expression
no news is good news
Proverb meaning that if you haven't heard from someone, it likely means everything is fine. Often used to reassure oneself or others when communication is infrequent.
See also: 便りのないのはよい便り (たよりのないのはよいたより)
息子から連絡がないけど、便りがないのは良い便りだと思って待とう。
I haven't heard from my son, but I'll wait thinking that no news is good news.
試験の結果がまだ来ない。便りがないのは良い便りかな。
The exam results haven't come yet. I guess no news is good news.
Variant with の instead of が; slightly more formal or written style, but meaning is identical.
Calque of the English proverb 'no news is good news'. The Japanese version uses 便り (tidings, news) and the structure ～がないのは良い～ (the absence of ~ is good ~).