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Phobosplan alternatives & similar sites

The Phobos Plan — 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 Space And Astronomy →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
marscorp.app ↗	64 match 1 shared topics	Big Red Planet	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
theufoplanet.com ↗	64 match 1 shared topics	The UFO Planet - Radar UFO Map	en	space-and-astronomy WordPress WooCommerce	robots llmsaihumans	emailphone	none
martianfederation.com ↗	64 match 1 shared topics	Martian Federation - A Privately Financed Mars Phobos Colony	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
palendr.com ↗	64 match 1 shared topics	Plans	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
theufocentral.com ↗	63 match 1 shared topics	The UFO Central · One central place for the phenomenon	en	space-and-astronomy Sanity	robotsllmsaihumans	emailphone	none
thexay.com ↗	63 match 1 shared topics	the xay	en	space-and-astronomy	robotsllmsaihumans	emailphone	partial · 8
adlerplanetarium.org ↗	63 match 1 shared topics	Home - Adler Planetarium	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	full · 20
marsinfo.app ↗	63 match 1 shared topics	Discover the Red Planet today! - MarsInfo	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
marsplanetarium.com ↗	63 match 1 shared topics	MARS Portable Planetarium	en	space-and-astronomy Squarespace Magento	robotsllmsaihumans	emailphone	none
galaxydomesmumbai.com ↗	63 match 1 shared topics	Galaxy Domes Mumbai \| Galaxy Domes Planetarium	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
marsclaims.com ↗	62 match 1 shared topics	PlanetClaims.com — Claim Your Place in the Stars	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
thexenologist.com ↗	62 match 1 shared topics	The Xenologist	en	space-and-astronomy Reaction Commerce	robotsllmsaihumans	emailphone	none
thetoralegacy.com ↗	62 match 1 shared topics	The Tora Legacy	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
jacklnorthrup.com ↗	62 match 1 shared topics	From the Planetarium – Astronomy, Education, Technology, Teaching, and General geekiness	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
mars-earth.com ↗	62 match 1 shared topics	Solar System Planets \| Habitable Planets	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
theuapobserver.com ↗	62 match 1 shared topics	The UAP Observer	United States~ en	space-and-astronomy	robotsllmsaihumans	emailphone	none
theufochronicles.com ↗	62 match 1 shared topics	THE UFO CHRONICLES	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
theuniversequiz.com ↗	62 match 1 shared topics	The Universe Quiz	en	space-and-astronomy Shopify	robots llmsaihumans	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.