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Web Crawlers and Spiders
Provide high quality content on your pages, especially your homepage. This is the single most
important thing to do. If your pages contain useful information, their content will attract visitors
and entice other webmasters to link to your site. In creating a information rich site, write pages
that clear and accurate. Pay attention to the keywords that users would type to find your pages,
and always include them on your site keywords.
Sites that link to you, help crawlers find your site and can give your site visibility within
search results. Google combines PageRank™, a measure of a page's importance, sophisticated math,
and text matching to display pages that are important and relevant to a search. Google counts the
number of votes a page receives to determine its PageRank™, interpreting a link from one site to
another as a vote for for that paticular website.
Create a useful, information-rich site, and write pages that clearly and accurately describing
your content. Use text instead of images to display
important names, content, or links. The Google crawler does not recognize text contained within
images. Make sure title and alt tags are descriptive and accurate, check for broken
links, and validated pages. Be aware that not every search
engine spider crawls dynamic pages as well as static pages.
Useful Content
Make pages for users, not for search engines. Don't deceive your users or present different
content to search engines than you display to users, which is commonly referred to as "cloaking."
Avoid tricks intended to improve search engine rankings. A good rule of thumb is if you feel
comfortable explaining what you've done to a website that competes with you. Another useful
test is to ask, "Does my website offer my products and help my visitors?"
Websites should have a logical link structure. Every page should be reachable from at least one text
link. If features such as Javascript, cookies, session IDs, frames, DHTML, or Macromedia flash are
used on your website, then some spiders have trouble crawling it. Consider creating static copies
of your dynamic pages. If you suspect dynamic pages with URL question marks are causing problems with
being indexed, create static copies of your pages.
Things to Avoid
Don't fill your page with lists of keywords, attempt to "cloak" pages, or put up "crawler only"
pages. If your site contains pages, links, or text that you do not intend visitors to see, Google
considers them deceptive and may ignore your site. Don't feel obligated to purchase a search
optimization service. Some companies claim to "guarantee" high ranking for your site in Google's
search results. While legitimate consulting firms can improve your sites flow and content, others
employ deceptive tactics in an attempt to fool search engines.
Google's crawler doesn't
recognize text contained in graphics. Use "alt" tags if the main content and keywords on
your page can't be formatted in regular HTML. Websites with text only or printer friendly
versions of pages that contain the same content as the corresponding graphic rich pages, be
ensure your preferred page is included in a search result, and block duplicates from spiders
using a robots.txt file. Custom robots.txt files keep the nasty bots out of your site.
Avoid the use of hidden texts or hidden links on your web pages. Aviod creating multiple pages,
subdomains, or domains with duplicate content. Avoid "doorway" pages created just for search engines,
or affiliate programs with little or no original content. These guidelines cover forms of deceptive
that Google may respond to negatively. Webmasters who uphold basic principles will
provide a better user experience, and then subsequently enjoy better indexing.
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