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CASTOR | Cosmological Advanced Survey Telescope for Optical and ultraviolet Research — 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
denkmeier.com ↗	66 match 1 shared topics	Telescopes \| Denkmeier Optical	en	space-and-astronomy Wix	robots llmsaihumans	emailphone	none
opticalhardware.co.uk ↗	65 match 1 shared topics	Binoculars, Telescopes & Accessories - Optical Hardware	GB en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
astralis.org.au ↗	64 match 1 shared topics	Astralis: Australia's National Capability for Optical Astronomy Instrumentation	AU en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
csparc.org ↗	64 match 1 shared topics	Cyprus Space Research and Innovation Centre (C-SpaRC)	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
acadianasky.com ↗	64 match 1 shared topics	Astronomy, Telescopes, Meteorites, and Museums \| Acadiana Sky	en	space-and-astronomy Wix	robots llmsaihumans	emailphone	none
andrewscom.com.au ↗	64 match 1 shared topics	Marine Radio, Telescopes, Binoculars, Scanners, Test equipment and CB Radio in Australia	AU en	space-and-astronomy	robotsllmsaihumans	emailphone	none
bintel.com.au ↗	64 match 1 shared topics	Bintel \| Trusted Telescopes, Binoculars & Accessories Shop – The Binocular and Telescope Shop	AU en	space-and-astronomy Shopify	robots llmsaihumans	email phone	partial · 1
haveyouseenthisclock.com ↗	64 match 1 shared topics	The search for Rasmus Sørnes' 4th astronomical clock	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
johnsonized.com ↗	64 match 1 shared topics	Space Art, Astronomical Art, Advanced Concept, 3D Animation, Film of B.E.Johnson	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
uscameloptics.com ↗	64 match 1 shared topics	Monocular, Binocular, Telescope, Scientific & Professional Optics – USCAMEL Optics	en	space-and-astronomy Shopify	robots llmsaihumans	emailphone	none
4astronomy.com ↗	64 match 1 shared topics	4Astronomy -- Custom Search for Astronomy Resources, Tools, and News	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
cascadiaskies.com ↗	64 match 1 shared topics	Cascadia Skies Remote Telescope Observatory – Space, Astronomy and Observatory	en	space-and-astronomy WordPress	robotsllmsaihumans	email phone	none
dreamup.org ↗	64 match 1 shared topics	Educational Space Research for Students – DreamUp	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
bob.com.au ↗	63 match 1 shared topics	coin operated binoculars and coin operated telescopes	AU en	space-and-astronomy	robotsllmsaihumans	emailphone	none
celestron.com.au ↗	63 match 1 shared topics	Telescopes, Accessories, Outdoor and Scientific Products by Celestron	AU en	space-and-astronomy Shopify	robotsllmsaihumans	emailphone	none
abotectelescope.com ↗	63 match 1 shared topics	Abotec Official Website - Premium Telescopes	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
hawkeepoptics.com ↗	63 match 1 shared topics	China Laser Rangefinder, Telescope, Night Vision Device Manufacturers - HAWKEEP	CN~ en	space-and-astronomy	robotsllmsaihumans	email phone	none
plazasmalagon.com ↗	63 match 1 shared topics	Andrés A. Plazas Malagón - Astrophysicist and Cosmologist	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.