Mobile Marketing Mobile SEO and User Experience 3 — Questions and Answers
Question 1: A mobile page scores 45 on Google PageSpeed Insights. Which action would MOST directly improve the Largest Contentful Paint (LCP) score?
- Minifying CSS files
- Preloading the hero image with <link rel='preload'> (Correct answer)
- Adding schema markup
- Enabling lazy loading for all images
Correct answer: Preloading the hero image with <link rel='preload'>
Preloading the hero image ensures the browser prioritizes fetching the LCP element early, directly reducing the time until the largest visible element loads.
Question 2: What is 'progressive web app' (PWA) technology's primary SEO advantage for mobile users?
- PWAs automatically rank higher in Google mobile search
- PWAs provide app-like experiences including offline access and fast loading that reduce bounce rates (Correct answer)
- PWAs use AMP framework to speed up pages
- PWAs bypass Google's mobile-first indexing
Correct answer: PWAs provide app-like experiences including offline access and fast loading that reduce bounce rates
PWAs improve mobile UX through offline capability, fast loading via service workers, and installability, which can indirectly improve SEO by reducing bounce rates and improving engagement.
Question 3: When implementing Accelerated Mobile Pages (AMP), which tag must appear in the HTML element?
- data-amp='true'
- ⚡ or amp attribute in the <html> tag (Correct answer)
- <meta name='amp' content='true'>
- <link rel='amphtml'>
Correct answer: ⚡ or amp attribute in the <html> tag
AMP pages require either the ⚡ emoji or the word 'amp' as an attribute on the <html> tag (e.g., <html ⚡>) to be recognized as valid AMP.
Question 4: A site has a Cumulative Layout Shift (CLS) score of 0.35. What is the MOST common cause of high CLS on mobile?
- Too many HTTP requests
- Images and ads without defined width and height attributes causing layout shifts (Correct answer)
- JavaScript executing too slowly
- Large CSS files blocking rendering
Correct answer: Images and ads without defined width and height attributes causing layout shifts
Images and ads without explicit dimensions cause the browser to shift other content when they load, directly causing high CLS scores.
Question 5: What is the significance of the 'mobile-first indexing' approach Google fully implemented in 2021?
- Mobile sites rank higher than desktop sites automatically
- Google primarily uses the mobile version of content for indexing and ranking all pages (Correct answer)
- Google only shows results to mobile users
- Desktop-only sites are removed from search results
Correct answer: Google primarily uses the mobile version of content for indexing and ranking all pages
Mobile-first indexing means Googlebot predominantly uses the mobile version of a page's content for indexing, so missing content on mobile directly affects rankings.
Question 6: Which viewport meta tag setting correctly enables proper mobile rendering without allowing user zoom?
- <meta name='viewport' content='width=480'>
- <meta name='viewport' content='width=device-width, initial-scale=1'> (Correct answer)
- <meta name='viewport' content='width=device-width, user-scalable=no'>
- <meta name='viewport' content='maximum-scale=1, minimum-scale=1'>
Correct answer: <meta name='viewport' content='width=device-width, initial-scale=1'>
width=device-width sets the viewport to match the device's screen width, and initial-scale=1 ensures a 1:1 CSS pixel ratio on load without disabling zoom.
Question 7: How does page speed affect mobile SEO rankings according to Google's Speed Update (2018)?
- Page speed is a ranking factor only for paid search ads
- Page speed is a ranking factor for mobile searches, primarily affecting the slowest pages (Correct answer)
- Page speed affects all pages equally regardless of how slow they are
- Page speed is only a ranking factor for e-commerce sites
Correct answer: Page speed is a ranking factor for mobile searches, primarily affecting the slowest pages
Google's Speed Update made page speed a ranking factor for mobile searches, but it mainly impacts pages that deliver the slowest experience — very fast pages see minimal benefit.
Mobile Marketing Mobile SEO and User Experience 3
A mobile page scores 45 on Google PageSpeed Insights.
Which action would MOST directly improve the Largest Contentful Paint (LCP) score?