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Stefan Ohm — 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
cleanorbitfoundation.org ↗	62 match 1 shared topics	Home - Clean Orbit Foundation	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
earthseaspacemuseum.org ↗	61 match 1 shared topics	FRIENDS OF THE EARTH, SEA AND SPACE CENTER - Home	en	space-and-astronomy Weebly	robotsllmsaihumans	emailphone	none
earthsunmoonandstars.com ↗	61 match 1 shared topics	Earth, Sun, Moon and Stars - Earth, Sun, Moon and Stars	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
christherocketguy.com ↗	61 match 1 shared topics	Chris The Rocket Guy • Florida Space Coast Launch Tracker	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
charlieduke.com ↗	61 match 1 shared topics	Charlie Duke, Lunar Module Pilot on Apollo 16, 10th man on the moon.	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
hedahl.net ↗	60 match 1 shared topics	Leif Hedahl Rasmussen's Personal Homepage	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
heds03.com ↗	60 match 1 shared topics	Music City Missile Club > Introduction	en	space-and-astronomy DotNetNuke/DNN	robotsllmsaihumans	email phone	none
hein-site.net ↗	60 match 1 shared topics	Home - Hein-Site.net	en	space-and-astronomy Joomla	robotsllmsaihumans	emailphone	none
heinofalcke.org ↗	60 match 1 shared topics	Heino Falcke	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
helensharman.com ↗	60 match 1 shared topics	Helen Sharman CMG OBE: The First British Astronaut	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
helensharmanastronaut.com ↗	60 match 1 shared topics	Helen Sharman CMG OBE: The First British Astronaut	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
helfertastro.com ↗	60 match 1 shared topics	Helfert Astrophotography	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
helio8.tech ↗	60 match 1 shared topics	Helio 8	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
helioarc.org ↗	60 match 1 shared topics	The HelioArc Foundation	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
helioreport.net ↗	60 match 1 shared topics	Solar Snapshot	en	space-and-astronomy Shopify	robots llmsaihumans	emailphone	none
heliotime.org ↗	60 match 1 shared topics	Heliotime - Interactive Timeline for GOES X-Ray Data	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
helioviewer.org ↗	60 match 1 shared topics	Helioviewer.org - Solar and heliospheric image visualization tool	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
helioweather.net ↗	60 match 1 shared topics	ENLIL Solar Wind Prediction	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.