如何在网站上识别和补救重复的内容问题

It's easy to be fooled into thinking SEO is just about link building. There are so many posts covering the latest developments on what links are good or bad, that we sometimes forget about the huge gains we can make by simply fixing problems with our own site.

One of the biggest culprits for lost traffic and rankings is duplicate content. Luckily, you havecontrol over your own site, so you have the power to fix it.

什么是重复的内容？

当搜索引擎索引的页面有多个版本的页面时，存在重复的内容。如果有多个版本的页面索引，则搜索引擎很难确定有关相关搜索查询的页面。

搜索引擎旨在为用户提供最佳体验，这意味着他们很少会显示重复的内容。相反，他们将被迫选择他们认为最适合该查询的版本。

重复内容的原因

引起重复内容的三个最大罪犯是：

1）URL参数

URLcan often contain additional parameters because of how they are being tracked (marketing campaign IDs, analytics IDs), or the CMS a website is using adds its own custom parameters.

例如，以下URL都可能导致同一页面：

http://www.example.com/page1

http://www.example.com/page1?source=organic

http://www.example.com/page1?campaignid=3532

2) Printer friendly pages

Often a web page will have an option to produce a printer friendly version of that page. This can often lead to duplicate content issues. For example, the following URLs would lead to the same page.

http://www.example.com/page1

http://www.example.com/printer/page1

3）会话ID

网站可能经常想跟踪用户的会话across their website. For example, sites can offer personalized features based upon who that user is and their past interactions with the site, or an ecommerce store may remember what that person added to their shopping cart on their last visit.

Session ids get appended to the URL and this causes duplicate versions of a page to exist. For example, the following URLs would lead to the same page.

http://www.example.com/page1

http://www.example.com/page1?sessionid=12455

重复的内容问题

重复内容引起的最大问题是：

• 搜索引擎不知道他们应该索引哪个版本的页面
• Search engines don’t know what page the link authority should be assigned to, or if it should be divided across multiple versions.
• 搜索引擎不知道相关搜索查询的页面哪个版本。

这可能导致网页失去排名和有机流量。

Finding Duplicate Content

您可以使用两种工具来为您的网站找到重复的内容问题：Google网站管理员工具和尖叫青蛙。

1）Google网站管理员工具

使用Google网站管理工具，您可以轻松地找到具有重复标题和元描述的页面。您只需单击“搜索外观”下的“ HTML改进”即可。

Clicking on one of these links will show you what pages have duplicate meta descriptions and page titles.

2) Screaming Frog

您可以下载尖叫的青蛙网络爬网并使用它免费爬行500页。此应用程序使您可以做很多不同的事情，包括查找重复的内容问题。

Page Titles/Meta Descriptions

您可以通过单击选项卡“页面标题”或“元描述”并过滤“重复”来找到重复的页面标题。

URL

You can also find pages that have multiple URL versions by simply clicking on the “URL” tab and sorting by “Duplicate."

For a complete guide on all the different things you can do with Screaming Frog,从SeerInteractive查看此帖子。

修复重复的内容

重复的内容是一个可能影响您的自然流量和Web排名的问题，但您可以轻松解决。解决重复内容问题的三种最快方法是：

1）规范标签

Using the canonical tag you can tell search engines what version of a page you want to return for relevant search queries. The canonical tag is found in the header of a web page.

当您想拥有多个版本的页面可供用户使用时，规范标签是最佳方法。如果您使用的是HubSpot COS，则将自动处理，因此不需要手动劳动。

2) 301 Redirect

301重定向将将所有传统页面重定向到新URL。它告诉Google将所有链接权限从这些页面传递到新的URL，并将该URL排名相关的搜索查询。

The 301 redirect is the best option when you don’t have any need for multiple versions of a page to be available.

3）元标记

您可以使用元标记告诉搜索引擎不要索引特定页面。

noindex，nofollow”>

当您希望该页面可供用户使用但不能索引时，Meta标签最有效，例如条款和条件。

重复的内容对于网站来说是一个真正的问题，但是可以使用上述建议可以轻松解决的内容。If you want to learn more about duplicate content,watch this video seriesfrom the SEO experts at Dejan SEO on how you can fix it for your site.