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Bigboard alternatives & similar sites

BigBoard.com -- what you need to create a successful message board — 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 Social Networking →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
groups.io ↗	55 match shared topic	Groups.io \| Email Discussion Groups & Listserv Alternative	en	email	robotsllmsaihumans	emailphone	none
voy.com ↗	38 match shared topic	Free Message Boards and Online Forums at VoyForums!	en	social-networking	robotsllmsaihumans	emailphone	none
superbsolonetworks.com ↗	37 match shared topic	Superb Solo Networks	en	marketing-and-advertising	robotsllmsaihumans	emailphone	none
ko-fi.com ↗	32 match shared topic	Ko-fi \| Make money doing what you love	en	social-networking	robotsllmsaihumans	emailphone	partial · 8
skool.com ↗	32 match shared topic	Skool: Discover Communities or Create Your Own	en	social-networking	robotsllmsaihumans	emailphone	none
ning.com ↗	32 match shared topic	Create your own social network with the best community website builder - NING	en	social-networking WordPress	robotsllmsaihumans	emailphone	none
pinboard.in ↗	32 match shared topic	Welcome to Pinboard—Social bookmarking for introverts!	India en	social-networking	robotsllmsaihumans	emailphone	none
zora.co ↗	32 match shared topic	Zora — Post, discover, and trade what’s next	Colombia en	social-networking	robotsllmsaihumans	emailphone	none
madmimi.com ↗	32 match shared topic	Mad Mimi Email Marketing: Create, Send, And Track HTML Email Newsletters	en	email	robotsllmsaihumans	emailphone	none
linkedin.com ↗	28 match shared topic	LinkedIn: Log In or Sign Up	en	social-networking	robotsllmsaihumans	emailphone	none
fakechatapp.com ↗	33 match shared topic	Create fake WhatsApp and Messenger messages - FakeChatApp.com - FakeChatApp.com	Netherlands~ en	social-networking	robotsllmsaihumans	emailphone	none
fantime.com ↗	32 match shared topic	FanTime - Create content connect with fans	en	social-networking	robotsllmsaihumans	emailphone	none
ho.link ↗	32 match shared topic	One Link in Bio for Everything You Create \| Holink	en	social-networking	robotsllmsaihumans	emailphone	partial · 11
forum.cool ↗	32 match shared topic	Create a free forum on MyBB	en	social-networking	robotsllmsaihumans	emailphone	none
pinup.com ↗	32 match shared topic	Pinup - Sticky notes, corkboards, collaboration	en	social-networking	robotsllmsaihumans	emailphone	none
mybb.rocks ↗	32 match shared topic	Create a free forum on MyBB	en	social-networking	robotsllmsaihumans	emailphone	none
tiktok.com ↗	28 match shared topic	TikTok - Make Your Day	en	social-networking	robotsllmsaihumans	emailphone	none
strawpoll.com ↗	32 match shared topic	StrawPoll - Create a Poll in Seconds	Germany~ en	social-networking	robotsllmsaihumans	emailphone	none

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.