12 Free Tools · Ready to Use Instantly

🧰 Free Webmaster Tools

A collection of online tools from AsiaGB to check and manage your website, domain, and server — right in your browser.

All free · No sign-up · We never store your data

Check & Diagnose

Inspect your SSL, DNS, domain, IP, and email in real time

SSL/TLS🔒

SSL Server Test

Check your SSL/TLS grade (A–F), supported TLS versions, expiry date, and certificate chain integrity.

Open tool → DNS🔍

DNS Lookup

View every DNS record type — A, AAAA, MX, NS, TXT, CNAME, SOA, CAA — for any domain.

Open tool → DNS🌍

DNS Propagation Checker

See whether a DNS record has propagated across resolvers worldwide after a change — 12 resolvers at once.

Open tool → Domain📋

WHOIS Lookup

Check domain owner, registrar, registration and expiry dates, and name servers.

Open tool → Network🌐

IP Lookup

Find IP location, ISP, country, city, and timezone — supports both IPv4 and IPv6.

Open tool → Email📧

Email Header Analyzer

Analyze email headers — SPF / DKIM / DMARC results, delivery path, and delay hops.

Open tool → Email📨

SPF / DKIM / DMARC Generator

Build the DNS records that authenticate your email — stop spoofing and stay out of spam.

Open tool → Calc🧮

Hosting Cost Calculator

Estimate 1–5 year costs for hosting / domain / SSL and compare AsiaGB with overseas providers.

Open tool →

Generate & For Developers

Tools to build common server files and configuration values

Linux⏰

Cron Generator

Build a Cron Expression for scheduling Linux cron jobs — pick minute, hour, day, and month.

Open tool → Apache⚙️

.htaccess Generator

Generate .htaccess rules — HTTPS redirect, www/non-www, error pages, directory protection, and more.

Open tool → Security🛡️

Security Headers Generator

Build HTTP security headers for .htaccess or Nginx — HSTS, CSP, X-Frame-Options to stop XSS and clickjacking.

Open tool → Security🔑

Password Generator

Generate strong, secure random passwords with custom length and character sets — created in your browser.