Winter 2016B2B
Castle
Block bots & bad behavior
Seoable for Castle
If you are part of Castle (or you are a YC founder who looks at Castle and thinks that is the kind of business I run), you probably do not have time for a six-month SEO agency contract. Seoable was built for that. Audit your site, queue 100 ready-to-publish posts, and run it all from your AI assistant.
About Castle
Instantly stop automated and human-originated account takeovers, fake accounts, and any behavior that violates your platform policies.
Quick facts
- YC Batch
- Winter 2016
- Headquarters
- San Francisco
- Team size
- 20
- Industry
- B2B • B2B -> Security
- Tags
- developer-tools, saas, security, fraud-detection
- Website
- castle.io
- Profiles
- LinkedIn · Twitter · GitHub · Crunchbase
Founders
Why founders like Castle use Seoable
- Ship without an agency. Audit your site and queue 100 posts in one afternoon. No briefs to write, no calls to take.
- Drive it from Claude or Cursor. Seoable is MCP-first. Your assistant can run audits, queue posts, and pull reports without you opening a dashboard.
- Pay per piece, not per seat. Credits instead of monthly seats. Buy what you need, when you need it.
- SEO that includes AI engines. Our audits check what ChatGPT, Claude, Perplexity, Gemini, DeepSeek, and Grok already say about you, not just Google.
More from B2B
Try it
Run an audit on your site in under five minutes.