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SDSS-III — 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
cv-helios.net ↗	60 match 3 shared topics	CV-Helios Network - Worldwide Solar Observing Network	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
deapclean.org ↗	60 match 3 shared topics	DEAP/CLEAN Collaboration	en	physics	robotsllmsaihumans	emailphone	none
how-fast-is.com ↗	60 match 3 shared topics	How Fast Is — A Scale of Speed	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
hperryhatchfield.com ↗	60 match 3 shared topics	H Perry Hatchfield	en	science WordPress	robotsllmsaihumans	emailphone	none
hypothesis-of-universe.com ↗	60 match 3 shared topics	Hypotéza o dvouveličinovém vesmíru - Hypothesis of two-quantity universe	cs	physics	robotsllmsaihumans	emailphone	none
naturalphilosophy.org ↗	60 match 3 shared topics	CNPS	en	science WordPress	robotsllmsaihumans	emailphone	none
new-gravitation-theory.com ↗	60 match 3 shared topics	short version	en	physics	robotsllmsaihumans	emailphone	none
julian-it.de ↗	60 match 3 shared topics	Dr. Emmerich Stahl	Germany de	physics	robotsllmsaihumans	emailphone	none
0times.net ↗	60 match 3 shared topics	0times \| Solar System Equilibrium	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
8jk.com ↗	60 match 3 shared topics	Futur Cosmos		space-and-astronomy	robotsllmsaihumans	emailphone	none
aaronstrangfeld.com ↗	60 match 3 shared topics	Aaron Strangfeld – Personal Website	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
abhishekdesai.net ↗	60 match 3 shared topics	Home	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
atimokhin.org ↗	60 match 3 shared topics	Andrey Timokhin	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
b-bfe.org ↗	60 match 3 shared topics	B-BFE	en	physics	robotsllmsaihumans	emailphone	none
ekaresearch.org ↗	60 match 3 shared topics	Eka Research	NP~ en	space-and-astronomy	robotsllmsaihumans	emailphone	partial · 8
einsteinconference2015.org ↗	60 match 3 shared topics	Einstein Conference 2015, November 30 – December 2, Berlin \| A Century of General Relativity	en	science Drupal	robotsllmsaihumans	emailphone	none
einstein-project.net ↗	60 match 3 shared topics	The Einstein Project - Home	en	science Weebly	robotsllmsaihumans	emailphone	none
erc-compact.org ↗	60 match 3 shared topics	COMPACT	en	space-and-astronomy	robotsllmsaihumans	email phone	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.