Great question! The ALT title should be the SAME as the meta tag title. Here are some simple yet good rules for Meta Tag Titles:
- Be Mindful of Length
Search engines will truncate titles in search results that exceed a certain length. For Google, this length is usually between 50-60 characters, or 512 pixels wide. If the title is too long, engines will show an ellipsis, "..." to indicate that a title tag has been cut off. That said, length is not a hard and fast rule. Longer titles often work better for social sharing, and many SEOs believe search engines may use the keywords in your title tag for ranking purposes, even if those keywords get cut off in search results. In the end, it's usually better to write a great title that converts and get clicks than it is to obsess over length. So, in short, write a title that is longer than 50 characters but does not go over 60 characters.
- Place Important Keywords Close to the Front of the Title Tag
The closer to the start of the title tag a keyword is, the more helpful it will be for ranking—and the more likely a user will be to click them in search results.
- Leverage Branding
Many SEO firms recommend using the brand name at the end of a title tag in this form: Page Title | Company Name. For a lesser known company, your brand should always be at the end.
- Consider Readability and Emotional Impact
Creating a compelling title tag will pull in more visits from the search results. It's vital to think about the entire user experience when you're creating your title tags, in addition to optimization and keyword usage. The title tag is a new visitor's first interaction with your brand when they find it in a search result; it should convey the most positive message possible.