How Google discovers pages (crawling) in SEO Fundamentals - Quick Revision & Summary

Recall & Review

beginner

What is web crawling in the context of Google?

Web crawling is the process where Google uses automated programs called crawlers or spiders to visit web pages, read their content, and follow links to discover new pages on the internet.

beginner

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

Links act like pathways that Google’s crawler follows from one page to another, helping it find and index new pages across the web.

intermediate

What is a sitemap and how does it help Google discover pages?

A sitemap is a file that lists important pages on a website. It helps Google find pages more easily, especially those that might not be linked well within the site.

intermediate

Why might some pages not be discovered by Google’s crawler?

Pages might not be discovered if they are not linked from other pages, blocked by robots.txt, or if they require login or special access.

intermediate

How often does Google crawl web pages?

Google crawls pages at different frequencies depending on the page’s importance and how often it changes. Popular or frequently updated pages are crawled more often.

What is the main tool Google uses to find new web pages?

A Email requests

B Manual search

C Social media posts

D Web crawler (spider)

Google uses automated programs called web crawlers or spiders to discover new pages by following links.

Which file helps Google understand which pages to crawl on a website?

A favicon.ico

B index.html

C robots.txt

D style.css

The robots.txt file tells Google which pages or sections of a website should not be crawled.

How does a sitemap assist Google’s crawling process?

A By listing important pages to crawl

B By blocking unwanted pages

C By speeding up page loading

D By improving page design

A sitemap lists important pages, helping Google find and crawl them more easily.

Why might Google not find a page on your website?

A Page has too many images

B Page is not linked anywhere

C Page uses bright colors

D Page is very popular

If a page is not linked from other pages, Google’s crawler may not discover it.

Which factor influences how often Google crawls a page?

A How often the page content changes

B The page’s background color

C The number of ads on the page

D The page’s font size

Pages that change frequently or are important are crawled more often by Google.

Explain how Google discovers new web pages through crawling.

Think about how Google moves from one page to another and what helps or blocks it.

Describe why some pages might not be found by Google’s crawler and how to help Google find them.

Consider what stops Google from seeing a page and what you can do to fix it.

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