Status: Draft
Owner review 21, lane W: web and registration plan for Dabusi / 다붓이
Date: 2026-10-14. Nothing was bought, registered or contacted. All checks are public pages and registry lookups made with curl, 6 s or more apart per service. Every query is listed in "Re-runnable queries" so a 변리사 or the owner can repeat it.
Verdict
- Registrable today:
dabusi.app,.io,.co,.kr,.co.kr,.club,.tennis,.team,.ai,.so,.gg,.me, plusgetdabusi.com,dabusiapp.com,joindabusi.com, and both Korean IDNs. - Taken:
dabusi.com(since 2010, a live Chinese server vendor) anddabusi.net(since 2013, Bizcn registrar, nameservers CNMSN). - Handles: the bare
dabusiis taken on YouTube, GitHub, Naver Cafe and TikTok.dabusiappis free on every platform that could be read. - Stores: no app named Dabusi or 다붓이 on the App Store (US, KR, JP) or Google Play. One adjacent Play app, 다붓 (Dabut), a messenger.
- Company name: not checked.
1. Domains
Endings (registry check, prices from Porkbun's public API on 2026-10-14)
Price is the first-year registration / renewal in USD. A premium flag was not returned by any registry lookup or by Porkbun's API; none seen.
| Name | Registry answer | Registry (RDAP or whois) | Price new / renew |
|---|---|---|---|
| dabusi.com | taken 2010-08-11, expires 2035 | Verisign RDAP | 11.08 / 11.08 (not for sale at that price) |
| dabusi.app | free | Google Registry RDAP | 8.75 / 14.93 |
| dabusi.io | free | whois.nic.io | 28.12 / 51.80 |
| dabusi.co | free | whois.registry.co | 15.76 / 31.20 |
| dabusi.kr | free | KISA RDAP | not on Porkbun; Korean registrar only, not priced |
| dabusi.co.kr | free | KISA RDAP | not priced; one aggregator lists GoDaddy at about 21.99 (domainoffer.net). Needs a Korean business number or a trustee |
| dabusi.net | taken 2013-11-17, expires 2030 | Verisign RDAP | 12.52 / 12.52 (taken) |
| dabusi.club | free | rdap.nic.club | 4.12 / 15.96 |
| dabusi.tennis | free | Identity Digital RDAP | 67.46 / 67.46 |
| dabusi.team | free | Identity Digital RDAP | 4.63 / 32.44 |
| dabusi.ai | free | Identity Digital RDAP | 82.70 / 82.70 (two-year minimum at some sellers) |
| dabusi.so | free | whois.nic.so | not on Porkbun; not priced |
| dabusi.gg | free | whois.gg | 51.80 / 51.80 |
| dabusi.me | free | whois.nic.me | 17.27 / 17.27 |
Controls: a made-up name (zzqxjvk9abc) returned "free" on the same servers; google.co, google.so, google.gg, google.kr and xn--3e0b707e.kr (한국.kr) returned records. So "free" is a real signal for these registries.
The .gg registry only allows Guernsey-linked registrants in some cases; it was not verified for this lane. .co.kr needs a local registrant; .kr is open to foreigners via a trustee at some registrars (GoDaddy help page says trustee service is included).
Variants and Korean IDNs
| Name | Result |
|---|---|
| getdabusi.com | free (Verisign 404) |
| dabusiapp.com | free |
| joindabusi.com | free |
| dabusi.app | free |
다붓이.com = xn--2j1bq6r11h.com | free (Verisign 404; punycode from Python '다붓이'.encode('idna')) |
다붓이.kr = xn--2j1bq6r11h.kr | free (KISA 404; control 한국.kr = xn--3e0b707e.kr returned 200) |
IDNs are worth holding defensively only; email and most apps handle them poorly.
The .com
- Holder: registrar eName Technology Co., Ltd. (Chinese registrar). Created 2010-08-11, last changed 2026-03-29, status client delete/transfer prohibited. Nameservers
F1G1NS1/2.DNSPOD.NET. Registrant is privacy-masked (RDAP shows only the registrar). - Site:
https://dabusi.com/is a live commercial site titled "打不死-高防服务器供应商" (anti-DDoS servers, cloud servers, bare metal, hosting, domain registration, ICP filing help). Links to a store, login and register pages. DNS: CNAMEdabusi.com.w.cdngslb.com(Alibaba CDN), MXmxdomain.qq.com. The name 打不死 reads "dabusi" in pinyin ("can't be beaten to death"), so the holder uses it as a brand, not a parked domain. - For sale: no sale wording on the homepage (searched for 出售, 域名转让, "for sale"; none), no listing seen. It looks like an active brand, not for sale.
- Approach plan (do not contact anyone yet):
- Treat it as unavailable and launch on
dabusi.app(orgetdabusi.com) first. - If the owner still wants it, use a domain broker (Sedo, Atom, or a broker such as GoDaddy Domain Broker) so the buyer is anonymous; set a ceiling before any bid. Expect a business with a live brand to refuse or price it far above 1,000 USD (my estimate, K).
- Check once a year with the Verisign RDAP query below; a lapse would show as 404 or an expiry date drift. Expiry is 2035, so waiting is not a plan.
- A UDRP/trademark route is weak: the holder's use is legitimate, in good faith and predates any Dabusi mark.
- Treat it as unavailable and launch on
2. Handles
How each site behaves for a made-up handle zzqxjvk9abc decides what the result means.
| Platform | Made-up handle behaviour | dabusi | dabusiapp | Weight |
|---|---|---|---|---|
| X | 404 | free (404) | free (404) | medium |
YouTube @ | 404 | taken (200, channel "Dabusi", prank-video channel) | free (404) | medium |
| TikTok oembed | 400 "Something went wrong" | taken (200 JSON, a creator profile) | free (400, repeat after one 503) | medium |
| GitHub | 404 | taken (user Dabusi, id 46278091; users and orgs share names) | free (404, also api.github.com/orgs/) | strong |
| Naver Cafe | same 4.4 KB error page for any unknown id | taken (cafe "다붓하다", club id 25344245) | free (same page as made-up) | medium |
| Naver Blog | 404 | free (404) | free (404) | medium |
| LinkedIn company | 404 | free (404) | free (404) | weak (anonymous view may 404 real pages) |
| Discord invite API | Unknown Invite 404 | no vanity invite (404) | no vanity invite | weak: vanity links need a boosted server |
| 200 shell, 633 KB, no usable title | unreadable | unreadable | none: same page for any name | |
| Threads | 200 shell | unreadable | unreadable | none |
| 400 for any name | unreadable | unreadable | none | |
| Kakao Channel | 200 shell with JSON Not Found for pf.kakao.com/_<id> and pf.kakao.com/<id> | same | same | none: channel URLs are random ids; the search id is only visible inside Kakao |
| Band | 200, 16 KB for any name | unreadable | unreadable | none |
| 403 on json; old.reddit redirects to a login wall | unreadable | unreadable | none | |
| Medium, Brunch | Cloudflare challenge, 403/302 | unreadable | unreadable | none |
Reading: @dabusiapp is clear everywhere it could be tested, so use it as the common handle. The bare dabusi has three real owners (YouTube, GitHub, TikTok) plus Naver Cafe; do not plan on it. Instagram, Threads, Facebook, Kakao, Band, Reddit, Medium and Brunch must be checked by hand in the app or in a logged-in browser, which this lane did not do. Kakao channel names (display names) are not unique; the search id is.
3. Stores
| Store | Query | Result |
|---|---|---|
| App Store US | iTunes Search Dabusi, software | 10 fuzzy hits (Dabusiness, Darbuka, Daber ...), none named Dabusi |
| App Store US | 다붓이 | 0 |
| App Store KR, JP | Dabusi, 다붓이 | 0 each (controls 토스 in KR and LINE in JP returned 3, so the API works) |
| Google Play | search Dabusi | no app named Dabusi (fuzzy hits only); com.dabusi.app and com.dabusi details pages return 404 |
| Google Play | search 다붓이 | no app named 다붓이. Adjacent: "다붓 (Dabut) - 번호 없이 연락하는 메신저" (a phone-number-free messenger). Same stem, different word; note it for the 변리사 since we also ship chat |
iTunes search does not list unreleased or reserved app records, so absence proves only that nothing is published.
App Store Connect reservation: an app name is reserved when you create the app record (My Apps > New App) with the exact name, the bundle ID and the SKU; Apple holds it for the account (a name is unique across the store; Apple's docs say a reserved name that sits unused may be released after a long period, which I did not verify here). Requires the paid Apple Developer Program (99 USD/yr, K) and an organisation or individual account in good standing. Create the record with the display name Dabusi and add 다붓이 as the Korean localised name. Google Play has no name reservation; the name is claimed on first publish of a draft app (the Play Console lets you create an app and set its name before release; I did not verify whether it blocks others). The bundle ID app.dabusi can only be used once dabusi.app is registered.
4. Company name
Not checked. The 인터넷등기소 상호 search needs an interactive session (form and image check); not attempted from curl. A 변리사 or the owner can search 다붓이 under 상호 (법인) at iros.go.kr before incorporating or filing the business registration at 홈택스.
5. Registration checklist, in priority order
dabusi.appat Porkbun or Cloudflare: 8.75 first year, 14.93 renewal. HSTS-preloaded, HTTPS only; the primary address. Addgetdabusi.com(11.08/yr) as the email-friendly address and redirect.dabusiapp.com(11.08) andjoindabusi.com(11.08): defensive; optional. Skip if the budget is tight;getdabusi.comis enough.- Handle
@dabusiappon X, YouTube, TikTok, GitHub (org), Naver Blog and (by hand) Instagram, Threads, Facebook, Reddit, Medium, Brunch, Band, LinkedIn. Free. Do this the same day as the domain, since handle squatters watch trademark filings. - App Store Connect record named Dabusi (and 다붓이 localised): 99 USD/yr if no account yet; no extra cost per name.
- Kakao Channel (카카오톡 채널) named 다붓이 with a search id such as
dabusiordabusiapp: free, needs a Kakao Business account; business verification is needed for a Pro channel and for Alimtalk later. dabusi.kr/dabusi.co.krat Gabia or another Korean registrar: price not checked, likely 15,000 to 30,000 KRW/yr (my estimate);.co.krneeds a Korean business registration number.- Cheap defensive endings:
dabusi.club4.12 first year then 15.96,dabusi.team4.63 then 32.44; skip.tennis(67.46/yr),.ai(82.70/yr),.gg,.iounless a reason appears..co15.76 then 31.20 is a reasonable single defensive pick. - Korean IDNs
다붓이.comand다붓이.kr: only if the owner wants a Korean-script address; low priority.
Estimated first-year cost for the core set (1, 2, 3, 4, 5, plus .co): about 8.75 + 11.08 + 11.08 + 15.76 = about 47 USD, plus 99 USD for the Apple program if not already held.
Re-runnable queries
Replace <name> with the label. No whois binary is installed, so port 43 is a raw socket.
.com,.net:curl -sL https://rdap.org/domain/<name>.com(redirects to Verisign; 200 taken, 404 free)..app,.club,.tennis,.team,.ai: same URL; it redirects to the registry's own RDAP..kr,.co.kr,xn--2j1bq6r11h.kr:curl -sL https://rdap.kisa.or.kr/domain/<name>.kr..io,.co,.so,.gg,.me:printf '<name>.io\r\n' > /dev/tcp/whois.nic.io/43(servers:whois.nic.io,whois.registry.co,whois.nic.so,whois.gg,whois.nic.me). "Domain not found", "does not exist", "No Object Found" or "NOT FOUND" means free..comhomepage:curl -sL -A "Mozilla/5.0" https://dabusi.com/; DNS:https://dns.google/resolve?name=dabusi.com&type=A(andMX).- Prices:
curl -s -X POST https://api.porkbun.com/api/json/v3/pricing/get. - Handles:
curl -sL -A "<browser UA>" -w '%{http_code}' https://x.com/<handle>,https://www.youtube.com/@<handle>,https://github.com/<handle>,https://api.github.com/orgs/<handle>,https://blog.naver.com/<handle>,https://cafe.naver.com/<handle>(decode EUC-KR; a real cafe shows its name in<title>),https://www.linkedin.com/company/<handle>,https://discord.com/api/v9/invites/<handle>, TikTokhttps://www.tiktok.com/oembed?url=https://www.tiktok.com/@<handle>(400 free, 200 taken, 503 retry). - Stores:
curl -s "https://itunes.apple.com/search?term=<term>&country=<us|kr|jp>&entity=software&limit=25";curl -sL -A "Mozilla/5.0" "https://play.google.com/store/search?q=<term>&c=apps&hl=en".
Limits
- Registry "free" is a snapshot; a name can be registered between the check and the purchase, and some registrars reserve or premium-price names that the registry shows free. No premium flag appeared, but only the registrar's cart is authoritative.
- Prices are Porkbun's public list; Cloudflare sells at cost and may differ slightly. Aggregator pages disagreed on
.ioand.co, so they were not used. - Handle results are weak evidence: a platform can return the same answer for reserved, banned or suspended names.
- Not checked: Instagram, Threads, Facebook, Kakao, Band, Reddit, Medium, Brunch (no public signal); the Korean company-name registry; ICP or Chinese-side ownership of
dabusi.combeyond the homepage.