Contagious
HTTP liveness
realPulse Index
realInsufficient observed signals for a Pulse Index — it needs at least two of four signal families. This product has 1.
Structure
observed attributesAnalyst read
generated from the observed metrics above · no external narrativeContagious's listed URL redirected off its original domain (to https://www.amazon.com/Contagious-Things-Catch-Jonah-Berger-ebook/dp/B008J4GQKW/ref=as_li_ss_tl?s=digital-text&ie=UTF8&qid=1461586620&sr=1-1&keywords=Contagious:+Why+Things+Catch+On&linkCode=sl1&tag=198403-20&linkId=d6c27fc34b1d2d7b8fa2f35ae09c9306) when we last probed it on Jul 12, 2026 — we mark it redirected, not dead. It has fewer than two observed signal families, so no Pulse Index is composed — the evidence strip shows what is and isn’t present. Observed footprint: 2 functional tags. It has no curated competitive-alternative edges yet, so the comparable set below is functional tag-similarity — read it with the confidence flags.
Comparable set
curated alternatives → functional tag-similarityNo comparable set could be resolved for this product.
Funding & team
not in sourceNo disclosed funding in our sources. Funding data covers only ~1% of the corpus (462 rounds across 79K products), so absence here is unknown, not zero— we don't estimate a number we can't source.