1. Google Is Rewriting Your Titles

Google rewrites page titles if:

• Your Titles Are Too Short or Generic: If a page title is vague (e.g., "Home" or "About"), Google may add the site name to provide more context.

• Lack of Branding in Titles: If your titles don’t explicitly include your brand or domain name, Google may append it to clarify the source.

• Duplicate Titles Across Pages: If multiple pages share the same or very similar titles, Google may add the domain name to differentiate them.

2. Website Name Policy

Google introduced a feature to display the website name in search results, especially on mobile. If your site doesn't explicitly define its preferred name, Google may infer one based on your domain name.

3. Structured Data or Meta Tags Issues

Google looks for specific signals to identify your site name:

• < title> Tag: If the <title>tag lacks clarity, Google may adjust it.

• og:site_name Meta Tag: If Open Graph metadata includes a site name, it might influence Google's title formatting.

• Structured Data: Schema markup with a name property (e.g., in WebSite schema) can also help control how Google displays your site name.

How to Prevent or Control This

1. Craft Descriptive and Unique Titles:

   • Make sure each page title is unique, descriptive, and contains important keywords.

   • Avoid overly generic titles like "Home" or "Products."

2. Include Branding Strategically:

• Add your site name or brand to the title, ideally at the end, separated by a delimiter (e.g., " | ", " - ", or " · "). Example:

1. Define Your Website Name in Structured Data:
   Use WebSite schema to specify your site's name:

   {
     "@context": "https://schema.org",
     "@type": "WebSite",
     "name": "YourBrand",
     "url": "https://www.yourwebsite.com"
   }
   

2. Optimize Metadata:

   • Use the og:site_name tag in Open Graph metadata to reinforce your brand name:

     <meta property="og:site_name" content="YourBrand" />
     

3. Monitor and Improve Content Quality:
   Google may rewrite titles if it perceives them as not matching the content of the page. Ensure that your titles accurately reflect the content.

4. Use the URL Inspection Tool:

   • In Google Search Console, inspect the affected URLs to ensure the proper title tag is being indexed.

   • If necessary, request a re-crawl after fixing titles.