The website first started on domain A and was building up its authority. Later, domain B was listed as the primary mirror in the robots.txt file.

Search results from Bing display pages from domain B, while Google shows pages from domain A.

Currently, domain B has been shut down by the registrar and won't be available for renewal, and domain A is set to expire soon. This means that immediate actions are necessary to disconnect domain A from domain B.

I think it's only Bing that's combining the two domains, and I need to separate them. However, I'm unsure how to detach domain A from domain B since domain B is inactive and won't be renewed, which means I can't declare domain A as the main mirror in its robots.txt. Right now, I've marked domain A as the primary mirror in its robots.txt, but I have doubts if this is the correct approach.

I need assistance! Please advise me on the best way out of this dilemma!

Since you've marked domain A as the primary mirror in its robots.txt, that's a good first step. However, you need to make a few more adjustments to ensure search engines, especially Bing, properly recognize that domain A is the sole authority moving forward.

1. Update the Robots.txt: Ensure that in domain A's robots.txt, you explicitly state that it is the primary site. You can add a line like "Sitemap: http://www.domainA.com/sitemap.xml" to point to your sitemap, which will help search engines crawl it correctly.

2. 301 Redirects: Although domain B is inactive, if you have any access to its settings or its previous hosting provider, set up a 301 redirect from domain B to domain A. This signals to search engines that all traffic and link equity should be passed to domain A. It helps in transferring any remaining authority that may still be linked to domain B.

3. Google Search Console and Bing Webmaster Tools: Make sure domain A is verified in both Google Search Console and Bing Webmaster Tools. In Google Search Console, you can submit the updated sitemap and request indexing. Also, use the "Change of Address" tool to inform Google about the domain B deprecation. For Bing, submit domain A to help it understand the changes.

4. Build New Backlinks: Since domain B is no longer available, focus on building new backlinks to domain A. Reach out to websites that previously linked to domain B and ask them to update their links to point to domain A instead.

5. Monitoring and Adjustments: Keep an eye on your site's performance in both search engines. Monitor changes in traffic and indexing status. If you notice domain A still has issues with visibility, consider reaching out to search engine support for assistance.

6. Content Duplication: If there was any content replicated on domain B from domain A, ensure that all content is unique to avoid duplicate content issues.

7. Remove Old Mentions of Domain B: If there are any social media profiles or listings that reference domain B, update them to reflect domain A. Consistency across all platforms is critical during transitions like this.

8. Prepare for Domain A Expiration: Since domain A is set to expire soon, renew it immediately to ensure you don't lose it. It's important to keep it active while you're making these changes.

Following these steps should help you effectively separate domain A from domain B, increase the chances of recognition by search engines, and fortify your online presence.

Because the metrics are coming from site A, the info in the robots.txt file of that particular site plays a crucial role. Make sure to modify the host instruction inside it, then just hang tight for a bit. It's essential to keep an eye on any adjustments, because those changes could significantly impact how search engines crawl your site.

I can say that the issue you're facing is quite common in the domain world. I encountered a similar situation which I'll share here instead of opening a new topic.

Back in January, I snatched up a domain that had previously dropped. By April, I launched an English site on it. Initially, it seemed to index well in Google. However, I soon realized that my new domain was still associated—glued, if you will—to another active website. When I registered it, I didn't notice this issue because typically, the glue tends to detach itself after about two weeks. Now, three months have come and gone, and my site has been stuck like this for a full month without any sign of change.

I'm looking for solutions on how to resolve this sticky situation. It's frustrating, especially since I was expecting everything to settle down by now. Maybe there are certain tricks or a method to expedite the detachment process?