RSS Link Audit (FastAPI)

A FastAPI app that accepts an RSS/Atom feed URL, fetches each post’s full HTML, extracts outbound links, groups them by hostname, hunts for each host’s RSS feed (common endpoints + homepage discovery), and renders a stylish report using the Royal Armory palette.

Features

• Input a feed URL via UI or JSON.
• Concurrent fetching (httpx + asyncio).
• Extract links from each post page.
• Group by hostname; count occurrences.
• Heuristic RSS discovery:
  • Probe common feed endpoints (e.g. /feed, /rss.xml, /atom.xml, etc.).
  • Parse homepage <link rel="alternate" ...> for RSS/Atom.
  • Scan homepage <a> tags for rss|atom|feed.
  • Validate candidates with feedparser.
• Report UI:
  • Per-host card with counts.
  • Bar visual for how many links a host has.
  • Top links (if mentioned > 1).
  • Links list truncated with a More button.
  • RSS/Atom badge if found.

Run locally

python -m venv .venv
source .venv/bin/activate   # Windows: .venv\Scripts\activate
pip install -r requirements.txt
uvicorn main:app --reload

Open: http://127.0.0.1:8000

API

POST /api/analyze
Content-Type: application/json

{"feed_url": "https://example.com/feed.xml"}

Returns JSON with the summarized data.

Notes / Caveats

• Only static HTML is parsed (no JS rendering).
• Some sites block bots; results may vary.
• For large feeds, you may wish to trim the number of posts (e.g., slice post_urls in analyze_feed).
• Consider adding caching (e.g., aiocache, Redis) if you’ll run this frequently.