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ESSI - Earth Space Sustainability Initiative — 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
elevatespaceconference.com ↗	74 match 1 shared topics	ELEVATE Space & Sustainability Conference \| ELEVATE	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
earthandspace.net ↗	67 match 1 shared topics	Earth and Space \| Home	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
cscec.io ↗	66 match 1 shared topics	CSCEC \| Equal access to space for humanity	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
dandelionsat.com ↗	66 match 1 shared topics	Dandelion Space \| Open-source satellite education	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
starlab-space.com ↗	66 match 1 shared topics	Starlab Space \| A new era of space exploration has arrived	United States~ en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	partial · 1
esa.int ↗	66 match 1 shared topics	European Space Agency	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
earthrisespace.org ↗	66 match 1 shared topics	Earth Rise Space	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
electrictakeoffvehicle.com ↗	66 match 1 shared topics	ETOV — Earth to Orbit Vehicles	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
electrictakeoffvehicles.com ↗	66 match 1 shared topics	ETOV — Earth to Orbit Vehicles	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
visionpalacespace.com ↗	66 match 1 shared topics	Vision Palace Space: Exploring Astronomy, Cosmology, and Space Discoveries	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
medicalservice.io ↗	65 match 1 shared topics	Arribes - From Earth to Space & Back	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
avio.com ↗	65 match 1 shared topics	Avio – Advanced Space Propulsion & Aerospace Solutions	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
earthletters.com ↗	65 match 1 shared topics	Earth Letters — Travel Notes From A Space Alien	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
esaopticaleomooc.org ↗	65 match 1 shared topics	Earth Observation From Space: The Optical View	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
csparc.org ↗	65 match 1 shared topics	Cyprus Space Research and Innovation Centre (C-SpaRC)	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
fasesa.com ↗	65 match 1 shared topics	FASESA - Future African Space Explorer's STEM Academy	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
esaspacesolutions.ie ↗	65 match 1 shared topics	ESA Space Solutions Centre Ireland	Ireland en	space-and-astronomy WordPress	robotsllmsaihumans	email phone	none
earthismyspaceship.com ↗	65 match 1 shared topics	Earth Is My Spaceship \| Official Mission Equipment – Earth Is My Space Ship	en	space-and-astronomy Shopify	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.