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Guide to Key Date U.S. Coins - Key Date Coins — 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 Stamps And Coins →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
eisenhowerdollarguide.com ↗	67 match 1 shared topics	Eisenhower Dollars (1971-1978) \| Complete Coin Guide	en	stamps-and-coins WordPress	robotsllmsaihumans	emailphone	none
2dollarcoin.com ↗	66 match 1 shared topics	Loose Change Coins	en	stamps-and-coins Shopify	robots llmsaihumans	emailphone	none
garvincoins.com ↗	66 match 1 shared topics	Garvin Coins: Rare Coin Dealer	en	stamps-and-coins Weebly	robotsllmsaihumans	emailphone	none
providencecoingroup.com ↗	66 match 1 shared topics	Providence Coin Group · Rare Coins & Estate Services · Boston	United States~ en	stamps-and-coins	robotsllmsaihumans	emailphone	none
hsncoinshop.com ↗	65 match 1 shared topics	Collectible Coins, Commemoratives & Coin Market	en	stamps-and-coins WordPress WooCommerce	robotsllmsaihumans	emailphone	none
2rookscoins.com ↗	65 match 1 shared topics	Greek coins \| Cyprus \| 2rookscoins.com	en	stamps-and-coins Wix Wix Stores	robots llmsaihumans	emailphone	none
austincoins.com ↗	65 match 1 shared topics	Austin Rare Coins & Bullion \| Buy & Sell Gold, Silver, Rare & Ancient Coins	United States~ en	stamps-and-coins	robotsllmsaihumans	emailphone	none
vpukcoins.com ↗	65 match 1 shared topics	VPUKcoins \| Buy Ancient Coins	en	stamps-and-coins Shopify	robots llmsaihumans	emailphone	none
24karatgoldcoin.com ↗	65 match 1 shared topics	Sell 24K Gold Coins for Instant Cash Today \| 24karat Gold Coin	en	stamps-and-coins	robotsllmsaihumans	emailphone	none
aussiecoins.net ↗	65 match 1 shared topics	Coins and Australia \| Australian coins, banknotes, values, price guide, errors and varieties	en	stamps-and-coins	robotsllmsaihumans	emailphone	partial · 8
360coingroup.com ↗	65 match 1 shared topics	We Buy and Sell Coins and Bullion \| 360 Coin Group	United States~ en	stamps-and-coins Squarespace Magento	robotsllmsaihumans	emailphone	none
catoctinrarecoin.com ↗	65 match 1 shared topics	Crabby Coins \| Online Coins and Collectibles Store	en	stamps-and-coins Wix Wix Stores	robots llmsaihumans	emailphone	none
necoinexchange.com ↗	65 match 1 shared topics	Sell Coins Rhode Island \| Coin Shop RI \| Sell coins Cranston\|	en	stamps-and-coins Weebly	robotsllmsaihumans	emailphone	none
canadiancoinnews.com ↗	65 match 1 shared topics	Canadian Coin News - Canada's Premier Coin Magazine	en	stamps-and-coins Weebly	robotsllmsaihumans	emailphone	none
24karatgoldcoin.net ↗	65 match 1 shared topics	Sell 24K Gold Coins for Instant Cash Today \| 24karat Gold Coin	en	stamps-and-coins	robotsllmsaihumans	emailphone	none
donrinkorrarecoins.com ↗	65 match 1 shared topics	Rare Coins, Paper Money, Bullion & Watches \| Rinkor Rare Coins	en	stamps-and-coins	robotsllmsaihumans	email phone	none
howtobuyandsellcoins.com ↗	64 match 1 shared topics	Home \| How To Buy And Sell Coins	en	stamps-and-coins Wix	robots llmsaihumans	emailphone	none
doubleddiecoins.com ↗	64 match 1 shared topics	Doubled Die Coins Explained: Penny Varieties, Obverse vs Reverse, and Wexler's Catalog	en	stamps-and-coins	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.