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Calar Alto Astronomical Observatory — 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
astrotemisas.com ↗	69 match 1 shared topics	Observatorio astronómico de Temisas \| Astrotemisas	es	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
observatoriosobradillo.com ↗	69 match 1 shared topics	Observatorio Astronómico Sobradillo \| Explora el cosmos	es	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
astrodirectorio.com ↗	69 match 1 shared topics	astrodirectorio - Directorio de observatorios astronómicos	es	space-and-astronomy WordPress	robots llmsaihumans	emailphone	partial · 8
observatorioguirguillano.org ↗	69 match 1 shared topics	Observatorio Astronómico de Guirguillano	es	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
astro-guides.com ↗	68 match 1 shared topics	Tenerife. Observación de estrellas. Astronomía. Teide	es	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
astroetakarina.com ↗	68 match 1 shared topics	Observa el universo – Tour de Astronomía	es	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
elcielodesalamanca.com ↗	68 match 1 shared topics	El cielo de Salamanca - Observatorio astronómico "El cielo de Salamanca"	es	space-and-astronomy Jimdo	robotsllmsaihumans	emailphone	none
astronomialanzarote.com ↗	67 match 1 shared topics	Inicio - Astronomia Lanzarote	es	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
astrocracia.com ↗	67 match 1 shared topics	Astrocracia: Astronomia para todos	es	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
astronomiacolon.com ↗	67 match 1 shared topics	astronomiacolon	es	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
astromania.co ↗	66 match 1 shared topics	Astromanía - Tienda de Astronomía	Colombia es	space-and-astronomy PrestaShop	robotsllmsaihumans	emailphone	none
astronomiaok.com ↗	66 match 1 shared topics	AstronomíaOk	es	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
astronorte.com ↗	66 match 1 shared topics	Astroturismo en La Palma - Observación de estrellas	es	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
elcaracas.com ↗	66 match 1 shared topics	Observatorio Astronómico El Mirador de Murcia. MPC J78. AAVSO SQU	es	space-and-astronomy	robotsllmsaihumans	emailphone	none
diadelaastronomia.cl ↗	66 match 1 shared topics	Día de la Astronomía	Chile es	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
astroversia.com ↗	66 match 1 shared topics	Observación de estrellas en Murcia l Astroversia	es	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
observatoriovalledelcabriel.com ↗	66 match 1 shared topics	Observatorio del Valle del Cabriel	es	space-and-astronomy	robotsllmsaihumans	emailphone	none
astroblob.com ↗	66 match 1 shared topics	Inicio \| AstroBlob	es	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.