Just renew domain and website get error

Help
#1

My domain is: tradinghieuqua.com
My web server is I don’t know. Because I have been using the Blogger platform of Google.
My domain provider is: Namecheap

The problem is that i just renew the domain. This year Namecheap don’t provide an SSL (last year, Namecheap offer 1 year free).
So after that, my site got this error " ERR_CERT_COMMON_NAME_INVALID" error. And get this message " This server could not prove that it is www.tradinghieuqua.com ; its security certificate is from *.ssl.hwcdn.net . This may be caused by a misconfiguration or an attacker intercepting your connection."

And if I tried to open via HTTP, I got 502 error appeared.

Can anyone help me with this problem.
Thanks every much.

1 Like
#2

Hi @hieult

checking your domain there are completely different results - https://check-your-website.server-daten.de/?q=tradinghieuqua.com

Your ip addresses:

Host T IP-Address is auth. ∑ Queries ∑ Timeout
tradinghieuqua.com A 151.139.128.10 Ashburn/Virginia/United States (US) - Highwinds Network Group, Inc. No Hostname found yes 1 0
AAAA yes
www.tradinghieuqua.com A 151.139.128.10 Ashburn/Virginia/United States (US) - Highwinds Network Group, Inc. No Hostname found yes 1 0
AAAA yes

There is nothing from Google visible.

Your name servers:

Domain	Nameserver	NS-IP
www.tradinghieuqua.com
	•  dns1.registrar-servers.com
		•
tradinghieuqua.com
	•  dns1.registrar-servers.com
	156.154.132.200
Chicago/Illinois/United States (US) - NeuStar, Inc.	•

	• 
	2610:a1:1024::200
Sterling/Virginia/United States (US) - Cogent Communications	•

There is NeuStar, not Namecheap. I don’t know if NeuStar uses Namecheap.

There are two valid Letsencrypt certificates:

Issuer not before not after Domain names LE-Duplicate next LE
GTS CA 1D2 2019-12-06 2020-03-05 www.tradinghieuqua.com - 1 entries
Let’s Encrypt Authority X3 2019-10-23 2020-01-21 tradinghieuqua.com - 1 entries
Let’s Encrypt Authority X3 2019-10-23 2020-01-21 tradinghieuqua.com - 1 entries
Let’s Encrypt Authority X3 2019-10-09 2020-01-07 www.tradinghieuqua.com - 1 entries

2020-01-07 and 2020-01-21.

But there is a completely different certificate used:

CN=*.ssl.hwcdn.net, OU=Domain Control Validated
	03.01.2019
	21.01.2020
expires in 30 days	*.ssl.hwcdn.net, ssl.hwcdn.net - 2 entries

Looks like a CDN, so that CDN must have a valid certificate with your domain name. And there is a http status 502 - Bad Gateway.

Looks like your informations are wrong. What’s hwcdn?

2 Likes
#3

thanks @JuergenAuer
Actually I dont know either.
Now I am trying to restart my domain in Blogger setting again.

#4

It’s Namecheap. They outsource some of their DNS infrastructure to Neustar. (Previously to Verisign, which sold that business to Neustar.) See e.g.:

https://www.namecheap.com/support/knowledgebase/article.aspx/766/10/what-is-dns-server-name-server

3 Likes
#5

Ah, thanks, good to know.

#6

well till now I only have 502 bad gateway error only. The ERR_CERT_COMMON_NAME_INVALID error is no longer shown

1 Like
#7

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