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Planatoo – We are the only known living Planet — 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
planetarydata.org ↗	64 match 2 shared topics	IPDA – The website for the International Planetary Data Alliance	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
samuelcourville.com ↗	64 match 2 shared topics	Samuel W. Courville – Planetary Science: Seeking the Spark of Life Beyond Earth	en	science WordPress WooCommerce	robotsllmsaihumans	emailphone	none
planetjefrey.com ↗	63 match 2 shared topics	Planet Jefrey - out there	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
synrge.com ↗	63 match 2 shared topics	SyNRGE - Growing Plants in Space - Feeding People on Earth	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
planetwrf.com ↗	63 match 2 shared topics	planetWRF	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
haplesspigeon.com ↗	63 match 2 shared topics	Hapless Pigeon – One bird-brain's exploration of planetary science	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
planethuntress.com ↗	63 match 2 shared topics	Exoplanet habitability \| Michelle Hill - Planet Huntress	en	space-and-astronomy Wix	robots llmsaihumans	emailphone	none
planetarycollisions.com ↗	62 match 2 shared topics	Star-Planetary Origins	en	science	robotsllmsaihumans	emailphone	none
planettimeless.com ↗	62 match 2 shared topics	Timeless Planet \| Space, Science & Technology	en	space-and-astronomy WordPress	robots llmsaihumans	emailphone	none
absolute-knowledge.com ↗	62 match 2 shared topics	Absolute Knowledge – Educate yourself – Above and beyond knowledge	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
a4e.org ↗	62 match 2 shared topics	Astronomers for Planet Earth (A4E). A global movement.	en	science WordPress	robotsllmsaihumans	emailphone	none
discoveringthecosmos.com ↗	62 match 2 shared topics	Home - Discovering The Cosmos	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
degroup.uk ↗	62 match 2 shared topics	Brandon Johnson Planetary Scientist \| Brand-On Johns-On	GB en	space-and-astronomy	robotsllmsaihumans	emailphone	none
urbugs.com ↗	62 match 2 shared topics	You are bugs	en	science WordPress	robotsllmsaihumans	emailphone	none
aarambhrocketry.com ↗	62 match 2 shared topics	Aarambh - Driving Innovation in Rocketry	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
planetxxy.com ↗	62 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
discsontheexe.org ↗	62 match 2 shared topics	Discs on the Exe	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
1inmillion.com ↗	62 match 2 shared topics	Discover the rare phenomena at 1 in Million \| 1 in million	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.