常见google优化FAQ

常见google优化FAQ

作者：佚名    文章来源：网络    点击数： <script language="javascript" src="/google/GetHits.asp?ArticleID=76" type="text/javascript"></script>     更新时间：2006-2-21

<script language="javascript" src="/AD/200604/1.js" type="text/javascript"></script>   Link Popularity 1.)Why don't all my links show up when I use the link: command? A. At this moment Google is only showing a sampling of the total links to you. A few months ago it seemed as though they were only showing those backlinks which were PR4 or higher. This has, however, changed and which links Google chooses to show is now a topic of debate. As far as numbers, it is only important to remember it is a sampling and to just continue your link building strategy. back to top 2.)How come I get a different amount of links when I use www.example.com and example.com? A. In the search engines eyes, these are two different domains and therefore have different amounts of sites linking to them. It is best to be sure your link partners are only linking to one of these as it would be considered extremely rare for both "domains" to rank high at the same time. back to top 3.) What's a Link Farm? A. A set of web pages that have been built for the sole purpose of increasing the number of incoming links to a web site. This is done in order to increase link popularity and search engine rankings. Link farms usually require a reciprocal link from sites seeking listings. Link farms are a known spam tactic and sites that participate in them are likely to be penalized or banned from the major search engines. back to top 4.) What is "Anchor Text"? A:Anchor text is the text that you use within a html link. For example ( This is Anchor Text ) The anchor text that you use, should reflect the keywords of which you are trying to get a higher listing for. It should also accurately describe what information will be found on the next page if you click on the link. back to top 5.) What is an "IBL"? A: An "IBL" is an 'In Bound Link'. When a site links to yours, that link is an IBL. The same thing as a BL (Backlink). back to top 6.) What is cross linking? A: When multiple sites link to each other for the purpose of increasing link popularity. back to top 7.) How long after I am listed in DMOZ should I start to gain the benefit of the "4000" new links? A: It usually takes close to a month for your listing to show up in Googles Directory which is the most common asked about one. Then to gaine the full benefit it many times takes 1 - 2 years to fully propogate. This is a good way to make sure all links realize their full potential as that slow growth is something that Google seems to like. back to top 8.) Would I be penalized if a "Link Farm" or a "Bad Neighborhood" linked to my site? A: No, you have no control over who links to you and this would be an easy way for a competetior to sink your site. What you SHOULD be careful of is if you are linking to them. This CAN hurt your site and should be avoided. Search Engine Optimization 1.) How do I use a Robots file or do you have an example of one? A. You mean robots.txt. It's a file in the main directory of a website which tells the search engine spiders where they are allowed to go. A basic, spider can go anywhere file is: User-agent: * Disallow: You can disallow folders or files by putting this into the file: User-agent: * Disallow: /foldername/ back to top 2.) Should I use a Site Map? and does anyone have an example of one? A: Every site should have a sitemap of some sort. It provides a way for visitors to navigate your site, as well as a shortcut for bots to crawl all your pages. Google for "sitemap" and you'll find nice examples, although it would be advisable to follow Google's official guidelines and keep the number of links per page under 100. back to top 3.) How do I tell how many people are searching for my keywords? A: The Search Term Suggestion Tool here will show you number of searches per month on Overture's network. You can also use Digital Points Keyword Suggestion Tool back to top 4.) What are SERPs? A: Search Engine Result Pagesback to top 5.). I am number 5 in Yahoo, but not in the top 1,000 in Google. Why? A. Yahoo and Google use two different algos to come up with their SERPs - Yahoo favors on- page optimization such as H1 tags, keyword density, etc while Google favors off page like in bound links. If you have done more on page then Yahoo will rank higher and vice versa. As part of this if you are now addressing your off page then you need more backlinks with anchor text and time for these links to age (Google lag). back to top 6.) Is there a way I can find out where I rank? A: There are two sites you can use if you are just checking a few keywords - www.googlerankings.com for Google and www.yahoosearchrankings.com/ for Yahoo. If you are looking to track multiple keywords over time then the best (and free) tool is Digital Points Keyword Monitor at http://www.digitalpoint.com/tools/keywords (Google Only) back to top 7.) What is an "ALGO" ? A: An 'Algo' is an abbreviation of 'Algorithm'. (In short, the mathematical formula or calculation that Google use in order to rank websites.) back to top 8.) What is Hidden Text? A: Text that is visible to the search engine spiders but not to site visitors. Hidden text is primarily used to add extra keywords in the page without actually adding content to a site which may mostly consist of images. Most search engines will penalize Web sites which use hidden text. back to top 9.) What is cloaking? A: Determining which search engine spider is visiting a web page and then giving each spider a page optimized for it's particular algorithm. This method of search engine optimization can result in a website being removed from the major search engines. back to top 10.) What is a doorway page? A: A method of search engine optimization considered to be SPAM. These are pages created for nothing but the purpose of ranking first for a particular keyword phrase. These pages usually lack any significant content and do not reflect the tone of the rest of the website. If a search engine determines a website has used this tactic then the website will be removed from the search engine permanently. back to top 11.) What is Geo Targeting? A: The distribution of ads to a particular geographical area. For example, you can use a place name in your keyword, such as "Texas Web Design". Some search engines allow you to target specific countries – and languages – without using keyword relevance. back to top 12.) Do XHTML pages rank better than HTML-pages? A: No. They have the same value. Google however puts more weight to well structured content, and thus XHMTL is in most cases more suitable option. back to top 13.) Does using CSS affect my rankings? A: Not directly. Googlebot does not (at the moment) read CSS-files. Using CSS makes pages lighter, and page structure more organized. Thus using CSS could lead to better rankings. When adding CSS styles to page, it is recommend to put them to external file (using link-tag). back to top 14.)Should I use submission software to make sure all the search engines have me included? A: Most submission programs that promise to "Submit Your Site to 1000's of Search Engines" are used to harvest your email address for spammers. The truth is there are only a handful of Search Engines used by enough people to justify a submission and these can all be submitted by hand. Even better yet is to get other sites to link to you. Search Engine spiders follow these links and you will be indexed naturally. Submission programs are unnecessary and may actually hurt you. back to top 15.) I submitted to DMOZ but didn't hear anything. Should I resubmit? A: You should only submit once as resubmitting only deletes your original request and lengthens your wait. Resubmitting too many times can have you classified as SPAM and blocked. You can also submit to a "normal" category and a "regional" one if it fits. You must be physically located somewhere to be able to also submit to regional and read their guidelines as certain sites like real estate are the exception. They have set up a forum as a way of letting you know your status and this is a much under posted and under used area of DMOZ - The address is http://www.resource-zone.com/forum/ . Just remember to take the time to follow the posted directions. Google General 1.) What is the "Sandbox Theory"? The sandbox theory proposes that Google has a unique ranking element in their algorithm that has been affecting sites whose major SEO efforts began after March of 2004 (this would include all sites registerd after this date). The criteria, elements and solution of the 'sandbox' have not yet been identified or publicized by the SEO community, but ongoing discussion and testing have determined that the two of the most likely issues creating the sandbox could be: Age of backlinks - older backlinks now carry greater weight at Google SEO specific filters - Google is actively attempting to filter sites out of their index that are actively optimizing (link-building, etc) or appear to have un-natural attributes (optimized pages, links, anchor text, etc.) If your site is ranking well for specific keyword phrases at engines like Yahoo!, Teoma, MSN & for the allin sets of searches at Google (allinanchor:, allintitle:, allintext:, etc.) but not listed in the top 50-100 results at Google, the sandbox effect may be at work. However, it is important to keep in mind that this phenomenon is an 'unknown' algorithm piece at Google and standard optimization tactics, even by some of the best and most experienced SEOs have yet to consistently beat this effect. back to top 2.) When does Google update their SERPs (When is the "dance")? A. There is no longer a Google "dance" per se as SERPs tend to be updated constantly. back to top 3.) I now use the link: command all the time, is there a list of the other commands I can use in Google? link:www.domain.com (returns a list of backlinks that google has indexed. Only a small selection is listed however.) related:www.domain.com (returns a list of sites that google sees as related to the topic on your page. At present, not very accurate.) allinurl:keyword (returns a list of pages and sites that contain the 'keyword' in their url.) site:www.domain.com (returns all pages of the domain that google has crawled and indexed.) allinanchor:keyword (returns a list of pages and sites that contain the keyword as anchor text in their backlinks.) cache:www.domain.com (will show the current cache that google has for the page) info:www.domain.com (will return information that google has for the page) allintitle:keyword (returns webpages that have the specified keywords in the title) intitle:keyword (returns listings of webpages that have only the specific keyword as the title.) You can find all the Operators at Google Advanced Operators back to top 4.) Am I banned in Google? A: You can tell if you are banned or not indexed in google, by using the 'site:' command in Google's search. (ie. site:www.domain.com) back to top 5.) What is the first thing you would check for if you saw your site slip down the listings at Google? ( i.e. I'm not on top anymore, what happened? ) A: A drop in backlinks. Obviously when not aggressively acquiring new backlinks to your site from day to day, existing backlinks may even deteriorate in value. The referring site may disappear, be changed, lose relevance or lose PR itself, reducing the PR that is passed onto you. back to top 6.) When I look up my site in Google, I am #23, but when my friend in California looks it up I am #31. Which one is right? A: They both are! Actually, a more accurate explanation is that Google using multiple datacenters that deliver the results you see. The datacenter that is used depends on your geographical location. It is very common to see a small difference in results depending where you are. Sometimes, results can differ when you move just a few miles away! back to top 7.) Why does Google hate me/pick on me? A: "Google" does not pick on individual sites but instead allows complex mathematical equations to decide the value of your site in any particular search. Although it may sometimes feel like they are picking on you, most times a ban or bad results can be traced to a small piece of bad or misguided SEO. back to top 8.) Should I submit my website to Google every month? A: No, you only need to do it once. In most cases you will not even need to submit your website to Google. If you are active in building links to your website then Googlebot will frequent your site soon, and thus include it in the index. back to top 9.) My site is not cached in Google, I've submitted it to google numerous times but I'm not seeing the googlebot crawl my entire site. I'm also seeing an incomplete listing. A: Sometimes the googlebot will visit, and leave, only to come back at a later time in order to crawl all of your pages. If a site has no cache, or an incomplete listing, it has not been crawled and indexed properly yet. The best thing you can do is get more in bound links to your site, so that the googlebot arrives to your site from more than 1 source. Page Rank 1.) I am changing my domain but want to keep my PR, how do I do it? A 301 redirect is the most efficient and spider/visitor friendly strategy around for web sites that are hosted on servers running Apache (check with your hosting service if you aren't sure). It's not that hard to implement and it should preserve your search engine rankings for that particular page. If you *have* to change file names or move pages around, it's the safest option. If you are unfamiliar with editing your .htaccess file, you should ask your hosting company for help. back to top 2.) I have a new site but it has no PR .I have backlinks, etc When does it update? A. It updates internally every day or so, (every time google's spider follows a link through to your site) you may see a difference in the SERPs very soon, however you will not see the backlink appear in a link:www.domain.com command search in google, until google do an official backlink update. back to top 3.) I noticed my PR in the Google directory is different from my PR on the toolbar, Why? A:This is because the google directory gets its listings from DMOZ. As with google's PR and backlink updates, it only updates its directory every so often, so your site may be showing an old PR. There are also a host of "theories" such as "Googles Directory is on a scale of 0 to 8" and "The Directory PR is actually a comparison between you and other sites in the Directory". No matter what you may believe, it is most important to state that they rarely match and this is VERY common. back to top 4.) When does Google update backlinks and PR? A: There isn't a set schedule as many times an update is skipped or late. Backlinks on average are updated around once a month while PR has seemed to move to quarterly. The best way to "guess" when the next update will be is to utilize the SEOChat Calendar