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Sky Alert — Next Sky Event Countdown & Reminders | skyalert.io — 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
nightskyastronomy.co.uk ↗	63 match 1 shared topics	Night Sky Astronomy	United Kingdom en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
blackholesocietynews.com ↗	62 match 1 shared topics	NASASpaceflight LLC - Next Spaceflight	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
nightskyshow.co.uk ↗	62 match 1 shared topics	Home - The Night Sky Show	United Kingdom en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
aaasky.nyc ↗	61 match 1 shared topics	AAA SKY ⋆ Home	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	partial · 8
adampaul.space ↗	61 match 1 shared topics	Adam Paul — adampaul.space	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
mckinleystation.org ↗	61 match 1 shared topics	McKinley Consortium — Permanent Human Civilization Beyond Earth	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
copy-over.com ↗	61 match 1 shared topics	COPY, OVER — Your Cosmic Relay Station \| SETI Radio Signal Explorer	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
1000beats.red ↗	61 match 1 shared topics	1000beats.red — Mars Decimal Time	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
2ndspace.space ↗	61 match 1 shared topics	2NDSpace \| Flight-Proven CubeSat & Nanosatellite Hardware – Ready for Your Next Mission	en	space-and-astronomy Wix	robots llmsaihumans	emailphone	none
3iatlas.life ↗	61 match 1 shared topics	ATLAS Flyby — Aliens or Stupid Rock?	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
acnet.ovh ↗	61 match 1 shared topics	KESTREL Program — Mission in preparation	en	space-and-astronomy	robotsllmsaihumans	emailphone	partial · 8
nebulink.co.uk ↗	61 match 1 shared topics	NebuLink — Space Market Intelligence	United Kingdom en	space-and-astronomy Spree Commerce	robotsllmsaihumans	emailphone	none
3i-atlas.tech ↗	61 match 1 shared topics	3I/ATLAS — Claims, Anomalies & Sources	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
samhofmann.com ↗	61 match 1 shared topics	Sam Hofmann — Engineer, Creator, Explorer	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
100yss.org ↗	61 match 1 shared topics	100 Year Starship — Humanity's Interstellar Future	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
1kmup.info ↗	61 match 1 shared topics	UNOLL — United Nations Office of Launches and Landings	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
3dsolarsystem.online ↗	61 match 1 shared topics	Our Solar System — Realistic 3D Solar System Viewer	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
acee.space ↗	61 match 1 shared topics	ACEE Space — Commercial Brand Delivery To Space	en	space-and-astronomy Spree Commerce	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.