Manufacturing SEO Glossary
Defined terms in manufacturing and industrial search: the conversion event, the page types, the certifications that gate a market, and the vocabulary buyers search in.
Manufacturing SEO is the practice of making a manufacturer, industrial supplier, or distributor discoverable in classic and generative search engines by the engineers and procurement professionals who issue requests for quote. This glossary defines the vocabulary that practice runs on.
Industrial search has its own vocabulary, and most of it is precise. A tolerance, a certification scope, and a request for quote each mean something specific, and the specificity is what makes them searchable.
Terms are defined here as they are used by buyers rather than by marketers. Where a term has a common loose usage and a precise one, the precise one is given and the difference is stated.
- AI Overview
An AI Overview is the generated summary Google places above search results. Roughly 80 percent of manufacturing SEO commercial queries carry one, and their presence reduces click-through on informational industrial queries.
- AS9100
AS9100 defined: the aerospace quality management standard, what AS9100D adds to ISO 9001, why certificate scope decides eligibility, and how it differs from Nadcap special process accreditation.
- Capability Page
A capability page states one manufacturing process with its materials, tolerances, capacity, and certifications. It is the unit that ranks and gets cited, not the company overview page.
- Cleanroom Classification
A cleanroom classification states the permitted airborne particle count in a controlled space, as an ISO class or the older Federal Standard 209E class. It is a capability buyers filter on before capability is discussed.
- Contract Manufacturer
A contract manufacturer produces parts or assemblies to another company's design and specification. It competes on capability, certification, capacity, and lead time rather than on a product of its own.
- Cross-Reference
A cross-reference maps one manufacturer's part number to an equivalent from another. For distributors and suppliers it is a search asset, because buyers search the number they already have rather than the one being sold.
- Domain Rating
Domain Rating is a third-party score estimating a site's backlink strength. It is not a Google ranking factor, and in manufacturing search a specialist page at DR 29 routinely outranks a general directory at DR 66.
- Entity Consistency
Entity consistency is the agreement between how a company is identified across every source that names it. Supplier discovery in large language models depends on it, and inconsistency splits one company into several weak entities.
- IATF 16949
IATF 16949 is the automotive quality management standard. Certification qualifies a supplier for automotive production RFQs, and it carries PPAP and APQP obligations that ISO 9001 alone does not.
- Incumbent Supplier
The incumbent is the supplier currently holding the work. Displacing one is the default competitive situation in manufacturing, and it explains why the industrial buying cycle runs long even when the buyer is dissatisfied.
- ISO 13485
ISO 13485 is the quality management standard for medical device manufacturing. It qualifies a supplier for medical device requests for quote, and its scope statement determines which work the certificate actually covers.
- ITAR
ITAR is the US regulation controlling defense-related exports. ITAR registration restricts publication of controlled technical data, which makes it the one case where a manufacturer's marketing and its compliance obligations directly conflict.
- Job Shop
A job shop is a manufacturer producing low to medium volume custom work to customer specification, typically serving a regional radius and specific process specialties.
- Lead Time
Lead time is the elapsed time between order placement and delivery. It is one of the four attributes contract manufacturers compete on, and quoted lead time is frequently the deciding factor between qualified suppliers.
- Line Card
A line card is the list of manufacturer brands a distributor is authorised to sell. It is the distributor's core search asset, because industrial distributors rank for brand plus part number and line card queries.
- Part Number Page
A part number page is a page dedicated to a single catalogue item. At scale these pages are the largest duplication risk on an industrial site, because a part number page requires unique specification content to avoid it.
- RFQ (Request for Quote)
A request for quote is a buyer's formal request for pricing against a specification. In manufacturing it is the primary conversion event, and it carries drawings, tolerances, quantities, and delivery requirements.
- RFQ vs RFP vs RFI
The three requests differ by who owns the specification. An RFI gathers information, an RFP asks a supplier to propose a solution, and an RFQ prices a specification the buyer has already fixed.
- Supplier Qualification Audit
A supplier qualification audit is the buyer's assessment of a supplier before production work is awarded. It is the step that makes switching suppliers expensive and the reason the industrial buying cycle runs long.
- Surface Finish (Ra)
Ra is the arithmetic average roughness of a machined surface, stated in microinches or micrometres. It is a specification buyers filter on and one of the attributes most often omitted from capability pages.
- Tolerance
A tolerance is the permissible deviation from a nominal dimension. It is the specification buyers filter suppliers on, and stating achievable tolerances in text is what makes a shop matchable.
This set is being built out. Terms are added as the pages that use them ship, so that every definition has somewhere to link and every term listed here resolves.
The vocabulary matters beyond definition. Manufacturing keyword research starts from the language buyers actually use in quote requests, and these are the terms that recur. The wider practice is set out in manufacturing SEO.
Last reviewed . Published by ManufacturingSEO.ai.