If you don't know already,
<a href target="_blank"> can be a security risk. But, the question I have in mind is, did I overprotect myself?
To get started, see these two links,
My understanding is,
target="_blank", navigating out will break SPA's (single page apps)
rel="noopener noreferrer"is enough for blogging sites, but
noopeneris only there for backward compat security risk.
- I don't know enough about
nofollow, or please follow...