About TransitPacket

TransitPacket started the way most useful tools do: out of actually needing it. I've spent 20+ years doing hands-on networking and cybersecurity work — the kind where you're tracking down why a client's DNS is quietly misconfigured, checking whether a certificate is about to expire before it becomes an emergency, or explaining to someone why their site's security warning isn't actually about being "hacked."

Along the way, I got tired of bouncing between five different tools — some cluttered with ads, some slow, some clearly abandoned — just to run the same handful of checks I run on nearly every engagement. TransitPacket is that toolkit, built the way I actually wanted it: fast, no clutter, and shaped by real day-to-day diagnostic work rather than a guess at what network professionals might want.

Who this is for

If you're a freelance IT consultant, a small MSP, or anyone doing hands-on networking or systems work who needs a fast, reliable answer — DNS records, domain registration details, certificate status, HTTP headers, IP ownership, ASN details — without digging through five different sites, this is built for you.

What's here today

DNS Lookup, WHOIS Lookup, SSL Checker, HTTP Headers Checker, Reverse DNS Lookup, IP Lookup, and ASN Lookup — plus practical, checklist-style guides for using them in real client work. More tools get added as they prove useful in actual diagnostic work, not speculatively.

— Marcelo, Founder