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downzero - local, encrypted firearm and NFA tracking — 18 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Arms And Ammunition →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
2ndshot.org ↗	67 match 1 shared topics	2ndShot — Buy, Sell & Trade Firearms Locally	en	arms-and-ammunition	robots llmsaihumans	emailphone	none
2atracker.com ↗	67 match 1 shared topics	2ATracker — Gun Inventory App with Zero-Knowledge Encryption	en	arms-and-ammunition	robotsllmsaihumans	emailphone	none
bringacase.com ↗	66 match 1 shared topics	Bring A Case \| Curated Firearms Auctions	en	arms-and-ammunition	robotsllmsaihumans	emailphone	none
5shotfirearms.com ↗	66 match 1 shared topics	5 Shot Firearms	United States~ en	arms-and-ammunition	robotsllmsaihumans	emailphone	full · 13
onlinefirearmshop.com ↗	66 match 1 shared topics	Tactical Gear, Firearm Accessories and Apparel. - onlinefirearmshop.com	en	arms-and-ammunition WordPress WooCommerce	robotsllmsaihumans	emailphone	none
fantomfirearms.com ↗	65 match 1 shared topics	Fantom Firearms	en	arms-and-ammunition	robotsllmsaihumans	emailphone	none
2apos.com ↗	65 match 1 shared topics	EMS Zero Firearms \| Firearms-Friendly Credit Card Processing & Payment Solutions	United States~ en	arms-and-ammunition	robotsllmsaihumans	emailphone	none
barnardfirearms.com ↗	65 match 1 shared topics	Barnard Firearms LLC \| Branson Gun Store \| $15 FFL Transfers \| Ozarks Missouri	United States~ en	arms-and-ammunition	robots llmsaihumans	emailphone	none
keelerfirearms.com ↗	65 match 1 shared topics	Keeler Firearms	en	arms-and-ammunition WordPress	robotsllmsaihumans	emailphone	none
canik.com ↗	65 match 1 shared topics	CANiK — Superior Firearms	United States~ en	arms-and-ammunition Shopify	robotsllmsaihumans	emailphone	none
ssfirearms.com ↗	65 match 1 shared topics	S & S Firearms Home	en	arms-and-ammunition	robotsllmsaihumans	emailphone	none
historicalfirearms.info ↗	64 match 1 shared topics	Historical Firearms	en	arms-and-ammunition Tumblr	robotsllmsaihumans	emailphone	none
falesguns.com ↗	64 match 1 shared topics	Fales Guns \| Coral Springs Firearms, FFL Transfers & Accessories	United States~ en	arms-and-ammunition	robotsllmsaihumans	email phone	partial · 8
repetellc.com ↗	64 match 1 shared topics	Repete LLC: Firearms & Accessories Sales \| Repete, LLC	en	arms-and-ammunition	robotsllmsaihumans	emailphone	none
2acguns.com ↗	64 match 1 shared topics	2AC Guns \| custom firearms	en	arms-and-ammunition Wix	robots llmsaihumans	email phone	none
one-77-six.com ↗	64 match 1 shared topics	One-77-Six Firearms & Supply Co.	United States~ en	arms-and-ammunition	robotsllmsaihumans	email phone	none
srifirearms.com ↗	64 match 1 shared topics	SRI Firearms	en	arms-and-ammunition WordPress	robots llmsaihumans	emailphone	none
acworthgunsga.com ↗	64 match 1 shared topics	Acworth Guns Store \| Firearms & Accessories in Acworth GA	en	arms-and-ammunition WordPress WooCommerce	robotsllmsaihumans	emailphone	partial · 8

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.