Hi Mike, The text-indent property can be applied to block-level elements (P, H1, etc.) to define the amount of indentation that the first line of the element should receive. The value must be a length or a percentage; percentages refer to the parent element's width. A common use of text-indent would be to indent a paragraph:
**`P { text-indent: 5em }`**
The usage of text-indent:-9999px
to display a site logo or other image while hiding text should be avoided. It’s a technique used by web spammers trying to game search engines like Google, and is considered spammy behavior. Instead, use an tag and put the text inside its alt
attribute.
According to Matt Cuts (and some other comments) the best solution is to use an image with alt
andtitle
attributes. The alt
attribute is for SEO and the title
attribute is for accessibility. Using an image also makes sense for semantic markup. A company logo is actually an important piece of content.
**`# <a< span="">href="http://stackoverflow.com"> <img< span="">src="logo.png" alt="Stack Overflow" title="Click to return to Stack Overflow homepage" /></img<></a<>`**
<code>Well, recently, I'm thinking about SEO effects with using something like h1 {text-indent: -9999px; background: url('xyz') }...
I dont think I trust this anymore to be good for SEO. And I don't mean that it's actually "good" for it, because that would certainly be bad SEO techniques. I'm just thinking that it wouldn't be too far fetched to believe that in the search algorithms that anything that is negative text indent over ABC pixels, is considered spam and either isn't registered, or even worse, effects your site negatively.</code>
Hiding the contents of an H1 tag, such that the search engine is presented with textual content which is not visible to a visitor, is SEO Spamming, and can get the site banned if one of your client's competitors catches you doing it and turns you in!
It is, in fact, a form of hidden text spamming (itself "Black Hat", and explicitly banned by all of the major search engines). With the offense made all the worse by the fact you are doing it with an H1 tag, rather than non-emphasized text (Due to both the power of an H1, and the real estate it would take-up if rendered on-screen)
Google makes it pretty clear that hidden text spamming is prohibited. In fact, they have a web page in their anti-spam guidelines devoted to it! They also have a check-off box (the first one, in fact!) on their spam report page specifically dedicated to reporting this kind of spamming (see 3rd link - requires login).
The fact that Google may not explicitly list every means of hiding keywords does not therefore make a particular spamming technique legit. Indeed, as Google states in their Webmaster guidelines (see 1st link) -
"It's not safe to assume that just because a specific deceptive technique isn't included on this page, Google approves of it."
However, in this case, this method of hiding content is specifically prohibited. On their Hidden Text Spamming page (2nd link), Google lists examples of various tricks to hide content, including specifically -
"Using CSS to hide text"
Which is what you are proposing to do here.
While implementing this with external CSS files MAY make this a bit harder for Google to detect via automated means, it is also a VERY easy technique for someone to spot.
All it takes is for just ONE of your client's competitors (OR their SEO's) to wonder why the site is coming-up higher in the SERPs than they are, notice what you are doing, and turn you in to Google for spamming!
Any short-term gain you may obtain from such a technique is not worth the risk of getting your client's site banned from Google.
The original quote from the WebmasterWorld discussion referenced by the Search Engine Roundtable link Shaq Ali provided makes the following excellent point -
"For those who may be hiding things through CSS or negatively positioning content off screen to manipulate page content, I surely wouldn't do that with any long term projects. ;)
The penalty for getting busted using this technique I would imagine is a PERMANENT BAN.* No if's, and's, or but's, you're history. You'll need a pardon from the Governor to be reconsidered for inclusion. ;)"
(* - Bold replaced with caps)
#### Links:
* [http://www.google.com/support/webmasters/bin/answer.py?hl=en&answer=35769](http://www.linkedin.com/redirect?url=http%3A%2F%2Fwww%2Egoogle%2Ecom%2Fsupport%2Fwebmasters%2Fbin%2Fanswer%2Epy%3Fhl%3Den%26answer%3D35769&urlhash=woHy "New window will open")
* [http://www.google.com/support/webmasters/bin/answer.py?answer=66353](http://www.linkedin.com/redirect?url=http%3A%2F%2Fwww%2Egoogle%2Ecom%2Fsupport%2Fwebmasters%2Fbin%2Fanswer%2Epy%3Fanswer%3D66353&urlhash=e5Vy "New window will open")
* [https://www.google.com/webmasters/tools/spamreport](http://www.linkedin.com/redirect?url=https%3A%2F%2Fwww%2Egoogle%2Ecom%2Fwebmasters%2Ftools%2Fspamreport&urlhash=UReX "New window will open")
I hope that your query had been solved.