Judging whether a website is healthy by feel is often inaccurate. Rather than chasing various newly released rankings and metrics, it is better to first get a clear look at a few basic data points. Once these data points are well understood, most problems can be pinpointed.
Source structure
Where visitors come from: direct URL entry, search engines, external links, social platforms, and what percentage each accounts for. This structure determines where to invest later. If the vast majority of traffic comes from a single channel, risk resistance is relatively weak; if the search share remains low for a long time, it indicates that content is not being effectively indexed.
Traffic quality
Bounce rate, dwell time, and pageview depth should be viewed together with page type. Landing pages naturally have short dwell times, while content pages have long dwell times, so comparing the numbers alone is meaningless. What really matters is the differences among pages of the same type, and the trend over time.
Conversion path
From when visitors enter the site to completing the target action, which pages do they pass through in between, and at which step do they drop off the most. Mapping out this path often reveals obstacles you had not noticed before, such as a form being too long or an explanation being buried too deep.
Review cadence
Data should be reviewed regularly; look at trends rather than single-day fluctuations. A day's rise or fall may have many accidental causes; only the direction over several consecutive periods is worth referencing. At the same time, distinguish natural fluctuations from structural problems; the former does not require overreacting, while the latter requires finding the cause.
Data is the basis for judgment, not the goal. Understanding the basic metrics clearly is more practical than using a bunch of new terms to explain phenomena.