support.sunwaves.com.cn

Issued by R3

About this certificate

This digital certificate with serial number 03:c1:30:39:54:6c:e2:02:95:55:d0:86:ee:cd:fe:b2:ad:76 was issued on by Let's Encrypt.

With 16 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=support.sunwaves.com.cn

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:c1:30:39:54:6c:e2:02:95:55:d0:86:ee:cd:fe:b2:ad:76
Serial Number (int): 327075455228089470828944939159193203682678
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 34:34:97:76:5c:bc:45:23:07:35:01:c0:0f:01:ed:65:98:d7:8e:a4
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): f5:7d:4e:21:6e:08:32:69:8d:39:01:cb:91:b9:0f:c7:1f:eb:a9:da
Fingerprint (sha256): c6:08:a2:ce:0a:50:b8:49:8f:19:1d:3c:df:ec:f8:00:fb:7d:44:10:b4:b0:e5:5f:1d:8a:76:d0:97:a5:e7:9a

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate support.sunwaves.com.cn

16

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for support.sunwaves.com.cn

Public Key Algorithm

ECDSA

Key Size

256

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature

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

cndesk.thandora.com
customer.zohosupport.com.cn
desk.e-planet.cn
desk.solution-mall.com
sales-cn.zohodemo.com.cn
service-pfizer.bluoceansecurity.com
service-stripe.bluoceansecurity.com
service-test.bluoceansecurity.com
support-cn.zohodemo.com.cn
support-wework.bluoceansecurity.com
support.esurvey-gnss.com
support.hrwallingford.com.cn
support.manageengine.cn
support.sunwaves.com.cn
support.zhangqian99.cn
testit.megalinkware.com

Other certificates including the domain name sunwaves.com.cn

(limited to 100 certificates)
support.sunwaves.com.cn
support.sunwaves.com.cn
support.sunwaves.com.cn
sunwaves.com.cn

Certificate

The complete raw certificate details for support.sunwaves.com.cn in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAECrhkQCO10951KnyvoClElNt5OWmJ
d0i/24ZE57zoME7d6J/UDK1LyWGT9rF2jXYqpA2yttz3CXyU7IBVcRxBPg==
-----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 327075455228089470828944939159193203682678
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-03-08 02:01:21 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-06-06 02:01:20 +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 'support.sunwaves.com.cn'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.2.1 (ecPublicKey)
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.3.1.7 (prime256v1)
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (520 bits)
				00040ab8644023b5d3de752a7cafa0294494db793969897748bfdb8644e7bce8304edde89fd40cad4bc96193f6b1768d762aa40db2b6dcf7097c94ec8055711c413e
 . . . . . . . . [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 (1 bits)
							0780
 . . . . . . . . . . . . . . . . [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)
							343497765cbc4523073501c00f01ed6598d78ea4
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (451 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cndesk.thandora.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'customer.zohosupport.com.cn'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'desk.e-planet.cn'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'desk.solution-mall.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'sales-cn.zohodemo.com.cn'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'service-pfizer.bluoceansecurity.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'service-stripe.bluoceansecurity.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'service-test.bluoceansecurity.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'support-cn.zohodemo.com.cn'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'support-wework.bluoceansecurity.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'support.esurvey-gnss.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'support.hrwallingford.com.cn'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'support.manageengine.cn'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'support.sunwaves.com.cn'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'support.zhangqian99.cn'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'testit.megalinkware.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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb5200000186bf2a8af50000040300473045022079cca4050409f3bb9783b903d09ee17d04604a04ac56b9f7741c9954089dbaec02210082573a4cd4f3780ec7d9b9d1260c51874ec81d35b13f276981f90d0e5da930bf007500adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a00000186bf2a8b0f0000040300463044022015701c5583904a4e8ebf87864a3744f40c016187271c8b205e6c18498bc4322d022044305d74c8632b60936851bade53304c09d8b9d557d2fdf60914bcf080bbb8cf
 . . . . [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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