Digital Marketing, Search Engine Optimization (SEO) & SEM

Explanation

Digital marketing drives qualified traffic into e-commerce conversion funnels. Search engines rank pages based on relevance and authority. On-page optimization ensures crawlers understand product specifications using Schema.org Product structured data. Technical SEO satisfies Google Core Web Vitals to deliver fast, stable rendering. When organic ranking requires time, SEM provides immediate traffic through real-time keyword auctions where Ad Rank = Bid Amount * Quality Score.

Key points

• On-Page SEO: Semantic HTML headers (h1, h2), meta descriptions, keyword density, internal linking, image alt tags, structured data (Schema.org).
• Off-Page SEO: Inbound high-authority backlinks, domain authority (DA), and digital brand citations.
• Technical SEO: Page load speed (Core Web Vitals - LCP, INP, CLS), mobile responsiveness, XML sitemaps, and robots.txt.
• Search Engine Marketing (SEM) & Pay-Per-Click (PPC): Paid advertising (Google Ads) bidding on commercial keywords using Quality Score and Cost-Per-Click (CPC).
• Conversion Rate Optimization (CRO): A/B testing landing pages to maximize the percentage of visitors who complete purchases.

Example

Code examples

<!-- Schema.org JSON-LD Structured Data for E-Commerce Product -->
<script type="application/ld+json">
{
  "@context": "https://schema.org/",
  "@type": "Product",
  "name": "Sony WH-1000XM5 Wireless Headphones",
  "image": "https://example.com/photos/sony.jpg",
  "description": "Noise canceling wireless over-ear headphones",
  "brand": { "@type": "Brand", "name": "Sony" },
  "offers": {
    "@type": "Offer",
    "priceCurrency": "NPR",
    "price": "48000",
    "availability": "https://schema.org/InStock"
  }
}
</script>

Exam questions

• [8 Marks] Explain the differences between SEO (organic) and SEM (paid). Detail essential On-Page and Technical SEO factors for e-commerce sites.
• [6 Marks] What are Google Core Web Vitals (LCP, INP, CLS)? Why are they critical for e-commerce search rankings and user retention?