Friday, August 16, 2013

Top 30 SEO Link Authority Websites Worldwide

At the heart of SEO is the fact that search engines use the quantity, context and quality of links pointing to a web page when ranking it for a keyword. This helps them determine how important the site is and what it's about.

Since links are so important, it's interesting to analyse which websites have the most links. It's particularly interesting to compare link authority data with our perceptions about which sites are more popular, important on the web.

Below is a table ranking the global top 30 websites according to the number of inbound links they have - particularly those with the greatest number of separate domains linking to them.

Theoretically these should have the highest basic SEO authority in the world. On-page content, social media signals and many other factors also affect rankings. But as the world's leading authority sites it's reasonable to expect that the sites at the top of the list should be able to rank in Google for just about anything.

Did you know that Twitter - not Google - has the highest link authority site on the web?

Some of this data might surprise you...



Domain

Linking domains

Overall Links

Description

Twitter.com

1,350,000

116,890,000

Microblogging platform and the world's second most popular social network. Many sites link to their Twitter feed

Google.com

872,000

47,620,000

Google's main homepage

Yahoo.com

452,000

23,280,000

Was the biggest search engine before Google's dominance. Now merging with Bing

Baidu.com

308,000

16,750,000

China's top search engine - China has the world's largest population (more than 4 times more people than USA)

Wordpress.com

211,000

14,340,000

The most popular blogging platform

Blogger.com

210,000

7,280,000

Google's blogging platform

Amazon.com

207,000

5,430,000

Online retailer that began life selling books

Youtube.com

204,000

5,960,000

The most popular video-sharing social network - owned by Google

Bing.com

150,000

3,190,000

Microsoft's search engine and rival to Google

Adobe.com

132,000

4,420,000

Provides Flash for online video and reader software for PDF documents - both are popular and frequently linked to.

Taobao.com

108,000

3,140,000

A leading consumer-to-consumer marketplace

Microsoft.com

102,000

1,679,000

Microsoft global homepage

sina.com.cn

97,081

3,580,000

China's leading web analytics provider

Linkedin.com

88,349

2,720,000

The leading professional networking website

Sohu.com

87,309

3,270,000

Chinese search engine

CNN.com

85,057

2,580,000

The leading global news provider (US-based)

Ebay.com

83,948

2,130,000

The world's most popular auction site (peer-to-peer)

PayPal.com

83,886

2,760,000

The world's most popular peer-to-peer payment system. Websites using PayPal often link to the site

163.com

81,974

3,340,000

Leading Chinese web portal

Apple.com

76,271

1,220,000

Apple homepage

Facebook.com

75,988

2,040,000

Homepage of one of the world's most popular social networking sites

Wikipedia.org

74,819

1,700,000

User-edited (wiki) encyclopedia

Yahoo.co.jp

74,434

2,750,000

Yahoo's Japan homepage

Tumblr.com

63,302

4,390,000

A leading blogging platform

Qq.com

62,995

2,280,000

China's biggest web portal

Google.co.jp

62,483

3,300,000

Google's Japan homepage

Msn.com

58,029

1,520,000

Microsoft Network homepage - used to be the default homepage for Windows computers

Google.de

53,443

1,120,000

Google Germany

BBC.co.uk

46,182

1,100,000

Leading provider of news, entertainment and information - ad free - to the UK and the world. Funded by UK TV owners

Imdb.com

45,887

1,320,000

Movie database


Domains are listed in strict order of authority - with the highest authority sites at the top. Authority is based primarily on the number of linking domains. 10 links from 10 domains typically represent more SEO value than 10 links all from the same domain.

Perhaps most interesting of all is that based on this data Twitter is the most authoritative site on the web. Perhaps this is in part because many businesses and individuals link to their Twitter feed from their website.

Of course SEO is about much more than just links and domain authority - but link-based metrics are among the most important SEO factors and they do tend to correlate well with rankings. Based on the enormity of Twitter's link authority alone, pages on the Twitter.com domain might be expected to rank far better in Google than they actually do, for a wide range of terms. Do tweets simply not represent enough content to rank well? That seems likely and might explain why Wikipedia tends to rank far better than Twitter. (Could Google actually be suppressing Twitter URLs? I've seen other anecdotal evidence that this may indeed be the case and it may be worthy of further research).


Yahoo!
Yahoo! comes third - way ahead of Bing and Facebook - which is also something of a surprise at first. But it's a much older domain. It's been a major part of the web for much longer and at for quite some time was the most popular site on the web.

Baidu

Baidu coming fourth in the link popularity chart is a reminder that China is the next global superpower - soon to overtake the USA to become the world's richest and most economically active nation. If China is emerging as the most important country in the world then Baidu is also becoming the most important search engine in a global context. It's the fourth highest authority in the world according to this data, and I expect it to rise to the top of the list by 2015.

6 Ways Google Robs SEO to Pay PPC

If marketing budgets were diverted from SEO to PPC campaigns then Google would make more money - so could that be a secret objective of theirs? Some disturbing signs hint that it may be - and that Google might be using shady tactics to harm SEO campaigns - and ultimately the whole SEO industry - in order to make more money from Adwords.

Google’s advertising business is showing signs of slowing as CPCs decline and market share is lost. Meanwhile, Facebook continues to forge ever-closer ties with Bing - and the combined power and reach of those two online giants poses a serious and growing threat to Google’s dominance of the search market.

That's the motive explained. Here's the means by which Google appears to be assaulting the SEO industry - and the opportunities it may be exploiting in order to do so.

1. Not Provided Keywords

The SEO industry has seen a dramatic rise in traffic from "Not Provided" keywords - a trend that shows no signs of slowing as Google encrypts ever more search queries. If you work in SEO then you'll find this chart all too familiar.



Google claims they encrypt keywords to protect user privacy - but that's just nonsense because they still provide full keyword data via Google Webmaster Tools! The only real difference is that you can't use that data to measure revenue from SEO. That's a very important difference to Google - because they don't make a penny from SEO, only from their paid ads.

Marketers aren't asking for user data - just clean search query data, the same data seen in Webmaster Tools, just linked to transactions and revenue. So what's the problem? Clearly there is no genuine problem - except that Google may not want people to measure the revenue generated by SEO - as opposed to Google Adwords campaigns.

To make matters worse, search share from tablets and smartphones is growing - and Google compells new users of its Android mobile operating system to log in or register. After which, of course, searches are encrypted and hidden from Google Analytics. The next version of Google's web browser, Chrome 25, will encrypt searches by default. Google may be using its growing strength in the mobile and tablet markets to encrypt even more searches.

2. Fewer organic search results

There have been signs that Google also intends to literally reduce the number of organic search results - so that the balance of visible results would shift in favour of Adwords results. This issue has been covered extensively - notably in this article on SEOmoz.

3. Withdrawing Google data from SEO tools

Google has been systematically investigating providers of SEO ranking software - and forcing them to either stop using Google Adwords data or stop tracking rankings. Some, like Raven Tools, were forced to abandon their rank-tracking facilities - and just offer Adwords data instead. So they have changed from SEO tools to Google Adwords tools. Marketers need both sets of information together in order to track SEO campaigns effectively, but Google doesn't seem to want us to track SEO campaigns effectively. only PPC campaigns. This seemingly sinister activity by Google could put some software companies out of business. Not nice.

4. Larger paid results

Adwords ad extensions and experiments are increasingly crowding out the organic results below them. From sitelinks to phone numbers, map links, images, product lists, star ratings and even lead generation forms, these extensions take up more and more space. For some competitive searches only two or three organic results can be seen below the enormous, screen-hogging Adwords ads.


5. Google Shopping has gone - to Adwords

Just to squeeze a little more activity through Adwords, after many years of offering Google Shopping listings for free the platform was shut down - at least for free/organic search results. Effectively Google Shopping has become an extension of Adwords. Anybody sensing desperation here, on the part of Google? It gets worse.

6. More eye-catching Ads

Google further emphasises its bias towards Adwords results by making paid results far more eye-catching than organic results - and not to improve the overall user experience. Just the Adwords user experience.

  • Google Shopping images are only shown in Adwords results
  • Star ratings are only shown in Adwords


Google is perfectly capable of displaying product images and star ratings in organic results - indeed, as we have seen, they used to provide free product image ads through Google Shopping, as a separate platform to Adwords. I used to love that about Google. But now those eye-catching, click-through-rate-boosting images are reserved for Google's paying customers. Star ratings have only ever been available in paid ads. That only helps Adwords advertisers - not customers and not Google's users (unless they want to click on a paid ad).


These changes may help Google protect its enormous revenues from paid search - and Google may appear to be in control here. But make no mistake: the brands are in control of the Adwords revenue and they can take it away.

More important, though, is the fact that we the people are in charge of the internet. We decide what succeeds and what fails by making our choice. In the long-term, in my view, these changes will alienate brands and customers alike, leaving Google isolated.

The original Google concept was to give people the best possible search results. That's what people want, not the highest bidder, not intrusive ads. There's the inevitable tension between commercial interests and people. But if history reveals one thing it is that, in the end, the people always win.

Search results dominated by expensive, eye-catching paid results from the biggest brands may crowd out small sellers and prevent new businesses from entering the market. That will only harm the market.

Google is doing things that are bad for most businesses who can't compete with brands. It is doing things that are bad for users, which can only lead to a decline in Google's popularity.

Google knows that competitors like Microsoft, Facebook and Apple are poised to exploit Google's weaknesses over the next few years. Google may look unbeatable right now - but if there's one thing that characterises technology, business and the web, it is constant change.

I smell change in the wind. Change for Google. Change for the search market. And change for the web.

Monday, May 20, 2013

URL Optimization: 5 Best Practices for SEO


URL Optimization: 5 Best Practices for SEO


The following screenshot is a sample URL with ideal anatomy for site SEO.
A Sample of an SEO-Friendly URL
A Sample of an SEO-Friendly URL
When you talk about SEO in terms of content on a web page it is most often concerning the keywords. The URL of a page is an integral part of SEO and must also contain keywords that are consistent with the other content on the website.
The following are some things that you need to consider when structuring your URLs for SEO:

1. Words Used in URLs:

As shown in the diagram above, your URL consists of some important elements that require the presence of keywords to gain optimum SEO benefits for your site. Within the different elements of a URL, the domain, sub-domain, folder and page elements can contain keywords. It is not mandatory to use keywords but if you can name folders and pages with keywords that appear in the content of that particular page, search engine crawlers will easily index and return the pages for the appropriate keywords.
Along with keywords, there are other factors that need to be considered for the words in the URL structure:
Descriptive URLs: If you do not use keywords, use words that efficiently describe the contents of the page. An obvious URL scores high in usability and often in SEO.
Shorter URL Length: The fewer words the better. A short URL is quicker to type and read. Avoid using words such as a, our, for, the, etc. Also, the fewer the words the more value each word receives from a search engine spider.
Important Keywords at the Beginning: Put the most important words in the beginning of the URL as search engine spiders do not give much significance to words toward the end of a longer URL.
No Repetition: Do not repeat words, for example, a section and sub-section name in the URL.
Rather than this:
www.domain.com/services/services.php
Name the sub-section differently, like this:
www.domain.com/services/web-services.php
Not Necessarily Identical to Page Title: In the case of a blog page, the URL is not required to be exactly the same as the page title or the title of the blog.
Unnecessary URL Parameters: Parameters such as ?, & and % must be avoided in URLs. Read our post on A Guide to Clean URLs for SEO and Usability to learn more.
Long Keywords: For pages with long keywords, avoid using category and sub-category names in the URLs.
Keyword Stuffing: Do not stuff your URL with keywords.
Capital Letters: Do not use CAPITALS in words in URLs.

2.   Dynamic Vs. Static URLs:

A dynamic URL is one that is created by a CMS or web server. The page element as a whole does not exist until the browser requests the URL. Once the URL is requested, the CMS dynamically generates the URL with lots of parameters and unwanted characters, making the URL non-SEO-friendly and causing it to look something like the example below:
http://www.domain.com/gp/detail.html/602-9912342-3046240?_encoding=UTF8&frombrowse=1&asin=B000FN0KWA
With advanced an CMS, such as WordPress, one can change the permalink structure and include the page name/title in the URL structure, as shown below:
Permalink Feature in WordPress
Permalink Feature in WordPress
Using a static URL that is human-edited while keeping in mind all the factors discussed above will assist both people and search engine crawlers in deciphering your URLs easily.

3.   Hyphens Vs. Underscores:

As discussed in our earlier post titled Underscores in URLs: Why are they Not Recommended? Google considers hyphens to be word separators but have not yet programmed their search bots to consider underscores as word separators. It does not make a difference if you use underscores or hyphens for search engines such as Bing, however, we recommend you use hyphens in your URL structure or no word separators at all. Underscores in URLs are not SEO-friendly nor are they user-friendly. If you already have URLs that contain underscores it is better to leave them untouched rather than changing them, as these pages may have already been indexed by search engines and have an established link structure. If you use 301 redirects to redirect a URL with underscores to hyphenated versions of the same URL you will lose some link juice, which is not ideal. Watch for our upcoming blog on link juice for more information on that.

4.   Use of Sub-domains:

Use sub-domains for completely different parts of your website, such as a blog page that receives user-generated content on a regular basis. You must remember that sub-domains have the potential to be considered a separate entity and not a part of your website, hence, it is not advised to use multiple sub-domains. In the case of a blog, you can build an extensive interlinking structure with the main page and not lose link juice. Be careful of using other sub-domains, such as category pages on an e-commerce site, for example, woman.domain.com/blue-dresses.html. Although the URL is reader friendly, search engines will not consider it to be a part of the main domain, thus, your website’s link juice is segregated.

5.   Duplicate URLs:

Make sure to avoid duplicate URLs. When URLs are dynamically generated, sometimes duplicate URLs are created for the same content. Your website may have www and non-www versions of your URL pointing to the same content, thus also creating a duplicate content problem. Often times duplicate content is created unintentionally by session ids, affiliate codes and sorting options (for example, sort by price and sort by color options on e-commerce sites) in URLs. There are two ways to cope with the duplicate URLs. One is to choose the best URL and add a rel canonical tag to the other duplicate URLs. The other is to add 301 redirects, most often in the case of redirecting multiple home page URLs to one preferred version. This causes less confusion and also prevents your site from duplicate content penalties.
URL cleaning and optimization for easy indexing and navigation by search engines is an important part of your on-site SEO. It is worth spending time on your URLs for both SEO and usability purposes.
Source: woorank.com

Saturday, May 18, 2013

Underscores in URLs: Why are they Not Recommended?


Search engines treat dashes and underscores differently from one another. Google has clearly stated that when it comes to URL structure, using hyphens rather than underscores makes it much easier for them to identify what the page is about. Take a look at an excerpt below from the Google support blog on URL structure.
Google Claiming that Hyphens are Preferable to Underscores in URLs
Google Claiming that Hyphens are Preferable to Underscores in URLs
Senior Google Engineer Matt Cutts clearly explains in this Google Webmaster Help Video about underscores in URLs that hyphens are used as word separators while underscores do not specify any function. Search engine bots have a different way of interpreting your punctuation when crawling and indexing sites.  Search engines have not been programmed to interpret underscores the way that we do. This difference in interpretation is not only limited to URLs but also applies to image alt tags.
For example, if your URL includes tips_for_instant_weight_loss  (with underscores) search engines read it astipsforinstantweightloss. Obviously someone typing in these words would include spaces.  Conversely, when you use hyphens to link a keyword in your URL; tips-for-instant-weight-loss, search engines can return the words in various combinations, as follows:
  • Tips for instant weight loss
  • Tips for weight loss
  • Instant weight loss
  • Weight loss
  • Tips
  • Weight
  • Loss
  • Instant
  • Tips-for-instant-weight-loss
  • Tipsforinstantweightloss
So, the probability of your website being shown in the SERPs is lower when underscores are used as opposed to when hyphens are used. If you are not bothered about optimizing your website for search, here are some reasons why hyphens in URLs are also preferable for people.
If your URL contains underscores the link will look similar to this:
http://www.tips_for_instant_weight_loss.com (http://www.tips_for_instant_weight_loss.com)
Whereas if your URL contains hyphens, the link will look similar to this:
http://www.tips-for-instant-weight-loss.com (http://www.tips-for-instant-weight-loss.com)
A user may mistake the underscores for spaces, as the underlining in the link hides the underscores. On the other hand, hyphens are clearly visible, so users are more likely to remember to type them. So, the use of underscores in URLs impacts usability as well as SEO.
Google will still crawl and index URLs that already contain underscores and it is not necessarily advisable to change your URLs if they currently contain underscores. As long as you have other ranking factors working well, you should have no problem ranking high in the SERPs.  For instance, look at the screenshot below of a Wikipedia URL for the term cloud computing. It uses underscores, and yet Wikipedia takes the top spot in search results for almost all keywords.
Wikipedia URLs Use Underscores
Wikipedia URLs Use Underscores
As seen in the Matt Cutts video mentioned above, Google says that they will begin working out a way for search engines to interpret underscores in URLs as separators once they have finished modifying the other high-impact search ranking signals they are currently working on. The general advice remains, however, that if you have yet to choose a domain name, do not use one with underscores, and if you are building inner pages on your website, make sure your URL structures contain hyphens rather than underscores.
If you already have a website URL that uses underscores and its SERP rankings are not improving, you can use 301 permanent redirects to a URL with hyphens. For example, if your old URL ishttp://www.yoursite.com/old_page.html 301 redirect it to http://www.yoursite.com/new-page.html. You do not need to do this, however, if your website fairs well in the SERPs, as 301 redirects can reduce a bit of the link juice that you obtain by building links to your site.

Souce: woorank.com

Friday, May 17, 2013

Robots.Txt: A Beginners Guide


Robots.Txt: A Beginners Guide

Robots.txt is:

A simple file that contains components used to specify the pages on a website that must not be crawled (or in some cases must be crawled) by search engine bots. This file should be placed in the root directory of your site. The standard for this file was developed in 1994 and is known as the Robots Exclusion Standard or Robots Exclusion Protocol.
Some common misconceptions about robots.txt:
  • It stops content from being indexed and shown in search results.
If you list a certain page or file under a robots.txt file but the URL to the page is found in external resources, search engine bots may still crawl and index this external URL and show the page in search results. Also, not all robots follow the instructions given in robots.txt files, so some bots may crawl and index pages mentioned under a robots.txt file anyway.  If you want an extra indexing block, a robots Meta tag with a ‘noindex’ value in the content attribute will serve as such when used on these specific web pages, as shown below:
 <meta name=“robots” content=“noindex”>
Read more about this here.
  • It protects private content.
If you have private or confidential content on a site that you would like to block from the bots, please do not only depend on robots.txt. It is advisable to use password protection for such files, or not to publish them online at all.
  • It guarantees no duplicate content indexing.
As robots.txt does not guarantee that a page will not be indexed, it is unsafe to use it to block duplicate content on your site. If you do use robots.txt to block duplicate content make sure you also adopt other foolproof methods, such as a rel=canonical tag.
  • It guarantees the blocking of all robots.
Unlike Google bots, not all bots are legitimate and thus may not follow the robots.txt file instructions to block a particular file from being indexed. The only way to block these unwanted or malicious bots is by blocking their access to your web server through server configuration or with a network firewall, assuming the bot operates from a single IP address.

Uses for Robots.txt:

In some cases the use of robots.txt may seem ineffective, as pointed out in the above section. This file is there for a reason, however, and that is its importance for on-page SEO.
The following are some of the practical ways to use robots.txt:
  • To discourage crawlers from visiting private folders.
  • To keep the robots from crawling less noteworthy content on a website. This gives them more time to crawl the important content that is intended to be shown in search results.
  • To allow only specific bots access to crawl your site. This saves bandwidth.
  • Search bots request robots.txt files by default. If they do not find one they will report a 404 error, which you will find in the log files. To avoid this you must at least use a default robots.txt, i.e. a blank robots.txt file.
  • To provide bots with the location of your Sitemap.  To do this, enter a directive in your robots.txt that includes the location of your Sitemap:
      Sitemap: http://yoursite.com/sitemap-location.xml 
You can add this anywhere in the robots.txt file because the directive is independent of the user-agent line.  All you have to do is specify the location of your Sitemap in the sitemap-location.xml part of the URL. If you have multiple Sitemaps you can also specify the location of your Sitemap index file.  Learn more about sitemaps in our blog on XML Sitemaps.

Examples of Robots.txt Files:

There are two major elements in a robots.txt file: User-agent and Disallow.
User-agent: The user-agent is most often represented with a wildcard (*) which is an asterisk sign that signifies that the blocking instructions are for all bots. If you want certain bots to be blocked or allowed on certain pages, you can specify the bot name under the user-agent directive.
Disallow: When disallow has nothing specified it means that the bots can crawl all the pages on a site. To block a certain page you must use only one URL prefix per disallow. You cannot include multiple folders or URL prefixes under the disallow element in robots.txt.
The following are some common uses of robots.txt files.
To allow all bots to access the whole site (the default robots.txt) the following is used:
User-agent:*
 Disallow:
To block the entire server from the bots, this robots.txt is used:
User-agent:*
 Disallow: /
To allow a single robot and disallow other robots:
User-agent: Googlebot
 Disallow:
User-agent: *
 Disallow: /
To block the site from a single robot:
User-agent: XYZbot
 Disallow: /
To block some parts of the site:
User-agent: *
 Disallow: /tmp/
 Disallow: /junk/
Use this robots.txt to block all content of a specific file type. In this example we are excluding all files that are Powerpoint files. (NOTE: The dollar ($) sign indicates the end of the line):
User-agent: *
 Disallow: *.ppt$
To block bots from a specific file:
User-agent: *
 Disallow: /directory/file.html
To crawl certain HTML documents in a directory that is blocked from bots you can use an Allow directive. Some major crawlers support the Allow directive in robots.txt. An example is shown below:
User-agent: *
 Disallow: /folder/
 Allow: /folder1/myfile.html
To block URLs containing specific query strings that may result in duplicate content, the robots.txt below is used. In this case, any URL containing a question mark (?) is blocked:
User-agent: *
 Disallow: /*?
Sometimes a page will get indexed even if you include in the robots.txt file due to reasons such as being linked externally. In order to completely block that page from being shown in search results, you can include robots noindex Meta tags on those pages individually. You can also include a nofollow tag and instruct the bots not to follow the outbound links by inserting the following codes:
For the page not to be indexed:
     <meta name=“robots” content=“noindex”>
For the page not to be indexed and links not to be followed:
            <meta name>=“robots” content=“noindex,nofollow”>
NOTE: If you add these pages to the robots.txt and also add the above Meta tag to the page, it will not be crawled but the pages may appear in the URL-only listings of search results, as the bots were blocked specifically from reading the Meta tags within the page.
Another important thing to note is that you must not include any URL that is blocked in your robots.txt file in your XML sitemap. This can happen, especially when you use separate tools to generate the robots.txt file and XML sitemap. In such cases, you might have to manually check to see if these blocked URLs are included in the sitemap. You can test this in your Google Webmaster Tools account if you have your site submitted and verified on the tool and have submitted your sitemap.
Go to Webmaster Tools > Optimization > Sitemaps and if the tool shows any crawl error on the sitemap(s) submitted, you can double check to see whether it is a page included in robots.txt.
Google Webmaster Tools Showing Sitemaps with Crawl Errors
Google Webmaster Tools Showing Sitemaps with Crawl Errors
If a page is blocked by robots.txt, GWT will describe the error as sitemap contains URLs which are blocked by robots.txt.
Alternatively, there is a robots.txt testing tool within GWT. It is found under Webmaster Tools > Health > Blocked URLs as shown in the screenshot below:
Blocked URLs Testing Tool on Google Webmaster Tools
Blocked URLs Testing Tool on Google Webmaster Tools
This tool is a great way to learn how to use your robots.txt file. You can see how Googlebots will treat URLs after you enter the URL you want to test.
Lastly there are some important points to remember when it comes to robots.txt:
  • When you use a forward slash after a directory or a folder, it means that robots.txt will block the directory or folder and everything in it, as shown below:
Disallow: /junk-directory/
  • Make sure CSS files and JavaScript codes that render rich content are not blocked in robots.txt, as this will hinder snippet previews.
  • Verify your syntax with the Google Webmaster Tool or get it done by someone who is well versed in robots.txt, otherwise you risk blocking important content on your site.
  • If you have two user-agent sections, one for all the bots and one for a specific bot, let’s say Googlebots, then you must keep in mind that the Googlebot crawler will only follow the instructions within the user-agent for Googlebot and not for the general one with the wildcard (*). In this case, you may have to repeat the disallow statements included in the general user-agent section in the section specific to Googlebots as well. Take a look at the text below:
User-agent: *
Disallow: /folder1/
Disallow: /folder2/
Disallow: /folder3/

User-agent: googlebot
 Crawl-delay: 2
Disallow: /folder1/
Disallow: /folder2/
Disallow: /folder3/
Disallow: /folder4/
Disallow: /folder5/
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