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Space Search alternatives & similar sites

Space Search — 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
buran-energia.su ↗	70 match 1 shared topics	Buran Space Shuttle	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
4spacescience.com ↗	69 match 1 shared topics	4SpaceScience -- Search Space Science Data, News, Tools	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
rogervarney.com ↗	68 match 1 shared topics	Varney Geospace Research Group	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
anubis.space ↗	68 match 1 shared topics	Anubis — The Story Engine for Space Industry	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
afrofuturist.space ↗	68 match 1 shared topics	Space Futures	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
jatan.space ↗	68 match 1 shared topics	jatan.space 🌙	en	space-and-astronomy Ghost	robotsllmsaihumans	emailphone	none
avoid.space ↗	68 match 1 shared topics	a space	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
clearspace.today ↗	68 match 1 shared topics	ClearSpace	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
mcgillspace.com ↗	68 match 1 shared topics	McGill Space Group	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
buran.su ↗	67 match 1 shared topics	Buran Space Shuttle vs STS	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
guerrero-space-apps.org ↗	67 match 1 shared topics	NASA Space Apps Challenge	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
venspace.org ↗	67 match 1 shared topics	Venspace	United States~ en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
spaceclub.com.ar ↗	67 match 1 shared topics	SpaceClub	Argentina en	space-and-astronomy	robotsllmsaihumans	emailphone	none
csparc.org ↗	67 match 1 shared topics	Cyprus Space Research and Innovation Centre (C-SpaRC)	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
hpspace.co ↗	66 match 1 shared topics	The Highland Park Space Company	Colombia en	space-and-astronomy	robotsllmsaihumans	emailphone	none
robinson-aerospace.com ↗	66 match 1 shared topics	Home \| Robinson Aerospace Systems	en	space-and-astronomy Wix Wix Stores	robots llmsaihumans	emailphone	partial · 8
ttbaerospace.com ↗	66 match 1 shared topics	TTB Aerospace	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
4dmanual.com ↗	66 match 1 shared topics	Spacecraft	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.