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ALeRCE | Automatic Learning for the Rapid Classification of Events — 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
copernix-initiative.com ↗	42 match 2 shared topics	Copernix – Pioneering a new Copernican revolution in Space Exploration	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
abbr.space ↗	41 match 2 shared topics	Space Acronyms, Abbreviations, & Terms	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
aaryan.space ↗	40 match 2 shared topics	Aaryan Anand – Aaryan's Portfolio	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	partial · 8
sybillatechnologies.eu ↗	40 match 2 shared topics	Sybilla Technologies – We let you see	European Union en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
blackswanspace.com ↗	40 match 2 shared topics	Blackswan Space	en	space-and-astronomy WordPress WooCommerce	robots llmsaihumans	emailphone	none
backyardspaceprogram.com ↗	40 match 2 shared topics	Backyard Space Program	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
imperial-eclipse.com ↗	40 match 2 shared topics	Imperial Eclipse	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
copernicusautomation.com ↗	24 match 1 shared topics	Copernicus Automation - Remote Observatory Control Systems \| CRM-144-S	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
2bcom.space ↗	23 match 1 shared topics	2BCOM Space – Solutions for the Space Industry	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
3af-spacepropulsion.com ↗	23 match 1 shared topics	Home - 10th EDITION OF THE SPACE PROPULSION CONFERENCE	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
3ap.org ↗	23 match 1 shared topics	Amateur Astronomers Association of Pittsburgh – Your Bridge to the Stars	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	partial · 8
acsp.space ↗	23 match 1 shared topics	Association of Commercial Space Professionals	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
aboutvalerievarnuska.org ↗	23 match 1 shared topics	Sedona, Arizona - One of the Top Stargazing Locations in the Country	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
spotthestation.org ↗	22 match 1 shared topics	Spot the Station (NASA) - Privacy Policy	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
blackwingspace.com ↗	22 match 1 shared topics	Blackwing Space \| American-Made Nanosatellites for Space 3.0	United States~ en	space-and-astronomy	robotsllmsaihumans	emailphone	none
absorbstraylight.com ↗	22 match 1 shared topics	Optical systems and instruments for use in outer space \| ACKTAR	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
astroscale.com ↗	22 match 1 shared topics	Astroscale \| Space for Tomorrow	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
1norton.com ↗	22 match 1 shared topics	Chuck Norton – Citizen of the World	en	space-and-astronomy WordPress	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.