Question 1

What prefixes and suffixes do you check?

Accepted Answer

We check the most common SaaS naming patterns. Prefixes: get, try, use, go, run, meet, join, my, hey, hi, super, easy, quick, smart. Suffixes: ai, hq, app, hub, labs, studio, base, stack, kit, box, desk, ify, ly, io, team, crew. These are the patterns used by successful SaaS companies — not random AI-generated word mash.

Question 2

Which TLDs do you search?

Accepted Answer

We check availability across five TLDs popular with SaaS and startups: .com, .ai, .io, .co, and .so.

Question 3

How many domains do you check per search?

Accepted Answer

Each search checks over 150 domain combinations — 30 prefix/suffix variations across 5 TLDs, plus your exact keyword on each TLD.

Question 4

How does availability checking work?

Accepted Answer

We query domain registries directly to check availability in real-time. Results are cached briefly to keep searches fast.

Question 5

What do Active, Redirected, Parked, and Unreachable mean?

Accepted Answer

After checking availability, we categorize taken domains to help you spot potential opportunities: Active — The domain has a working website. Someone is actively using it. Redirected — The domain redirects to a different website. Often used to protect a brand or funnel traffic. Parked — The domain shows a placeholder page, often with ads or a "for sale" notice. These are typically owned by domain investors. Unreachable — No website responds at this domain. It's registered but not configured. Domains that aren't actively in use (parked, redirected, or unreachable) may be available for purchase directly from the owner — often through a marketplace link on the parked page or by contacting them via WHOIS.

Question 6

Is TLD Stack free?

Accepted Answer

Yes, completely free to use.

Question 7

How do you make money?

Accepted Answer

When you click through to register a domain, we earn a small referral fee from the registrar. It doesn't cost you anything extra.

Question 8

Why not just use GoDaddy or Namecheap's search?

Accepted Answer

Those tools are designed for checking a single domain you already have in mind. TLD Stack is built for exploration — enter one keyword and instantly see which naming patterns are actually available, without manually trying dozens of variations.

Question 9

Why did you build this?

Accepted Answer

Trying to find an available domain name when starting a business has become a hellscape. There's a business out there using every word in the dictionary, and most every .com is taken. The go-to-trick of adding prefixes, suffixes, or using alternative TLDs can still get you a good domain, but trying to find those alternatives is a pain in the ass. I was surprised to see there was no tool to make this process easier, so I built it.

Question 10

Can I request new prefixes, suffixes, or TLDs?

Accepted Answer

Yes — email me at the address below with suggestions.

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