what important information from W3C will you consider before producing a website?

W3C-World Wide Web consortium

first thing is that you must not have more than 3 flashes per second as it could cause Seizures which is bad.

some simple guidelines to keep in mind.
A; no internet access
B; compatibility
C; language
D; resources
E; interests
F; funding
G; countries laws
H; disabilities

you must make sure that the end users can use your site even with theses problems you must also be able to use the facilities aviable to the maximum potential for maximum affectiveness.

Web Content Accessibility Guidelines are to alow people to improve access for everyone not just the average person, people who suffer from a long term disability often use the computer so making the computer/ internet more compatible for them is a key objective. Guidelines are to keep people on the right path to learn from the mistakes of those before them and to create what the user needs.