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Spacefacts alternatives & similar sites

SPACEFACTS - Discover the world of astronauts and cosmonauts. — 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
alien-rocks.com ↗	69 match 1 shared topics	Alien Rocks - Discover the art of space with us	en	space-and-astronomy	robotsllmsaihumans	email phone	none
2funnyastronauts.com ↗	68 match 1 shared topics	2 Funny Astronauts \| 2 Funny Astronauts	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
cosmicspinpro.com ↗	68 match 1 shared topics	Cosmic Spin Pro: Exploring Astrophysics and Space Discoveries	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
rojgar.com ↗	67 match 1 shared topics	Exploring the Wonders of the Universe: Astronomy Trends and Discoveries	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
crystalpalacespace.com ↗	67 match 1 shared topics	Crystal Palace Space: Exploring Astronomy, Space Tech & Cosmic Discoveries	United States~ en	space-and-astronomy	robotsllmsaihumans	emailphone	none
spacestationearth.net ↗	66 match 1 shared topics	Ilan Eshkeri's Space Station Earth \| SEE THROUGH THE EYES OF AN ASTRONAUT	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
spacenation.org ↗	66 match 1 shared topics	Train Like an Astronaut \| Space Nation Mission Simulations	en	space-and-astronomy Lightspeed	robotsllmsaihumans	emailphone	none
3dastronomer.net ↗	66 match 1 shared topics	3D Astronomer, Space Exploring The Cosmos, Stars or Outer Space.	en	space-and-astronomy Weebly	robotsllmsaihumans	emailphone	none
rokets.com ↗	66 match 1 shared topics	Exploring the World of Space Exploration at Rokets.com	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
spacedecentral.net ↗	66 match 1 shared topics	Space Decentral - Decentralized Space Program for Future Astronauts	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
csgazers.org ↗	66 match 1 shared topics	Community Stargazers \| Discovering the Wonders of the Universe — Join Today	en	space-and-astronomy Squarespace Magento	robotsllmsaihumans	emailphone	none
spacefacts.org ↗	66 match 1 shared topics	Space Facts - Interesting Facts about Space!	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
space-facts.com ↗	66 match 1 shared topics	Space Facts - Interesting Facts about Space!	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	partial · 5
antarikshnitkkr.live ↗	66 match 1 shared topics	Antariksh NIT Kurukshetra \| Space and Astronomy Club	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
spaceworkscosmo.org ↗	65 match 1 shared topics	SpaceWorks - Cosmosphere	en	space-and-astronomy WordPress	robotsllmsaihumans	email phone	none
spacescience360.com ↗	65 match 1 shared topics	Space Science 360 \| Astronomy	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
beyondgravity.com ↗	65 match 1 shared topics	We help humanity explore the world and beyond. \| Beyond Gravity	en	space-and-astronomy Drupal	robotsllmsaihumans	emailphone	none
spacediscoverycenter.com ↗	65 match 1 shared topics	Space Discovery Center	United States~ 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.