How Google discovers pages (crawling) in SEO Fundamentals - Practice Exercises

Challenge - 5 Problems

🧠 Conceptual

intermediate

How does Google initially find new web pages?

Google uses several methods to discover new web pages on the internet. Which of the following is the primary way Google finds new pages to crawl?

A By guessing URLs randomly

B By manually adding pages one by one

C By scanning only social media posts

D By following links from already known pages

💡 Hint

Think about how Google moves from one page to another automatically.

Google discovers new pages mainly by following links from pages it already knows. This process is called crawling. It does not guess URLs randomly or rely only on social media.

📋 Factual

intermediate

What role do sitemaps play in Google's crawling process?

Which statement best describes how sitemaps help Google discover pages?

A Sitemaps provide Google with a list of URLs to crawl directly

B Sitemaps block Google from crawling pages

C Sitemaps speed up page loading for users

D Sitemaps are used only for ranking pages

💡 Hint

Think about what a sitemap file contains and how Google uses it.

Sitemaps are files that list URLs on a website. They help Google find pages faster by telling it exactly which pages exist.

🔍 Analysis

advanced

Why might Google not crawl some pages even if they are linked?

Google may choose not to crawl certain pages even if they are linked from other pages. Which of the following is NOT a reason for this?

A The page is blocked by robots.txt

B The page has many internal links pointing to it

C The page has a very slow loading time

D The page has a 'noindex' meta tag

💡 Hint

Consider what might prevent Google from crawling a page.

Google may skip crawling pages blocked by robots.txt, marked 'noindex', or very slow to load. Having many internal links usually encourages crawling, not prevents it.

❓ Comparison

advanced

Compare crawling frequency for different types of pages

Which type of page is Google likely to crawl more frequently?

A A page blocked by robots.txt

B An old page with no changes for years

C A homepage that updates daily

D A page with a 'noindex' tag

💡 Hint

Think about how often Google revisits pages that change often versus those that don't.

Google crawls pages that update frequently more often to keep its index fresh. Pages blocked or marked 'noindex' are not crawled or indexed.

❓ Reasoning

expert

How does Google prioritize which pages to crawl first?

Google has limited resources to crawl billions of pages. Which factor below best explains how Google decides which pages to crawl first?

A Pages with higher PageRank or importance get crawled earlier

B Pages with the longest URLs are crawled first

C Pages with fewer images are crawled first

D Pages that use more keywords in the title are crawled first

💡 Hint

Consider what makes a page important or valuable to Google.

Google uses signals like PageRank to estimate page importance and prioritizes crawling important pages first to keep its index relevant.

Practice

1. What is the main method Google uses to discover new web pages?

easy

A. Guessing URLs based on popular keywords

B. Manually adding pages submitted by users

C. Waiting for website owners to email URLs

D. Using automated crawlers that follow links from known pages

Solution

1. Step 1: Understand Google's discovery process

   Google uses automated programs called crawlers or spiders to find new pages by following links from pages it already knows.

2. Step 2: Compare options

   Only Using automated crawlers that follow links from known pages describes this automated crawling method. Other options describe manual or guessing methods which Google does not rely on.

3. Final Answer:

   Using automated crawlers that follow links from known pages -> Option D

4. Quick Check:

   Google uses crawlers = A [OK]

Hint: Remember: Google bots crawl links automatically [OK]

Common Mistakes:

• Thinking Google manually adds pages
• Believing Google guesses URLs randomly
• Assuming email submissions are main method

2. Which of the following is the correct term for Google's automated program that finds new pages?

easy

A. Crawler

B. Indexer

C. Ranker

D. Optimizer

Solution

1. Step 1: Identify Google's discovery tool name

   The program Google uses to find new pages by following links is called a crawler or spider.

2. Step 2: Eliminate other terms

   Indexer organizes pages after crawling, Ranker orders results, Optimizer improves site SEO. Only Crawler finds pages.

3. Final Answer:

   Crawler -> Option A

4. Quick Check:

   Google's discovery tool = Crawler [OK]

Hint: Crawler = program that finds pages [OK]

Common Mistakes:

• Confusing crawler with indexer
• Thinking ranker finds pages
• Mixing optimizer with crawler

3. If a website has no links from other sites and no sitemap, what will likely happen when Google tries to discover its pages?

medium

A. Google will find the pages quickly by guessing URLs

B. Google will automatically add the pages to its index

C. Google will not find the pages easily because there are no links or sitemap

D. Google will send a manual request to the website owner

Solution

1. Step 1: Understand how Google discovers pages

   Google relies on links and sitemaps to find new pages. Without these, discovery is difficult.

2. Step 2: Analyze options

   Google will not find the pages easily because there are no links or sitemap correctly states Google won't find pages easily without links or sitemap. Other options describe guessing, automatic adding, or manual requests which do not happen.

3. Final Answer:

   Google will not find the pages easily because there are no links or sitemap -> Option C

4. Quick Check:

   No links or sitemap = hard to find pages [OK]

Hint: No links or sitemap means hard for Google to find pages [OK]

Common Mistakes:

• Assuming Google guesses URLs
• Thinking Google adds pages automatically
• Believing Google contacts owners manually

4. A website owner notices Google is not discovering some new pages. Which of these is a likely cause?

medium

A. The new pages are not linked from any other page on the site

B. The website has a sitemap listing all pages

C. The pages have clear, descriptive titles

D. The website uses HTTPS protocol

Solution

1. Step 1: Identify why Google misses pages

   Google finds pages by following links. If new pages are not linked anywhere, crawlers cannot find them.

2. Step 2: Evaluate other options

   Sitemap helps discovery (B), titles help ranking (C), HTTPS helps security (A). Only lack of links (D) blocks discovery.

3. Final Answer:

   The new pages are not linked from any other page on the site -> Option A

4. Quick Check:

   No links = no discovery [OK]

Hint: Pages must be linked or in sitemap to be found [OK]

Common Mistakes:

• Thinking HTTPS affects discovery
• Confusing titles with discovery
• Ignoring importance of internal links

5. You want Google to discover a new section of your website quickly. Which combination of actions will help the most?

hard

A. Change the website's color scheme and add meta descriptions

B. Add internal links to the new pages and submit an updated sitemap

C. Remove old pages and increase page load speed

D. Use HTTPS and add social media share buttons

Solution

1. Step 1: Identify key factors for fast discovery

   Google discovers pages by crawling links and reading sitemaps. Adding internal links and updating sitemap helps crawlers find new pages quickly.

2. Step 2: Analyze other options

   Changing colors or meta descriptions (B) does not affect discovery speed. Removing old pages or speed (C) helps ranking but not discovery. HTTPS and social buttons (D) improve security and sharing but not crawling.

3. Final Answer:

   Add internal links to the new pages and submit an updated sitemap -> Option B

4. Quick Check:

   Links + sitemap = faster discovery [OK]

Hint: Links plus sitemap speed up Google discovery [OK]

Common Mistakes:

• Focusing on design changes instead of links
• Ignoring sitemap importance
• Confusing ranking factors with discovery