Network Diagnostics,
Right in Your Browser
Professional-grade network tools — check your IP, look up domain ownership, query DNS records, and verify domain availability. Free, instant, no account needed.
Choose Your Tool
Each tool is purpose-built for a specific network diagnostic task. Click any card to open the tool.
Find My IP Address
Instantly see your public IPv4 and IPv6 address, your ISP name, and estimated location. Useful for VPN verification, remote access setup, and troubleshooting.
WHOIS Lookup
Look up the full registration record for any domain — who owns it, when it was registered, when it expires, and which registrar manages it.
Domain Checker
Check whether a domain name is available to register across multiple TLDs (.com, .net, .org, .io, and more) in real time before you commit.
DNS Lookup
Query DNS records for any domain — A, AAAA, MX, TXT, CNAME, NS, and more. Essential for verifying email setups, SSL configurations, and domain propagation.
Real-World Use Cases
Verify Your VPN
After connecting to a VPN, use Find My IP to confirm your IP has changed and the location shown is the VPN server, not your real location.
Research a Domain Before Buying
Before purchasing a domain, run WHOIS to check if it's owned, when it expires, and whether it's available to acquire or will drop soon.
Debug Email Delivery
Use DNS Lookup to verify SPF, DKIM, and DMARC TXT records — the most common cause of emails landing in spam folders.
Check DNS Propagation
After updating nameservers or DNS records, use DNS Lookup to verify that your changes have propagated to the public DNS system.
Launch a New Website
Use Domain Checker to find the perfect available domain, then WHOIS to ensure similar domains aren't trademarked or already taken.
Investigate Suspicious Domains
Security researchers and admins use WHOIS and DNS Lookup to investigate domain ownership and infrastructure behind questionable websites.
How These Tools Work
- 1
Open any tool
Click the tool card above. No sign-up form, no loading screen — it's instant.
- 2
Enter your query (if needed)
For WHOIS, DNS, and Domain Checker, type a domain name. For Find My IP, results appear automatically.
- 3
Get your results instantly
Results are fetched in real time and displayed clearly with all relevant technical fields explained.
Privacy & Data Policy
We don't log your IP address queries or store your search history
WHOIS and DNS queries are made server-side but not stored or linked to you
No account or personal information is ever required
Results are displayed only to you and never shared with third parties
Frequently Asked Questions
What is my public IP address, and how is it different from my local one?↓
Your public IP is the address your ISP assigns to your connection, and it is what the rest of the internet sees when you visit a site. Your local IP — usually something like 192.168.x.x — is handed out by your own router and only means anything inside your home or office network. The Find My IP tool shows the public one, along with the approximate location and network operator that others can infer from it.
Are WHOIS results always accurate?↓
They come straight from registrar databases, so the registration and expiry dates are reliable. Ownership details often are not: most registrars now apply privacy protection by default, replacing the real name, address, and email with proxy values. GDPR redaction removes much of what remains for domains registered in Europe, so an empty-looking record usually means the data is hidden rather than missing.
How long does DNS propagation take?↓
Anywhere from a few minutes to about 48 hours, governed by the TTL value on the record you changed. Resolvers around the world cache the old answer until that TTL expires, which is why a site can look updated to you and unchanged to someone else. Lowering the TTL a day before a planned migration shortens the window considerably.
Can I check if a domain is available to buy?↓
Yes. The Domain Checker queries a range of TLDs at once and reports which are unregistered right now. Availability is a live answer rather than a reservation, so a name that shows as free can be taken by someone else minutes later — register it with a registrar promptly if it matters.
Do these tools run in my browser like the rest of the site?↓
No, and this is the one category where they cannot. WHOIS, DNS, and domain availability all require queries to registry and nameserver infrastructure that a browser is not permitted to contact directly, so the lookup is performed by our server on your behalf. The domain or IP you enter is therefore sent to us. We do not build profiles from those lookups, but it is a meaningful difference from the file-based tools elsewhere on Mavertex, which genuinely never transmit anything.
Why does a DNS lookup here show different records than my computer does?↓
Because you are asking different resolvers. Your machine queries whichever DNS server your network or VPN configured, and that server may still be serving a cached copy. This tool queries authoritative nameservers, so it tends to show the current truth before your local resolver catches up.