Explain in simple words how a search engine like Google finds and ranks pages.
What the interviewer wants to hear
- Crawling: bots discover pages through links and sitemaps
- Rendering and indexing: content is processed and stored
- Ranking: many signals decide order for each query
- Relevance, quality and user intent matter most
Model answer
Search engines work in three main steps. First is crawling: bots like Googlebot discover pages by following links and reading XML sitemaps. Second is indexing: Google renders the page, understands the text, images and structure, and stores it in a huge index. A page can be crawled but still not indexed if it is low quality, a duplicate, or marked noindex. Third is ranking: when someone searches, Google picks the most relevant and helpful results from the index using many signals, such as how well the content matches search intent, content quality and trust, links from other sites, page experience and location. Today Google may also show AI Overviews that summarise answers and cite sources. As an SEO, my job is to make sure each step works well for the pages that matter.
Can you answer it under time pressure?
Take a timed easy round and get scored on every answer.
More easy SEO Specialist questions
- What is search intent, and why does it matter for SEO?
- What are the key on-page SEO elements you check on a page?
- What are backlinks, and what makes a good backlink?
- How do you use Google Search Console in your daily SEO work?
- What are Core Web Vitals, and why do they matter?
- What is the difference between robots.txt and a noindex tag?
- What is local SEO, and how would you improve a local business's visibility?
- What is structured data, and how do you use it for SEO?
- How do you write good title tags?