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Webb Signals — 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
webbcompare.com ↗	66 match 1 shared topics	Webb Compare	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
webbdeepsky.com ↗	65 match 1 shared topics	The Webb Deep-Sky Society	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
jameswebbtracker.com ↗	64 match 1 shared topics	NASA James Webb Telescope Tracker	en	space-and-astronomy	robots llmsaihumans	emailphone	none
pa0pzd.com ↗	64 match 1 shared topics	PA0PZD – Signals Collection – ww2 signals collection by PA0PZD	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
jameswebbdiscovery.com ↗	63 match 1 shared topics	James Webb Space Telescope Discoveries Tracker	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
satdfr.com ↗	63 match 1 shared topics	Design for Recovery - SatDFR	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
aerospaceeducationcompetitions.com ↗	62 match 1 shared topics	Space Settlement Design Competitions ®	en	space-and-astronomy Squarespace Magento	robotsllmsaihumans	emailphone	none
aiaa-sf.org ↗	62 match 1 shared topics	American Institute of Aeronautics and Astronautics – San Francisco – Celebrating aerospace ingenuity and collaboration	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
alanfitzsimmons.com ↗	62 match 1 shared topics	Professor Alan Fitzsimmons – One rock/iceball at a time	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
weatherballoon-shop.com ↗	62 match 1 shared topics	Equipment for your own flight into the stratosphere \| Stratoflights	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
welandedonmars.com ↗	62 match 1 shared topics	We Landed on Mars	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
3lementx.com ↗	62 match 1 shared topics	Innovative Engineering Solutions and Space Technology by Element X \| Element X	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
outerspacecentral.com ↗	62 match 1 shared topics	Outer Space Central.com - The Sun, Black Holes, Active Galaxies, Supernovas, GRBs, Dark Matter, The Cosmic Web	en	space-and-astronomy	robotsllmsaihumans	emailphone	partial · 8
satfuture.com ↗	62 match 1 shared topics	Space & Satellite Futures \| Space & Satellite Professionals International	United States~ en	space-and-astronomy Drupal	robotsllmsaihumans	emailphone	none
skywatchersunited.com ↗	62 match 1 shared topics	SkyWatchersUnited com	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
cscaobs.org ↗	62 match 1 shared topics	Home - Marmot Observatory	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
adrik.cloud ↗	62 match 1 shared topics	Adrik Mohanta - Captain Adrik's Space Explorer Base	en	space-and-astronomy	robotsllmsaihumans	emailphone	partial · 8
all-startelescopes.com ↗	62 match 1 shared topics	All-Star Telescope Canada: Shop Astronomy, Astrophotography, Birding	en	space-and-astronomy Shopify	robots llmsaihumans	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.