How Search Engines Work
Upcoming SlideShare
Loading in...5
×

Like this? Share it with your network

Share

How Search Engines Work

  • 1,106 views
Uploaded on

Basics about crawling, ranking and SEO

Basics about crawling, ranking and SEO

More in: Technology , Design
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
No Downloads

Views

Total Views
1,106
On Slideshare
1,106
From Embeds
0
Number of Embeds
0

Actions

Shares
Downloads
48
Comments
0
Likes
3

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. ORGANIC SEARCH
  • 2.
    • CRAWL
    INDEX RANK
  • 3.
    • CRAWLING
    KnownWeb pages Index Servers Crawler Machines Googlebot Doc Servers
  • 4.
    • DEVELOPING THE LIST OF KNOWN WEB PAGES
    KnownWeb pages Prior Crawls /addurl
  • 5.
    • PEREMECH
  • 6.
    • CRAWLING FOR PEREMECH
  • 7.
    • CRAWLERS IDENTIFY THEMSELVES
  • 8.
    • ROBOTS.TXT – EXCLUDES SITES FROM CRAWLING
    whitehouse.gov/robots.txt
  • 9.
    • CRAWLERS SHOULD NOT HOG RESOURCES
  • 10.
    • CRAWLING PROBLEM: THE WEB IS VAST
  • 11.
    • CRAWLING PROBLEM: THE HIDDEN WEB
  • 12.
    • INDEXING
  • 13.
    • RANKING
    Closely guarded, proprietary algorithm
  • 14.
    • RANKING
    Organic Search Results Keyword Phrase
  • 15.
    • RANKING – THINGS THAT MATTER
    Can you find the word Lobster ?
  • 16.
    • WHY IS RED LOBSTER RANKED HIGHER?
    Can you find the word Lobster ?
  • 17.
    • HOW CAN I IMPROVE MY RANK?
  • 18.
    • BASIC SEO CONCEPTS –TEXT
    KEYWORD PROXIMITY We sell live Maine lobster Home of Maine ’s best lobster All of our lobsters come from Maine
  • 19.
    • BASIC SEO CONCEPTS –TEXT
    KEYWORD DENSITY What percentage of the words on this page are lobster .
  • 20.
    • BASIC SEO CONCEPTS –TEXT
    KEYWORD FREQUENCY The keyword lobster is visible 32 times and occurs 182 times on the page
  • 21.
    • BASIC SEO CONCEPTS –TEXT
    KEYWORD PROMINENCE Lobster Lobster Lobster Lobster Lobster Lobster
  • 22.
    • BASIC SEO CONCEPTS – LINKING
    LINK EXCHANGE AND PAID PLACEMENT
  • 23.
    • BASIC SEO CONCEPTS – LINKING
    An article written at thefreelibrary.com
  • 24.
    • BASIC SEO CONCEPTS – LINKING
    PAID PLACEMENT
  • 25.
    • BASIC SEO CONCEPTS – LINKING
    LINK EXCHANGE - RELEVANT
  • 26.
    • BASIC SEO CONCEPTS – LINKING
    LINK EXCHANGE – NON RELEVANT
  • 27.
    • BASIC SEO CONCEPTS – LINKING
    LINK SPAM
  • 28.
    • BASIC SEO CONCEPTS – LINKING
    COMMENT/ FORUM SPAM
  • 29.
    • BASIC SEO CONCEPTS – LINKING
    COMMENT/ FORUM SPAM
  • 30.
    • LINK EXCHANGE IS
    • CONTROVERSIAL
  • 31.
    • USER RELEVANCE
    LOCATION USER ID 130.111.115.24
  • 32.
    • USER EXPERTISE VARIES
  • 33.
    • PHOTO ATTRIBUTIONS
    Slide 10: 'OINK! OINK!’ www.flickr.com/photos/49968232@N00/51679641 Slide 11: ‘The Vast Web’ wikicommons.com Slide 13: 'Royal Guards’ www.flickr.com/photos/23697065@N05/2356109302 Slide 17: 'Yoda (IMG_3308)‘ www.flickr.com/photos/73531322@N00/194828922 Slide 30: ‘Vera Cruz’ BAM/Photofest