zstbio.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:3f:4d:43:af:77:1a:f7:68:37:fb:ad:07:2c:d0:11:30:0a 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): 03:3f:4d:43:af:77:1a:f7:68:37:fb:ad:07:2c:d0:11:30:0a
Serial Number (int): 282877348909723001179060403913949399035914
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 8f:9c:5c:cf:38:fc:d8:2d:94:4b:e0:42:12:f3:4e:43:ee:90:cf:41
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 41:bb:14:54:3c:4e:5f:54:11:4f:e3:dd:5b:0b:48:1e:45:a5:af:c2
Fingerprint (sha256): ba:40:7c:82:53:d2:14:c1:80:2f:c2:08:48:86:b2:43:4f:56:34:ef:75:aa:e2:05:76:06:1a:cc:7b:54:24:25

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

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

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
szz.zstbio.com
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

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0IGtdiLzJIlLtG+6vWRp
kApijBFOevGzkT/k7nlX8WHMT0WVGzEsm9R3N7WR5iqfH7uEwzuNJlCcXNdynD4x
jjylBr25GTFdUnnrneJRjfOw/Ph84BV5M1bZkKH319czhbPW2jvwg3lDwwKYRwA1
ZlpsCfZXO8ouJ1A8u/oU42pKEZgt5DEM5X4gHnpPhtZ0rtdfCAQDBs1ctd+kb/6V
xP8IsG23z4rGP5GWzKbmtLL7DX0uoMUZ5DF+on4N2XR5yWlIvpDvmmMdKYHCJNE7
L3pwCMrX4V3wg0PmHhlTGlZQc2FxzzqkSH268BtpS2IYWkQPehQyoxwsedB727uz
yQIDAQAB
-----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 282877348909723001179060403913949399035914
 . . . . . . . . [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 2019-07-18 02:59:24 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-10-16 02:59:24 +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 26321513832861591267271297072523432505227297321459119889130331187213242120074417335980139344293071069908400550638712968365306011793769850146270058688638964419148647797540796579581314537062528999590709054898684101564309016971526166474226753139870045142576897038463334624106745773019967587154539769645193891194579440531131613405125040347937617921246736081882512825028383756515502415027882205963996054936826873680084771333322963854503369187543716961824187423049535234400750196878968234402429584392299145693187241562164407430086005981923777355436604219630450612644168970815936527667177415991905461631124611459239112324041
 . . . . . . . . . . . . . . . . . . . . [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)
							8f9c5ccf38fcd82d944be04212f34e43ee90cf41
 . . . . . . . . . . . . . . . . [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 (72 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 'szz.zstbio.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee007500e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016c033c16f4000004030046304402201f58930dd9c96d5a1714822fd316b7d7c1a1809e54804684d28b8dbe2e69fc2d02204ce2961b130dc1f492571018f589dc55b1c2e28cd17ba1ff72e1940051d4ee03007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016c033c1715000004030046304402201b29e8d1aa589bd0b71bf3dde828f30d09ab373d1a9a876259b497b53c721807022058dda04a47ca08f40edaad9e5ce3b82a75ca7b459f8ba3c63b953933dcd1a255
 . . . . [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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