Title: Search Engine Optimization
1Search Engine Optimization
2Google this
- In real estate, the key is location, location,
location - In the web-space, the key is content, content,
content
3What is a Search Engine?
Software that lets users search the Internet
using keywords.
4What is Search?
- Query Box
- Where you type your keywords
- 4-6 keywords now the norm instead of 1-2
- Search Results are listed on the left-hand side
of the page - Paid Ad Results are listed on the right-hand side
of the page
5Major Search Engines
- Google feeds AOL, Netscape, Earthlink others
- Yahoo owns Overture, AltaVista, AlltheWeb, FAST
others - Google, Yahoo MSN results account for 80-90 of
all search traffic (rough estimate)
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6Search Engine Relationship Chart
http//www.bruceclay.com/searchenginerelationshipc
hart.htm
7Anatomy of a Search Result
Search box
Sponsored Listingsaka PPC
Organic Resultsaka SERPs
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8Google Search Results
9Yahoo Search Results
10MSN Search Results
11Who are the players
- Market Share according to www.Businessweek.com
- Google reached 52 in June of US
- Yahoo reached 25
- MSN reached 10
- Everyone else 13
- Ask Jeeves
- Dogpile
- AOL et al
12Share of Searches July 2006
http//searchenginewatch.com/showPage.html?page21
56451
13A Search Engines Goals Objectives
- Accumulate large index (database) of web
documents to search - Provide highly-relevant results to users (better
than competitors) - Generate revenue via paid advertising and related
business ventures that typically leverage large
amount of traffic
14How Do Search Engines Work?
- Spider crawls the web to find new documents
(web pages, other documents) typically by
following hyperlinks from websites already in the
database - Search engine indexes the content (text, code) in
these documents by adding it to their huge
databases and periodically updates this content - Search engine searches its own database when user
enters in a search to find related documents (not
searching web pages in real-time) - Search engine ranks resulting documents using an
algorithm (mathematical formula) that assigns
various weights to various ranking factors
15What is a Algorithm?
- A set of rules that a search engine uses to rank
the listings contained within its index, in
response to a search. - Uses an algorithm to identify preferred links
- Algorithms may involve
- Usage of keywords
- Popularity (number of links pointing inward)
- Other criteriaoften proprietary
16So What is the Algorithm?
- Top Secret! Only select employees of the actual
search engines know for certain - Reverse engineering, research and experiments
gives SEOs (search engine optimization
professionals) a pretty good idea of major
factors and approximate weight assignments
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17So What is the Algorithm?
- Constantly changing, tweaking, updating is done
to the algorithm. - Websites and documents being searched are also
constantly changing - Varies by Search Engine some give more weight
to on-page factors, some to link popularity
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18What a Search Engine Sees
- View gt Source (HTML code)
- http//www.delorie.com/web/lynxview.html (HTML
text, no images and little formatting) - http//cgi.w3.org/cgi-bin/html2txt
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19What is Search Engine Optimization?
- The act of designing (or re-designing) your site
to be more search engine friendly.
20Why Search Engine Optimization?
- 85 of all traffic on the internet is referred
from a search engine - 90 of all users dont look past the first 30
results (most only view top 10) - Many websites arent even indexed, most are
poorly optimized and get very little traffic from
the search engines
21Basic Search Engine Optimization
- Create usable, readable pages for people because
search engine algorithms calculate relevance from
a human perspective. - Ensure navigation allows crawlers to reach all
parts of your site. - Include title, description, and keywords meta
tags in the HTML header. - Use keywords in meaningful headings.
- Use keywords at the beginning of the page in
text. - Use keywords in the URL or filename, and dont
change either unnecessarily.
22Basic Search Engine Optimization
- Create alt tags for graphics containing keywords.
- Dont try to spam a search engine by overuse or
hidden use of keywords. - Validate all HTML to ensure it can be seen by
the search engine. - Use robots.txt and robots meta tags to keep
search engines from indexing what they shouldnt. - Avoid using frames.
- Avoid putting content and links within script
code.
23Ranking Factors
- On-Page Factors (Code Content)
- Title tags lttitlegt
- Header tags lth1gt
- ALT image tags
- Content, Content, Content (Body text) ltbodygt
- Hyperlink text
- Keyword frequency density
- Off-Page Factors
- Link Popularity (votes for your site) adds
credibility - Anchor text
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24Meta Tags
- Self-describing text at the beginning of a web
page that is not visible to the user but can be
read by the search engine - Title
- Key-words
- Description
- Appear not to be significant for most search
engines today
25Search Engine Optimization Text
- Credible repetition of key words
- Frequently greater credit for
- Bolded words
- Words early in the document
- Identification of desirable key words
- Analysis of competing sites
- Customer interviews
- Misspellings
26Anti-Spam Detection Algorithms
- Excessive repetition of key words in meta tags
- Use of redirection
- Use of hidden text
- Excessive use of keywords or bolding may be
detected
27Search Engine Optimization Reciprocal Linking
- Linking from highly rated web sites greatly
increases the ranking of a site - Linking from low rated sites does not appear to
help much - The weight of a link may be determined by the
number of links at that pageone link among many
is worth less - Linking to spamming sites may be penalized
28Visibility (link popularity)
- Some search engines rank your site higher if many
other sites link to yours - Your goal is to get as many sites as possible to
link to you - Make a list of every Web site thats in your
space but not a direct competitor - Find their email address and write a brief,
friendly letter suggesting a link exchange - Get your partners, vendors, friends and relatives
to link to your site - Submit those pages that link to you to Google
29Search Engine Optimization Other
- Domain names
- If the domain name features the keyword, more
weight is given - Google considers the underscore a spacee.g.,
Marketing_Tips.com . - Listing in the Open Directory Project
(http//www.DMOZ.org) .
30Use Robots.txt Files Wisely
- Create and maintain a robots.txt
- Robots.txt Tutorial, http//www.searchengineworld.
com/robots/robots_tutorial.htm
31Let Spiders In
- Have HTML links on your home page for each major
page within your site - Most SEs, like Google, cannot follow image map
links - Search engines can follow lta hrefgt JavaScript
mouseover links, but not all - Have a site map that contains links to all of
your pages link with lta hrefgt link from home
page - Search engines follow links to more resources -
so make sure you do not have broken links
32Using your keywordshtml title
- The html title of the page is what you see at the
top of your browser when you are on that page. - Its what displays as the link for your listing
on a search engine. - Keep it under 75 characters.
- Make each title relevant to the page its on.
- Spend the most time writing the title for your
home page. - Write a title for the starting page of each major
section of your site. - For all other pages, either use the same title as
the major section, or use breadcrumbs.
33Using your keywordsmeta description
- The meta description tag describes in a little
more detail whats on your page - Its what displays below the title in your search
engine listing - Keep it under 150 characters to be sure it
doesnt get cut off - Make each description relevant to the page its
on - Try to entice potential visitors with clever
copy, so theyll click
34Using your keywordsmeta description
- Its not really about ranking, its about
describing your page to potential visitors - Not all search engines use it, but if they do,
its what shows up on the search results page
below the title of the page
35Using your keywordsmeta keywords
- The meta keywords tag can be the same for all the
pages on your site - Not all search engines use this tag when ranking
sites but it cant hurt to include it - Use a list of words and phrases with no commas in
between (search engine spiders are programmed to
read only a certain number of characters in the
keyword tag if they read it at all commas just
take up space)
36Using your keywordsALT tags
- every image on your Web site should have a
carefully written ALT tag - the ALT text is what visitors see if they move
their mouse over an image
37Using your keywordsfile names
38Using your keywordson your home page!
- Work your keywords into the copy of your home
page (and on other pages, if you can) as many
times as you can without making it sound
ridiculous. - This may seem obvious but it aint necessarily
so. - Focusing on your keywords when writing the copy
for your pages also helps reduce jargon. - an example
39Create Quality Page Content
- Relevant, authoritative content
- Current content - will be visited more often by
crawlers - Create keyword rich titles, descriptions, ltH1gt
- Best to have at least 200 words of visible text
- Mark content through use of metatags, RDF, and
XML to allow search tools to understand the
context, meaning, and relationship of words - Create content people want (and that other sites
like yours will link to)
40What NOT to do
- Dont load your meta tags with irrelevant
keywords just because they get searched for a lot
(like sex). - Dont repeat your keywords several times in a
row. - Dont hide text on your pages by making it the
same colour as the background. - Dont use a string of keywords for the title of
your page. - Dont submit exact copies of pages with different
file names. - Dont use re-directs or other technology that
will confuse the search engines spider
41Get Listed in the Directories
- Get Listed in DMOZ, the Open DirectoryHow to add
a site to the Open Directory http//dmoz.org/add.h
tml - Get Listed in the Yahoo Directoryhttp//add.yahoo
.com/fast/add?17051064 How To Suggest Your Site
on Yahoo http//docs.yahoo.com/info/suggest/
42Submitting your site to Google(this is the easy
part)
- Go to http//www.google.com/addurl.html
- Open a second browser window and go to your home
page - Highlight the URL of your home page, press
CTRL/C, then go to Googles submission page and
paste in your URL. - If your site is small enough, submit all your
pages this way. If your site is large, submit the
first pages of the main sections of your site
the pages with titles and descriptions.
43Wait(this is also the hard part)
- it can take from two weeks to four months for
your site to be included in the database - it can take weeks after that before you see your
site appear in the search results - every time the database is re-indexed, your
ranking will change - re-submit every month and monitor your results
44Design Issues
- Search engines prefer big, dumb ugly pages
- Design issues that can impact ranking (or just
indexing) especially include - Splash pages, frames dynamic delivery
- Consider these issues when building a site,
though dont change everything just for search
engines.
45Theres No Magic Formula
- Do not agonise over SEO issues
- Design it right users and search engines
- Engines always one step ahead of the tricks
46Summary
- Dont design for search engines
- Design for your audience
- Know your message / know your keywords
- Change your content often
- Quality is most important
47Questions?