TLD Notes

Field Guide to Domains

Field Guide to Domains — A TLD Explorer

This site is an observational record and does not endorse any specific domain.

.com

Classical Era (–2010)

The default choice across all industries. Short names are nearly exhausted, and premium aftermarket trading is the norm.

Observer's Note

This species is so dominant that it defines the evolutionary pressure on all others. "Because .com was taken" is the single greatest catalyst for the birth of new species.

Vibe Tags

Standard Highest Trust SEO Advantage Hard to Get

Observed Specimens

Domain choices shown here reflect each organization's own decisions and are not endorsements by this site.

stripe.com Stripe
Finance / FinTech

Online payment infrastructure. Rapid growth through developer-friendly APIs.

In the trust-critical payments space, the reliability of .com is essential.

notion.com Notion
SaaS / Web Services

All-in-one workspace tool.

Originally used notion.so, then migrated to .com as it grew. A textbook example of .com gravity.

shopify.com Shopify
E-Commerce / Retail

E-commerce platform empowering small and medium businesses to sell online.

As an e-commerce backbone, consumer trust is paramount. A .com-only territory.

airbnb.com Airbnb
Travel / Hospitality

Accommodation marketplace, expanding into experiences.

A global consumer service spread by word of mouth — a memorable .com is essential.

replit.com Replit
Dev Tools / OSS

Browser-based IDE with integrated AI code completion.

Previously used repl.it. A classic pattern of migrating to .com after growth.

midjourney.com Midjourney
AI / ML

AI image generation service, accessed via Discord.

An AI company that chose .com over .ai — demonstrating .com gravity for consumer services.

slack.com Slack (Salesforce)
SaaS / Web Services

Business messaging tool. Part of Salesforce.

The quintessential enterprise SaaS .com. Slack's punchy name pairs perfectly with .com.

vercel.com Vercel
Dev Tools / OSS

Frontend deployment platform. Creator of Next.js.

Developer-facing yet chose .com over .dev. Prioritizing platform-scale presence.

openai.com OpenAI
AI / ML

Creator of ChatGPT and GPT series. AI research company.

The leading AI company chose .com over .ai. Consumer reach trumps industry signaling.

figma.com Figma
Design / Creative

Collaborative UI design tool. Browser-based.

figma.com, not figma.design. Even for design tools, .com wins when targeting the mass market.

View all specimens for this TLD →

Observed Habitats

SaaS / Web Services E-Commerce / Retail Finance / FinTech Media / Publishing Startups Healthcare / Medical Gaming / Entertainment Food / Dining

Prevalence

95

⚠ Caution

Short names cost tens of thousands to millions on the aftermarket. A prime target for typosquatting.

Snapshot: 2025-12