Glossary · Digital Marketing

OMCP Glossary: Key Digital Marketing Terms

intermediate

A free OMCP glossary defining the key digital-marketing terms - SEO, PPC, CRO, attribution, marketing automation, PDUs and more - in plain English.

By The Exam Atlas Editorial Team · Verified 2026-06-06

Key OMCP terms in plain English. OMCP is vendor-neutral and spans several disciplines, so it helps to know both the certification vocabulary (OMCA, specialty exam, PDU) and the core digital-marketing terms the exams test.

termdefinition
OMCPOnline Marketing Certified Professional, the professional-level credential for experienced digital marketers who can work as specialists with minimal supervision.
OMCAOnline Marketing Certified Associate, the associate-level credential for generalists who can work in a supervised role; the lighter starting point.
Vendor-neutralNot tied to one company’s product; OMCP certifies competency across disciplines on published standards rather than on a single ad platform.
Base examThe 64-68 question exam (around 75 minutes) covering the fundamentals of the core online-marketing disciplines.
Specialty examOne of two shorter exams (17-28 questions each) in elected disciplines, certifying depth in two areas of your choosing.
Competency standardsOMCP’s published descriptions of the skills required in each discipline, which the exams and certification are built on.
SEO (Search Engine Optimization)Improving a site’s visibility in organic search results through technical, on-page and off-page work.
Paid search / PPCPay-per-click advertising on search and other networks, where advertisers bid to show ads against queries or audiences.
Quality ScoreA paid-search measure of ad and landing-page relevance and expected performance that influences ad rank and cost.
Content marketingCreating and distributing valuable content to attract and engage an audience across the funnel.
Social media marketingUsing organic and paid activity on social platforms to build audience, engagement and results.
Email marketingSending targeted, permission-based email to nurture and convert an audience.
Marketing automationSoftware-driven, triggered marketing workflows (such as lifecycle emails) based on user behaviour and rules.
Conversion rate optimisation (CRO)Systematically improving the share of visitors who take a desired action, often through testing.
A/B testA controlled experiment comparing two versions to see which performs better on a chosen metric.
Digital analyticsThe collection, measurement and analysis of digital-marketing data to inform decisions.
AttributionAssigning credit for a conversion across the marketing touchpoints that contributed to it.
KPI (Key Performance Indicator)A metric chosen to track progress toward a specific marketing or business objective.
ROAS (Return on Ad Spend)Revenue generated for each unit of advertising spend, a core paid-media efficiency metric.
Mobile marketingReaching and engaging audiences on mobile devices and apps, including mobile-specific channels.
Marketing strategyThe plan that aligns channels, audiences and tactics to business goals across disciplines.
Proctored examAn exam supervised (here, by a remote online proctor) to verify the candidate’s identity and conditions.
Professional Development Unit (PDU)The unit of continuing education used to renew OMCP; 100 per year keep the credential active between exam cycles.
RecertificationMaintaining the credential by earning the required PDUs (or retaking the exam) within each cycle.
Registered Education ProviderA training provider whose digital-marketing courses OMCP has reviewed and approved, supplying the required didactic hours.

FAQ

What is a specialty exam on the OMCP?
A specialty exam is one of two shorter exams (17-28 questions each) you sit in disciplines you elect, such as SEO or paid search, alongside the broad base exam. The specialties certify depth in two areas of your choosing, while the base exam covers the core disciplines. Confirm the current discipline list with OMCP.

Sources