blocks|key|1507513|text|我总是将非www链接重定向到www，并将它们称为www.mysite；想想各种论坛和即时消息应用程序，它们只有在以www开头时才能正确地转换链接。。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1507514|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I always make the non-www one redirect to www and refer to them as www.mysite; Think about various forums and instant messenging apps that correctly convert links only when they begin with www. .

blocks|key|1293010|text|不要使用WWW。这是一个不必要的绕口令，也是图形设计师的痛处。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1293011|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Don't use WWW. It's an unnecessary tongue-twister, and a pain in the arse for graphic designers.

blocks|key|1293089|text|我会重定向到没有www。在Apache+2.x中：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1293090|RewriteEngine+On
RewriteBase+/
RewriteCond+%25{HTTP_HOST}+%5Ewww\.yourdomain\.com$
RewriteRule+(.*)+http://yourdomain.com/$1+[R=Permanent]+|code-block|syntax|javascript|1293091|我认为www是没有意义的；我们都知道我们是在万维网上。将子域用于负载均衡或特定于设备的站点(例如，移动设备的m.google.com，尽管现在有.mobi顶级域)会更好。|1293092|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I'd redirect to without www. In Apache 2.x:

<pre><code>RewriteEngine On
RewriteBase /
RewriteCond %{HTTP_HOST} ^www\.yourdomain\.com$
RewriteRule (.*) http://yourdomain.com/$1 [R=Permanent] 
</code></pre>

I think the www is meaningless; we all know we're on the world wide web. It would be much better to use subdomains for load balancing or for device specific sites (like m.google.com for mobiles, for example, even though there is a .mobi top level domain now).

blocks|key|1293167|text|你希望你的url令人难忘，你希望Google等人为排名等注册相同的url。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1293168|最佳实践似乎是处理www，但始终使用HTTP将其重定向到非www变体。这样，搜索引擎就知道将这两种变体的链接排序为同一站点。|1293169|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

You want your url to be memorable, and you want Google et al to register the same url for rankings and the like.

Best practice appears to be to handle the www, but always HTTP redirect it to a non-www variant. That way the search engines know to rank links to both variants as the same site.

blocks|key|1293215|text|你会有其他的子域吗？如果是这样的话，这可能会让我觉得使用www更有意义，因为一些地方可能有不同的子域用于其他目的，比如商店或国际化子域。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1293216|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Would you have other subdomains? If so, that may make using the www make more sense to my mind as some places may have various subdomains used for other purposes like a store or internationalization subdomains.

blocks|key|1507821|text|我通常使用www.sitename.com，因为它明确地表明它是您站点的主要部分。Testing.sitename.com正在测试。House.sitename.com是我的家用电脑。我喜欢明确，但我不介意网站不使用www。我不是最纯洁的。:)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1507822|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I normally go with www.sitename.com because it is explicit that it is the main part of your site. Testing.sitename.com is testing. House.sitename.com is my home PC. I like be explicit however I do not mind when sites do not use www. I am not a purest. :)

blocks|key|1293316|text|这个问题的一个方面涉及CDN和一些web主机(例如，Google站点)。此类主机要求您为指向主机服务器的站点名称添加CNAME记录。但是，由于DNS的设计方式，CNAME记录不能与同名的其他记录共存，例如NS或SOA记录。因此，您不能为您的example.com名称添加CNAME，而必须为子域添加CNAME。当然，人们通常选择"www“作为他们的子域。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1293317|尽管有这个技术限制，我还是倾向于在可能的情况下省略我网站上的www。|1293318|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

One aspect of this question deals with CDNs and some web hosts (eg. Google Sites). Such hosts require that you add a CNAME record for your site name that points to the host servers. However, due to the way DNS is designed, CNAME records cannot coexist with other records for the same name, such as NS or SOA records. So, you cannot add a CNAME for your example.com name, and must instead add the CNAME for a subdomain. Of course people normally choose "www" for their subdomain.

Despite this technical limitation, I prefer to omit the www on my sites where possible.

blocks|key|1293346|text|www被用作主域中网站的标准子域名、子文件夹。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1293347|http://no-www.org/正试图将其弃用。|offset|length|1293348|虽然http://www.w3.org/包括www。|1293349|这两个网站都值得一看。|1293350|目前，它似乎成了一个品味问题和宗教问题，而不是一个标准。无论您选择什么，请确保您注册或重定向从www为Control%2Benter等快捷方式复制到www。|1293351|entityMap|0|LINK|mutability|MUTABLE|url|http://no-www.org/|1|http://www.w3.org/^0|0|0|I|0|0|2|I|1|0|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|W|8|@]|9|@$D|X|E|Y|1|Z]]|A|$]]|$1|F|3|G|5|6|7|10|8|@]|9|@$D|11|E|12|1|13]]|A|$]]|$1|H|3|I|5|6|7|14|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|15|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|16|8|@]|9|@]|A|$]]]|M|$N|$5|O|P|Q|A|$R|S]]|T|$5|O|P|Q|A|$R|U]]]]

www is used as a standard sub domain, subfolder for websites in the main domain.

<a href="http://no-www.org/" rel="noreferrer"><a href="http://no-www.org/" rel="noreferrer">http://no-www.org/</a></a> are trying to get it deprecated.

Although <a href="http://www.w3.org/" rel="noreferrer"><a href="http://www.w3.org/" rel="noreferrer">http://www.w3.org/</a></a> include www.

Worth checking both those sites.

It seems to be become a matter of taste and a religion issue at the moment rather than a standard. Whatever you choose, make sure you register or redirect from www as Control+enter etc. shortcuts copy in www.

blocks|key|1507964|text|无论您使用什么，坚持使用一个，否则您将不得不为每个域创建两组cookie，以使您的会话/cookie正常工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1507965|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Whatever you use, stick to one or else you'll have to make 2 sets of cookies for each domain to make your sessions/cookies work properly.

From technical perspective the only issue is traffic and incoming links (one of them should redirect to another). 

Now I need to choose which one should be primary. Some sites have www (google, microsoft, ruby-lang) and some without www (stackoverflow, github). Seems to me the newer do not use WWW.

What to choose?

Please with some explanations.

UPDATE: This is programming related question. Actually site is for programmers, so I expect to see what techy people think.

UPDATE: Site without WWW is clear winner. Thank you guys!

WWW or not WWW, what to choose as primary site name?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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从技术角度来看，唯一的问题是流量和传入链接(其中一个应该重定向到另一个)。现在我需要选择哪个应该是主要的。有些网站有www (谷歌、微软、ruby-lang)，有些没有www (stackoverflow、github)。对我来说，新手似乎不使用WWW。选择什么？请给我一些解释。更新:这是与编程相关的问题。实际上网站是...

问WWW或非WWW，选择什么作为主站点名？
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