Are
you sure that your website is
free of hidden text? There are
many ways to create hidden text
unintentionally. By checking your
web pages, you make sure that
you won't be penalized for something
you did not intend to do.
Why is hidden text
a problem?
Google doesn't like hidden
text and hidden links at all.
Here's the official text from
Google's guidelines:
Hiding text or links
in your content can cause
your site to be perceived
as untrustworthy since it
presents information to
search engines differently
than to visitors. [...]
Hidden links are links
that are intended to be
crawled by Googlebot, but
are unreadable to humans.
[...]
If your site is perceived
to contain hidden text and
links that are deceptive
in intent, your site may
be removed from the Google
index, and will not appear
in search results pages.
How can you hide text
on your web pages?
There are many methods that
allow you to hide text on
your web pages:
- using white text on a
white background
- including text behind
an image
- using CSS to hide text
- setting the font size
to 0 or a negative value
If you wittingly use some
of these methods on your web
pages, you should make sure
that you remove them as soon
as possible.
Are you sure that you
don't use hidden text unintentionally?
There are a few legitimate
reasons to hide text on a
web page. For example, you
could use CSS to replace a
text link with a more pretty
graphical button.
Many content management systems
(CMS) use the CSS display:none
technique to create drop-down
menus or other expandable
web page elements. Although
these elements are not designed
to mislead web surfers, search
engines might interpret the
hidden texts as a spamming
attempt.
Another way to create hidden
text is to provide enhancements
for visually impaired people.
If a lot of text on your website
can only be seen by screen
reader software and not by
regular web surfers then some
search engines might misinterpret
this as spamming.
How can Google discover
hidden text on your web pages?
It's relatively easy for
Google to find out if your
website contains hidden text.
However, it's difficult to
find out whether a page uses
hidden text for legitimate
reasons or not.
Google's spam filters might
be applied to your website
if the following happens:
- The hidden content contains
keywords that are unrelated
to the rest of your content.
- The hidden text contains
too many keywords. If a
large part of your web page
content is hidden, your
website might look suspicious.
- You overuse "legitimate" ways
to hide text on your web
pages. This might flag your
site for a human review.
- One of your competitors
reports your site to Google
because he detected spam
techniques on your site.
Google won't ban your site
if you use hidden text in a
way that appears to be legitimate.
They try to detect intent. Don't
try to cheat search engines.
If you use ethical
search engine optimization methods then
you don't risk getting banned
from the search results.
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