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Spacequestions alternatives & similar sites

Home Page - SpaceQuestions.org — 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
txspace.com ↗	70 match 1 shared topics	Home - Texas Space Communications	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
questionsoftheuniverse.com ↗	70 match 1 shared topics	Questions Of The Universe	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
ufothebook.com ↗	69 match 1 shared topics	Home Page - UFO The Book	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
roodrones.com ↗	69 match 1 shared topics	Home Page	en	space-and-astronomy Joomla	robotsllmsaihumans	emailphone	none
jmath.dev ↗	68 match 1 shared topics	home - jmath	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
3af-spacepropulsion.com ↗	67 match 1 shared topics	Home - 10th EDITION OF THE SPACE PROPULSION CONFERENCE	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
canpolandinto.space ↗	67 match 1 shared topics	Can Poland Into Space?	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
closertotruth.com ↗	67 match 1 shared topics	Homepage - Closer To Truth	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
turtleislandspace.com ↗	66 match 1 shared topics	Space Education - Home - Turtle Island Space	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
cveillet.net ↗	66 match 1 shared topics	Christian Veillet - home page	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
cveillet.org ↗	66 match 1 shared topics	Christian Veillet - home page	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
newspacenow.com ↗	66 match 1 shared topics	Home - NewSpaceNow	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
mcgillspace.com ↗	66 match 1 shared topics	McGill Space Group	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
aerith.net ↗	66 match 1 shared topics	Seiichi Yoshida's Home Page	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
cateroid.space ↗	66 match 1 shared topics	First Cat In Space	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
jessicabirky.com ↗	66 match 1 shared topics	Homepage - Jess Birky	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
robertjacobson.com ↗	66 match 1 shared topics	Robert Jacobson - Space Advocate	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
adarshdesignbuild.com ↗	65 match 1 shared topics	Tandem Space Solutions	en	space-and-astronomy WordPress	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.