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Sites similar to cirn.ca

Cirn alternatives & similar sites

Canadian Internet Rocketry Network — 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
ears.org.uk ↗	67 match 1 shared topics	East Anglian Rocketry Society	United Kingdom en	space-and-astronomy	robotsllmsaihumans	emailphone	none
a1rocketry.com ↗	66 match 1 shared topics	Home \| A1 Rocketry	en	space-and-astronomy Wix Wix Stores	robotsllmsaihumans	emailphone	none
astroversenetwork.org ↗	65 match 1 shared topics	Astroverse Network	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
cascadeastronomy.org ↗	65 match 1 shared topics	Home - Cascade Astronomy & Rocketry Academy	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
asteriarocketry.com ↗	64 match 1 shared topics	Asteria Rocket Team	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
hybrids.com ↗	64 match 1 shared topics	Hybrid Rockets - eAc	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
casi-ltd.ca ↗	64 match 1 shared topics	CASI - Canadian Advanced Satellite Imaging Ltd.	Canada en	space-and-astronomy	robotsllmsaihumans	emailphone	none
epflrocketteam.ch ↗	64 match 1 shared topics	Home \| EPFL Rocket Team	Switzerland en	space-and-astronomy	robotsllmsaihumans	emailphone	none
beyondblue.ca ↗	64 match 1 shared topics	Beyond Blue Aerospace – Aviation – Rocketry – Spaceflight	Canada en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
qprl.org ↗	64 match 1 shared topics	Monarch Space Systems \| Technology Beyond Rocketry™	en	space-and-astronomy	robots llmsaihumans	emailphone	none
cascaeducation.ca ↗	63 match 1 shared topics	How Canadians Discover Astronomy, From Stars to Space	Canada en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
quantumleaprocketry.com ↗	63 match 1 shared topics	Giant Leap Rocketry: High Power Rocketry supplier of parts and kits – GiantLeapRocketry	en	space-and-astronomy Shopify	robots llmsaihumans	emailphone	none
canadianastronomy.ca ↗	63 match 1 shared topics	Canadian Astronomy \| Thoughts on astronomy, astrophotography and spaceflight from Andrew Symes	Canada en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
hyperspacerocketdesigns.com ↗	63 match 1 shared topics	Home \| Hyperspace Rocket Designs and Tea Bar	United States~ en	space-and-astronomy Weebly Square Online	robotsllmsaihumans	emailphone	none
iafastro.org ↗	63 match 1 shared topics	IAF: International Astronautical Federation	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
iayc.org ↗	63 match 1 shared topics	IAYC \| International Astronomical Youth Camp	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
astroguidez.com ↗	63 match 1 shared topics	AstroguideZ – Learn Astronomy with an International Ambassador \| Astroguidez	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
eisci.com ↗	63 match 1 shared topics	Equinox Interscience, Inc.	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.