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Skyidentify alternatives & similar sites

Sky Identify — 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
cleardarksky.com ↗	70 match shared topic	ClearDarkSky	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
earthsky.org ↗	70 match shared topic	EarthSky \| Updates on your cosmos and world	en	space-and-astronomy WordPress	robots llmsaihumans	emailphone	partial · 6
sdss.org ↗	70 match shared topic	Sloan Digital Sky Survey-V: Pioneering Panoptic Spectroscopy - SDSS-V	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
aliens.cam ↗	70 match shared topic	AliensCam — Live Sky & Space Cameras	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
solarsystemscope.com ↗	70 match shared topic	Solar System Scope - Online Model of Solar System and Night Sky	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
skyskan.com ↗	70 match shared topic	Sky-Skan – We Can Take You There™	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
skymaps.com ↗	70 match shared topic	Skymaps.com - Publication Quality Sky Maps & Star Charts	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
nasa.gov ↗	55 match shared topic	NASA	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
chaoxing.com ↗	55 match shared topic	超星	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
esa.int ↗	55 match shared topic	European Space Agency	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
hamqsl.com ↗	55 match shared topic	HF Propagation and Solar-Terrestrial Data Website	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
spacetourismhq.com ↗	55 match shared topic	Space Tourism HQ LLC	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
space.com ↗	55 match shared topic	Space.com: NASA, Space Exploration and Astronomy News	United States~ en	space-and-astronomy	robotsllmsaihumans	emailphone	none
copernicus.eu ↗	55 match shared topic	Homepage \| Copernicus	European Union en	space-and-astronomy Drupal	robotsllmsaihumans	emailphone	none
eso.org ↗	55 match shared topic	ESO	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
moonconnection.com ↗	55 match shared topic	Moon Information Resource And Guide	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
rocket.domains ↗	55 match shared topic	Rocket: Light Years Ahead	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
rasc.ca ↗	55 match shared topic	RASC \| Inspiring Interest and Knowledge of Astronomy Since 1868	Canada en	space-and-astronomy Drupal	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.