noun
dot-com bubble; Internet bubble
Refers to the speculative bubble in Internet-related stocks in the late 1990s and early 2000s.
インターネットバブルがはじけた後、多くのIT企業が倒産した。
After the dot-com bubble burst, many IT companies went bankrupt.
Variant with an interpunct; less common but still seen.
From English 'Internet bubble', a direct loanword referring to the dot-com bubble.