---
title: "Detection Rules Catalog"
description: "The LENS detection rule library — IDs, categories and what each rule looks for. Not active on accounts yet."
canonical_url: "https://docs.sealmetrics.com/lens/anomaly-detection/rule-types"
lang: "en"
date_generated: "2026-08-09T18:18:16.203Z"
source_hash: "03200cc25c92b7db517195a959f39ea760b42b9a340beb7b19445063860a696a"
content_type: "documentation"
owner: "docs"
llm_priority: "useful"
source_file: "lens/anomaly-detection/rule-types.mdx"
publisher: "Sealmetrics"
---

# Detection Rules Catalog

Canonical page: https://docs.sealmetrics.com/lens/anomaly-detection/rule-types

**Caution:**
This catalog documents the LENS detection rule library as it is **built**, not as it is **running**. **No detection rule is currently enabled on customer accounts**, so no automated insight or alert is generated today. LENS chat and LENS reports are the live capabilities — see [LENS AI](/lens).

LENS has a curated set of **25 detection rules** ready to enable. Each rule has a stable internal **ID** (used in the API and in alerts), belongs to one of LENS's categories, and follows one of two execution models:

- **Reactive** — analyzes historical data in daily/weekly/monthly batches.
- **Proactive** — near real-time checks that surface changes happening right now.

**Info:**
LENS includes a much larger internal library of rules, but most require data many accounts don't have (e-commerce product properties, microconversion funnels, content groups, multi-site portfolios, or year-over-year history). The 25 rules below are the first set slated to go live; the rest stay disabled until the required data is available. None of them runs on accounts today.

## Categories

LENS organizes rules into these categories:

| Category ID | Label | Focus |
|-------------|-------|-------|
| `critical_alerts` | Critical Alerts | Issues requiring immediate attention |
| `business_monitoring` | Business Monitoring | General business health tracking |
| `risk_management` | Risk Management | Structural business risks |
| `autopilot_checks` | Autopilot Checks | Automated monitoring tasks |
| `instant_wins` | Instant Wins | Immediate value from day 1 |
| `forecasting` | Forecasting & Prediction | AI-powered predictions |
| `growth_upside` | Growth & Revenue Upside | Direct growth opportunities |
| `ecommerce` | E-commerce Performance | Product & catalog insights |
| `user_experience` | User Experience & Funnel | UX frictions & behavior |
| `multisite` | Multi-site & Portfolio | Multi-web management |
| `reporting` | Reporting | Executive summaries |

The first-set rules below fall into `critical_alerts`, `autopilot_checks`, `growth_upside`, `risk_management`, `user_experience`, and `instant_wins`. The remaining categories exist for rules that activate once your account has the data they need.

---

## Critical Alerts

Detect when something breaks or changes meaningfully.

| Rule ID | Type | What it detects |
|---------|------|-----------------|
| `traffic_drop` | Reactive | Traffic decreases significantly vs baseline (auto-drills into sources) |
| `traffic_spike` | Reactive | Traffic increases significantly vs baseline |
| `conversion_drop` | Reactive | Conversions decrease significantly vs baseline |

---

## Autopilot Checks

Automated data-quality and tracking-health monitoring.

| Rule ID | Type | What it detects |
|---------|------|-----------------|
| `tracking_broken` | Reactive | Tracking events stop firing unexpectedly |
| `tracking_status` | Reactive | Whether tracking is working correctly (no recent events) |
| `data_health` | Reactive | Overall data collection issues and quality score |

---

## Optimization & Growth

Find where you're leaving money on the table.

| Rule ID | Category | Type | What it detects |
|---------|----------|------|-----------------|
| `device_gap` | `user_experience` | Reactive | Mobile converts significantly worse than desktop |
| `landing_page_bounce` | `user_experience` | Reactive | Landing pages with bounce rates well above average |
| `top_landing_opportunity` | `growth_upside` | Reactive | High-traffic landing pages that could convert better |
| `channel_opportunity` | `growth_upside` | Reactive | Channels with high conversion rate but low traffic share |
| `channel_conversion_efficiency` | `growth_upside` | Reactive | Channels with high efficiency that deserve more investment |
| `concentration_risk` | `risk_management` | Reactive | Over-dependence on a single traffic source/campaign |
| `traffic_mix` | `risk_management` | Reactive | Paid vs organic balance and organic-traffic trends |
| `country_conversion_gap` | `growth_upside` | Reactive | Countries with significant traffic but below-average conversions |
| `browser_compatibility_issue` | `user_experience` | Reactive | Browsers with bounce rates suggesting compatibility issues |
| `high_traffic_low_conversion` | `user_experience` | Reactive | High-traffic pages/sources with below-average conversion rate |

---

## Instant Wins (Quick Wins)

Designed to surface value from day 1, including for new and trial accounts.

| Rule ID | Type | What it detects |
|---------|------|-----------------|
| `quickwin_high_bounce_landing` | Reactive | Landing pages losing visitors immediately (high bounce) |
| `quickwin_mobile_gap` | Reactive | Whether mobile users convert significantly worse than desktop |
| `quickwin_country_opportunity` | Reactive | Countries where you're losing potential customers |
| `quickwin_source_distribution` | Reactive | Traffic sources that could perform better |
| `quickwin_conversion_rate` | Reactive | Your conversion rate compared to benchmarks |
| `quickwin_best_performers` | Reactive | What's working well, so you can scale it up |

---

## Proactive Alerts

Near real-time checks that catch sudden changes during the day.

| Rule ID | Category | Type | What it detects |
|---------|----------|------|-----------------|
| `intraday_conversion_drop` | `critical_alerts` | Proactive | Today's conversions significantly below the same day last week |
| `source_sudden_drop` | `critical_alerts` | Proactive | A significant traffic source drops dramatically |
| `landing_page_failure` | `critical_alerts` | Proactive | A landing page shows an abnormally high bounce rate |

---

## Rule structure

Every rule shares a common structure:

| Component | Description |
|-----------|-------------|
| **ID (`name`)** | Stable identifier used in alerts and the API (e.g. `traffic_drop`) |
| **Category** | Grouping for organization and display |
| **Type** | `reactive` (batch) or `proactive` (near real-time) |
| **Threshold** | The change that triggers detection — dynamically adjusted by sample size and seasonality (see [Configuring Thresholds](/lens/anomaly-detection/thresholds)) |
| **Confidence** | `high` / `medium` / `low`, derived from sample size and the data window |

---

## Plan availability

All categories — and every rule, once enabled — will be available on every v2 plan. There are no rule-level or category-level locks by tier; plans differ by data volume, not by which rules run.

## Next steps

- [How anomaly detection works →](/lens/anomaly-detection)
- [Configure thresholds →](/lens/anomaly-detection/thresholds)