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【转】SEO书籍《搜索引擎优化(SEO)原则》

  SEO不是管理者的任务,而是每一个美工,每一个程序员,每一个更新员的基本工作。首先要确定足够突出的关键字,通常网站业务方向在哪,计划把哪种业务与品牌搭配做得最好就定哪些关键字(利用wordtracker等工具可以查询关键字的热门程度)。不一定要把关键字做得大而全,一个100页的站每一个单独页面中的某个关键词被1个访问者搜到的可能性,比1页中堆满关键词被100个访问者同时搜到的可能性大得多。

  解决方案:

  1.采用全静态形式

  基本上主流SE都是优先处理站内静态页,动态页面很可能只收录一小部分。因此应尽量更改全站非电商处理页至静态页面。举例说明,目前报童站内光刊物名称就足够成为重要的关键词集,再加上专题咨讯内容可以实际被SE收录的页面有数百页,却因为动态页面原因,只被收录一小部分。这里说的做静态页不是由美工手工去做静态页面,而是由系统批量从数据库中读出内容并生成静态页及索引,目前可参考的成熟的做动静态页结合型站点的站点生成系统有很多,其中“风讯”和“动易”都做得相当完善。

  2.META标签规则

  有2个META标签对SEO有实际作用,即description和keywords。两者皆为SE可容忍的隐藏关键字集,虽然各大SE一再更改算法,但这2个META标签仍对搜索结果有影响。Description标签原本用于SE缩略内容,现在只作为描述内容的辅助,keywords仍然是自己推荐的站内关键词,长度皆不宜超过128个字符,且绝对不可重复堆砌以免被判做弊。比如报童keywords如下:报童,报童网,中国最大,报刊,整合营销,平台,期刊订阅,订阅期刊,免费订阅,期刊,杂志,周刊,订阅,网络媒体,浏览刊物,邮寄,媒体,电子杂志,专业杂志,电子文摘,商业经济,网上订阅,折扣,打折,数据库,征订,免费送货,上门,媒体,公司,消费者,商业性杂志,渠道,期刊排行,专题,军事,母婴,妇幼,保健,电子,文化,报纸订阅,杂志订阅,报刊订阅,发行,征订,广告,电子商务

  3.TITLE规则

  TITLE标签是重要的搜索依据之一,内容不仅要包含本站主题、标语,还要尽量概括该页内容,比如报童代理的杂志《计算机OFFICE》介绍页,故意在页面里加上如下句子:“”,全是与页面内容相符的关键字(并不一定要以下划线分隔,但一定要以这种思路来确定关键字集组成方式)。

  4.关键字密度

  SE的算法基本都不允许标签中出现重复关键字,页面内容中重复次数也不能太多,以3%到8%为适宜,但有些内容介绍类不可能含有特定关键字,可以考虑在页面中故意制造带含关键字的TITLE的链接,或放置ALT替代文字内包含关键字的图片

  5.图片链接替代文字

  除了有链接的图片外,尽量给所有图片做链,即使该图片不需要链接,也可以点击查看该图,以方便在图片链接中添加关键字。最简单举例我们和人换LOGO,别只给一张图,要给对方写清了,不能嫌麻烦,而站内所有图片链接类,在写代码时候就要考虑到这些内容,尽量不忽略小细节。

  6.独立导航地图

  SE SPIDER在搜索页面时会优先收录网站导航地图,这样就有2种方法来优化此节,1是在站内制作详尽的站点导航地图,并故意在链接上面加上sitemap,站点地图之类的标记(优先考虑)2是利用免费域名制作专门的桥页(容易被判作弊,但不影响主域名,不推荐)。

  7.页面长度

  页面长度过长或过短都不利于SE收录,目前报童的状况是页面太短,而票务页面看起来长,实际信息承载量却很少,必须增加信息区域容量,同时也有添进更多关键字的可能。

  8.尽量采用文字导航并设定关键字

  SE SPIDER会优先搜索文字链,导航所载文字通常就是关键字本身,如果用图片而不用文字就降低了关键字的作用。页面内所有文字绝不可与网页背景色相同或相近,即使在特殊背景中。比如在全白的网页上放个黑底的表格再在其中写白字,而白字中包含关键字,会被SE认为作弊而删除索引。错误示例:票务在线,这几个字实际上就是白底上面放白字,虽然有可能并不难看。

  9.PR值

  这里必须说一下PR的概念,因为GOOGLE的PageRank值和ALEXA的Rank值一样是判断一个网站优劣的重要凭据。PR是Google排名运算法则(排名公式)的一部分,用来标识网页的等级重要性,级别从1到10级,10级为满分,PR值越高说明该网页越受欢迎(越重要),一般超过4就算做得不错的站点。先看下这个站点http://www.maketop.net/,页面下上既有检查META标签也有查询PR的地方,在这里可以看到目前报童网PR为4,票务在线为5,表明已获得相当关注程度,如果能够达到7,说明我们获得了真正的成功。

  以下资料来自GOOGLE官方:

  在计算网站排名时,PageRank会将网站的外部链接数考虑进去。可以这样说:一个网站的外部链接数越多其PR值就越高;外部链接站点的级别越高,网站的PR值就越高。例如:如果ABC.COM网站上有一个XYZ.COM网站的链接,那么ABC.COM网站必须提供一些较好的网站内容,从而Google会把来自XYZ.COM的链接作为它对ABC.COM网站投的一票。

  Google的Pagerank系统不单考虑一个网站的外部链接质量,也会考虑其数量.比方说,对一个有一定PR值的网站X来说,如果你的网站Y是它的唯一一个外部链接,那么Google就相信网站X将你的网站Y视做它最好的一个外部链接,从而会给你的网站Y更多的分值。可是,如果网站X上已经有49个外部链接,那么Google就相信网站X只是将你的网站视做它第50个好的网站。因而你的外部链接站点上的外部链接数越多,你所能够得到的PR分值反而会越低,它们呈反比关系。

  一般情况下,一个PR分值大于等于6的外部链接站点,可显著提升PR分值。但如果这个外部链接站点已经有100个其它的外部链接时,那能够得到的PR分值就几乎为零了。同样,如果一个外部链接站点的PR值仅为2,但你却是它的唯一一个外部链接,那么你所获得的PR值要远远大于那个PR值为6,外部链接数为100的网站。

  首先让我们来解释一下什么是阻尼因数(damping factor)。阻尼因素就是当你投票或链接到另外一个站点时所获得的实际PR分值。阻尼因数一般是0.85。当然比起你网站的实际PR值,它就显得微不足道了。现在让我们来看看这个PR分值的计算公式:

  PR(A) = (1-d) + d(PR(t1)C(t1) + ... + PR(tn)C(tn))

  其中PR(A)表示的是从一个外部链接站点t1上,依据Pagerank?系统给你的网站所增加的PR分值;PR(t1)表示该外部链接网站本身的PR分值;C(t1)则表示该外部链接站点所拥有的外部链接数量。大家要谨记:一个网站的投票权值只有该网站PR分值的0.85,而且这个0.85的权值平均分配给其链接的每个外部网站。

  设想一个名为akamarketing.com的网站,被链接至PR值为4,外部链接数为9的网站XYZ.COM,则计算公式如下:

  PR(AKA) =(1-0.85) + 0.85(410)   PR(AKA) = 0.15 + 0.85(0.4)   PR(AKA) = 0.15 + 0.34   PR(AKA) = 0.49

  也就是说,如果我的网站获得一个PR值为4,外部链接数为9的网站的链接,最后我的网站将获得0.49的PR分值。

  再让我们看看如果我的网站获得的是一个PR分值为8,外部链接数为16的网站的链接,那么我将获得的PR分值将是:   PR(AKA) = (1-0.85) + 0.85(816)   PR(AKA) = 0.15 + 0.85(0.5)   PR(AKA) = 0.15 + 0.425   PR(AKA) = 0.575

  上述两个例子表明,外部链接站点的PR值固然重要,该站点的外部链接数也是一个需要考虑的重要因素。

  好了,大家无须记住上面的公式,只要记住:在建设你自己网站的外部链接时,应尽可能找那些PR值高且外部链接数又少的网站。这样一来你网站上这样的外部链接站点越多,你的PR值就会越高,从而使得你的排名得到显著提升。

  10.纵深结构

  对SE SPIDER来讲,网站结构扁平,由少数主线深入,搜索及收录更容易。

  主

  支 支 支

  支 支 支 支 支

  …………………………这就不是扁平形

  支 支

  主 次 次 次 次 次………这就是扁平型

  支

  11.网络实名和竞价排名

  网络实名和竞价排名都不是免费的午餐,基本上就是给钱就给上,目前国内提供竞价排名的两个主要SE为YAHOO一搜和BAIDU,价钱从一个月几百到几十万不等,如果全套做下来花费相当高,建议选取少量关键字来做。

  以网络实名来举例,目前”报刊”(3000/年),“报刊订阅”(500/年),“订阅”(被保护),以YAHOO关键字来举例,“订阅”(500/年)这个词只有大华订阅网一家购买,但仍然可以购买固定排名(2000/年)且无人竞争,则买下来一定排第一。

  12.GOOGLE的ADSENSE和ADWORDS

  GOOGLE会优先收录参与GOOGLE的ADSENSE和ADWORDS广告服务的站点,但GOOGLE广告区很难看,影响页面效果。

SEO is not a task manager, but every art and every programmer, updated every member of the basic work. First of all, sufficient to identify the prominent keywords, websites are usually in the direction of the business, which plans to brand with which to do business with the best set on which keywords (such as the use of wordtracker keyword query tool popularity). Keywords do not necessarily large, one of the 100 stations every single page of a Key words were a visitor found the possibility of a more than full in 100 words by visiting At the same time, those who found the possibility of much greater.

Solution:

1. All-in the form of static

SE is basically the mainstream of priority stations static pages, dynamic pages are likely to include only a small part. Therefore, as far as possible to change the station's power in handling non-static pages to the page. For example, the current station newsboy light enough on the name of the publication of an important set of keywords, along with thematic content of the advisory can actually be included in the SE page has hundreds of pages, but because the dynamics of the reasons for the page, only a small part of the record. Here, said the static pages do not do it by hand art static page, but by the system volume from the database to read out the content and generate static pages and the index may refer to the current maturity to do the static and dynamic page-binding site of the site generation system There are many, "hearing the wind" and "easy to move," are doing well.

2.META labeling rules

2 META tags on the actual role of the SEO, that is, description and keywords. SE both tolerable hidden set of keywords, although the major SE to change the algorithm again and again, but this 2 META tags still have an impact on the search results. Description original label for the abbreviated SE, is described only as a supplementary content, keywords continues to be recommended by their words inside the station, are not the length of more than 128 characters, and should not be piled up so as not to repeat the sentence Zuobi. Newsboy such as the following keywords: newsboy, newsboy network, China's largest newspapers, integrate marketing platform, the journal subscriptions, journal subscriptions, free subscriptions, periodicals, magazines, magazine subscriptions, online media, visit the publication, by mail, media, electronic magazines, Professional journals, e-digest, trade and economy, on-line subscription discounts, rebates, databases, subscriptions, free shipping, door-to-door, media, companies, consumers, business magazines, the channel ranked journals, thematic, military, mother and child, Women and children, health care, electronics, culture, subscribe to the newspaper, magazine subscriptions, newspaper subscriptions, distribution, subscriptions, advertising, e-commerce

3.TITLE rules

TITLE tag is an important basis for one of the search, which includes not only the theme of this site, posters, but also try to summarize the contents of the page, such as newsboy Agent magazine "Computer OFFICE" page, introduced deliberately in the following pages, together with the sentence: "" , Is in line with the content of the page and keyword (not necessarily in order to underscore separated, but must in this line of thought to determine the composition of the keyword set).

4. Keyword density

SE algorithms are basically not allowed to appear in duplicate keyword tags, page content in the number of repeat can not be too big to 3% to 8% for the appropriate, but some types of content can not be introduced to contain certain keywords, could be considered in the page The deliberate creation of the zone with TITLE keyword links, or to place an alternative ALT text contains keyword picture

5. Picture alternative text link

In addition to links to the picture, the picture as far as possible to do all the chain, even if the pictures do not need to link can also click to see the map, to facilitate a picture link to add keywords. The simplest example of our people and for LOGO, do not just give a map to give the other side of Xie Qing, can not find it troublesome and stop all types of image links, write in code when it is necessary to take into account the content of these, as far as possible not to lose sight of small Details.

6. Independent navigation map

SE SPIDER in the search page will be included in the priority site navigation map, so there are 2 kinds of methods to optimize this section, in a station to produce a detailed map of the site navigation and deliberately link above to add sitemap, site maps and the like Tag (priority) 2 is free to use the domain name to produce a special page of the bridge (was easy to cheat, but does not affect the main domain name, is not recommended).

7. Length of the page

Page length is too long or too short not conducive to the SE includes the current state of the newsboy page is too short to look long and ticketing page, the actual information carrying capacity is very small, the need to increase the capacity of regional information, at the same time, Tim into the more The possible keywords.

8. As far as possible and set the keyword text navigation

SE SPIDER will first search text links, navigation keyword is usually contained in the text itself, if the picture with words rather than on reducing the role of the keyword. All text pages and pages can not be the same or similar background color, even in the special context. For example, during the all-white pages put on a black table and then write them in white, white and contains keywords that SE will be cheating and delete the index. Sample error: on-line ticketing, the words are actually put on a white background above white, although there may not be bad.

9.PR value

Here you have to say that the concept of PR, because the PageRank value GOOGLE and ALEXA is the same as the value of the Rank of a website to judge the merits of important evidence. PR is the Google ranking algorithms (ranking formula), used to identify the page level, from level 1-10, 10 for the full score, PR on the page, the higher the value of the more popular (more important), General More than 4, even if the site has done a good job. Look at the site under the http://www.maketop.net/, both on the next page, check META tags are also PR inquiries, we can see here the current network newsboy PR 4, online ticketing for 5, has shown that Was very concerned about the extent, if we can reach 7, we get a real success.

GOOGLE official from the following information:

Web site ranks in the calculation of the time, PageRank of the site will take into account the number of external links. It can be said: A few links to external sites, the more the higher the value of their PR; links to sites outside of the higher-level, the site of the higher value of PR. For example: If ABC.COM site XYZ.COM there is a link to the site, then ABC.COM Web site to provide better content, so Google will XYZ.COM from the link as a site for its ABC.COM Vote.

Google's Pagerank system is not considered a site of the quality of external links, it will also consider the number. For example, a certain PR value of the Web site of the X, Y, if your site is that it's the only external link, Google X will be on the site believe that your website Y, as it is best to do an external link, which will give you the Web site Y scores more. However, if X Web site has 49 links to the outside, then the Google Web site on the X believe that you will only do it as the site of the 50th a good site. Therefore external links to your site on the number of external links, the more you can get the PR value will be lower, they showed the inverse relationship.

Under normal circumstances, a PR score greater than or equal to 6 external site links, can significantly improve the PR value. However, if the external site has links to 100 other external link, it will be the PR value of almost zero. Similarly, if an external link to the PR value of the site was only 2, but you have it is the only external link, you get the PR value is much greater than the PR value of 6, a number of external links to 100 sites .

First of all, let us explain what is the damping factor (damping factor). Damping factor is that when you vote or link to another site when the actual PR value. Damping factor is usually 0.85. Of course, compared to the actual site of your PR value, it appears to be negligible. Now let us take a look at the PR value of the formula:

PR (A) = (1-d) + d (PR (t1) C (t1) + ... + PR (tn) C (tn))

One PR (A) that is an external link from the site on t1, according to the Pagerank? System to increase your site's PR value; PR (t1) that the external links to websites of their own PR score; C (t1) That the external link site owned by the number of external links. We must bear in mind: a site of the right to vote, only the value of the site's PR score of 0.85, 0.85 and the average value of the right to be allocated to each of its links to external sites.



PR (AKA) = (1-0.85) + 0.85 (410) PR (AKA) = 0.15 + 0.85 (0.4) PR (AKA) = 0.15 + 0.34 PR (AKA) = 0.49

In other words, if my site was a PR value of 4, a number of external links to the Web site link 9, finally, I will be the site of the PR score of 0.49.

Let us now look at the web site if I get a PR score of 8, a number of external links to the Web site links to 16, then I will be the PR value will be: PR (AKA) = (1-0.85) + 0.85 (816) PR (AKA) = 0.15 + 0.85 (0.5) PR (AKA) = 0.15 + 0.425 PR (AKA) = 0.575

These two examples show, Links to external sites PR value is important, the site of a number of external links is also a need to be considered an important factor.

Well, you do not remember the formula above, as long as keep in mind: to build your own Web site links to the outside as far as possible to find those high value of PR and external links to a number of small sites. As a result of your site links to external sites do more, your PR value will be higher so that your ranking significantly improve.

10. Deep structure

On the SE SPIDER, the flat structure of the site by a small number of main line depth, and included in the search easier.

Main

Support Support Support

Support Zhizhizhizhi

... ... ... ... ... ... ... ... ... ... This is not flat

Support Support

Primary and secondary sub-sub-sub-sub ... ... ... This is flat -

Support

11. Networks and real-name bids ranking

Internet real-name bids and the number is not a free lunch, and basically gave you the money, the current top bid to provide two YAHOO for a major SE and found BAIDU, the price from a few hundred a month to hundreds of thousands of range If you do a full set down a very high cost, proposed to select a small number of keywords to do.

For example, to network with their real names, the current "newspaper" (3000 /), "subscribe to newspapers and periodicals" (500 /), "subscription" (protected), YAHOO keywords, for example, "subscribe" (500 / year) that Dahua term only to buy a subscription network, but still be able to buy a fixed number (2000 / year) and no competition, it must buy in the first row.

12.GOOGLE the ADSENSE and ADWORDS

GOOGLE priority will be included in GOOGLE to participate in the ADSENSE and advertising services ADWORDS site, but the area is difficult to see GOOGLE ads affect results page.

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