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Ian Steer – Ian Steer – NASA/IPAC Extragalactic Database of Distances — 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
virgingalactic.com ↗	64 match 1 shared topics	Virgin Galactic Spaceflight Expeditions	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
anniewalkerstars.com ↗	64 match 1 shared topics	Hidden Star – The Story of Annie Walker – The story of Annie Walker	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
how-long-to.com ↗	63 match 1 shared topics	how-long-to - Visualize Distance & Time with Interactive Journey Maps	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
virginimagine.com ↗	63 match 1 shared topics	Virgin Galactic Imagine	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
prufospolicedatabase.co.uk ↗	63 match 1 shared topics	HOME - The PRUFOS Police Database	United Kingdom en	space-and-astronomy	robotsllmsaihumans	emailphone	none
herhofer.com ↗	63 match 1 shared topics	Home - Galactic Services Space	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	email phone	none
spocdata.org ↗	63 match 1 shared topics	Space Power Capabilities – Space Power Capabilities Database	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
cubesats.org ↗	63 match 1 shared topics	Nanosats Database \| Constellations, companies, technologies and more	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
euclid-ec.org ↗	62 match 1 shared topics	Euclid Consortium – A space mission to map the Dark Universe	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
hedylamarr.com ↗	62 match 1 shared topics	Hedy Lamarr – The Official Website of Hedy Lamarr	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
howtocontactstarvisitors.com ↗	62 match 1 shared topics	How to Contact Star Visitors – 30 Year Pleiadian Contactee Experiences	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
donmachholz.com ↗	62 match 1 shared topics	Donald Machholz – American Visual Comet Discoverer • 50 Years of Observing	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
danstratmanauthor.com ↗	62 match 1 shared topics	Author Dan Stratman – Official website	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
darksitefinder.com ↗	62 match 1 shared topics	Dark Site Finder – Light Pollution Maps	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
3iatlasapp.com ↗	62 match 1 shared topics	3i Atlas: UAP News, NASA Alerts & Live Rocket Launch Tracker	en	space-and-astronomy	robots llmsaihumans	emailphone	none
dataobservations.com ↗	62 match 1 shared topics	Stela's Portfolio – Data Visualizations and Designs about Space🚀	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
earthlightstore.org ↗	62 match 1 shared topics	The EarthLight Foundation Store – The EarthLight Store	en	space-and-astronomy Shopify	robots llmsaihumans	emailphone	none
astro-helio.ch ↗	62 match 1 shared topics	FHNW Institute for Data ScienceAstroinformatics and Heliophysics Group – Gruppe Astroinformatik und Sonnenphysik	Switzerland en	space-and-astronomy WordPress WooCommerce	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.