Google will select the best title it wants for your search snippet – and it will take that information from multiple sources, NOT just your page title element. A small title is often appended with more information about the domain. Sometimes, if Google is confident in the BRAND name, it will replace it with that (often adding it to the beginning of your title with a colon, or sometimes appending the end of your snippet title with the actual domain address the page belongs to).
QUOTE: “Some things don’t change — users’ expectations, in particular. The popups of the early 2000s have reincarnated as modal windows, and are hated just as viscerally today as they were over a decade ago. Automatically playing audio is received just as negatively today. The following ad characteristics remained just as annoying for participants as they were in the early 2000s: Pops up – Slow loading time – Covers what you are trying to see – Moves content around – Occupies most of the page – Automatically plays sound.” Therese Fessenden, Nielsen Norman Group 2017
SEO is an acronym for "search engine optimization" or "search engine optimizer." Deciding to hire an SEO is a big decision that can potentially improve your site and save time, but you can also risk damage to your site and reputation. Make sure to research the potential advantages as well as the damage that an irresponsible SEO can do to your site. Many SEOs and other agencies and consultants provide useful services for website owners, including: