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gstack office-hours — Office hours with Garry Tan, in 5 minutes — 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
ideaproof.org ↗	64 match 1 shared topics	Validate Your Startup Idea in Weeks — Early Access	en	startups	robotsllmsaihumans	emailphone	none
ideacheck.org ↗	64 match 1 shared topics	IdeaCheck — Expert Feedback on Your Startup Idea	en	startups	robots llmsaihumans	emailphone	none
chatmina.com ↗	64 match 1 shared topics	Chatmina · the support stack for small SaaS teams	en	startups	robots llmsaihumans	emailphone	none
culturechampions.io ↗	64 match 1 shared topics	Culture Champions — Offsites for Venture-Backed Startups	en	startups	robotsllmsaihumans	emailphone	none
asquarebuiltthis.com ↗	64 match 1 shared topics	Asquared Ventures — We Build From Zero	en	startups	robotsllmsaihumans	emailphone	none
0dollarstartup.com ↗	64 match 1 shared topics	Ditch the Desks and Doors with 0 Dollar Startup	en	startups Lightspeed	robotsllmsaihumans	emailphone	none
5mht.com ↗	64 match 1 shared topics	Entrepreneurship & Personal Development « 5 Minute How To	en	startups WordPress WooCommerce	robotsllmsaihumans	emailphone	none
carrdstart.com ↗	64 match 1 shared topics	Carrd Startup Templates and Training	en	startups	robotsllmsaihumans	emailphone	none
5minutehowto.com ↗	64 match 1 shared topics	Entrepreneurship & Personal Development « 5 Minute How To	en	startups WordPress WooCommerce	robotsllmsaihumans	emailphone	none
categorystory.com ↗	64 match 1 shared topics	Category Story — By Josh Garofalo	en	startups	robotsllmsaihumans	emailphone	none
askcadence.io ↗	64 match 1 shared topics	The VoiceShop — Vocal Coaching for Startup Founders	en	startups	robots llmsaihumans	emailphone	none
id8.ai ↗	64 match 1 shared topics	Turn Your Ideas into Value with Id8ai	en	startups	robotsllmsaihumans	emailphone	none
ideas-that-died.app ↗	64 match 1 shared topics	Ideas That Died — A graveyard for failed startup ideas	en	startups	robotsllmsaihumans	emailphone	none
ideaforgeapp.net ↗	64 match 1 shared topics	IdeaForge — From Idea to Launch Plan in One Conversation	en	startups	robotsllmsaihumans	emailphone	none
ch-shipped.org ↗	64 match 1 shared topics	StartupHub - Connect with Innovative Startups	en	startups	robotsllmsaihumans	emailphone	none
cwacs.ai ↗	63 match 1 shared topics	Cloudy With a Chance of Startups \| Ritik Khatwani \| Substack	en	startups	robotsllmsaihumans	emailphone	none
ideacouncil.app ↗	63 match 1 shared topics	Stress-Test Your Startup Idea Before You Build	en	startups	robotsllmsaihumans	emailphone	none
miketelcide.com ↗	63 match 1 shared topics	Mike Telcide - Entrepreneur, Innovator, USSF Officer	en	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.