Free Tools to Diagnose & Harden Your Stack

Instant read-only checks for security, DNS, performance, and SEO — built for developers and hosting teams.

No signup required • 10 free tools • Read-only scans

Security & Deliverability

Harden infrastructure, verify email authentication, and audit WordPress exposure before attackers find the gaps.

Scan security headers and SSL certificates instantly for any public website.

Test whether server ports are open, closed, or filtered by a firewall.

Verify SPF, DKIM and DMARC to stop spoofing and spam.

Audit a WordPress site for common hardening gaps.

Measure DNS speed, compression, caching layers, and next-gen HTTP/3 support for any public website.

Look up DNS records and measure real Time To First Byte.

Confirm Gzip or Brotli is active and measure bandwidth savings.

Detect CMS, CDN, analytics, JS libraries, SEO plugins, and caching — Wappalyzer-style.

Check whether a host supports next-gen HTTP/3 (QUIC).

Build cron schedules in plain English and confirm search engines can crawl and index your pages.

Build and explain cron schedules visually — right in your browser.

Check robots.txt, meta robots, canonical, and indexability.

Leave the infrastructure to us. From deployment to management, HostsNiX helps you run projects with confidence and scale without complexity.

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Built for creators, developers, and growing businesses.

Are these tools really free?

Yes. All 10 utilities are free to use in your browser. Most call our secure backend API; the Cron Job Generator runs entirely client-side.

Do I need a HostsNix account?

No account is required. Enter a domain or URL and run the check immediately.

Will these tools modify my server or website?

Never. Every tool performs read-only analysis. You review results and apply any fixes manually.