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MARSATHON - first marathon on Mars — 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
thgnetworks.com ↗	65 match 1 shared topics	THG Networks — Messier Marathon Observer's Log	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
onotherplanets.com ↗	64 match 1 shared topics	Your Age on Other Planets	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
1-agarwood.com ↗	63 match 1 shared topics	KYARA AGARWOOD= ADLERHOLZ / KYNAM= QI NAN / GAHARU= ALOEWOOD / OUD= OUDH	en	space-and-astronomy Wix	robots llmsaihumans	emailphone	none
1-kyara.com ↗	63 match 1 shared topics	KYARA AGARWOOD= ADLERHOLZ / KYNAM= QI NAN / GAHARU= ALOEWOOD / OUD= OUDH	en	space-and-astronomy Wix	robots llmsaihumans	emailphone	none
3af-spacepropulsion.com ↗	62 match 1 shared topics	Home - 10th EDITION OF THE SPACE PROPULSION CONFERENCE	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
feralinnovation.com ↗	62 match 1 shared topics	FERAL - FERALHOME	en	space-and-astronomy Weebly	robotsllmsaihumans	emailphone	none
thexay.com ↗	62 match 1 shared topics	the xay	en	space-and-astronomy	robotsllmsaihumans	emailphone	partial · 8
thinkaboutit-ufos.com ↗	62 match 1 shared topics	Think Aboutit UFOs \| The Craft. The Physics. The Pattern They Don't Want Mapped.	en	space-and-astronomy WordPress WooCommerce	robots llmsaihumans	emailphone	none
spottingscopeworld.com ↗	62 match 1 shared topics	Best Selling Spotting Scopes US - SPOTTING SCOPES	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
amostech.com ↗	62 match 1 shared topics	AMOS Conference - AMOS Conference	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
bluecanyontech.com ↗	62 match 1 shared topics	Blue Canyon Technologies » Spacecraft buses, systems and solutions	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	partial · 8
cometography.com ↗	62 match 1 shared topics	Cometography	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
1000beats.red ↗	62 match 1 shared topics	1000beats.red — Mars Decimal Time	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
3iatlas.life ↗	62 match 1 shared topics	ATLAS Flyby — Aliens or Stupid Rock?	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
copernicusplate.com ↗	62 match 1 shared topics	Copernicus Plate \| Conceived by Lutz-Rainer Müller and Stian Ådlandsvik	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
springcountdown.com ↗	61 match 1 shared topics	Spring Countdown - The Days Are Getting Longer	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
3ap.org ↗	61 match 1 shared topics	Amateur Astronomers Association of Pittsburgh – Your Bridge to the Stars	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	partial · 8
tostarerc.com ↗	61 match 1 shared topics	Tu Xingxing \| $TOSTAR	en	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.