dombrains@cloud:~$ ./scan --all
>
26 free tools for
your
domains, DNS, SSL & email.
SSL / DMARC / SPF / DKIM / WHOIS / DNS / MX / security headers / CT logs / typosquat watcher — one focused page per check. Save your domains and get alerts by email, Slack, or Discord before things break.
// no signup needed for tools · sign up only to save & monitor
[ 24 free_tools ]
Everything you need to diagnose a domain — 26 tools, no signup
> /ssl-checker
SSL Checker
cert.expiry · chain · tls
> /dmarc-checker
DMARC Checker
policy · alignment · rua
> /spf-checker
SPF Checker
syntax · 10-lookup · +all
> /dkim-checker
DKIM Checker
selector · key.size · valid
> /mx-lookup
MX Lookup
priority · ips · provider
> /dns-propagation
DNS Propagation
12 resolvers · parallel
> /whois-lookup
WHOIS Lookup
registrar · expiry · ns
> /security-headers
Security Headers
hsts · csp · x-frame-opts
> /redirect-chain
Redirect Chain
301 · 302 · hop timing
> /subdomain-finder
Subdomain Finder
ct-logs · crt.sh · osint
> /blacklist-checker
Blacklist (RBL)
spamhaus · barracuda · +6
> /reverse-dns
Reverse DNS
ptr lookup · ip → host
> /dnssec-checker
DNSSEC Checker
dnskey · ds · signed?
> /http-protocol-checker
HTTP/2 + HTTP/3
alpn · alt-svc · tls
> /domain-age
Domain Age
whois · ct logs · years
> /cookie-audit
Cookie Audit
secure · httponly · samesite
> /email-auth-scanner
Email Auth Scanner
spf+dkim+dmarc+ptr+mta-sts
> /spf-generator
SPF Generator
build · validate · lookups
> /dmarc-generator
DMARC Generator
policy · alignment · rua
> /dkim-generator
DKIM Generator
rsa · 2048-bit · txt
> /bulk-checker
Bulk Checker
audit many domains at once
> /takeover-checker
Takeover Checker
dangling cname · saas · risk
> /impersonation-watcher
Typosquat Watcher
cousin-domain · phishing · osint
> /compare
Compare Domains
two domains · side-by-side
> /deliverability
Deliverability Report
ai · per-provider · copy-paste fixes
> /dns-explainer
DNS Explainer
ai · paste any record · plain english
// more tools coming soon · all free · no signup
[ how_it_works ]
Check once. Or save & monitor forever.
step_01
Pick a tool, paste a domain
No signup. No paywall. Instant results with plain-English explanations.
step_02
Save domains you care about
Sign up free. Save up to 25 domains. Daily auto-checks across all tools.
step_03
Get alerts before things break
Email or Slack alerts when SSL is about to expire, DNS changes, DMARC fails.
[ pricing ]
Free during early access
All features free while we're in early access. Help us shape the product with your feedback.
[ early_access ]
$0 / mo
- ✓All free tools, no signup
- ✓Save up to 25 domains
- ✓Daily auto-checks
- ✓Email + Slack alerts
- ✓Full check history
- ✓Google login