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The Astro Cave – Deep Space Photography — 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
rogergroom.com ↗	68 match 2 shared topics	Roger Groom's Website – Astronomy, Astro Photography and Landscape Photography	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
adambernsteinphotography.com ↗	68 match 2 shared topics	Adam Bernstein Photography	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
transientastronomer.com ↗	68 match 2 shared topics	Transient Astronomer, Tom Masterson Photography	en	space-and-astronomy Wix	robots llmsaihumans	emailphone	none
ronbrecher.com ↗	68 match 2 shared topics	Astrophotographer Ron Brecher - Astrodoc: Astrophotography by Ron Brecher	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
5cats.org ↗	67 match 2 shared topics	Astrophotography by Mike Halderman	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
adfr.io ↗	67 match 2 shared topics	Frank Adler :: Astrophotography & Web Engineering	en	space-and-astronomy	robotsllmsaihumans	emailphone	full · 20
badastrophotos.com ↗	65 match 2 shared topics	Rob Pettengill's not so bad Astrophotography & Astronomy Austin Texas	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
chappelastro.com ↗	64 match 2 shared topics	Chappel Astro	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
3sistersastronomy.com ↗	64 match 2 shared topics	Home - 3SistersAstronomy	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
palmantics.com ↗	62 match 2 shared topics	Welcome to www.palmantics.com, come in and check out some of the things I am interested in.	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
donegalskies.com ↗	62 match 2 shared topics	Donegal Skies	en	space-and-astronomy	robotsllmsaihumans	emailphone	partial · 8
rodneyssaga.com ↗	61 match 2 shared topics	Virtual Brush Box – Horses & Other Interests	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
hendrenimaging.net ↗	61 match 2 shared topics	Chris Hendren Imaging	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
rocketignition.com ↗	60 match 2 shared topics	Rocket Ignition!	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
helfertastro.com ↗	41 match 1 shared topics	Helfert Astrophotography	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
treehouseastro.com ↗	39 match 1 shared topics	Tree House Astro – Astrophotography, 3D printing, coding, …	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	partial · 8
rodpommier.com ↗	39 match 1 shared topics	Rod Pommier Astrophotography	en	space-and-astronomy Squarespace	robotsllmsaihumans	emailphone	none
clearstarrynights.com ↗	38 match 1 shared topics	name="description" content="DSLR Astrophotography, Home Built Observatory, and Photograps of Deep Space Objects	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.