www.guangdongexpo.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:e2:f7:1f:d8:f8:fe:f2:09:bc:64:01:89:14:5c:19:62:19 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:e2:f7:1f:d8:f8:fe:f2:09:bc:64:01:89:14:5c:19:62:19
Serial Number (int): 338569157396302281973675912683258113516057
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ba:aa:5e:8c:8e:b2:c6:4b:51:27:c9:74:5f:cf:17:09:85:42:41:1b
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 82:da:56:e2:51:f7:2c:b1:df:ed:7e:a8:0b:a2:2c:65:19:25:18:45
Fingerprint (sha256): 27:0c:3e:bc:04:aa:21:7f:0a:f7:65:97:3d:33:aa:5f:0b:6a:94:df:29:e3:cd:30:80:fd:a2:cb:40:ab:77:d3

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 338569157396302281973675912683258113516057
 . . . . . . . . [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 2019-12-23 04:09:40 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-22 04:09:40 +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 738095115591555056171251422552275115871798202978289794069068238770413209038927628030876396777104971950913725125476119992568007344020120042675946283315384975830618021063187726173935076611347911900603199417425732039967480678127336090562586556421182695145679674286759948551758422860804527499818914841500997103461641135516071005472578370373062598846880215665450722991152845571399656707133655018552409080729868665940479386175961054600899430920105037318427451692782761205390490388493486431708516723466015089278449441361336680900419322802622412926043969342242641241912465613656867481945621769174503362388849036082092362310933701060157986795216270305327337161626480810184376234050878347878853245103247780752162739601381362073603638658190715462578782231061118859887489984476899435981119824651674896681549668794825124370561865011357433893555295484303901902856012422258893478237062598399333763470472675388305711120512106825520911918605316361055741961544911323820110019076339970574858867554680082379124984280257105714806201786232161262867679538710849281607798256038180423443810560229047839921706150827455762771269772268774364537467417760587725979093987683077285812024614054838379037975294472778608164672395192103278185609717828087571380568560817
 . . . . . . . . . . . . . . . . . . . . [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)
							baaa5e8c8eb2c64b5127c9745fcf17098542411b
 . . . . . . . . . . . . . . . . [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)
							00ee0075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f31292f04000004030046304402201622d8b9e44d2f3ad383e3bca89167c098ab76bfce7446dd1ccdc049854c5f7702201d4d9d51901af1bbfda26df7f619a00a5d17fce7b32e6b96881f4f28a1298cd000750007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f31292f2d000004030046304402203c7fadb6f4a96d745368d374f4d8ae5972cef924f9049829c9ca046068a3d573022047d7a510c1987730b1a98f87d4023ed1c8b9a415199c254b4b76a7a97738bf54
 . . . . [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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