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Propformance alternatives & similar sites

Propformance Testing LLC – Propformance Testing LLC — 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
kiwa.com ↗	70 match shared topic	Kiwa, a global specialist in Testing, Inspection, Certification (TIC) and Training.	en	mechanical-and-industrial-engineering-industry	robotsllmsaihumans	emailphone	none
applus.com ↗	70 match shared topic	Applus+: Testing, Inspection and Certification Worldwide	en	mechanical-and-industrial-engineering-industry	robotsllmsaihumans	emailphone	none
asnt.org ↗	70 match shared topic	ASNT: Advancing Nondestructive Testing for a Safer World	United States~ en	mechanical-and-industrial-engineering-industry Storyblok	robotsllmsaihumans	emailphone	none
zwickroell.com ↗	70 match shared topic	ZwickRoell Materials Testing \| ZwickRoell	en	mechanical-and-industrial-engineering-industry TYPO3	robotsllmsaihumans	emailphone	none
polymer-testing.com ↗	70 match shared topic	Accredited Calibration Services \| Polymer Testing Instruments	en	mechanical-and-industrial-engineering-industry HubSpot	robotsllmsaihumans	emailphone	none
washingtoncalibration.com ↗	70 match shared topic	Accredited Calibration Services \| Washington Calibration, LLC	en	mechanical-and-industrial-engineering-industry HubSpot	robots llmsaihumans	emailphone	none
helmut-fischer.com ↗	70 match shared topic	Measuring solutions for surface testing \| Helmut Fischer	en	mechanical-and-industrial-engineering-industry TYPO3	robotsllmsaihumans	emailphone	none
zetec.com ↗	70 match shared topic	Top Nondestructive Testing (NDT) & Inspection Solutions Company \| Zetec	en	mechanical-and-industrial-engineering-industry WordPress	robotsllmsaihumans	emailphone	none
appluslaboratories.com ↗	70 match shared topic	Applus+ Laboratories \| Testing, Engineering and Certification.	en	mechanical-and-industrial-engineering-industry	robotsllmsaihumans	emailphone	none
speedgoat.com ↗	70 match shared topic	Speedgoat - Real-Time Simulation and Testing	en	mechanical-and-industrial-engineering-industry DotNetNuke/DNN	robotsllmsaihumans	emailphone	none
saifcomep.com ↗	70 match shared topic	Saifco – Electromechanical Works LLC	en	mechanical-and-industrial-engineering-industry WordPress WooCommerce	robotsllmsaihumans	email phone	none
tabbcertified.org ↗	70 match shared topic	TABB Certified – Testing, Adjusting and Balancing Bureau	en	mechanical-and-industrial-engineering-industry WordPress WooCommerce	robotsllmsaihumans	emailphone	none
amspecgroup.com ↗	70 match shared topic	Global Testing, Inspection & Certification Services \| AmSpec	en	mechanical-and-industrial-engineering-industry WordPress	robotsllmsaihumans	emailphone	none
fischerinstrumentation.co.uk ↗	70 match shared topic	Measuring solutions for surface testing \| Helmut Fischer	United Kingdom en	mechanical-and-industrial-engineering-industry TYPO3	robotsllmsaihumans	emailphone	none
fischer-technology.com ↗	70 match shared topic	Measuring solutions for surface testing \| Helmut Fischer	en	mechanical-and-industrial-engineering-industry TYPO3	robots llmsaihumans	emailphone	none
uni-trend.com ↗	70 match shared topic	UNI-T \| Measurement Meters, Testing Instruments and Thermal Imaging – Uni-Trend: Your trusted partner for test and measurement solutions.	en	mechanical-and-industrial-engineering-industry WordPress WooCommerce	robotsllmsaihumans	emailphone	none
qai.org ↗	70 match shared topic	QAI Product Testing, Certification and Inspection Services \| Laboratories	en	mechanical-and-industrial-engineering-industry WordPress WooCommerce	robotsllmsaihumans	email phone	none
ethernde.com ↗	70 match shared topic	Eddy Current Non-Destructive Testing and Flaw Detection Equipment \| Ether NDE	en	mechanical-and-industrial-engineering-industry Concrete5	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.