Recently we received some questions about how Google uses (or more accurately, doesn't use) the "keywords" meta tag in ranking web search results. Suppose you have two website owners, Alice and Bob. Alice runs a company called AliceCo and Bob runs BobCo. One day while looking at Bob's site, Alice notices that Bob has copied some of the words that she uses in her "keywords" meta tag. Even more interesting, Bob has added the words "AliceCo" to his "keywords" meta tag. Should Alice be concerned?
At least for Google's web search results currently (September 2009), the answer is no. Google doesn't use the "keywords" meta tag in our web search ranking. This video explains more, or see the questions below.
Q: Does Google ever use the "keywords" meta tag in its web search ranking?
A: In a word, no. Google does sell a Google Search Appliance, and that product has the ability to match meta tags, which could include the keywords meta tag. But that's an enterprise search appliance that is completely separate from our main web search. Our web search (the well-known search at Google.com that hundreds of millions of people use each day) disregards keyword metatags completely. They simply don't have any effect in our search ranking at present.
Q: Why doesn't Google use the keywords meta tag?
A: About a decade ago, search engines judged pages only on the content of web pages, not any so-called "off-page" factors such as the links pointing to a web page. In those days, keyword meta tags quickly became an area where someone could stuff often-irrelevant keywords without typical visitors ever seeing those keywords. Because the keywords meta tag was so often abused, many years ago Google began disregarding the keywords meta tag.
Q: Does this mean that Google ignores all meta tags?
A: No, Google does support several other meta tags. This meta tags page documents more info on several meta tags that we do use. For example, we do sometimes use the "description" meta tag as the text for our search results snippets, as this screenshot shows:
Even though we sometimes use the description meta tag for the snippets we show, we still don't use the description meta tag in our ranking.
Q: Does this mean that Google will always ignore the keywords meta tag?
A: It's possible that Google could use this information in the future, but it's unlikely. Google has ignored the keywords meta tag for years and currently we see no need to change that policy.
Posted by Matt Cutts, Search Quality Team
翻譯：
Google不會在網(wǎng)絡(luò)排名中使用關(guān)鍵字元標(biāo)記
最近，我們收到了一些關(guān)于Google如何使用（或更準(zhǔn)確地說，不使用）“關(guān)鍵字”標(biāo)簽對網(wǎng)絡(luò)搜索結(jié)果進(jìn)行排名的問題。假設(shè)您有兩個網(wǎng)站所有者，Alice和Bob。Alice經(jīng)營一家名為AliceCo的公司，鮑勃經(jīng)營著BobCo。有一天，在查看Bob的網(wǎng)站時，Alice注意到Bob已經(jīng)復(fù)制了她在“關(guān)鍵字”標(biāo)簽中使用的一些單詞。更有趣的是，Bob在他的“關(guān)鍵字”標(biāo)簽中添加了“AliceCo”字樣。愛麗絲應(yīng)該擔(dān)心嗎？
至少目前（2009年9月）谷歌的網(wǎng)絡(luò)搜索結(jié)果，答案是否定的。Google不會在我們的網(wǎng)絡(luò)搜索排名中使用“關(guān)鍵字”標(biāo)簽。此視頻詳細(xì)說明了解或查看以下問題。
（視頻請自行搜索）
問：Google是否曾在其網(wǎng)絡(luò)搜索排名中使用“關(guān)鍵字”標(biāo)簽？
答：總之，沒有。Google確實銷售Google Search Appliance，該產(chǎn)品可以匹配標(biāo)簽，其中可能包含關(guān)鍵字標(biāo)簽。但這是一個與我們的主要網(wǎng)絡(luò)搜索完全分開的企業(yè)搜索設(shè)備。我們的網(wǎng)絡(luò)搜索（Google.com上每天有數(shù)億人使用的知名搜索）完全忽略了關(guān)鍵字標(biāo)簽。它們對我們目前的搜索排名沒有任何影響。
問：為什么Google不使用關(guān)鍵字標(biāo)簽？
答：大約十年前，搜索引擎僅根據(jù)網(wǎng)頁內(nèi)容判斷頁面，而不是任何所謂的“離頁”因素，例如指向網(wǎng)頁的鏈接。在那些日子里，關(guān)鍵字標(biāo)簽迅速成為一個區(qū)域，在這個區(qū)域中，有些人可以填充經(jīng)常無關(guān)的關(guān)鍵字，而沒有典型的訪 由于關(guān)鍵字標(biāo)簽經(jīng)常被濫用，許多年前谷歌開始忽視關(guān)鍵字標(biāo)簽。
問：這是否意味著Google會忽略所有標(biāo)簽？
答：不，Google確實支持其他幾個標(biāo)簽。此標(biāo)簽頁面記錄了我們使用的多個標(biāo)簽的更多信息。例如，我們有時會使用“description”標(biāo)簽作為搜索結(jié)果摘要的文本，盡管我們有時會對我們展示的代碼段使用描述標(biāo)簽，但我們?nèi)匀徊粫谂琶惺褂妹枋鰳?biāo)簽。
問：這是否意味著Google將始終忽略關(guān)鍵字標(biāo)簽？
答：谷歌未來可能會使用這些信息，但這種可能性不大。Google多年來一直忽略關(guān)鍵字標(biāo)簽，目前我們認(rèn)為無需更改該政策。
發(fā)布者：Matt Cutts，搜索質(zhì)量小組
以上文章確定了，在谷歌搜索中，您不需要擔(dān)心有沒有寫關(guān)鍵詞標(biāo)簽，對網(wǎng)站seo搜索結(jié)果沒有任何的影響。
在百度中，關(guān)鍵詞對seo有沒有幫助呢？
我們來看看另一位大神ZAC是怎么回答的。
原文：如果你說的是HTML代碼中的關(guān)鍵詞標(biāo)簽，那么不需要寫，現(xiàn)在搜索引擎都忽略keyword標(biāo)簽。有的網(wǎng)站寫了keyword標(biāo)簽，但經(jīng)常堆積關(guān)鍵詞，可能反倒有負(fù)面作用。所以我個人建議刪除關(guān)鍵詞標(biāo)簽。
OK，現(xiàn)在答案清晰了吧，谷歌官方跟ZAC都已經(jīng)說了，關(guān)鍵詞對于網(wǎng)站優(yōu)化沒有任何的幫助，甚至?xí)鸬截?fù)面作用，建議不要在頁面中填寫關(guān)鍵詞了，甚至可以刪除網(wǎng)頁里面的關(guān)鍵詞標(biāo)簽！
以上是風(fēng)享互聯(lián)對于網(wǎng)站優(yōu)化需不需要寫關(guān)鍵詞的說明，希望對大家的網(wǎng)站優(yōu)化有幫助，如有更多問題，請及時聯(lián)系我們！
