5,595 .com names use “521”.
1 new ones were added on 5 Nov, 15 dropped and 5 came back. That’s 80% fewer than the day before. Check the trend, see what buyers pair it with, then register an open name below.
Let go by most owners 32% of the 328 .com names with “521” added 22 Jun to 1 Aug 2025 were still with their owner a year later. All new names: 48%.
Of 123 new .com names since 12 Oct: 0% for sale, 12% getting a website
New and dropped “521” names per day
New, upDropped, down23 Oct – 5 Nov · tap a barMost paired with
Open names with “521” · .com · open today · tap a name to break it down, to save it
Find more in the generator →Exact match
Every extension anyone can register, like .shop and .app · 5 Nov 2026The names with “521”
.com names · 5 Nov 2026Of 134 new .com names in 30 days: 100% have digits, 2% have hyphens and 0% have 20 or more characters.
By extension
Active names · new / dropped in 7 daysHow many .com domains contain “521”?
As of 5 Nov 2026, 5,595 .com names contain the word “521”, <0.01% of all 168,656,927 .com names. That puts it at #10,937 of the 244,418 words we track.
Over the last 7 days, 54 new “521” names were added, 22 came back and 63 were dropped, for a net +13. Its biggest day on record: 24 Feb 2026, with 42 new names.
Want your own? The generator checks every “521” combination against all 169 million .com names, plus .net, .org and .xyz when you pick them, and shows you the open ones in under a second. Have a name already? Break down 521.com or any other name: the demand for each word, the risks and the open names next to it.
We count “521” only where it stands as a whole word. 521shop.com counts; a name that just happens to contain those letters inside another word doesn’t. Count every name with the letters “521”. How we count.
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The Domaintile Weekly shows how “521” moved in new .com names, next to the week’s trending words and 5 open .com names.
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