Sun Yunqun: Common Ways to hide text and links

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Hidden text: Black Hat seo in a way, through the code programming settings, so that search engines can crawl to, but users can not see, to improve the density of keywords and does not affect the aesthetic effect of a method.

Hidden Links: A method in Black Hat SEO that allows search engines to crawl to links, but users cannot see them. Usually Black hat seo to gain access to other people's Web site after the addition, is to increase external links and not be found one way.

Common ways to hide text and links:

There are many ways to hide text and links, which can be divided into: color hidden, css hidden, small size hidden, below I explained.

1, color hiding: Hides the effect by setting the text to the same color as the background.

Code case:

<font color= "#FFFFFF" > Hidden text </font>, the text is set to white, the default background color is white, you can achieve the effect of hidden text, But this is the most retarded hidden method, any search engine can be easily detected.

<table><tr><td background= background picture. Jpg><font color= "#000000" > Hidden text </font></ Td></tr></table>, the text set to black, if the background picture is also black, can also achieve the effect of hidden text, the current search engine has not been able to intelligently identify the color of the picture, I do not know whether the current easy to identify this hidden method.

2, CSS hidden: through the CSS code to achieve the hidden effect, is the current black Hat SEO use more frequent methods.

Code case:

<div style= "Display:none" > Hidden text </div>, the simplest but easiest way to get the most out of a hidden code.

. Texthidden {
display:block;/* Unified into block-level elements */
Overflow:hidden;
width:0;
Height:0;}
<div class= ". Texthidden" > Hidden text </div>, the width and height set to 0, and then more than partially hidden, you can achieve the effect of text hiding, the current search engine is not perfect to identify the individual CSS file all the code, This hiddenmethod may survive longer.

. Texthidden {
Positon:absolute;
Margin-top:-9999px;
Margin-left:-9999px;}
<div class= ". Texthidden" > Hidden text </div>, with absolute positioning to place it outside the visual area, although there is no real hiding, but also to achieve the desired effect.

3, small size hidden: The text size set to 1, and placed in the humble corner, the user is difficult to detect, and search engines can be read normally.

Code case:

. Texthidden {font-size:1px}
<div class= ". Texthidden" > hidden text </div>, This way only allows text to appear as 1 font size, but if more text, it will become very long, the user looks like a horizontal line, will affect the aesthetic effect.

. Texthidden {font-size:1px}
<marquee width= "1" ><div class= ". Texthidden" > Hidden text </div> </marquee>, this way is to display a large number of text in a scrolling marquee with a width of 1, so that only one point is displayed.

Summary: Most of the hidden text can be easily identified by search engines, this article summed up these methods in order to make it possible to correctly distinguish between black hat and white hat related technology, I hope you choose carefully.