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  3. /Show HN: Real-time system that tracks how news spreads across 200k websites
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  3. /Show HN: Real-time system that tracks how news spreads across 200k websites
Last activity 16h agoPosted Nov 25, 2025 at 8:27 PM EST

Real-Time System That Tracks How News Spreads Across 200k Websites

antiochIst
1 points
0 comments

Mood

informative

Sentiment

positive

Category

startup_launch

Key topics

News Aggregation
Real-Time Data Processing
Natural Language Processing
Machine Learning
Data Visualization
I built a system that monitors ~200,000 news RSS feeds in near real-time and clusters related articles to show how stories spread across the web.

It uses Snowflake’s Arctic model for embeddings and HNSW for fast similarity search. Each “story cluster” shows who published first, how fast it propagated, and how the narrative evolved as more outlets picked it up.

Would love feedback on the architecture, scaling approach, and any ways to make the clusters more accurate or useful.

Live demo: https://yandori.io/news-flow/

Discussion Activity

Light discussion

First comment

7m

Peak period

1

Hour 1

Avg / period

1

Key moments

  1. 01Story posted

    Nov 25, 2025 at 8:27 PM EST

    1d ago

    Step 01
  2. 02First comment

    Nov 25, 2025 at 8:34 PM EST

    7m after posting

    Step 02
  3. 03Peak activity

    1 comments in Hour 1

    Hottest window of the conversation

    Step 03
  4. 04Latest activity

    Nov 26, 2025 at 5:09 AM EST

    16h ago

    Step 04

Generating AI Summary...

Analyzing up to 500 comments to identify key contributors and discussion patterns

Discussion (0 comments)

Discussion hasn't started yet.

ID: 46053076Type: storyLast synced: 11/26/2025, 1:28:08 AM

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