DMI CDMP study materials
DMI CDMP study resources

DMI CDMP cheat sheet

DMI CDMP · Keep the key ideas within reach.

Quick reference

Digital Strategy

  • SMART objectives require Specific, Measurable, Achievable, Relevant, Time-bound wording; an objective lacking any one element is not testable.

  • SWOT separates internal factors (Strengths, Weaknesses) from external factors (Opportunities, Threats); PESTLE covers Political, Economic, Social, Technological, Legal, Environmental macro forces.

  • Porter's Five Forces: rivalry, supplier power, buyer power, threat of new entrants, threat of substitutes; each force raises or lowers industry profitability.

  • A KPI is a metric tied to a strategic objective; a metric without a target and owner is diagnostic, not a KPI.

  • Customer lifetime value (CLV) = average order value x purchase frequency x retention lifespan; compare CLV to customer acquisition cost, and act when CLV:CAC falls below roughly 3:1.

  • Ansoff matrix: market penetration (existing product/market), product development (new product, existing market), market development (existing product, new market), diversification (both new).

  • The digital maturity model moves from ad-hoc to repeatable to optimized to transformative; each stage adds governance, measurement, and automation.

  • Roadmap sequencing rule: prioritize initiatives by (impact x confidence) / effort, and gate each phase on a defined success metric before scaling.

Quick reference

Search Engine Optimization (SEO)

  • A page targets one primary keyword in the title, H1, URL, and first paragraph; secondary variants appear naturally in H2s and body copy.

  • Title tags: roughly 50-60 characters before truncation; meta descriptions roughly 150-160 characters; neither is a direct ranking factor, but both affect click-through rate.

  • Crawlability vs indexability: robots.txt blocks crawling, a noindex meta tag blocks indexing; blocking crawl of a page prevents search engines from seeing its noindex tag.

  • Canonical tags consolidate duplicate URLs to one preferred version; they are hints, not directives, and conflicting signals (canonical plus noindex) cause unpredictable handling.

  • Redirect rule: 301 for permanent moves (passes most link equity), 302 for temporary; avoid redirect chains because each hop dilutes and slows discovery.

  • Page experience signals include Core Web Vitals: LCP (loading, good <= 2.5s), INP (interactivity, good <= 200ms), CLS (visual stability, good <= 0.1).

  • Internal linking distributes authority and shortens click depth; aim for every important page within three clicks of the homepage.

  • Structured data in JSON-LD (schema.org types such as Article, Product, FAQPage) enables rich results; markup must match visible page content.

  • Keyword difficulty rises with the authority of ranking pages; long-tail queries with lower volume typically convert at higher rates than head terms.

Quick reference

Paid Search (PPC)

  • Quality Score (1-10) is built from expected click-through rate, ad relevance, and landing page experience; higher scores lower cost per click.

  • Ad Rank = bid x Quality Score plus ad extensions/formats; the second-place Ad Rank divided by your Quality Score plus a small increment sets your actual CPC.

  • Match types: exact [keyword], phrase "keyword", broad keyword; close variants are matched automatically, so negative keywords control wasted spend.

  • Negative keywords block matching; a negative phrase or negative exact prevents the term from triggering the ad, and shared negative lists apply across campaigns.

  • CTR = clicks / impressions; CPC = cost / clicks; CVR = conversions / clicks; CPA = cost / conversions; ROAS = revenue / cost.

  • ROAS target = 1 / profit margin when optimizing to break even on ad spend; a 25% margin implies a break-even ROAS of 4.0.

  • Conversion tracking must count a defined action (form submit, purchase) with an attribution model; last-click credits the final interaction, data-driven models distribute credit across touchpoints.

  • Budget rules: limited-by-budget status means lost impression share; raising bids on high-ROAS terms before widening budget preserves efficiency.

  • Search terms report reveals actual queries; add converting queries as exact-match keywords and non-converting queries as negatives.

Quick reference

Social Media Marketing

  • Organic reach is the unpaid audience a post reaches; paid reach is purchased; engagement rate = (likes + comments + shares + saves) / reach or / impressions, so state the denominator.

  • Frequency and reach are distinct: frequency = impressions / reach; high frequency with flat reach signals creative fatigue.

  • Platform formats differ: short-form video favors hook retention in the first seconds, while carousels favor swipe-through depth and saves.

  • Community management response time is a service metric; define a first-response SLA and route negative sentiment to a documented escalation path.

  • Influencer tiers: nano (1K-10K), micro (10K-100K), macro (100K-1M), mega (1M+); engagement rate generally falls as follower count rises.

  • Social listening classifies mentions as positive, neutral, or negative and tracks share of voice against named competitors.

  • A/B testing on social requires one variable per test (creative, copy, or audience) and enough volume for the result to be meaningful.

  • Paid social targeting options include interest, lookalike/actalike, retargeting, and custom audiences from customer lists; each has different consent requirements.

Quick reference

Content Marketing

  • Content funnel mapping: awareness content answers broad questions, consideration content compares options, decision content removes purchase risk (pricing, demos, case studies).

  • Content audit classifications: keep, update, consolidate, redirect, or delete; pages with impressions but poor clicks are update candidates.

  • Editorial calendar fields: topic, target keyword, persona, format, owner, publish date, and distribution channel.

  • Content repurposing: one long-form asset can yield social posts, email snippets, video scripts, and infographics; each version needs channel-specific framing.

  • Headline formulas that test well include how-to, listicle, question, and data-led claims; specificity (numbers, timeframes) raises click-through.

  • Evergreen content retains traffic over time; newsjacking content decays fast and should be tagged for periodic review.

  • Content scoring combines traffic, engagement, conversions, and backlinks; weight by business goal rather than raw pageviews.

  • Brand voice guidelines define tone, vocabulary, and prohibited claims; consistency across channels is a measurable brand metric.

Quick reference

Email Marketing

  • Deliverability metrics: bounce rate (hard vs soft bounces), complaint rate, and sender reputation; hard bounces are permanent and addresses should be suppressed.

  • Open rate = opens / delivered (not sent); click-to-open rate = clicks / opens; click-through rate = clicks / delivered.

  • List hygiene: remove hard bounces and long-term inactive subscribers; re-engagement campaigns precede suppression to protect sender reputation.

  • Consent models: opt-in and confirmed (double) opt-in; purchased lists violate consent-based sending and damage deliverability.

  • Segmentation variables include lifecycle stage, purchase history, engagement recency (RFM: recency, frequency, monetary), and geography.

  • A/B testing requires one variable and a statistically adequate sample; subject line tests measure opens, body tests measure clicks.

  • Authentication records SPF, DKIM, and DMARC align sending domains and reduce spoofing and spam placement.

  • Automation triggers include welcome series, abandoned cart, post-purchase, and win-back; each sequence needs an exit condition to avoid over-mailing.

Quick reference

Data & Web Analytics

  • Metric hierarchy: dimensions describe (source, medium, page, device), metrics measure (sessions, users, conversions); a report needs both.

  • GA4 session-scoped metrics: engagement rate = engaged sessions / sessions; an engaged session lasts 10+ seconds, has a conversion, or views 2+ pages.

  • Attribution models in GA4 include data-driven, last-click, first-click, linear, position-based, and time-decay; changing the model changes reported conversions, not actual sales.

  • UTM parameters: utm_source, utm_medium, utm_campaign, utm_content, utm_term; case and spelling inconsistencies split reports into duplicate rows.

  • Sampling and thresholding: small segments or privacy thresholds can hide data; verify with raw exports before concluding a trend.

  • Statistical significance: a test needs a defined sample size and confidence level (commonly 95%) before declaring a winner.

  • Funnel analysis reports step-to-step drop-off; segment by acquisition channel to separate traffic-quality effects from page-design effects.

  • Data quality checks: filter internal traffic, exclude bot traffic, verify tracking tags fire once per page, and reconcile analytics against platform-reported conversions.