Q:- Issues related to “not found”, “404 pages”, “external server links”, “external images”?
A:- This is very necessary process that must be verified by QA Team. Find broken pages, external server links and images is not simple task and short time process but it is needed to be done. If we get many links in website then this process will be time consuming so just because of it many techniques/tools are available right now but we have to analyses what would be better according to need.
Not found pages problem is very serious problem that no one want to get in developed site because it will take users away from site due to disturbing problem and unexpected output behavior. Some pages may be linked with external server also due to files are not uploaded properly on new server/changed server.
There are many tools to find the not working pages, external server links and not found images also with proper properties then issues can be fixed easily. Manually problem can be found but it will take enough time and no proper assurance guarantee.
A reference to know more about problems, like a website is developed and uploaded on live server and during testing process a tester/team found some images are not found, some pages are not working and some pages are still coming from previous server.