Comparison
HeaderGuard vs Open Seo
Open Seo has more GitHub stars (23,734 vs 0). Open Seo was updated more recently (last commit 1d ago). Data comes straight from GitHub and refreshes daily.
HeaderGuard
Scan a website's HTTP security headers (HSTS, CSP, framing, COOP/CORP, cookies). Score + fixes.
$
claude mcp add --transport http headerguard https://headerguard.mike-tusa.workers.dev/mcp
Open Seo
Open source alternative to Semrush and Ahrefs
$
npx skills add every-app/open-seo --skill simple-issue-description| Metric | HeaderGuard | Open Seo |
|---|---|---|
| Type | MCP server | MCP server |
| GitHub stars | 0 | 23,734 |
| Stars, last 7 days | n/a | n/a |
| Forks | 0 | 3,161 |
| Upvotes | 0 | 0 |
| Language | n/a | TypeScript |
| License | n/a | MIT |
| Last commit | n/a | 1d ago |
| Created | n/a | Feb 2026 |
| Categories | Security | Search & web, Security, AI & LLM tooling |