Session replay is high-bandwidth diagnostic data. Watching three confused visitors hesitate at the same checkout field reveals friction that quantitative analytics would surface as a 12% drop-off without naming the cause. The qualitative signal is unique.
The tradeoff is privacy and storage. Replays often contain sensitive form input (email, password fields, partial credit cards) that platforms mask automatically — but the masking is imperfect, and storing replays creates a regulated data asset that needs governance.
For pages where the diagnosis is "is the page even good," session replay is overkill. Page-level scoring against a corpus is faster, cheaper, and works on day zero with no traffic.
How Lytms scores it
Lytms scores the page; session replay tools watch the visitor. The two operate on different layers — Lytms reads the artifact; session replay records the experience of interacting with it.
See also
See session replay on your own page.
One URL. About 2 minutes.