Webmaster tools
Free, single-input lookups. No signup, no API keys. Each tool runs one focused query and shows the result — useful when you need a quick answer about a domain or page without firing the full audit.
Security
CSP Checker →
Parse a site's Content-Security-Policy header and flag the common footguns — unsafe-inline, wildcard sources, missing frame-ancestors, no reporting.
CSP Generator →
Build a draft Content-Security-Policy from a checklist — tick the third-party services you use and we'll emit a policy with sensible defaults.
Blacklist Lookup (DNSBL) →
Is your mail server's IP on Spamhaus, Barracuda, SORBS or a dozen other DNSBLs? Mail delivery, reputation, security signal.
Email Privacy Check →
Find email addresses exposed on a page — mailto: links + plaintext leaks — and tell you which are role addresses (fine) vs personal addresses (scrape bait).
Security Headers Grader →
One-shot grade of every important HTTP response header — HSTS, CSP, X-Frame-Options, Referrer-Policy, Permissions-Policy, cross-origin-* isolation, cookie flags, info-disclosure headers. Each finding links straight to a step-by-step fix guide.
Network
DNS Lookup →
A, AAAA, MX, NS, TXT, SPF, DMARC, DKIM records for any domain.
IP & Hosting Info →
Resolve a host to its IP, get the AS number, hosting provider, and country.
WHOIS Lookup →
Registrar, creation date, expiry date, nameservers.
www Redirect Checker →
Probe apex ↔ www and HTTP ↔ HTTPS — see the full redirect chain and final destination for each entry point.
Server Status Checker →
One-shot HTTP probe — status code, latency, redirect chain, key response headers.
Technical
Mobile Friendly Check →
Does the page have a viewport meta, responsive CSS hints, readable font sizes?
Meta & SEO Tags →
Title, description, keywords, Open Graph, Twitter Card, canonical, lang.
Page Size Checker →
Sum HTML + linked assets (images, scripts, stylesheets, fonts) to see what a first-time visitor actually downloads.
Redirect Generator →
Paste a two-column list of old→new URLs. We check it for conflicts / loops / self-redirects, then generate ready-to-deploy 301 redirects for Apache (.htaccess), nginx, and Cloudflare Bulk Redirects — the three most common surfaces for site migrations. Skip the manual copy-paste and typo-hunt.
404 Recovery Check →
Is your website losing visitors when they hit a page that doesn't exist? Every 404 is a lost opportunity to retain traffic — or a chance to route the visitor back into your content. This tool grades your 404 on both fronts: does it return the correct HTTP status so Search Console can find broken links, and does the page itself keep the visitor on your site (home link, search box, contact route, suggested content) rather than throwing away the click.