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Extracons alternatives & similar sites

ExtraCons - Instituto Internacional de Extraterrestriologia - ExtraCons - Instituto Internacional de Extraterrestriologia — 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
antarcticus.de ↗	61 match 1 shared topics	AIS - Antarcticus - Info-System	Germany de	space-and-astronomy	robotsllmsaihumans	emailphone	none
wbergt.com ↗	61 match 1 shared topics	Wolfgang Bergt - Wissenschaft, Bildung, Politik, Kunst und Kultur im Internet	de	space-and-astronomy	robotsllmsaihumans	emailphone	none
andreas.de ↗	61 match 1 shared topics	Andreas Schepers - Kommunikation für Raumfahrt und Künstliche Intelligenz	Germany de	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
andreas-domenico.de ↗	61 match 1 shared topics	Visual Deep Sky Observing	Germany de	space-and-astronomy	robotsllmsaihumans	emailphone	none
cosmic-lingua.com ↗	61 match 1 shared topics	Cosmic Lingua - Speaking the Language of Space	de	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
alternative-raumfahrt.de ↗	61 match 1 shared topics	Wir sind ein Team aus Raumfahrtenthusiasten, Wissenschaftlern und Ingenieuren die Ihre Freizeit damit verbringen aufregende Projekte mit Raumfahrtbezug zu verwirklichen. \| Forschungs Gemeinschaft Alternative Raumfahrt	Germany de	space-and-astronomy	robotsllmsaihumans	emailphone	none
mein-vogelsberg.com ↗	60 match 1 shared topics	Die Gnümies. Willkommen in der Welt der Gnümies: Planet Gnüm	de	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
animate-it.de ↗	60 match 1 shared topics	Twinstar	Germany de	space-and-astronomy	robotsllmsaihumans	emailphone	none
3words-share.com ↗	60 match 1 shared topics	Nikolai von Krusenstiern \| An Astrophysicist in Space Operations	de	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
altenburg-netz.de ↗	60 match 1 shared topics	Frank Vohla - Astronomie in Altenburg, Einrad u.a.	Germany de	space-and-astronomy	robotsllmsaihumans	emailphone	none
amateursternwarte.de ↗	60 match 1 shared topics	Amateursternwarte Mueggelheim	Germany de	space-and-astronomy	robotsllmsaihumans	emailphone	none
3words-nav.com ↗	60 match 1 shared topics	Nikolai von Krusenstiern \| An Astrophysicist in Space Operations	de	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
bea-space.com ↗	60 match 1 shared topics	Innovative Launcher PROPULSION technology - bea-spaces Webseite!	de	space-and-astronomy Jimdo	robotsllmsaihumans	emailphone	none
heutemondkalender.com ↗	60 match 1 shared topics	Mondaufgang, Monduntergang und Mondkalender	de	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
kosmo-pod.com ↗	60 match 1 shared topics	Sterne und Weltraum - Spektrum der Wissenschaft	de	space-and-astronomy	robotsllmsaihumans	emailphone	none
kosmopod.com ↗	60 match 1 shared topics	Sterne und Weltraum - Spektrum der Wissenschaft	de	space-and-astronomy	robotsllmsaihumans	emailphone	none
bodenseeplanetarium.ch ↗	60 match 1 shared topics	Bodensee Planetarium - Startseite	Switzerland de	space-and-astronomy	robotsllmsaihumans	emailphone	none
cleanspace-one.ch ↗	60 match 1 shared topics	Startseite - CleanSpace One	Switzerland de	space-and-astronomy WordPress	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.