In 2006, a Canadian research team conducted a study to try and ascertain how short a time it took for human visitors to sum up a webpage. And the results were startling!
1/20th of a second can be a killer
The team began by showing 50 millisecond glimpses (that's 1/20th second) of webpages to the participants, then had them rate the webpages in terms of their aesthetic appeal. Then they let them see the same pages for a much longer periods and had them rate the pages again. Surprisingly, the results were very close. The conclusion is shocking to us as designers (and should also impact anyone with a website as well)...
According to the results in the study, you have 1/20th second before a visitor decides your sites flies or dies in their thinking!
This makes choosing a designer with good design and layout skills so critical. Forget fancy "gadgets" on your site, even quality content doesn't matter at this point. If you site turns off a visitor, then they may not even see your content - they're hitting the back button!
Of course, they will see the page they navigated to, the hand can't move that fast, but
This is what appears in the browser tab of the website, or pops up when you mouse over the tab. This is the most important tag in your on page SEO arsenal. Getting this one wrong can be painful, yet, as I said, I see it wrong so often. This tag should be 60-70 characters long - characters after that will be ignored. I aim for 65 generally. You should also get your most important keywords or phrases at the beginning of the tag - the closer to the end, the less weight the search engines (SE's) put on them.