While web designers strive to produce work which is stable and future-proof, due to the nature of the ever changing web, it’s not always possible. The Internet is a global system of interconnected computer networks that use the standard Internet Protocol Suite (TCP/IP) to serve billions of users worldwide.
It is a network of networks that consists of millions of private, public, academic, business, and government networks of local to global scope that are linked by a broad array of electronic and optical networking technologies. The Internet carries a vast array of information resources and services, most notably the inter-linked hypertext documents of the World Wide Web (WWW) and the infrastructure to support electronic mail.
You can think of the Internet as more of a living organism than a static system (refer to Illustration below). No one controls the web or the directions of its growth and therefore it is subject to change in ways no one can predict. You must think of your presence online as any other presence, temporal and requiring regular upkeep. All business tools require maintenance, and you should view the web no differently
Therefore, as with most industries, web designers cannot offer a lifetime warranty. Standard warranties for websites can range anywhere from 4 weeks, to 1 year, but the web site is generally assessed on a case by case basis. An Ecommerce store is going to require far more technical support than a standard brochure website, and an iPhone application or custom web application are in a new league all together.