hello all ,I am uploading sectigo certificate but when i am cheking using https://www.ssllabs.com/ssltest/ showing me issues by godday .But i am uploading a sectigo certficate.
ANd when trying to https://hstspreload.org/ hsts preload status checking giving me error
https://www.xxx.com uses an incomplete or invalid certificate chain. Check out your site at https://www.ssllabs.com/ssltest/

Hello team ,as per summer 21 I am geting error while clicking on Allow HSTS preloading registration in domains HSTS Preload List Submission.
It is giving error to me 
error: Cannot connect using TLSWe cannot connect to https://domainname  using TLS ("Get https://domainname: dial tcp: lookup domain.com on 169.254.169.254:53: no such host").

hello all ,I am uploading sectigo certificate but when i am cheking using https://www.ssllabs.com/ssltest/ showing me issues by godday .But i am uploading a sectigo certficate.
ANd when trying to https://hstspreload.org/ hsts preload status checking giving me error
https://www.xxx.com uses an incomplete or invalid certificate chain. Check out your site at https://www.ssllabs.com/ssltest/

Hello team ,as per summer 21 I am geting error while clicking on Allow HSTS preloading registration in domains HSTS Preload List Submission.
It is giving error to me 
error: Cannot connect using TLSWe cannot connect to https://domainname  using TLS ("Get https://domainname: dial tcp: lookup domain.com on 169.254.169.254:53: no such host").

Hi.

We need 3 Certifcates
1.SSL Certificate.
2.CA Intermediate Certiticate.
3.Root Certifcate.
If you dont got the root certitifcate from the provider,you can download it from the provider website/home page.

Uploading CA-Signed Certiifcate as follows.
1.Open a Notepad.
2.Paste each certificate as per below order into the note pad.
-----BEGIN CERTIFICATE----- 
(SSL certificate) 
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE----- 
(CA Intermediate certificate) 
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE----- 
(Root certificate) 
-----END CERTIFICATE------
3.Save the notepad as "sitesSSL.cer" or "xxx.cer"
4.Now goto Settting>Security Control>Certtificate and Key Managment
5.Select the certificate in which you want to upload.
6.Upload the newly created sitesSSL.cer
7.If no errors than your done and chek your site from the browser whether you have a lock sign in the browser or not.
cheer
suresh