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VC Intelligence Report

Learn by Reading

Entertainment — Top-rated nonfiction book recommendation [History Books, Startup Books, Science Books]
Entertainmentest. 2017
■ Inactive
Verdict from HTTP liveness real
last probed Aug 24, 2026
Pulse 0.0 · 1/4
0.0
Pulse Index
1/4 families · real
0.0
30-day Δ
pulse momentum · real
20
HTTP probes
liveness history · real
4
Functional tags
observed attributes · real
Risk read derived from observed signals

Observed dead: the site no longer answers as a live product. 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

real
20 probes · Jun 13, 2026Aug 24, 2026aliveredirecteddeadunverified

Signal telemetry

4 families · 1 observed · observed only
Liveness probereal
alive in 0% of 20 probesavg response 928 ms
Developer tractionchecked · none
No public repository linked — GitHub signals are not tracked for this product.
Press & sentimentchecked · none
No coverage found in the tracked press corpus. Absence of press is itself a signal at this stage.
Web footprintreal
resolved host
learnbyreading.herokuapp.com
edge
direct origin
server
heroku-router
Tranco rank
unranked
Domain age & certificate data not yet collected

Analyst read

generated from the observed metrics above · no external narrative

Learn by Reading's site returned a hard-dead response when we last probed it on Aug 24, 2026, so we mark it inactive. 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: 4 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
CompanyBasisOverlapPulse30d ΔStatus
Word Mapeducationtag-overlap100%40.0+7.2● live
Presidential - George Washingtoneducationtag-overlap100%40.00.0● live
Disputed Territoriesothertag-overlap100%14.4-8.0— unverified
Useful Scienceeducationtag-overlap100%40.0+9.6● live
Learn Computer Networks Certificationseducationtag-overlap100%0.00.0■ inactive
Exponent - 53: Connect the Dotseducationtag-overlap100%40.00.0● live
Suspend Belief: The Great American Gun Debateeducationtag-overlap100%40.0+4.8● live
They Wisheducationtag-overlap100%8.00.0— 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 attributes
Business modelunknown
Liveness tiersunset
Competitive alternativesnone linked
Open sourceNo
Public APINo
Free tierNo
Enterprise tierNo

Funding & team

not in source

No 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.

RAW TELEMETRY last 14 probes
PROBEDHTTPORIGIN → RESOLVEDSERVERMSVERDICT
2026-08-24 13:44Z404learnbyreading.herokuapp.comheroku-router723dead_404
2026-08-17 13:26Z404learnbyreading.herokuapp.comheroku-router1457dead_404
2026-08-09 19:22Z404learnbyreading.herokuapp.comheroku-router115dead_404
2026-08-08 04:26Z404learnbyreading.herokuapp.comheroku-router688dead_404
2026-07-31 15:25Z404learnbyreading.herokuapp.comheroku-router127dead_404
2026-07-26 17:19Z404learnbyreading.herokuapp.comheroku-router465dead_404
2026-07-18 14:03Z404learnbyreading.herokuapp.comheroku-router1597dead_404
2026-07-13 13:51Z404learnbyreading.herokuapp.comheroku-router88dead_404
2026-07-04 15:58Z404learnbyreading.herokuapp.comheroku-router1333dead_404
2026-07-03 00:36Z404learnbyreading.herokuapp.comheroku-router2329dead_404
2026-06-24 13:33Z404learnbyreading.herokuapp.comheroku-router335dead_404
2026-06-23 10:54Z404learnbyreading.herokuapp.comheroku-router69dead_404
2026-06-21 16:57Z404learnbyreading.herokuapp.comheroku-router1819dead_404
2026-06-21 16:57Z404learnbyreading.herokuapp.comheroku-router1850dead_404
Full redirect chains, response headers, and DNS records are not captured by the current probe.
Launch Sentinel tear sheet · Learn by Reading · as of 2026-08-28 · launchsentinel.com/reports/learn-by-reading · liveness, pulse and press figures are observed data with provenance shown per panel.