> ## Documentation Index
> Fetch the complete documentation index at: https://docs.signalark.app/llms.txt
> Use this file to discover all available pages before exploring further.

# Signal Sources

> The 15+ real-time data sources SignalArk monitors for buying signals.

SignalArk casts a wide net across the public internet, proprietary databases, and social platforms to detect buying signals.

## The Master Source List

Our continuous ingestion cron jobs monitor the following sources:

<CardGroup cols={3}>
  <Card title="Job Boards" icon="briefcase">
    Hiring velocity, new leadership roles, and tech stack mentions in job descriptions.
  </Card>

  <Card title="News & Press" icon="newspaper">
    Funding rounds, M\&A, product launches, and regulatory compliance news.
  </Card>

  <Card title="LinkedIn" icon="linkedin">
    Company page updates, executive movements, and employee headcount growth.
  </Card>

  <Card title="Twitter / X" icon="x-twitter">
    Brand mentions, executive posts, and competitor complaints.
  </Card>

  <Card title="Reddit" icon="reddit">
    Niche community discussions and tool recommendations.
  </Card>

  <Card title="HackerNews" icon="y-combinator">
    Technical trends, "Ask HN", and startup launches.
  </Card>

  <Card title="GitHub" icon="github">
    Open-source technology adoption, starring, and developer activity.
  </Card>

  <Card title="G2 & Review Sites" icon="star">
    Competitor reviews, category interest, and feature complaints.
  </Card>

  <Card title="Product Hunt" icon="product-hunt">
    New tool adoption, upvoting, and maker activity.
  </Card>

  <Card title="Tech Dependencies" icon="npm">
    npm, PyPI trends, and package installations.
  </Card>

  <Card title="Financial Data" icon="building-columns">
    Crunchbase rounds and SEC filings.
  </Card>

  <Card title="Infrastructure" icon="server">
    Shodan port scans, tech installs, and certificate transparency logs.
  </Card>

  <Card title="Developer Forums" icon="stack-overflow">
    Stack Overflow questions and dev.to articles indicating technical challenges.
  </Card>
</CardGroup>

## Social Monitoring

Beyond broad market signals, SignalArk allows you to set up specific **Social Monitors** to track past champions, key executives, and competitor hashtags across LinkedIn, X, and Reddit. High-warmth engagements are automatically promoted to your sales pipeline.

## Keyword Listening

Define exact phrases, exclude noise terms, and scope rules to specific sources (e.g., only track "SOC2 compliance" in News and Job Postings). Keyword hits are classified as high-signal market events.

## External Ingestion (Flint Integration)

SignalArk partners with external data providers like **Flint** to ingest proprietary signals via our API key authenticated `v1/signals/ingest` and `v1/social/ingest` endpoints. Externally ingested signals pass through the same deduplication, AI classification, and scoring pipeline as native signals.