vicwity's blog

八月 2006 - 博客

  • 学易语录(一)

    拱帖

    事件描述:
    一日,众同事讨论说,大大小小的论坛出现频率最高的字大概就是“顶”了,遇到好帖大家都会忍不住去顶一下的,学易论坛也不例外。一同事说,“顶”字用的太多,没创意,我们需要一新词。沉默1分钟后,一人说,那就让我们一起拱贴吧!

    小评:
    拱这个动词不由让我联想起的野猪,去年杭州还发生了野猪拱伤人事件。野猪拱人、我们拱帖,这个“拱”字还真有意思。

    烧野

    事件描述:
    一日,正当周末,快下班时,老代忽然问道:“谁知道杭州哪里可以烧…野的?”众人一愣,老代很快补充说“是烧烤”……烧野很快就流行起来了。

    小评:
    开始没明白老代为什么会把烧烤说成烧野,后来推敲出一个可能——当时老代想问烧烤,不知为何忽然想起野炊,一激动就说错了。不过这个假设估计永远得不到当事人的证实了,因为老代这人狡猾加嘴硬,是不会轻易坦白的。这个词能迅速流行起来,个人分析很大一个原因是读起来很有霸气!特别是“野”重读的时候。这个行为也颇具有“野味”,会让人有很多联想,如用火烧野味、用火烧野草、用火烧荒野……

  • 不要相信你的眼睛

    下面的图中A和B那两块是一个颜色,看看吧,你相信么?

    随便用那个软件测,结果都是这两块的颜色是一样的。

    A(R107,G107,B107)

    B(R107,G107,B107)

    很不可思议吧!不相信测测看。

  • 一张神奇的图片

    一定要聚精会神地盯着中央的十字看,

    你会发现,周围紫色的圆点渐渐淡下来,甚至消失。

    最后只剩下一个绿色的圆点在那里转!

    真的很神奇啊```

    PS:一定要聚精会神,稍微一走神效果就没有了。

  • 导致google搜索排名下降的因素(下)[英文]

    Internal Links

    1. Keywords - links that contain keywords should be related to the webpage they point to.
    2. Titles - links should have titles that represent the anchor text of the link (tool tip).
    3. Representation - link text should represent the linked page.

    Recommendations

    • You can place keywords within the anchor text of internal links but it is best to make sure they are relevant to visitors.
    • Do not stuff your anchor text with tons of keywords.
    • Keep the anchor text representative of the page you are linking to.
    • Make the titles (tool tip) on each link the same as the anchor text.

    Indexing

    1. Links - by crawling all the links, all the pages of that website should be discovered and indexed.
    2. Sitemap - a sitemap should contain links to important pages within a sitwebe.

    Recommendations

    • Link within your content to other pages within your website this can help Google index all of your pages.
    • Create a sitemap that links to all or, at the very least, the important pages on your website.

    External Links

    1. Authority - if an authority website links to another website, then that other website will be considered valuable to people.
    2. Keywords - if there are keywords within the anchor text of a link then it is normal for Google to consider that the website should be ranked for those keywords.
    3. Age - the longer a link stays live on a website, the more valuable the link is.
    4. Relevance - if a website links to you and another website, both websites, or at least web pages, should be related to the same topic.
    5. Quantity - the more outbound links on a page, the less weight each link will have.
    6. Extension - sites with important extensions such as .edu and .gov are considered to link to more valuable sites.
    7. Freshness - if a site has outbound links and updates frequently, then even the old outbound links are considered to be valuable.
    8. Link count - if a lot of websites link to one website, then that one website is considered useful to people.
    9. Linking websites - links from related websites are better then links from non-related websites.
    10. DMOZ - websites that are in DMOZ and link out to other websites are considered to link to good sites.
    11. Placement - links within a website's content is considered better then links in the footer of a website.

    Recommendations

    • Try to get links from authority websites.
    • Do not participate in link exchanges to build up your link popularity.
    • Try not to purchase all page links.
    • Do not go for links from high PageRank websites; instead go for links from related websites.
    • Links from directories such as DMOZ and Yahoo Directory can not just help with search engine rankings but can also drive traffic.
    • Use the new social websites such as MySpace, digg, del.icio.us, and YouTube to build link popularity.
    • If you purchase text links try to keep them live as long as possible. The older the link, the better.
    • Links from .edu or .gov websites will usually carry more weight and greater benefit.
    • Stay away from websites and blogs that link out to non-related websites or that may seem spammy.

    Code

    1. Size - the size of the code on a website should be streamlined, the less KB it takes up, the better.
    2. Clean - sites that are using web standards and have clean code usually load up faster for users.

    Recommendations

    • Use CSS to make your page size smaller.
    • Use CSS to help improve the cleanliness of your code.

    Website

    1. Website Age - older websites are considered more relevant then newer websites.
    2. Visit Length - in most cases the longer people stay on a website the great the chance that the website is useful to them.
    3. Sandbox - websites in the Google sandbox are usually not as relevant compared to older websites.
    4. 301 redirect - websites should do a 301 redirect from "yourdomain.com" to "www.yourdomain.com" or vice versa, depending on the circumstance.

    Recommendations

    • Try to register your domain name for more then 1 year.
    • Use a 301 permanent redirect so that your website appears as 1 website instead of two separate websites. (www and the non-www are looked as two sites unless your do a redirect from one to the other)
    • Try to grow at a natural rate; growing too fast may put you in the Google sandbox.

    The following are some factors that Google may look at in a negative way:

    1. Visibility - websites with invisible text might be trying to trick Google.
    2. Over optimization - websites that are overly optimized may not be relevant for any search terms.
    3. Keyword stuffing - websites with too many keywords stuffed into the content might be trying to trick Google.
    4. Reciprocal links - websites that link between each other too many times might be trying to cheat.
    5. Cloaking - websites that show Google a different page then what the viewer sees usually get banned.
    6. Anchor text - if all the websites linking to a website have the same anchor text, those links will not be considered natural.
    7. Doorway pages - if tons of 1 page websites filled with keywords are linking to another website, the ranking of that website can be affected negatively.
    8. Frames - it is hard for Google to crawl and index a website with frames, which can make it harder to rank that website.
    9. Flash - it is hard to read/crawl websites made fully in flash which will make it harder to rank Flash websites.
    10. All page links - if tons of websites link to another website on every one of their pages then the text links may have been purchased, which is frowned upon by Google.
    11. 301 redirects - websites that have tons of other websites redirecting into them might be trying to increase their link count to rank high, so Google may penalize these websites.

    These are many of the factors that Google might look at when determining the ranking of a website. Each factor has a different weight and the weights are constantly changing to provide searchers with more relevant results. As Matt Cutts mentioned to Om Malik, Google "used to crawl the web once a month, and now we update everything in two to three days". This shows that it is important to make sure you account for as many of the ranking factors as possible, especially if you want to get ranked. One thing to note is that if you take these factors above and compare them to how a blog is setup, blogs are inline with most of these factors, especially when it comes to some of the biggest factors such as freshness of content.

  • Ctrl+A的秘密

    使用IE浏览器,Ctrl+A看一下下面的图有什么不同?

    选择图片中部出现了StudyEZ的水印。

    原理比较简单,在windows的IE中,区别选中图片其实有些类似于印刷中的“加网”。效果等于在图片上添加一层带有规则网点的蓝色的层。制作这类图片利用选取将带水印的地方填充一种顺序的网点,其他部分填充反顺序的网点。然后对网点图层选择色相叠加,再将透明度调低一点,就可以了。

    这种效果只有在windows操作系统下的IE浏览器中看有效。

  • 我也不想这样

    歌手:王菲
    作词:林夕
    作曲:alex san

    忽然间 毫无缘故
    再多的爱 也不满足
    想你的眉目 想到迷糊
    不知不觉让我中毒

    忽然间 很需要保护
    假如世界 一瞬间结束
    假如你退出 我只是说假如
    不是不明白 太想看清楚
    反而让你的面目变得模糊
    越在乎的人 越小心安抚
    反而连一个吻也留不住

    我也不想这么样 反反复复
    反正最后每个人都孤独
    你的甜蜜变成我的痛苦
    离开你有没有帮助

    我也不想这么样 起起伏伏
    反正每段关系都是孤独
    眼看感情变成一个包袱
    都怪我太渴望得到你的保护

  • 导致google搜索排名下降的因素(上)

    原文地址:A breakdown of Google's ranking factors

    你是否想过为什么有些网站在google搜索排名很高,而有些网站却找都找不到。在过去的五、六年,google调整了分析页面的代码及链接对搜索排行的影响的算法。下面列出了一些会影响在google搜索排行的因素。

    title标签
    1.关键词——title标签中的关键词要能较好的描述页面的主要内容。
    2.长度——title标签中的词应简短扼要。
    建议:
    ·创建title标签中的词的时候要保证简洁唯一。
    ·title标签尽量保持在60-80字之间。
    ·如果你有一个博客,请尽量将博客的title标签设为你每篇博客的标题,而不要设为你博客的名字。
    ·不要在你的title标签里写太多的关键词。
    ·请确保网站的用户可能很看明白你的title标签。

    URL
    1.URL结构——页面中尽量采用静态的URL,而且URL中不要包含多余的字符。
    2.关键字——URL中应该包含尽量完整的与页面内容相关的关键字。
    建议:
    ·把多余的字符(例如:%&$?等)从URL中去掉。
    ·尽量将与页面内容相关的关键词添加到URL中。
    ·尽量使用以.html或.htm为扩展名的页面,或者直接用子目录来结束URL(例如:about.html or /about)。

    Meta标签
    1.关键字——meta中的关键字要和页面的主要内容相匹配。
    2.长度——meta中的描述(description)要简洁扼要。
    3.唯一性——要尽量使每个页面的meta描述唯一。
    建议:
    ·描述(description)应该是一句完整的句子,使别人较容易理解。
    ·描述(description)的长度不要超过120个字符。
    ·不要使所有的页面都使用相同的描述(description),每个页面都应该有不同的描述。大多数情况下,将页面内容中的头一两句话设为描述(description)标签的内容是最好的方法。
    ·尽可能使用一组关键字在meta的描述(description)标签里,而且将他们放在描述的开头部分。

    标题
    1.类型——页面应该使用H1、H2、H3标签。
    2.关键字——标题标签里的关键字要与页面内容密切相关。
    建议:
    ·要使用H1、H2、H3标签。
    ·标题标签内的关键字,要在正文中出现,至少也应该是与内容密切相关的。
    ·标题标签内的文字要简洁扼要。

    内容
    1.关键字——正文内容中应包含关键字。关键字还应有关键字的各种变换及相关词。
    2.突出关键字——关键字在正文中出现的越早,说明该内容与关键字的相关性越好。
    3.字体——正文中的字越大、为粗体或者斜体,说明这些词越重要。
    4.用户——页面内容应该是为访问者创建的。
    5.链接——正文中的链接应该与内容相关。
    6.保持更新——内容越经常更新,对搜索者越有利。
    7.唯一性——唯一和原创的内容会比那些重复性的内容排名好。
    8.质量——网站需要一些有较好质量的内容。
    9.主题——一个页面上的内容应该接近或相似主题的。
    10.关键词密度——一个页面中关键词出现的密度应该与其他相关网站的接近。
    建议:
    ·页面内容要首先考虑到访问者,然后才是搜索引擎。
    ·在内容中要包含关键词。要保证关键词之间的关联性,及关键词和内容的相关性。
    ·页面中添加的链接也要与内容相关。
    ·页面内容要做到每日更新。
    ·不用考虑太多关键词密度的问题,因为如果你的内容是关于“苹果”的,那你在内容中肯定会多次提到“苹果”的。
    ·一直创建相关联的主题,说明你的站点与这些主题相关,关键词也会与该主题相关。
    ·内容应该是唯一的,请不要使用其它网站上也有的内容。
    ·使用粗体和斜体是考虑到访问者阅读的需要,而不是为搜索引擎。

    alt标签
    1.图片——图片都应该有alt标签。
    2.关键字——alt中的关键字应该与图片内容相符。
    3.长度——alt应该简洁扼要。
    建议:
    ·给所有的图片都填加alt,可以很大的提高你的网站的易用性。
    ·alt标签里的描述图片语句长短可以根据需求而定。
    ·如果你的图片看起来很象可点击的链接,那就要可点击。
    ·不要用关键字来填充alt标签。
    ·alt标签的长度没有限制,但是通常来说越短越好。

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