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Space Vortex alternatives & similar sites

Véhicule orbital réutilisable transport Exploration - VORTEX — 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
ariane.group ↗	63 match 1 shared topics	ArianeGroup - Accueil	fr	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
space-campus.org ↗	63 match 1 shared topics	Space Campus \| Enable Cooperation	fr	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
spaceed.org ↗	63 match 1 shared topics	Space Education - Full Moon 2026 & Planets	fr	space-and-astronomy	robotsllmsaihumans	emailphone	none
spatialdjiboutien.net ↗	63 match 1 shared topics	A propos	fr	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
absolut-system.com ↗	63 match 1 shared topics	Accueil - Absolut System	fr	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
afastronomie.fr ↗	62 match 1 shared topics	L'Association Française d'Astronomie	France fr	space-and-astronomy Magento	robotsllmsaihumans	emailphone	none
easy-space.fr ↗	62 match 1 shared topics	Easy-Space - Accueil - Réalisez et testez votre propre satellite	France fr	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
hemeria-group.com ↗	62 match 1 shared topics	Accueil - Hemeria	fr	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
lecadranier.com ↗	62 match 1 shared topics	Des cadrans solaires pour le xxıᵉ siècle ! - Le Cadranier de Fontvieille	fr	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
doubsastuces.fr ↗	62 match 1 shared topics	Présentation du site	France fr	space-and-astronomy Joomla	robotsllmsaihumans	emailphone	none
123etoiles.com ↗	62 match 1 shared topics	Les stages 1, 2, 3 étoiles ! \| Association Française d'Astronomie	France~ fr	space-and-astronomy Magento	robotsllmsaihumans	emailphone	none
spacelevator.org ↗	62 match 1 shared topics	Accueil - Space Elevator	fr	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
domainedeletoile.fr ↗	62 match 1 shared topics	Domaine de L'Etoile - Ecole d'Astronomie de Haute-Saône, Animations Astronomie chez vous, vos amis, sur votre lieu de séjour, ou dans votre établissement !	France fr	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	email phone	none
spacefresco.org ↗	62 match 1 shared topics	The Space Fresco	fr	space-and-astronomy	robotsllmsaihumans	emailphone	none
cygnus21.fr ↗	62 match 1 shared topics	Cygnus21	France fr	space-and-astronomy	robotsllmsaihumans	emailphone	none
capasbl.com ↗	62 match 1 shared topics	CAP – Centre d'animation et de pédagogie	fr	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
spacexfrance.com ↗	61 match 1 shared topics	SpaceX France — Lancements en direct, Starship, Falcon 9 et Starlink - SpaceX France	fr	space-and-astronomy WordPress	robots llmsaihumans	emailphone	none
cosmodixi.fr ↗	61 match 1 shared topics	Cosmodixi : le Système solaire, les constellations...	France fr	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.