72decfaac369cf7ca7878
 . . . . . . . . . . . . . . . . [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)
							00ef0075005581d4c2169036014aea0b9b573c53f0c0e43878702508172fa3aa1d0713d30c000001674bebe61100000403004630440220481481ebca9f154cdad78bd7af8cd7949a2ce060e90bccc02c316565262c44fc022071ef2ef8615318f0eadfaf110c1e2015687749ad3f73f7c098b75954d6a6318a007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f478000001674bebe4660000040300473045022100fa5b77eaded645a45b4d448a511b7845230365f9fad11097026d5365a5837c860220752169d60b6d926a136acc3aa1880f3f0d64e62d1754ebf6254395e9a6cd186c
 . . . . [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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