How does a search engine find web pages? For a full account on spiders read "Robots, Spiders and Crawlers Oh My!"

(tip ->>) Your web pages must be visible to search engine spiders in order to be indexed. Use the tools below to see what a spider sees. This will give you an idea of what a search engine sees and can show you potential problems with indexing.

Webmaster Toolkit
Shows you how the page would look to search engine spiders.

Searh Engine Optimization Tool
This tool displays the text & links that the Search Engine would see when it crawls a page.

1-Hit.com
The search engine spider simulator checks if your site can be spidered by search engines. It will give you an idea how search engine see your page, and give you additional comments and suggestions in case it found a problem related to the spidering of your site.

Poodle Predictor
Enter your URL to see what your site will look like in search-engine results. See how search-engine friendly your site is, can the spider crawl it easily? Will it get good rankings?

Webmaster World

Summit Tools
This search engine spider simulator provides you with a report on aspects of the page that are used to determine how highly in a search engine the page is ranked, and also gives some general usability feedback. The spider sim is completely free to use.