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Front to introduce you to the link exchange of important reference factors, we are interested can go to see, today to give you some of the links we are determined not to change, first of all we know that friendship links can enhance the overall weight of the site, promote keyword ranking and enhance the PR value and many other benefits, High-quality links can give the site keyword to bring a good ranking. Good friendship links, can be said to be very selfish. But the link is also a double-edged sword, if you and some bad sites do a friendship link, then not only will not make their own website benefits, conversely will be the other side of the burden, then today to introduce what kind of friendship link is resolute cannot change.
First, the cheating website resolutely does not change
For and cheating websites, you can't link with them because they will involve you. The other site is K, then you will also be affected. For the query whether a website for cheating by K, can go to Baidu site for his website, home snapshot is not the first, domain: Home is not the first can also do a reference, but also to view the history of the site to see whether the hair has been plucked, then you have to analyze or go to inquiries. There are some Baidu, Google blocked some of the sites, must not and they do. Exchange links Please major Webmaster must be careful.
Second, JS script turned resolutely not to change
Some sites are linked to the use of JS script, seemingly normal, in fact, if you do not check the page code, you can not find the script is actually JS, so we have to do the friendship link when we must check, not to save time to do directly.
Third, refuse to change the site resolutely
There is such a situation do not know whether you have encountered, and some webmaster playing the banner of the three-way link, so that you link to his real commercial site, but he is from a spam website link to you. The most common form of this spam site is the garbage directory and a number of navigation sites, there is no weight, is specifically used to do friendship links.
Four, robots.txt shielding friendship link resolutely do not change
Some web site links seem to be very normal, but the use of robots.txt shielding, so that search engines do not include links.
Five, links plus nofollow resolute not to change
Links Use the nofollow attribute, or use the script to turn, such links are actually not a normal link, and can not pass any weight.
Six, forwarding links resolutely do not change
Some sites to link to friends when the site to do a forwarding through the system, that is not directly linked to your station, but through a station to link the way, the last click can be linked to your station, but to improve the weight and PR is useless.
Seven, generate static camouflage resolutely do not change
Exchange links, you link to the other side of the index.asp, but this. asp file in the server is not the first suffix, the real suffix is index.html then your link will become one-way, so the exchange of links more check suffix.
Eight, show Drop-down list or scroll resolutely don't change
SEO is not very popular in the past, a lot of web companies to do the site, will be used in the Drop-down list or scrolling form to show friends link, this effect is there, but most of the time is the tool to check out the back chain. In order to keep their interests from being compromised, it is advisable to pay more attention to it.
Ninth, the picture link resolutely does not change
Do friendship When you must use the text chain (search engine Although has been studying how to map, but still not ideal, at present, or text analysis mainly). It is advisable not to use picture links. Because the image link search engine scratching the other side of the site is not to grasp the picture link. It is of little use to you.
Tenth, link factory resolutely do not change
If you join a link factory, it is to be punished by the search engine. Don't sacrifice the future for a moment's rank. Not worth it. For example, like some 8207.html "> Navigation website, there is no substantive content, all are some links."
11th, the export chain took over the site resolutely not to change
In general, the friendship link of small and medium website is maintained at 30 or so, if the other side of the site has fifty or sixty links so there is nothing worth exchanging, friendship link export too much, you and the other exchange points of weight is very small, this kind of site is not necessary to exchange. The above content by the air filter http://www.dghepa.com/feeds, reprint please keep the article link, thanks.