DeadBro – Lightweight APM for Rails apps (N+1 detection, error tracking, alerts)
DeadBro is a lightweight application performance monitoring (APM) tool specifically designed for Rails applications. It offers features such as automatic N+1 detection, error tracking, and real-time dashboards. The service includes a free tier and pricing plans that scale with traffic rather than machine count.
- ▪DeadBro provides live traces, slow SQL detection, and error tracking in one platform.
- ▪The tool is open-source and requires minimal configuration to set up.
- ▪Pricing starts at €0 for the free tier, with paid plans beginning at €19 per month.
Hacker News (Newest) files mainly under programming. We currently carry 5,306 of its stories.
Story provenance
Source · retrieval · rights · ranking — open for full record
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Story provenance
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | DeadBro APM |
| Canonical URL | https://www.deadbro.com/ |
| Publication time | Fri, 22 May 2026 22:10:58 +0000 |
| Retrieval time | 2026-05-22T22:32:03.042Z |
| Last seen | 2026-05-22T22:32:03.042Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | pI5YPYpcLPJr |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
FREE TIER · ALWAYS FREE · NO CARD Rails performance you can see, explain, and afford to keep on Request-based APM built for Rails: live traces, slow SQL, N+1 signals, and errors in one place. Start free — paid plans scale with traffic, not machine count. Pricing model: €0 free tier · paid plans from €19/mo · no per-host fees Get Started Free See Features -> deadbro.com - My App · production APM BRO Applications MY APP - PROD Performance Errors User Activity N+1 Queries Samples N+1 Alerts Errors TIME STATUS METHOD PATH DURATION CONTROLLER N+1 04:12:33 200 GET / 1161ms DashboardController#index 04:12:28 200 GET /posts 2488ms PostsController#index N+1 04:12:18 500 GET /admin 3177ms AdminController#index < 1ms Agent overhead per request 100% Open-source agent 5 min Gem, initializer & API key…
Excerpt limited to ~120 words for fair-use compliance. The full article is at DeadBro APM.
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