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Upgrading Optimism | Chris Hawkins | Substack — 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
acubesat.com ↗	62 match 2 shared topics	AcubeSAT \| AcubeSAT \| Space Biology Mission	en	science	robotsllmsaihumans	emailphone	none
synrge.com ↗	62 match 2 shared topics	SyNRGE - Growing Plants in Space - Feeding People on Earth	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
contractinguniverse.co.uk ↗	62 match 2 shared topics	A CONTRACTING UNIVERSE: AN ALTERNATIVE COSMOLOGY TO ONE OF EXPANSION	GB en	space-and-astronomy	robotsllmsaihumans	emailphone	none
symbioticsuit.com ↗	61 match 2 shared topics	Symbiotic Suit \| Next-Gen Radiation & Hazard Protection for Space & Earth	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
planettimeless.com ↗	61 match 2 shared topics	Timeless Planet \| Space, Science & Technology	en	space-and-astronomy WordPress	robots llmsaihumans	emailphone	none
dingo-survey.org ↗	61 match 2 shared topics	DINGO	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
planetxxy.com ↗	61 match 2 shared topics	Planet XXY – Space travel, combative astronauts, and berserk gender chromosomes like never before!	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
1inmillion.com ↗	61 match 2 shared topics	Discover the rare phenomena at 1 in Million \| 1 in million	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
jontihorner.com ↗	61 match 2 shared topics	PROFESSOR JONTI HORNER - Home	en	space-and-astronomy Weebly	robotsllmsaihumans	emailphone	none
nambinarayanan.com ↗	61 match 2 shared topics	Nambi Narayanan \| ISRO Scientist, Padma Bhushan Awardee \| A Tribute	IN~ en	space-and-astronomy	robots llmsaihumans	emailphone	none
3dalien.com ↗	61 match 2 shared topics	3dalien.com \| 3d alien	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
sanceen.com ↗	61 match 2 shared topics	Sanceen: Explore Science, Space and Technology	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
discoveringthecosmos.com ↗	61 match 2 shared topics	Home - Discovering The Cosmos	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
acmerocketscience.com ↗	61 match 2 shared topics	The ACME Rocket Science Company – Ideas Blasting off to Success! Coming to a Planet near you … soon!	en	science WordPress	robotsllmsaihumans	emailphone	none
pleiadie.com ↗	61 match 2 shared topics	pleiadie - Explore Space, Science, Health & Innovation	en	space-and-astronomy Weebly	robotsllmsaihumans	email phone	none
samuelcourville.com ↗	61 match 2 shared topics	Samuel W. Courville – Planetary Science: Seeking the Spark of Life Beyond Earth	en	science WordPress WooCommerce	robotsllmsaihumans	emailphone	none
4hollowearth.com ↗	61 match 2 shared topics	A New Perspective of Earth's Structure	en	science	robotsllmsaihumans	emailphone	none
5watts.org ↗	61 match 2 shared topics	QRP and Amateur Radio by Roger J. Wendell - WB�JNR (WB0JNR)	en	science	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.