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Backtospace alternatives & similar sites

Back to 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
journalinspace.com ↗	69 match 1 shared topics	Journal in Space	en	space-and-astronomy Drupal	robotsllmsaihumans	emailphone	none
appliedspace.co.uk ↗	69 match 1 shared topics	Applied Space	GB en	space-and-astronomy	robotsllmsaihumans	emailphone	none
kanataspace.com ↗	69 match 1 shared topics	KANATA SPACE	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
josiespace.com ↗	68 match 1 shared topics	JosieSpace	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
cscec.io ↗	68 match 1 shared topics	CSCEC \| Equal access to space for humanity	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
kayserspace.com ↗	68 match 1 shared topics	Kayser Space	en	space-and-astronomy Sanity	robotsllmsaihumans	emailphone	partial · 8
upload6.com ↗	68 match 1 shared topics	Lost in space	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
planetaryprobst.com ↗	68 match 1 shared topics	Alena's Space	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
hassemvp.com ↗	67 match 1 shared topics	HASSE Space School	en	space-and-astronomy Lightspeed	robotsllmsaihumans	emailphone	none
4dmanual.com ↗	66 match 1 shared topics	Spacecraft	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
ablspacesystems.com ↗	66 match 1 shared topics	Home — ABL Space Systems	US~ en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
johnaghadiuno.com ↗	65 match 1 shared topics	John's Space - John Aghadiuno	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
swedishspacecorporation.com ↗	65 match 1 shared topics	SSC Space (formerly Swedish Space Corporation)	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
cas-space.com ↗	65 match 1 shared topics	中科宇航 CAS SPACE	en	space-and-astronomy	robotsllmsaihumans	email phone	none
2spacenow.com ↗	65 match 1 shared topics	Spaceport 2SPACENOW	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
abovespace.com ↗	65 match 1 shared topics	ABOVE - Providing More Space in Space	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
nasa-explorer.com ↗	65 match 1 shared topics	NASA Space Explorer - Discover the Universe	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
spacesystems.uk ↗	65 match 1 shared topics	Space Systems - Space Systems Ltd	GB en	space-and-astronomy WordPress WooCommerce	robots llmsaihumans	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.