Advanced Link Checks
View the source of each and every page: is there JavaScript and CSS on the page? Remember that spiders may not index pages that have more than 10k or so of JavaScript or CSS embedded in them. Spiders don’t enjoy getting tangled up in JavaScript. So as a general rule you should avoid putting out prompts and alerts using JavaScript every time that a page loads. Because of this rule, it is also wise to avoid link partners who do so on the pages that they link to you from. If anything looks fishy, it probably is.
CSS won’t give you many problems. If you are going to use CSS, it is best to link to it from another source. Create a separate CSS page and use the <link> tag to work it into the head of your HTML. This method will keep your file size down considerably, and since you will probably be using the same CSS on several pages, decrease your bandwidth usage. Normally a large quantity of CSS within the document isn’t indicative of any suspicious behavior on the part of the linker. If you feel that you are, indeed, suffering from the fact that the site uses such an excessive proportion of CSS on the page itself, suggest to the webmaster that he/she may want to create an external CSS document and link to it in his/her header.
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