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We Know Space • Umbra — 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
dorkspacesystems.com ↗	100 match 1 shared topics	We Know Space • Umbra	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
blastoff.space ↗	67 match 1 shared topics	blastoff.space — space tv	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
buran-energia.su ↗	67 match 1 shared topics	Buran Space Shuttle	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
astroscale.com ↗	66 match 1 shared topics	Astroscale \| Space for Tomorrow	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
newspacelabsllc.com ↗	66 match 1 shared topics	New Space Laboratories	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
american.space ↗	66 match 1 shared topics	Welcome to A Space	en	space-and-astronomy Wix	robots llmsaihumans	emailphone	none
newjointproject.com ↗	66 match 1 shared topics	European Space Agency	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
avoid.space ↗	66 match 1 shared topics	a space	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
mcgillspace.com ↗	66 match 1 shared topics	McGill Space Group	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
jatan.space ↗	66 match 1 shared topics	jatan.space 🌙	en	space-and-astronomy Ghost	robotsllmsaihumans	emailphone	none
robertjacobson.com ↗	66 match 1 shared topics	Robert Jacobson - Space Advocate	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
anxplore.space ↗	66 match 1 shared topics	Anxplore \| Space Pioneer	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
qsp.dev ↗	66 match 1 shared topics	Quiet Space Program	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
labispace.com ↗	66 match 1 shared topics	Labi Space	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
boltu.space ↗	66 match 1 shared topics	boltu.space \| Launching to Space	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
robin-space.com ↗	65 match 1 shared topics	Robin Space	en	space-and-astronomy	robotsllmsaihumans	emailphone	partial · 8
buran.su ↗	65 match 1 shared topics	Buran Space Shuttle vs STS	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
guerrero-space-apps.org ↗	65 match 1 shared topics	NASA Space Apps Challenge	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.