30x-seo-content-decaylisted
Install: claude install-skill square-lupus579/30x-seo
# Content Decay Detection
> Find declining old content that needs refresh
## What is Content Decay
Content "rots" over time:
- Information becomes outdated (2023 data is stale in 2026)
- Competitors publish better content
- Search intent changes
- Google algorithm updates
**Result**: Rankings drop → Traffic drops → Revenue drops
---
## Detection Criteria
| Metric | Threshold | Description |
|--------|-----------|-------------|
| **Publication Date** | >6 months | New content doesn't count as decay |
| **Traffic Change** | Down >20% | Compared to 3 months ago |
| **Ranking Change** | Down >5 positions | Primary keyword |
| **CTR Change** | Down >15% | Title may need updating |
**Trigger Refresh**: Meeting any 2 criteria = needs refresh
---
## Workflow
### Method A: With GSC Data
```
User provides GSC export (CSV)
↓
Analyze each URL:
- Impression trends
- Click trends
- Average position trends
- CTR trends
↓
Identify decaying content
↓
Output refresh priority list
```
### Method B: Without GSC Data
```
User provides URL list
↓
Check each page:
- Publication date / Last updated date
- Content timeliness signals (years, "latest", etc.)
- Competitor SERP analysis (your content vs Top 10)
↓
Identify potentially decaying content
↓
Output recommendation list
```
---
## Output Format
```markdown
# Content Decay Report
## High Priority Refresh (High Traffic Impact)
| Page | Published | Traffic Change | Rank Change | Issue | Recommendation |
|------|-----------|------