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Glossary
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Error Messages and
Missing Pages
Sometimes when you attempt to reach a Web
page, either by typing its URL or by clicking on a link, your efforts
will be in vain. Instead, you will see the dreaded "HTTP 404 -
File not found" message or something similar to indicate that the
page is not available.
If that happens don't give up, thinking that
the page has disappeared. That could be the case; webmasters
sometimes remove pages from servers. In other cases, however, you may
have made a typing error or the Web site may have been reorganized so
that the material might still be available at a different location. Try
one of the following suggestions.
1) Check your typing. If you typed the
URL in your browser's address box, look carefully at what you typed.
Did you omit, repeat or transpose some characters? The Internet is
unforgiving where typing addresses is concerned. One error can doom
your attempt to reach a site.
Especially check lookalike characters. Is
that round character a zero or a letter O? Is that straight vertical
mark the letter L or the numeral 1?
Also check the end of the URL. Is it .htm or
.html? Some sites use one extension for files, and some use the other.
Check the top-level domain to be sure you have the correct one. Not
all top-level domains end in .com. Should it be .org, .net or
something else?
2) Back off. In this case, that
expression does not mean to shy away from something. Rather, it means
to work your way up, level by level, from the URL with which you
started. Suppose the URL is
http://www.someplace.com/records/years/2002/months/sept/files.htm
Remember from the Getting the Most out of
Your Browser page that forward slashes in a URL indicate
directories on a Web server. Try moving up one level at a time. In
your browser's address box highlight files.htm and hit the
delete key on your keyboard (or you can click to the right of the URL
and backspace until files.htm is deleted). Then hit the enter
key. That will move you up one level on the server, to
http://www.someplace.com/records/years/2002/months/sept/
If a sept directory exists at that
level on the server, you will see either its contents or a default
page. In either case you have made progress, and you can look for the
information you need. If you still receive an error message, delete
the next part of the URL so that you are left with
http://www.someplace.com/records/years/2002/months/
Keep working your way up until you find
something useful or hit a dead end at the top level of the site.
Sometimes successful research requires persistence.
Note: If the error message came when
you used a link on a Web site, you might want to send e-mail to that
site's webmaster to let him or her know. Keeping Web sites up to date
is a challenging job, and most webmasters appreciate being notified
when something on their site needs to be corrected.
3) Search. Maybe the site you want is
still available, but it has moved to a different server. Use a search
engine to seek the page's title or something unique in the site's
content. You might find it.
4) Try again. If nothing in steps 1-3
helped, wait a while and try going to the page again. It's possible
that a power failure, computer problem or breakdown in the site's
Internet connection caused a temporary glitch. The site may be working
fine the next time you try it.
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