I would start with "meta title and meta description length" on a search engine. There are hundreds of articles out there that talk about character length for title and description.
engine
4:20 pm on Aug 18, 2022 (gmt 0)
We had a good discussion about Google rewriting page titles [webmasterworld.com...] and if you follow the links you'll find out how to write titles for best practice.
martinibuster
4:26 pm on Aug 18, 2022 (gmt 0)
Never mind.
tangor
8:47 pm on Aug 18, 2022 (gmt 0)
As brief as possible, yet accurate to the page.
Keep it simple!
lucy24
9:56 pm on Aug 18, 2022 (gmt 0)
Idle query... When G### rewrites a page title, as they notoriously do whenever they feel like it, is there any relationship between the original length and the rewritten length? Are long titles more likely to get rewritten? Or is it excessively short titles that are most at risk?
A guick glance at my browser's tab bar suggests there is no point in a title that runs much past 30 characters in Roman script.
tangor
10:28 pm on Aug 18, 2022 (gmt 0)
For one site, MANY YEARS AGO, I removed all meta descriptions from the pages. The <title> is the H1 plus a site brand. Minimalist coding of the most severe kind.
G and the rest take the <title> as written with no problems, and extremely few rewrites.
Some of my clients wanted the meta stuff beefed up for "seo purposes" and those did not fair as well.
YMMV.
As for me, g is too smart and clever for me to expend any more time wasted on descriptions since they now work largely (only?) with the page content.