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Alter Meridian | Planetary Change Initiative — 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
diamondskyproductions.com ↗	65 match 1 shared topics	Diamond Sky Productions - Planetary Imagery and Animations : Cassini : Saturn : Rings : Moons	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
armagh.space ↗	64 match 1 shared topics	Armagh Observatory & Planetarium \| County Armagh \| Northern Ireland	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	partial · 8
ourpluto.org ↗	64 match 1 shared topics	Our Pluto \| Latest Updates and info of this former planet	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
constellir.com ↗	64 match 1 shared topics	constellr \| The world’s most accurate thermal intelligence	Germany~ en	space-and-astronomy	robotsllmsaihumans	emailphone	none
constellr.com ↗	64 match 1 shared topics	constellr \| The world’s most accurate thermal intelligence	Germany~ en	space-and-astronomy	robotsllmsaihumans	emailphone	none
3iatlas.com ↗	64 match 1 shared topics	3I Atlas (3I/ATLAS) - Interstellar Object Tracker \| Real-Time Data & Analysis	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	partial · 13
moonresource.com ↗	63 match 1 shared topics	MoonResource \| Lunar Intelligence Platform \| Apollo Landing Sites, 3D Terrain, Artemis Tracking	en	space-and-astronomy	robotsllmsaihumans	emailphone	partial · 8
moonscan.com ↗	63 match 1 shared topics	MoonScan	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
alisonlcrisp.com ↗	63 match 1 shared topics	Alison L. Crisp – Exoplanet astronomer + science communicator.	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
bcplanetarium.com ↗	63 match 1 shared topics	The BC Planetarium \| British Columbia's mobile space simulation dome	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
mcpstars.org ↗	63 match 1 shared topics	Merrillville Community Planetarium - Bringing the Universe to the Merrillville Schools and Northwest Indiana	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
constellationsim.com ↗	63 match 1 shared topics	Constellation Simulation	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
outerspacermeteorites.com ↗	62 match 1 shared topics	OuterSpacer Meteorites – Welcome	en	space-and-astronomy Shopify	robots llmsaihumans	emailphone	none
voicelifespace.com ↗	62 match 1 shared topics	🛰️ Advanced Satellite Tracker - Real-time ISS & Starlink Tracking	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
3iatlascomet.com ↗	62 match 1 shared topics	3I Atlas Live Tracking: Current Position of Comet 3I/ATLAS \| Real-Time Tracker & Orbit Simulator	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
beaumontfoam.com ↗	62 match 1 shared topics	3I Atlas Live Tracking: Current Position of Comet 3I/ATLAS \| Real-Time Tracker & Orbit Simulator	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
beaumontinsulation.com ↗	62 match 1 shared topics	3I Atlas Live Tracking: Current Position of Comet 3I/ATLAS \| Real-Time Tracker & Orbit Simulator	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
jenniferlauren.co ↗	62 match 1 shared topics	DEEP SPACE Atlas \| Jennifer Lauren \| Substack	Colombia 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.