Prepare a Spider Friendly Website

The spider is the software that crawls down your website to collect information on your pages. It will appear once you have submitted your website and will visit it regularly.

The spider does not view your page like a browser. For instance, it disregards the JavaScript code. And since its signature is different from that of a browser, the lines of JavaScript you could place at the beginning of your pages to reject too outdated versions of browsers could also reject the spiders and your website would consequently disappear from search engine listings.