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Spacelist alternatives & similar sites

Brian's Space Hotlist — 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
space-hq.org ↗	69 match 1 shared topics	Space HQ	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
spacetravel.tech ↗	68 match 1 shared topics	Home - SPACE TECH	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
spaceodyssey.net ↗	68 match 1 shared topics	Club Space Odyssey	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
romulusspace.com ↗	68 match 1 shared topics	Romulus Space Technology	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
spacechannel.com ↗	67 match 1 shared topics	Space Channel	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
ai4space.group ↗	67 match 1 shared topics	AI for Space Group	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
mcgillspace.com ↗	67 match 1 shared topics	McGill Space Group	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
space-audio.org ↗	67 match 1 shared topics	Space Audio	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
2space.ventures ↗	67 match 1 shared topics	2 Space Ventures	en	space-and-astronomy Squarespace Magento	robotsllmsaihumans	emailphone	partial · 13
space-coe.net ↗	67 match 1 shared topics	Nato Space COE	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
space-coe.org ↗	67 match 1 shared topics	Nato Space COE	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
accio.space ↗	67 match 1 shared topics	Accio Space	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
space-harvester.com ↗	67 match 1 shared topics	Space Harvester	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
spacetrashsigns.org ↗	67 match 1 shared topics	Home - Space Trash Signs	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
aetos-labs.space ↗	67 match 1 shared topics	Aetos Space Labs \| site	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
spacetech.world ↗	67 match 1 shared topics	Balkan Space Engineering	en	space-and-astronomy Wix	robots llmsaihumans	emailphone	none
spacepilgrim.com ↗	67 match 1 shared topics	Space Pilgrim	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
spacetelescopelive.org ↗	66 match 1 shared topics	Space Telescope Live	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.