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Rack55 alternatives & similar sites

Rack55 — Open Hardware Mechanical Specification — 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 Mechanical And Industrial Engineering Industry →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
jasmechanicalservices.com ↗	69 match 1 shared topics	JAS Mechanical Services	en	mechanical-and-industrial-engineering-industry	robotsllmsaihumans	emailphone	none
jakexie.com ↗	69 match 1 shared topics	Jake Xie — Mechanical Engineer	en	mechanical-and-industrial-engineering-industry	robotsllmsaihumans	emailphone	none
csmmechanical.com ↗	69 match 1 shared topics	CSM Mechanical	en	mechanical-and-industrial-engineering-industry WordPress	robotsllmsaihumans	emailphone	none
watsonmechanicalinc.com ↗	69 match 1 shared topics	Watson Mechanical Inc	en	mechanical-and-industrial-engineering-industry	robotsllmsaihumans	email phone	none
ourmechanicalworld.com ↗	69 match 1 shared topics	Our Mechanical World	en	mechanical-and-industrial-engineering-industry WordPress WooCommerce	robotsllmsaihumans	emailphone	none
mechanicalinclination.com ↗	68 match 1 shared topics	Mechanical Inclination	en	mechanical-and-industrial-engineering-industry Ghost	robotsllmsaihumans	emailphone	none
advantagemechanicalllc.com ↗	68 match 1 shared topics	Advantage Mechanical – Becker, MN	en	mechanical-and-industrial-engineering-industry WordPress WooCommerce	robotsllmsaihumans	emailphone	none
dhtmechanical.com ↗	68 match 1 shared topics	DHT Mechanical	en	mechanical-and-industrial-engineering-industry	robotsllmsaihumans	emailphone	none
marronemechanical.com ↗	68 match 1 shared topics	Home - Marrone Mechanical	United States~ en	mechanical-and-industrial-engineering-industry WordPress	robotsllmsaihumans	email phone	none
mehmetraif.info ↗	68 match 1 shared topics	Mehmet Raif Taşdemir — Mechanical Engineer & FEA Specialist	Turkey~ en	mechanical-and-industrial-engineering-industry	robotsllmsaihumans	emailphone	none
jagengrg.com ↗	68 match 1 shared topics	Mechanical Engineer	en	mechanical-and-industrial-engineering-industry Weebly	robotsllmsaihumans	emailphone	none
jcmsinc.com ↗	68 match 1 shared topics	JC Mechanical Systems	en	mechanical-and-industrial-engineering-industry WordPress	robotsllmsaihumans	email phone	none
gabrielseng.com ↗	68 match 1 shared topics	Gabriel Seng — Mechanical Engineer · UVA	en	mechanical-and-industrial-engineering-industry	robotsllmsaihumans	emailphone	none
jasperbayless.com ↗	68 match 1 shared topics	Jasper Bayless \| Mechanical Design, Fabrication, and Bikes	en	mechanical-and-industrial-engineering-industry	robotsllmsaihumans	emailphone	none
sbmech.com ↗	68 match 1 shared topics	Smith Boughan \| Mechanical Service Solutions	en	mechanical-and-industrial-engineering-industry WordPress	robotsllmsaihumans	email phone	none
mechanicalengineer.net ↗	68 match 1 shared topics	Jose Andre Bonillas — Mechanical Engineer	en	mechanical-and-industrial-engineering-industry	robotsllmsaihumans	email phone	none
sjalliance.net ↗	68 match 1 shared topics	SJ Alliance Mechanical - HVACR	en	mechanical-and-industrial-engineering-industry WordPress	robotsllmsaihumans	emailphone	none
sjalliancemechanical.net ↗	68 match 1 shared topics	SJ Alliance Mechanical - HVACR	en	mechanical-and-industrial-engineering-industry WordPress	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.