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Kepler-Institut International e.V. — 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
ufos-topsecret.com ↗	71 match 1 shared topics	ufos.international	de	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
3words-share.com ↗	62 match 1 shared topics	Nikolai von Krusenstiern \| An Astrophysicist in Space Operations	de	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
3words-nav.com ↗	62 match 1 shared topics	Nikolai von Krusenstiern \| An Astrophysicist in Space Operations	de	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
raumfahrer.net ↗	62 match 1 shared topics	Raumfahrer Net e.V.	de	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
peter-habison.at ↗	61 match 1 shared topics	stem&mint – Space and Science Communications - Dr. Peter Habison	Austria de	space-and-astronomy WordPress	robotsllmsaihumans	email phone	none
guenther-ruediger.com ↗	61 match 1 shared topics	Günther Rüdiger, Astronom – Photos, stories, limitations	de	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
jochens-astroblog.org ↗	61 match 1 shared topics	Sternwarte Muchelndorf	de	space-and-astronomy Joomla Reaction Commerce	robotsllmsaihumans	emailphone	none
anyorbit.space ↗	61 match 1 shared topics	AnyOrbit Spacecrafts \| We bring you into space!	de	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
planetarium-schwaz.at ↗	61 match 1 shared topics	Planetarium Schwaz wird Your Dome: der Blick in die Sterne	Austria de	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
plato2.at ↗	60 match 1 shared topics	PLATO - Weltraumteleskop für Planetensuche und Sternschwingung	Austria de	space-and-astronomy	robotsllmsaihumans	emailphone	none
bossard.network ↗	60 match 1 shared topics	Das Universum von bossard.network - bossard.network	de	space-and-astronomy WordPress WooCommerce	robots llmsaihumans	email phone	none
bowhouse-observatory.earth ↗	60 match 1 shared topics	Start - Bowhouse Observatory	de	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
burda.koeln ↗	60 match 1 shared topics	Doc B's Homepage	de	space-and-astronomy	robotsllmsaihumans	emailphone	none
burggespraeche.info ↗	60 match 1 shared topics	Astronomie und Mittelalter auf Schloss Albrechtsberg – Die Burggespräche des Orion	de	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
anwe.space ↗	60 match 1 shared topics	Astronomie Netzwerk Weser-Ems – Astro-Networking-Northern-Germany	de	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
avk.space ↗	60 match 1 shared topics	Astronomische Vereinigung Kreuzlingen - Astronomische Vereinigung Kreuzlingen	de	space-and-astronomy	robotsllmsaihumans	emailphone	none
berlin-stars.info ↗	60 match 1 shared topics	Ihre Berlin-Stars	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

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.