Peak Performance
The recorded URL now redirects offsite — often an acquisition, rebrand, or wind-down; the destination is recorded in the telemetry below. Pulse has been flat over the last 30 days. Observation is liveness-only: no tracked press, repository, or traffic rank — existence is confirmed, momentum is unobserved.
HTTP liveness
realSignal telemetry
4 families · 1 observed · observed onlyamazon.comedge
direct originserver
ServerTranco rank
unranked
Analyst read
generated from the observed metrics above · no external narrativePeak Performance's listed URL redirected off its original domain (to https://www.amazon.com/Peak-Performance-Elevate-Burnout-Science-ebook/dp/B01N1RNP9N/ref=as_li_ss_tl?_encoding=UTF8&psc=1&refRID=53V0F66DKB84P24Y67AR&linkCode=sl1&tag=krux-20&linkId=84281fbc0ec274a3fdbac2d4625178bb) when we last probed it on Aug 24, 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: 3 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-similarity| Company | Basis | Overlap | Pulse | 30d Δ | Status |
|---|---|---|---|---|---|
| Doing Business - Hellman Chang (part 2)other | tag-overlap | 100% | 40.0 | 0.0 | ● live |
| The 4-Hour Workweekproductivity | similar | 100% | 40.0 | 0.0 | ● live |
| Action Army - The long way is the short cutproductivity | similar | 100% | 40.0 | 0.0 | ● live |
| Scott's Short Stories: Notetakingproductivity | similar | 100% | 0.0 | -40.0 | ■ inactive |
| Work Hard Anywhereproductivity | similar | 100% | 40.0 | 0.0 | ● live |
| Boss Girl Creative: How to Take a Blogging Breakproductivity | similar | 100% | 40.0 | 0.0 | ● live |
| MegaMaker - 044 - What the heck happened?other | tag-overlap | 100% | 8.0 | 0.0 | — unverified |
| Love Your Work w/ David Kadavy - Make it easy to do what's good for youproductivity | similar | 100% | 8.0 | +8.0 | — unverified |
Confidence reflects source and category coherence: curated = an editorially linked alternative; similar = strong functional tag-overlap in the same category; tag-overlap = shared tags only and may be noisy. Overlap is the shared functional-tag ratio (Jaccard) for tag-matched rows. Pulse is the observed-activity index real and 30d Δ its signed month change; a dash means insufficient observed history, never zero.
Structure
observed attributesFunding & 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.