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Ultrafounders alternatives & similar sites

Ultra Founders — 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 Startups →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
founders-passion.net ↗	70 match 1 shared topics	Root \| Founders Passion	de	startups WordPress WooCommerce	robotsllmsaihumans	emailphone	none
founders-passion.org ↗	70 match 1 shared topics	Root \| Founders Passion	de	startups WordPress WooCommerce	robotsllmsaihumans	emailphone	none
founderspassion.net ↗	70 match 1 shared topics	Root \| Founders Passion	de	startups WordPress WooCommerce	robotsllmsaihumans	emailphone	none
founderspassion.org ↗	70 match 1 shared topics	Root \| Founders Passion	de	startups WordPress WooCommerce	robotsllmsaihumans	emailphone	none
founderzone.ai ↗	68 match 1 shared topics	Wartung · founderzone.ai	de	startups	robotsllmsaihumans	emailphone	none
foundersphere.io ↗	66 match 1 shared topics	Foundersphere - Startseite - Foundersphere	de	startups WordPress WooCommerce	robotsllmsaihumans	emailphone	none
foundersphere.net ↗	66 match 1 shared topics	Foundersphere - Startseite - Foundersphere	de	startups WordPress WooCommerce	robotsllmsaihumans	emailphone	none
founderblocks.io ↗	65 match 1 shared topics	FounderBlocks - Startup Studio	de	startups	robotsllmsaihumans	emailphone	none
founders-bay.io ↗	65 match 1 shared topics	Accelerator für den ländlichen Raum \| Founders Bay	Germany~ de	startups	robots llmsaihumans	emailphone	none
founder-forge.net ↗	64 match 1 shared topics	Founder Forge \| Wo Ziele geschmiedet werden	de	startups	robotsllmsaihumans	emailphone	none
founder-story.com ↗	62 match 1 shared topics	Founder Story - Entschlüssele die Geheimnisse von 7-stelligen Online-Businesses	de	startups	robotsllmsaihumans	emailphone	none
doobox.org ↗	60 match 1 shared topics	doobox ag – Tools für bootstrapped Startups – Gründung AG und GmbH, Growthhacking und Business Development für Gründer	de	startups WordPress Gumroad	robotsllmsaihumans	emailphone	none
7euro.cash ↗	60 match 1 shared topics	7€ Cash-Projekt – Kufstein	de	startups WordPress	robotsllmsaihumans	emailphone	none
aleif.studio ↗	60 match 1 shared topics	A:LEIF	de	startups	robotsllmsaihumans	emailphone	none
lightsite.studio ↗	60 match 1 shared topics	LightsiteStudio - Spitzenunternehmen auf die Überholspur bringen	de	startups	robotsllmsaihumans	emailphone	none
wasserburg.info ↗	60 match 1 shared topics	Startseite - Aktuell Bayern	de	startups WordPress	robots llmsaihumans	emailphone	none
web-3.ventures ↗	60 match 1 shared topics	nest³ Web3 - CoWorking, Event Spaces & Web3 Startup Incubator	de	startups	robots llmsaihumans	emailphone	none
web3grants.org ↗	60 match 1 shared topics	Web3 Grants: 1-Click Application	de	startups	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.