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Home | Instituto de Astrofísica de Canarias • IAC — 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
oeaa-astro.org ↗	67 match 1 shared topics	OEAA – Olimpiada Ecuatoriana de Astronomía y Astrofísica	es	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
eiecongress.com ↗	64 match 1 shared topics	Congreso de Ingeniería Espacial \| Espacio \| Instituto de la Ingeniería de España, Calle del General Arrando, Madrid, España	es	space-and-astronomy Wix	robots llmsaihumans	emailphone	none
astromania.co ↗	64 match 1 shared topics	Astromanía - Tienda de Astronomía	Colombia es	space-and-astronomy PrestaShop	robotsllmsaihumans	emailphone	none
olaa-astro.org ↗	64 match 1 shared topics	Olimpiada Latinoamericana de Astronomía y Astronáutica (OLAA)	es	space-and-astronomy	robotsllmsaihumans	emailphone	none
aaaupm.com ↗	64 match 1 shared topics	Asociación Astronómica de Aeronáuticos – ¡Conoce la triple A!	es	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	full · 12
diadelaastronomia.cl ↗	64 match 1 shared topics	Día de la Astronomía	Chile es	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
turismoestelar.com ↗	63 match 1 shared topics	Turismo Estelar, tu portal de astroturismo.	es	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
turismodeestrellas.com ↗	63 match 1 shared topics	Turismo de Estrellas canal online especializado en Astroturismo	es	space-and-astronomy	robotsllmsaihumans	emailphone	none
observatorioguirguillano.org ↗	63 match 1 shared topics	Observatorio Astronómico de Guirguillano	es	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
guiaeclipses.com ↗	62 match 1 shared topics	Eclipse solar 12 de agosto de 2026 en España: cómo verlo	es	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
aamadridsur.com ↗	62 match 1 shared topics	Inicio - Agrupación Astronómica Madrid Sur	es	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
danielcd.es ↗	62 match 1 shared topics	Daniel C.D. – Astronomía	Spain es	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
cielosestrellados.net ↗	62 match 1 shared topics	cielosestrellados \| Divulgación de la Astronomía	es	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
piriprimucci.com ↗	62 match 1 shared topics	Astrofotos por Piri Primucci	es	space-and-astronomy	robotsllmsaihumans	emailphone	none
caha.es ↗	62 match 1 shared topics	Calar Alto Astronomical Observatory	Spain es	space-and-astronomy Joomla	robotsllmsaihumans	emailphone	none
observatoriosobradillo.com ↗	62 match 1 shared topics	Observatorio Astronómico Sobradillo \| Explora el cosmos	es	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
cieloprofundo.net ↗	62 match 1 shared topics	Cielo Profundo – Astronomia por Juanjo González Díaz	es	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
culturaccosmos.es ↗	61 match 1 shared topics	Cultura con C de Cosmos C³	Spain es	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.