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Defendern alternatives & similar sites

Defender N — 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 Chemistry →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
alco.cat ↗	60 match 1 shared topics	ALCO Online\| Distribuidores de suministros para laboratorio	es	chemistry	robotsllmsaihumans	emailphone	none
marfran.global ↗	60 match 1 shared topics	MARFRAN - NAFTALEN SULFONATOS - DISPERSANTES.	es	chemistry	robotsllmsaihumans	emailphone	none
xiangyu-chem.com ↗	60 match 1 shared topics	Materias primas básicas de China, productos químicos de tratamiento de agua de calderas, fabricantes de productos químicos de aguas residuales, proveedores, fábrica - Xiangyu	China~ es	chemistry	robotsllmsaihumans	emailphone	partial · 3
mejsa.net ↗	60 match 1 shared topics	Max E. Jiménez, S.A. - Max E. Jiménez, S.A.	es	chemistry WordPress WooCommerce	robotsllmsaihumans	email phone	none
minerialaboratorioquimico.com ↗	60 match 1 shared topics	Reactivos Químicos Perú \| Productos de Laboratorio	PE~ es	chemistry	robotsllmsaihumans	emailphone	none
sq-carbonblack.com ↗	60 match 1 shared topics	China Carbono Negro Fabricantes, Negro pigmento Proveedores, Polvo Carbono Negro Fábrica \| SANQIANG	China~ es	chemistry	robotsllmsaihumans	email phone	partial · 3
ssqsr.com ↗	60 match 1 shared topics	Soporte y Servicios Químicos S.R. de S.A. de C.V.	es	chemistry	robotsllmsaihumans	emailphone	none
csrchemical.com ↗	60 match 1 shared topics	Notificación de productos químicos. Elaboración de Fichas de Seguridad	es	chemistry	robots llmsaihumans	email phone	none
ctenma.net ↗	60 match 1 shared topics	Comercial Tecnoquímica Enma – Material para laboratorio	es	chemistry WordPress	robotsllmsaihumans	email phone	none
desengrasantediablito.com ↗	60 match 1 shared topics	DESENGRASANTE DIABLITO – DESENGRASANTES Y PRODUCTOS QUíMICOS DIABLITO desengrasantediablito.es https://www.desengrasantediablito.es En Diablito, fabricamos desengrasantes para grasas persistentes. Con la garantía de una trayectoria de 35 años de experiencia.	es	chemistry WordPress WooCommerce	robotsllmsaihumans	emailphone	none
dymax.cr ↗	60 match 1 shared topics	Dymax - Dymax	es	chemistry	robotsllmsaihumans	emailphone	none
e-seqc.org ↗	60 match 1 shared topics	SEQC Sociedad Española de Químicos Cosméticos	es	chemistry	robotsllmsaihumans	email phone	none
endfirstchem.com ↗	60 match 1 shared topics	End First Chemicals – Química aplicada y desarrollos específicos	es	chemistry WordPress	robotsllmsaihumans	emailphone	none
enjoysulphurblack.com ↗	60 match 1 shared topics	China Azufre Tintes Fabricantes, Disolvente Tintes Proveedores, Básico Tintes Fábrica - DISFRUTAR	China~ es	chemistry	robotsllmsaihumans	email phone	partial · 3
envasadorassemiautomaticas.com ↗	60 match 1 shared topics	Llenadoras Semi-automáticas Automáticas para Alimentación, Cosmética, Farmacéutica y Químicos — E V S	es	chemistry	robots llmsaihumans	emailphone	none
myochemicalsnicaragua.com ↗	60 match 1 shared topics	MYOChemicals de Nicaragua - Productos Químicos Industriales y Soluciones Ambientales	es	chemistry	robotsllmsaihumans	emailphone	none
neodeter.pe ↗	60 match 1 shared topics	Neo Deter del Peru \| Soluciones quimicas para limpieza y desinfeccion industrial	es	chemistry	robotsllmsaihumans	emailphone	none
100ciaquimica.net ↗	60 match 1 shared topics	100cia Química	es	chemistry	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.