SEO 什么该做什么不该做

Let me tell you WHAT TO DO by telling you WHAT NOT TO DO:

Don’t Ignore Your Audience

Write about topics your audience cares about. Like what? Find out, by conducting a poll (like I did), scan some relevant bulletin boards or forums, look for common topics in customer emails, or do some keyword research. There are great free keyword tools like the Google Keyword Tool or SEO Book’s Keyword Tool and loads more. The plan is not to spend your life doing keyword research but just to get a general idea of what your visitors are interested in.

Don’t Be Dense About Keyword Density

Once you have a topic for readers; help search engines find it. Keyword Density is the number of times a keyword appears in a page compared to the total number of words. You want to make sure your keywords are included in the crucial areas:

the Title Tag

the Page URL (friendly URL)

the Main Heading (H1 or H2)

the first paragraph of content.

at least 3 times in the body content (more or less depending on amount of content and if and only if it makes sense).

Most people aim for a keyword density of 2% (i.e. use the keyword 2 times for every 100 words). But what if your keyword phrase is “SEO for Web Designers and Web Developers” how many times can you repeat that before it sounds just plain unnatural? Write for your readers not for search engines. If you follow the tips in this article you’ll be writing naturally for your readers; which works for the search engines too.
Warning: Do not over fill your page with the same keywords or you might be penalized by search engines for keyword stuffing.

Don’t Ignore Relatives

In this article, it makes sense to mention topics like “keyword research”, “search engine crawlers” and “title tag use”, but what if I mentioned a highly trafficked term like “cell phone plans”… kind of out of context right? So use other keywords and topics that make sense to your audience, the search engine measures keyword relations to determine relevancy too.

Cars and Tires (yes)

Web Design and Flying Monkeys (no…well sometimes)

Don’t Be Afraid of Internal Linking

Do you want the search engine to see every page on your website? Help the search engine spider do its job.There should be a page (like a sitemap or blog archives) that links to all the pages on your site.
Tip: You can promote the more important pages by inserting text links within body content. Make sure you use relevant linking text and avoid using "click here" (as mentioned earlier).

Don’t Ignore Broken Links

You should always search for and fix the broken links on your site. If you've removed a page or section, you can use the robot.txt to prevent the spiders crawling and indexing the broken links. If you have moved a page or your entire website, you can use the301 .htaccess to redirect to a new URL.
Tips: You can use the Google Webmaster Tool to find broken links and your 404 Not Found errors.

Don’t Be Inconsistent With Your Domain URL

To search engines, a www and a non-www URL are considered two different URLs. You should always keep your domain and URL structure consistent. If you start promoting your site without the "www", stick with it.

Don’t Be Scared of Semantic Coding

Semantic and standard coding not only can make your site cleaner, but it also allows the search engines to read your page better.

Search Result Position

Coding and setting up your site to be SEO friendly can improve how well a search engine can access your website, it doesn’t guarantee you’ll end up at the top of the search engine result page (SERP). There are many factors in determining the search result position, but here are the basics:

PageRank

Some professional SEO’s pay attention to Google’s PageRank and some don’t. In my experience it doesn’t hurt to have a high Google PageRank. It’s a nice little benchmark to let you know how important Google sees your web page as. You can improve your PageRank by following the tips above and building-up quality backlinks. If you want to learn how PageRank works, Smashing Magazine has a very good article.

Domain Age Before Beauty

You might be surprised to learn that domain age is also a factor in the search engine algorithm. Older domains have a history, and their content is looked at as more credible than the website that got started last week. Older domains sometimes get the edge in search results.

Be Patient

You may have done every single thing right., but your site is still not showing up in the search engines for your target keywords. Why? Because everything takes time. It takes time for the search engines to index and rank your site (especially for new domains). So, be patient.
Another reason — it could be the keywords that you’re trying to target are very competitive. Try altering the keywords on the page and you may have different results. Remember, you are competing with millions of web pages on the internet.

Resources to Help You Go Farther

Google Webmaster Tools

Google Webmaster Tools allow you check the crawl statistics of your site. If you haven't been using this great tool yet, login to theGoogle Webmaster Tools, then add and verify your site.
After you've verified your site, you can find out:

When was the last time Googlebot crawled your site

HTTP errors

404 Not Found errors

External link counts

What keywords people are using to link to your site

What are the top search queries to your site

And more.

Free SEO Tools

Here are some online SEO tools that you can use to check your PageRank, Link Popularity, Search Engine Position, Keyword Density, etc.

www.pagerank.net

www.iwebtool.com

www.seochat.com/seo-tools

www.webconfs.com

tools.seobook.com

SEO Resources

Here are some external links where you can learn more about SEO:

www.seomoz.org

www.seochat.com

searchenginewatch.com

www.searchengineworld.com

www.mattcutts.com

Final Remarks

Please note that I'm not a SEO expert (although I manage to get very high rankings on all my sites: N.Design Studio, Best Web Gallery, and Web Designer Wall). The tips I share in this SEO guide are based on self-taught knowledge and years of web design experience.
Good Luck.

Notes:
1.了解用户感兴趣的关键词。
2.确定关键词出现在Title tag，Friendly URL，H1 or H2，the first paragraph of content，at least 3 times in the body content，之中不可滥用关键词。
3.不要忽视关键词的联系，比如“Cars and Tires"。
4.站点应该有个页面（比如：sitemap or blog archives）去链接网站的所有页面。
5.可以通过插入一些文本链接去推荐更多重要的页面在内容里，避免使用”Click here“。
6.不要忽视坏链，如果你移除些页面或者删除了整个网站，可以使用robot.txt去阻止网络蜘蛛索引坏链，利用301.htaccess去 引导到新的URL。
7.应该保持域名和URL一致，with "www"。
8.语义和标准代码会使你的页面简洁，促进搜索引擎阅读你的页面。
9.域名年龄长久更会让搜索引擎信任。
10.耐心，搜索引擎需要花些时间索引和排名你的网站，特别是新domains，记住，在互联网上是跟成千上万的网页竞争。
crucial:重要的； tires:轮胎；