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Alien alternatives & similar sites

Alien Fish – Building Triangles in Space — 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
whatsin.space ↗	67 match 1 shared topics	What's in Space	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
whatsinspace.com ↗	67 match 1 shared topics	What's in space?	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
matesin.space ↗	66 match 1 shared topics	Mates in Space clips - Omny.fm	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
mylifeinspace.com ↗	66 match 1 shared topics	My Life in Space	en	space-and-astronomy Squarespace Magento	robotsllmsaihumans	emailphone	none
retro-futurist.com ↗	66 match 1 shared topics	Creature Comforts in Space	en	space-and-astronomy	robotsllmsaihumans	email phone	none
above.space ↗	66 match 1 shared topics	ABOVE - Providing More Space in Space	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
abovespace.com ↗	66 match 1 shared topics	ABOVE - Providing More Space in Space	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
adventuresinouter.space ↗	65 match 1 shared topics	Adventures in Outer Space	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
manik.space ↗	65 match 1 shared topics	Manik in space \| hello-world	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
matt-in.space ↗	65 match 1 shared topics	Matt in Space \| Matt in Space	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
stemadventuresinouterspace.com ↗	64 match 1 shared topics	S.T.E.M. Adventures in Outer Space	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
dcalienreport.com ↗	64 match 1 shared topics	DC Alien Report – Documenting High Strangeness	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
manufacturing-in.space ↗	64 match 1 shared topics	DCUBED – Space Engineering Made Easy	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
thalianaspace.com ↗	64 match 1 shared topics	Thaliana Space – Propelling the new era of space	en	space-and-astronomy WordPress	robotsllmsaihumans	email phone	none
wolfcreek.space ↗	64 match 1 shared topics	Wolf Creek Observatory – Stumbling through deep space	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
becomingborealis.com ↗	64 match 1 shared topics	Becoming Borealis – In Sight	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
aeroin.space ↗	64 match 1 shared topics	Aeroin SpaceTech Private Limited	en	space-and-astronomy Wix	robots llmsaihumans	emailphone	none
advancing.space ↗	64 match 1 shared topics	Advancing for Space	en	space-and-astronomy	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.