www.guangdongexpo.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:5b:63:6d:5c:30:bf:f5:0e:85:94:98:dc:0a:99:05:85:7a 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): 03:5b:63:6d:5c:30:bf:f5:0e:85:94:98:dc:0a:99:05:85:7a
Serial Number (int): 292434714586870470311585079478898548639098
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: f0:29:02:28:58:5e:21:41:6a:bb:8d:6e:9d:e8:44:0b:8e:09:6f:e3
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): e2:47:0d:1b:b0:b6:14:3b:bd:45:74:c2:1a:e0:76:a3:df:f7:df:94
Fingerprint (sha256): 33:04:38:48:6a:c0:a5:70:9d:81:3d:42:79:5d:58:c7:1d:0b:98:81:fd:ab:0d:e4:3e:cd:7b:70:6e:76:d9:59

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 292434714586870470311585079478898548639098
 . . . . . . . . [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 2020-02-23 02:59:09 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-23 02:59:09 +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 '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 859401696760361243597895671161124771511481899348511685950138569653433105938882003966780229347850501611163586103484703328592751741414734570164621450187223219887580400897782306328033461923127287597946553578277335881505416029830113605510822297559060443929084876935316526381907068307139150472014909842792207664305486891024020271488649060847262481596261353575265790843460138202959110070283303012544483287456653116054039742383252104382306120187573371361040745314556095519042213829628340638502715529465882648008047224793452014368284967129804269543704830769032318411059570694963278356040969954136735198022040758609758508505951445091222524518118312400284130216929228509592722123792110550067059897244832602311563059127745896041136215529652285279785914989041322747865985047728471515122638638388645359384991719119661945838860921668251913018052985459017087905849388836196122817586657487309753146838356982438123748322949211221267956229513278417677411335917299970675176082181184178881578651144532550834024767058140013459585066680216006531391188774896664672546281978543038693734552093780524780568914878423568966122311004226084218884233131206985209569549294576977006460852111772231142569148651797420740186041520477504884105158366775278515727395015327
 . . . . . . . . . . . . . . . . . . . . [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)
							f0290228585e21416abb8d6e9de8440b8e096fe3
 . . . . . . . . . . . . . . . . [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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f2007700e712f2b0377e1a62fb8ec90c6184f1ea7b37cb561d11265bf3e0f34bf241546e000001707032ea320000040300483046022100df5053b5942c9512f274fda041e3e982c90b713afb4638425655d39b2aaf31a202210089494103b0b27813f046c87d22694aa18df8c0d503f71d7ba1678b8d62a00846007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e000001707032ea290000040300483046022100d0a73fa93c03a513318f3bf3978a9994319cdfa249ec766846f726858faf564d022100af2ea5afcdd44e140d75c133848f64e44d766082a8a8919acf08dfbe77b43bb1
 . . . . [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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