To optimize an author's profile for indexing in Google, you should take the following steps in WordPress:
- Make sure that the author's profile page is set to "public" and can be accessed by search engines.
- Ensure that the author's name is included in the page title and meta description of their profile page.
- Use the author's name in the URL of their profile page.
- Include a bio and a photo of the author on their profile page.
- Use structured data on the author's profile page to give search engines more information about the author, such as their name, bio, and profile image.
- Link to the author's profile page from other parts of your website, such as from blog post bylines.
- Encourage other websites to link to the author's profile page.
- Regularly update the author's profile page with fresh content to keep it relevant and attract more links over time.
- Use the Yoast SEO plugin which will help you to check on the SEO of the page and make sure that it is optimized for search engines.
- Submit your website to Google Search Console and submit your authors profile page to Google index.
Please note that these steps are not guaranteed to result in the author's profile being indexed by Google, but following them will increase the chances of it being indexed.