Bootstrap 4 Cheat Sheet
Verified live by HTTP probe across 17 observations. Pulse has been flat over the last 30 days.
HTTP liveness
realSignal telemetry
4 families · 2 observed · observed onlyhackerthemes.comedge
direct originserver
not reportedTranco rank
#1,904,020
Analyst read
generated from the observed metrics above · no external narrativeBootstrap 4 Cheat Sheet's listed site resolved live when we last probed it on Aug 24, 2026, so we mark it verified alive. Its Pulse Index is 41.9 of 100, built from 2 of 4 observed signal families. Observed footprint: 6 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 |
|---|---|---|---|---|---|
| Devhintsdev-tools | similar | 86% | 46.6 | 0.0 | ● live |
| OverAPIdev-tools | similar | 86% | 44.0 | +32.0 | ● live |
| CSS Animation Cheat Sheetdev-tools | similar | 83% | 1.2 | -40.0 | ■ inactive |
| &what;dev-tools | similar | 83% | 41.0 | 0.0 | ● live |
| CODYdev-tools | similar | 83% | 45.3 | 0.0 | ● live |
| PWA Storeecommerce | tag-overlap | 83% | 8.0 | 0.0 | — unverified |
| Copy Paste CSSdev-tools | similar | 83% | 40.0 | +7.2 | ● live |
| Frontend Toolsdev-tools | similar | 83% | 40.0 | +32.0 | ● live |
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.