1. Framed web sites - These were a good idea once, or so several people tell us! There are, or at least were, a number of reasons for designing web sites in frames. But avoid them at all costs. You could have a global navigation in an include file, so that excuse has gone. If you want to include something let's say a third party form you can use an iframe on the relevant page. But there is no need to frame an entire web site - it makes it harder for search engines to crawl your web site and visitors cannot bookmark your pages.
2. Not testing on different browsers & screens - As the internet develops and moves on, so does people’s choice of browser. Yes, based on my own research maybe around half the world users a few form of Internet Explorer, but a third use Firefox. And if you just test on one version of Internet Explorer your website may not work on other versions, or fail on Firefox or other browsers. The same goes for developing in a widescreen screen and ignoring the majority of the population on smaller screens.
3. Plenty of flash, stacks of colour, lots of movement - It may be clever and take a load of time, but the finished result looks in excess of the top, amateurish and very off putting. As tempting as falling snowflakes and a mouse trailing shooting stars might seem, avoid them as they went out years ago.
4. Forget splash pages - Why do you think your visitors want to sit through an introductory page every time that they decide to visit your web site? Do they really want to sit through a 10 minute presentation of why you are the best in your field, with a ball bouncing about the screen to explode the reasons out of nowhere? Again, it is far too clever and time consuming and has a negative effect. Only get your customers straight to where they want to be - remember you have seconds to impress them, not minutes.
5. In excess of optimise a site through putting every keyword in bold, underlined and italic - Using every bit of emphasis that you might does not alert the search engines to the fact that these are the correct search terms for your web site, instead it alerts them to the fact that you are in excess of optimising. And by poor use of these techniques the page becomes unreadable. Instead, use these features to highlight key areas and titles to help readers find their way through your web site.
6. Forget to read and test your site - A reader will not like reading a page that is full of real clangers of spelling mistakes that stand out a mile or a page in which several of the links when clicked on produce error pages. Make certain that everything is correctly spelled and that all links are working.
7. Clashing colours and more than the top backgrounds - They might be eyecatching and grab attention, but backgrounds that compete with the main area of the website distract attention and clashing or too many colours are equally distracting.
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Written by Keith Lunt, who offers a Merseyside web design service. For more useful tips, call into the website design tips blog .