I'm trying to register a couple of .com domains for a small project, but I'm nervous that repeatedly searching for them could cause a registrar or another party to register the names first or raise the price. I've heard mixed stories about search boxes logging domain queries, so I'd rather use a careful workflow. Should I start with WHOIS or RDAP, use a command-line tool, check DNS, or go straight to a particular registrar? I'm looking for practical advice from people who register domains regularly.
4 Answers
Use ICANN’s lookup service, which is the modern replacement for WHOIS, to check the registration status. Once you find a name you want, register it promptly through a reputable registrar rather than leaving it in a search history for weeks.
Cloudflare and Porkbun are commonly used options with straightforward pricing. In my experience, checking names there hasn’t caused the prices to change, though no personal experience can guarantee what every registrar does. The practical advice is to choose a trusted registrar and complete the purchase when you’re ready.
Don’t use DNS tools such as dig to determine availability. A domain can be registered without having any DNS records, so an NXDOMAIN response only means there’s no published DNS data. WHOIS or RDAP is the better check, although registration databases can briefly lag behind a new registration.
There isn’t solid evidence that ordinary searches reliably cause domains to be stolen. Some apparent cases may be domain tasting, temporary registrations, database delays, or coincidence. Still, it’s sensible not to search through questionable promotional sites, avoid unnecessary bulk searches, and register the name soon after confirming it’s available.

Cloudflare’s domain search is pretty simple, but I usually do an RDAP or WHOIS lookup first and then register through Cloudflare if the name still looks available.