How Many .com Domains Are Registered?

The Headline Number

163.6 million .com domains were registered as of March 31, 2026, according to Verisign's own investor filings — the registry operator for .com and the single most authoritative source for this number. That's up from roughly 159.6 million at the end of 2023, and it exceeds the prior all-time high of 161.6 million set in Q1 2023. Combined with .net (12.4 million), the two extensions Verisign operates total 176.1 million domains, up 3.7% year-over-year (Verisign DNIB, Apr 2026).

New .com/.net registrations hit 11.5 million in Q1 2026 alone, versus 10.1 million in the same quarter a year earlier — the highest quarterly new-registration volume since 2021, which Verisign's own earnings call attributed to AI-driven demand (Verisign Q1 2026 earnings call).

The Whole Market: 392.5 Million Domains

Across every top-level domain combined — .com, .net, every country-code extension, every new gTLD like .ai or .app — the internet had 392.5 million registered domains at the end of Q1 2026, up 1.4% quarter-over-quarter and 6.5% year-over-year (Verisign DNIB).

New gTLDs (like .ai, .app, .shop) grew 31.3% year-over-year to 49.6 million registrations — nearly 8x .com/.net's growth rate. Country-code extensions (ccTLDs) now account for more than a third of all global registrations, growing 3.4% year-over-year (SIDN Global Domain Report 2026). .ai specifically crossed 1 million registrations in January 2026, up 67% year-over-year (Domain Name Wire).

The Trend Line Isn't a Straight Line Up

Registration grew steadily through the 2010s, surged during the 2020 pandemic e-commerce boom, then plateaued and actually declined from 2022 into 2023 as speculative registration cooled and renewal-driven churn caught up. It took until 2026 to exceed the 2023 peak — a rebound Verisign explicitly ties to AI-driven demand, not a smooth continuous climb (sourced from consecutive Verisign DNIB releases).

The Scarcity Numbers

If you're hoping for a short, clean .com: 100% of all 17,576 possible 3-letter .com combinations are registered, and 100% of all 456,976 possible 4-letter combinations are registered too. An estimated majority of those 4-letter names are held by speculators and available only on the resale aftermarket, not through direct registration (WhoAPI). Five-letter .coms (11.88 million possible combinations) aren't fully exhausted, but most pronounceable, dictionary-adjacent combinations are long gone — what remains skews toward strings that don't read as real words.

The Churn Counterpoint: "Taken" Isn't Forever

Scarcity at the short end doesn't mean the overall pool is frozen. Roughly 60,000 to 85,000 .com/.net domains become available every day through the registry's non-renewal drop process (Nameslink drop-catching guide). Verisign's own Q1 2026 renewal rate was 76.3% (Domain Name Wire) — meaning close to a quarter of domains in any given cohort don't renew each cycle, feeding a constant, quantifiable stream of newly-available names back into circulation.

Is .com Even Still Required?

Here's the tension worth sitting with: .com just hit a new all-time high in raw registrations, and its relative share of the domain market is shrinking at the same time. New gTLDs are growing roughly 8x faster than .com/.net combined, and ccTLDs already represent over a third of the global market. .com isn't disappearing — but "you need a .com to look credible" is becoming less of a technical requirement and more of a legacy assumption, especially in categories (AI, developer tools) where an alternative extension now reads as a deliberate signal rather than a compromise.

What This Means for Naming Your Business Today

Short, keyword-match .com names are functionally extinct — the 3- and 4-letter space has been fully claimed for years. The realistic paths left are: a coined or invented brandable name at any length, a longer descriptive name that's still open because nobody wanted the exact phrase, or accepting a strong alternative extension where it fits the category (.ai for AI products, .io for dev tools). An AI naming tool that checks live availability across a large candidate pool solves the practical problem this data describes — you're not going to stumble onto a clean short .com by guessing.

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