zstbio.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:36:dd:62:b6:c0:08:42:dd:23:79:f9:0d:8d:11:09:3b:2f was issued on by Let's Encrypt.

With 8 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=zstbio.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:36:dd:62:b6:c0:08:42:dd:23:79:f9:0d:8d:11:09:3b:2f
Serial Number (int): 280006377547784931568736117788129935047471
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: a8:24:7c:0e:cf:58:98:3b:6e:dc:2f:2f:8f:92:51:fd:80:bc:bd:f3
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 7c:85:b0:14:1d:e7:e4:ac:2b:58:5e:3b:e9:8b:ea:9c:0d:53:51:e8
Fingerprint (sha256): 87:4d:68:10:ee:d9:1f:3b:e7:bb:52:8d:02:52:28:dc:b1:ad:70:4e:6c:c9:ba:5d:0b:e5:c6:7c:0b:c2:41:2e

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 zstbio.com

8

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for 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
sumire-corp.com
sumire.hk
v2.kinten.net
v2k.zaishengtang.com
www.sumire-corp.com
www.sumire.hk
zstbio.com

Other certificates including the domain name zstbio.com

(limited to 100 certificates)

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArO9tulqdZHj6KHwzFM+r
raEuBZnq8lwrLT/jH9ZiStj4Y/9N/fjK1BLvSTxowZRf41hpfE5JfhSQQGLqSimu
dxQcM3Rmj0OwNTKOBfAWCCJunJLmIxrNEXMfnuXdfjN8KUelMuIkE27h+OshWVE0
v3wwge3DD4gXrvLT/mfkKIOyzTXNXh6dRF2vbijBFcfy87sXcCImsNRLD2uZd8VW
cNAYlJMZqtI2k0OtRlKEgPVS2jOBDYO53mnI4bzbHaMJY3/6bL/GC3DCSGzxPUjx
XiAjpydt4e/cpgjFAOhHzcKvm6JC64lFrEMlCyl7vwUBJWyRDCezru5oFW4rO9nT
+QIDAQAB
-----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 280006377547784931568736117788129935047471
 . . . . . . . . [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 2020-01-24 22:25:51 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-23 22:25:51 +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 '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 21831055109448479748041625829158760072942995154049191050578155458451057600868179163681108206210108962473601715801878381209284676431617088210151708534353736590429080802640272804239358867421503553144485994588964008194509151101363904432353011728814637601155315226776590121146624503609502453583928178501773721345725801486468996994542797108740881804248289090754410996476397098132111869078976362214996688133805658730541947219893202242700680475956971679602119555559089532545143260276076512533167370740419383300873290469586411744858429265568585450298094572106335493167094479610224335737876636393629090134716197386782636626937
 . . . . . . . . . . . . . . . . . . . . [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)
							a8247c0ecf58983b6edc2f2f8f9251fd80bcbdf3
 . . . . . . . . . . . . . . . . [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 (129 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'a.kinten.net'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'sumire-corp.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'sumire.hk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'v2.kinten.net'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'v2k.zaishengtang.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.sumire-corp.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.sumire.hk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016fd9e047930000040300473045022100d61bd9ad2d0b54806f5d5b6eab50eca9bc4a9cc6b6277f17298c6a551360b00d02201165bb4b375c46d8f320a3f3e3ec950ca970dd228d31ebf6bb3b4bf895d7e1f2007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016fd9e0477f0000040300473045022004239df173ce635262b12dd6e205beb216c73709bad68f226a240f7db75e0645022100d2ea9d9e8c03225b88809cfe43c47993b4b8bae3f721900f691cc93685ed898f
 . . . . [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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