Stackhal
by stackhal.com in Developer tools
Outside-in DNS, email security, SEO, GEO and app-link checks plus developer utilities.
https://stackhal.com/mcp
Last 30 days
- Uptime
- 100%
- Response time
- 111 ms typical, 111 ms slowest 5%
- Last check
- 4 h ago
- Next check
- in 2 h
How to call it
Add it to any MCP client that supports remote servers.
{
"mcpServers": {
"stackhal": {
"type": "http",
"url": "https://stackhal.com/mcp"
}
}
}13 tools
- validate_app_links
Inspect and validate Apple App Site Association (apple-app-site-association) and Android Digital Asset Links (assetlinks.json) files, HTTPS hosting rules, and test URL path routing, and compare the origin AASA with the copy on Apple's CDN.
- audit_website_seo
Run a deterministic technical SEO audit for a public website URL. Checks canonicals, title tags, headings, robots.txt, sitemaps, redirects, crawl traps, and indexability.
- transpile_to_caddyfile
Transpile Nginx (nginx.conf, server blocks) or Apache (.htaccess, VirtualHost) web server configuration to clean, idiomatic Caddyfile with migration advisories.
- calculate_cidr_overlap
Analyze IPv4/IPv6 CIDR subnets for range collisions, full containment, 2D bit-tree matrix partition, and available free subnet allocation.
- diagnose_cors_policy
Analyze CORS HTTP request and response headers for wildcard/credential security violations, missing Vary: Origin, preflight OPTIONS handling, and header exposure.
- trace_dns_delegation
Query live DNS records and inspect the authoritative nameservers returned for a domain.
- inspect_domain_security
Inspect domain email security and deliverability standards: DMARC (BIMI compliance), BIMI DNS & SVG reachability, MTA-STS (RFC 8461), SMTP TLS-RPT (RFC 8460), SPF and MX records.
- generate_favicon_suite
Generate modern multi-platform favicon bundle (adaptive dark-mode SVG, multi-resolution ICO, Apple Touch Icon, Android PWA icons, webmanifest) and minimal HTML tags from SVG or image input.
- analyze_geo_readiness
Analyze Generative Engine Optimization (GEO) signals and AI crawler readiness for a web page (schema, citations, provenance, answer structure, llms.txt, AI bot robots rules).
- inspect_apple_pkpass
Inspect and validate Apple Wallet .pkpass JSON structure (pass.json) or package manifests: checks required keys, pass styles, dates, ISO 8601 timezones, transit types, barcodes, and color contrast.
- generate_apple_pkpass_spec
Generate a production-ready, fully compliant Apple Wallet pass.json specification based on pass type, metadata, colors, barcode, and field values.
- repair_apple_pkpass_spec
Automatically repair and sanitize broken Apple Wallet pass.json manifests: fixes missing formatVersion, prefixes passTypeIdentifier, ensures 10-character team ID, normalizes dates to ISO 8601 with timezones, and auto-corrects low contrast.
- transpile_regex_engine
Transpile and analyze regular expressions across engines (PCRE, Go RE2, JavaScript, Python re, Rust regex) with compatibility checks and ReDoS safety analysis.
Security scan
- No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.
Recent checks
| When | Result | HTTP | Time |
|---|---|---|---|
| 4 h ago | Passed | 200 | 111 ms |