zstbio.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:00:26:e8:b8:68:50:e1:0d:1a:74:97:81:fd:71:12:3c:8c 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=zstbio.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:00:26:e8:b8:68:50:e1:0d:1a:74:97:81:fd:71:12:3c:8cSerial Number (int): 261388576812219873667416613213899360189580
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 78:7b:92:69:3c:aa:6a:55:e9:31:e9:88:cb:b5:86:6b:fc:e6:90:84
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 90:ae:98:33:e9:7c:f6:0f:8c:d6:c2:31:15:4c:4b:7b:78:ac:4a:dd
Fingerprint (sha256): 40:94:ee:ee:ed:85:23:01:10:dd:9d:4e:1a:36:d7:e2:6a:78:75:07:f3:56:64:91:d5:ed:5a:e0:53:9a:d7:5b
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate zstbio.com
5
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
8 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
sumire-corp.com
sumire.hk
www.sumire-corp.com
www.sumire.hk
zstbio.com
sumire.hk
www.sumire-corp.com
www.sumire.hk
zstbio.com
Other certificates including the domain name zstbio.com
(limited to 100 certificates)
h.zstbio.com
sz.zstbio.com
h.zstbio.com
saiseido.cn
zstbio.com
zstbio.com
saiseido.cn
zstbio.com
zstbio.com
nbc.zstbio.com
zstbio.com
zstbio.com
saiseido.cn
zstbio.com
tk.zstbio.com
zstbio.com
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
zstbio.com
tk.zstbio.com
nbc.zstbio.com
zstbio.com
nbc.zstbio.com
tk.zstbio.com
zstbio.com
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
sz.zstbio.com
h.zstbio.com
saiseido.cn
zstbio.com
zstbio.com
saiseido.cn
zstbio.com
zstbio.com
nbc.zstbio.com
zstbio.com
zstbio.com
saiseido.cn
zstbio.com
tk.zstbio.com
zstbio.com
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
zstbio.com
tk.zstbio.com
nbc.zstbio.com
zstbio.com
nbc.zstbio.com
tk.zstbio.com
zstbio.com
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 zstbio.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFNzCCBB+gAwIBAgISAwAm6LhoUOENGnSXgf1xEjyMMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xODAzMTExNzMyNTRaFw0x ODA2MDkxNzMyNTRaMBUxEzARBgNVBAMTCnpzdGJpby5jb20wggEiMA0GCSqGSIb3 DQEBAQUAA4IBDwAwggEKAoIBAQC5Bxs8GGCAZIBx8ANeLgoltj9qudFw95KnA7k3 1JPn/++jRHA3Kc05k4cVM04SDedzvNbmf010sDBSAnP6SEXTpl4HdI9Lf8g+c45A DGEsdSanqp83Yf9E3bbDTYKvIBEbBHI5ll1bSRgUcM5amOf3Sgiiajv8UoYOMU8A h0+5Ao2G7/G4jPfEhj/Kc/XVhFDGWCL6Fh0gaPJ//2RtPfcsiZIVJ8oU1vO4VFFN xTfSNeBspwUTBKZTd2JhwXqkJLxvQ7jzmaHxQUaaizg1k9B1GrBBkArWSyh7dWSY qq9zVSyBqRpPG2UZtcFX8Xj8Bgzx+WDJvBka76dFE9urReTdAgMBAAGjggJKMIIC RjAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMC MAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFHh7kmk8qmpV6THpiMu1hmv85pCEMB8G A1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsGAQUFBwEBBGMwYTAu BggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNlbmNyeXB0Lm9yZzAv BggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNlbmNyeXB0Lm9yZy8w VQYDVR0RBE4wTIIPc3VtaXJlLWNvcnAuY29tgglzdW1pcmUuaGuCE3d3dy5zdW1p cmUtY29ycC5jb22CDXd3dy5zdW1pcmUuaGuCCnpzdGJpby5jb20wgf4GA1UdIASB 9jCB8zAIBgZngQwBAgEwgeYGCysGAQQBgt8TAQEBMIHWMCYGCCsGAQUFBwIBFhpo dHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCBqwYIKwYBBQUHAgIwgZ4MgZtUaGlz IENlcnRpZmljYXRlIG1heSBvbmx5IGJlIHJlbGllZCB1cG9uIGJ5IFJlbHlpbmcg UGFydGllcyBhbmQgb25seSBpbiBhY2NvcmRhbmNlIHdpdGggdGhlIENlcnRpZmlj YXRlIFBvbGljeSBmb3VuZCBhdCBodHRwczovL2xldHNlbmNyeXB0Lm9yZy9yZXBv c2l0b3J5LzANBgkqhkiG9w0BAQsFAAOCAQEAMM2vJ/DCkyUTbtnGjl1xkfGT45Ao 9pzS9MY2ycM2SbwKEJzcl4eNwR8QLNXb2foNHSwet5ucFcj4ON2JX4wqzyWzdWFz Y2fCJ/5E3PjmFMUMDWsFdQXniSK2t5eqKk9iXI7f0OJQLBPZbrzdEPeREa84gENq 8C7wSHoSFhRYqG2RReuQJYubHRL+vwoRztLzfIqOsJYtMJupTAB7v+pHyezUjDAu H9OHC2p4hhXXIB3REQidMNhW+SujtOVnyyrffpZoYnE5kquxcEtFxyjchlMNzkq2 YBmgiRR6oor1hcRc5xuHt+lCK3zble/XTWyKBN0QxhDYIPBg8fOFoVaffg== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuQcbPBhggGSAcfADXi4K JbY/arnRcPeSpwO5N9ST5//vo0RwNynNOZOHFTNOEg3nc7zW5n9NdLAwUgJz+khF 06ZeB3SPS3/IPnOOQAxhLHUmp6qfN2H/RN22w02CryARGwRyOZZdW0kYFHDOWpjn 90oIomo7/FKGDjFPAIdPuQKNhu/xuIz3xIY/ynP11YRQxlgi+hYdIGjyf/9kbT33 LImSFSfKFNbzuFRRTcU30jXgbKcFEwSmU3diYcF6pCS8b0O485mh8UFGmos4NZPQ dRqwQZAK1ksoe3VkmKqvc1UsgakaTxtlGbXBV/F4/AYM8flgybwZGu+nRRPbq0Xk 3QIDAQAB -----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 261388576812219873667416613213899360189580 . . . . . . . . [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 2018-03-11 17:32:54 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-06-09 17:32:54 +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 23357590708131122679664852106486979352001491752598800332803681444061457290895598220057869955060388506095391290537166925860488084417389171816887884530441575246726970242379739673034467690572808253344139866804597626878671057017102897108780164837493859619150988640086635676335868541111547161341886350927505870312008017644039002787247515747932900534994554697893912566944026639989979067214072062532574704606500681584783809452609113964923245063070513610007601436610075881573581237067227958542943830807605293612194013253500445227604561011801852677424917549298871996409803898007206874044058276268665783577772101122578396341469 . . . . . . . . . . . . . . . . . . . . [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) 787b92693caa6a55e931e988cbb5866bfce69084 . . . . . . . . . . . . . . . . [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 (78 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'sumire-corp.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'sumire.hk' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 (246 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 1.3.6.1.5.5.7.2.2 (unotice) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/' . . . . [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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