Hosting test before domain name migration

Hello,
I have a problem. I would like to migrate my domain to OVH, but first I want to test the site.
I updated the site pages under www. I updated the database.
With my current host I created a sub‑domain test and updated the DNS
test / 0 / TXT / points to "RHtVpS+488eXjlgOmqmTiA"
test / 300 / A / points to 146.59.209.152
Same for www.test and same for the IPv6 address.

At OVH, I added test.domain in multisite, and when I click on A and AAAA, I get the message that the domain is configured to the IP address of my hosting.

But when I go to the site I see the OVH "Site under construction" page.
What should I do?
Thanks for your help.

Well COMPLEMENTARY INFORMATION.
In fact there was an "index.html" file, invisible and not deletable in www. I therefore renamed www and www.ori, created a new www, transferred the site files again into the new www. And now everything works. I then deleted www.ori.
If this can help others, that would be perfect

Hello @jpn

Did you delete the index.html file that is in the www folder?

That was indeed the issue; I just completed my message, the index.html was invisible and undeletable. I performed a recreation of the www so that I no longer have this file.
Thank you for the information

Hello @jpn

I forgot to mention that you just need to rename it to index_OVH.html

Hello,

if it is the "ovhcontrol" token of your OVH hosting, you should use ovhcontrol instead of test where I have bolded it.