Nineteen43
877 of 877 reviews · 100% coverage · googleReviewsChecker
No strong manipulation signal
Credible-reviewer 1★ rate
2.1%
Campaign-like reviews
3.3%
Outside flagged months
96.7%
5★ from ≤2-review accts
7.6%
→
The estimate uses the lowest sufficiently sampled credible-reviewer cohort and never raises the displayed average. Manipulation risk does not subtract stars directly.
Why this boost score?
Campaign-like months contribute to the risk verdict, while the rating remains based only on observed credible-reviewer evidence. Elevated risk begins at 35/100.
| Signal | Observed | Points |
|---|
| 5★ from ≤2-review accounts | 67 reviews (7.6%) | 8.2/30 |
| Reviews on burst days | 0 reviews on 0 days (0%) | 0/35 |
| Peak/median monthly ramp | 3.2× | 0.3/20 |
| Tightest five-minute cluster | 3 reviews | 0/15 |
| Total | | 8.5/100 |
Reviews per month by star rating
stack height = total reviews · gaps = zero-review months · outlined stacks = non-seasonal campaign-like months
Reviews per day (recent)
shows the 160 most recent active review dates; scoring uses the full dated history · red = burst day (≥8)
Credible reviewers — the quality test
| Reviewer pool | Rating | 1★ rate | ≤3★ share |
|---|
| All reviews | 4.75 | 2.9% | 5.5% |
| Veteran (≥20) | 4.743 | 1.8% | 5.2% |
| Veteran (≥50) — estimate basis | 4.738 | 1.1% | 5.1% |
| Most experienced (≥100) | 4.745 | 0.7% | 3.9% |
| Local Guides | 4.752 | 2.1% | 5% |
| Credible union (Local Guide or ≥20) | 4.752 | 2.1% | 5% |
| Credible outside campaign-like months | 4.744 | 2.2% | 5.2% |
Non-seasonal campaign-like months (1)
Each month is compared with the same calendar month in other years; ≥90% 5★ distinguishes positive campaigns from ordinary busy or complaint-heavy months.
| Month | Reviews | Other-year median | YoY ratio | 5★ | Mean |
|---|
| 2020-10 | 29 | 9 | 3.2× | 100% | 5 |
Burst days (≥8/day)
| Day | Reviews |
|---|
| none — no burst days |