# cdn-log-analyzer

> Analyze CDN access logs from a local file path or an HTTP/HTTPS URL, even when the log format is unknown. Use when you need to auto-detect CDN log formats (JSONL, CloudFront-style fields, CSV/TSV/space-delimited, nginx/apache access logs), summarize traffic/errors/cache/latency, and generate a markdown report.

- Author: taotao
- Repository: redink/skills
- Version: 20260126235456
- Stars: 0
- Forks: 0
- Last Updated: 2026-02-06
- Source: https://github.com/redink/skills
- Web: https://mule.run/skillshub/@@redink/skills~cdn-log-analyzer:20260126235456

---

---
name: cdn-log-analyzer
description: Analyze CDN access logs from a local file path or an HTTP/HTTPS URL, even when the log format is unknown. Use when you need to auto-detect CDN log formats (JSONL, CloudFront-style fields, CSV/TSV/space-delimited, nginx/apache access logs), summarize traffic/errors/cache/latency, and generate a markdown report.
---

# CDN Log Analyzer

## Quick use

Run the bundled analyzer script and then summarize the results.

Local file:

```bash
node scripts/analyze-cdn-logs.js --file /path/to/cdn.log
```

URL (HTTPS-only v1):

```bash
node scripts/analyze-cdn-logs.js --url "https://example.com/cdn.log"
node scripts/analyze-cdn-logs.js --url "https://example.com/cdn.log" --header "Authorization: Bearer XXX"
```

## Workflow

1) Ask for the input source: `--file` path or `--url`.
2) Ask what they care about (errors, cache misses, top endpoints, latency).
3) Run the script.
4) Report:
   - detected format + confidence
   - parse success rate
   - time range
   - status distribution + top status codes
   - top hosts/paths/ips/user agents
   - bytes totals (if present)
   - cache hit/miss (if present)
   - latency percentiles (if present)

## Notes

- Format detection is best-effort and based on sampling.
- The script is deterministic; it does not call an LLM.