ISRG Root X1 site err_cert_date_invalid

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Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. crt.sh | example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is: https://copy.dnewmedia.co.kr/

I ran this command: ISRG Root X1 > On some devices, opened error ( err_cert_date_invalid )

It produced this output:

My web server is (include version): centos 6

The operating system my web server runs on is (include version):

My hosting provider, if applicable, is:

I can login to a root shell on my machine (yes or no, or I don't know): yes

I'm using a control panel to manage my site (no, or provide the name and version of the control panel):

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot): certbot 1.10.1

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Hi there,
That site looks like it's serving Let's Encrypt's currently recommended chain, which should work on most devices. What specific devices is it not working on?

1 Like
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i don't know.. that some of the PC.

1633077373519
1633077373519792ร—617 92.4 KB

it show this view.
but, red part click, https-page is show.
Although, It doesn't look like a green lock.

i see this blog, resorved!
but.. Is this a fundamental solution?

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