1) Annoying Splash Pages or splash pages in general

if you were surfing the web looking for a certain type of product, and you stumble on 2 different sites, site A and site B for example. site A shows you the product while site B shows you a “Now Loading” sign followed by some animation before you can even see the product. Who is more likely to turn potential visitor into a customer?
2) Confusing Navigation Structure
Nothing is more frustrating than having to spend some time trying to figure out how to use a website.
Take the following images for example:


What do you want to do today?
there are no contrasting elements, everything looks the same, except every button of this page links to completely different sections.
What do the graphical icons on the right side do? I have no idea at first glance. This is what I call poor navigation structure. Nothing is discernable, and you have to play guessing games. Stuff like this is destined to failure in terms of user-friendliness.
3) Unreadable text

Unreadable text is the worst. If visitors cannot read your text, then your message is lost completely.
4) Excessive use of flash for content

Websites created exclusively in flash are incredibly cumbersome to update site content, as well as impossible to bookmark. If people cannot bookmark your pages, there’s nothing to pull from the site because of poor foresight. There’s really no way for users to go straight to the content they want to see and no way to send links to their friends, resulting in lost traffic and lost potential backlink. Which is something that will be talked about later when we list a few ways to get users to return to your site.
5) Long load times
Annoying splash pages can be slotted within this same category. If you’re running a personal website like a portfolio or resume of work, you are free to make it take however long you want to make it load because it’s your own personal site and you have nothing to lose, no visitors to convert to customers. On the other hand if you’re trying to sell a product, service and convert those visitors into customers, then it’s the exact opposite, you want to compel them to stay, you need to get grab their attention and communicate your goal to them instantly.
In Conclusion,
If you want those visitor to customer conversions, you need to avoid splash pages like the plague, present the user with the worlds most easy to understand site navigation — keep it simple!, make the text easy to read, avoid using excessive flash, keep the html text to flash animation ratio to at least 2:1 and optimize your site to load fast!
I hope that you enjoyed this article, and stick around for the next one, where we will be talking about how to keep your users coming back.