www.guangdongexpo.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:b1:44:74:4b:ca:cb:16:92:e9:3c:34:c6:00:0f:03:ac:71 was issued on by Let's Encrypt.

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=www.guangdongexpo.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:b1:44:74:4b:ca:cb:16:92:e9:3c:34:c6:00:0f:03:ac:71
Serial Number (int): 321657828087683474141137751179614056852593
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: f1:0c:17:f5:ba:8d:6a:e7:59:a6:65:6d:66:28:96:3f:72:7b:66:d9
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): cf:ea:42:88:79:4c:90:4e:fa:e4:9d:22:7a:d1:16:83:e9:b2:03:ec
Fingerprint (sha256): f7:5b:36:98:fd:e2:6e:8e:88:a8:b1:01:8c:15:4a:eb:e2:1a:dc:46:ec:3d:40:a9:95:19:9f:69:ff:54:a7:a5

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 www.guangdongexpo.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.guangdongexpo.com

Public Key Algorithm

RSA

Key Size

4096

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

www.guangdongexpo.com

Other certificates including the domain name guangdongexpo.com

(limited to 100 certificates)

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 321657828087683474141137751179614056852593
 . . . . . . . . [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 2019-10-17 08:17:02 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-15 08:17:02 +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 'www.guangdongexpo.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 655311803534193512702516261743783087772393085268448786052608462592143571571022346614733231821278311837183150737952834392441505876322467486765937021828047256782189490898124873760821552953143162737246525165146707436781402496884684815154785583908621454870002434164471568305957743571203049967668290111433715262133718072795552497793020366020835717346627624066271652185125409337072655795623565227099880949647641360354492335552707248666647992157080973971908363140007474689792548141661896241138994411202729301863782430907699428228692430502582292361723034286716551138122464141673023811457806968219404675305223278441433971679285199761103935814331972590622519728110720560707721727968065806626626730895235827350543625681967057562462606647596264463792606039407929345451138424709425224219167820817665789864888881259679969565364657906361023755741462964108551347382061253772027922823766060033009436354399205340115693524012797469798158428060710747023377600886254328451946600040220087317591599106084786362195789607773979451267397331271454961455872228580097170611913620036278141379743627424710054734926713225364944442099851395461613703229691072763222297305134477292410378070609701444739353142732931443373811166339020696084133934068584260991847216216003
 . . . . . . . . . . . . . . . . . . . . [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)
							f10c17f5ba8d6ae759a6656d6628963f727b66d9
 . . . . . . . . . . . . . . . . [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 (25 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.guangdongexpo.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)
							00ee0075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016dd90195b5000004030046304402203a8cc32d04d23f46804181e1e930f950b2c389fb8b94dc6b2eb6a8a840a65651022005342865422c60b32f96a344e9de69f4ebfc1afa4bb303d02eae83cec54bd656007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016dd9019594000004030046304402204d924a0baf716876060f01dd64c67425e1968519d2353d3df5aec43e30d28d2d02204fc192501cbb385902ccb19c924c05461d2761c9fe1408eaecd6f01aebcb19fc
 . . . . [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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