Création des Logiciels de gestion d'Entreprise, Création et référencement des sites web, Réseaux et Maintenance, Conception
salam every one, this is a topic from google web master centrale blog:
If all of your sites offer essentially the same content, additional sites are not contributing much to the Internet.
this is a topic published in 2013... to get contents for your blog or your forum, just contact me at: devnasser@gmail.com
Webmaster Level: All
Running a single compelling, high quality site can be time- and resource-consuming, not to mention the creativity it requires to make the site a great one. At times–particularly when it comes to rather commercial topics like foreign currency exchange or online gambling–we see that some webmasters try to compete for visibility in Google search results with a large
number of sites on the same topic. There are a few things to keep in mind when considering a strategy like this for sites that you want to have listed in our search results.
Some less creative webmasters, or those short on time but with substantial resources on their hands, might be tempted to create a multitude of similar sites without necessarily adding unique information to any of these. From a user’s perspective, these sorts of repetitive sites can constitute a poor user experience when visible in search results. Luckily, over time our algorithms have gotten pretty good at recognizing similar content so as to serve users with a diverse range of information. We don’t recommend creating similar sites like that; it’s not a good use of your time and resources.
If all of your sites offer essentially the same content, additional sites are not contributing much to the Internet.
While you’re free to run as many sites as you want, keep in mind that users prefer to see unique and compelling content. It is a good idea to give each site its own content, personality and function. This is true of any website, regardless of whether it’s a single-page hobby-site or part of a large portfolio. When you create a website, try to add something new or some value to the Internet; make something your users have never seen before, something that inspires and fascinates them, something they can’t wait to recommend to their friends.
When coming up with an idea for a website, scan the web first. There are many websites dealing with common and popular services like holiday planning, price comparisons or foreign exchange currency trading. It frequently doesn’t make sense to reinvent the wheel and compete with existing broad topic sites. It’s often more practical and rewarding to focus on smaller or niche topics where your expertise is best and where competition for user attention might be less fierce.
A few webmasters choose to focus their resources on one domain but make use of their domain portfolio by creating a multitude of smaller sites linking to it. In some situations these sites may be perceived as doorways. Without value of their own, these doorway sites are unlikely to stand the test of time in our search results. If you registered several domains but only want to focus on one topic, we recommend you create unique and compelling content on each domain or simply 301 redirect all users to your preferred domain. Think of your web endeavour as if it were a restaurant: You want each dish to reflect the high quality of the service you provide; repeat the same item over and over on your menu and your restaurant might not do so well. Identify and promote your strength or uniqueness. Ask yourself the following questions: What makes you better than the competition? What new service do you provide that others don’t? What makes your sites unique and compelling enough to make users want to revisit them, link to them or even recommend them to their friends?
We suggest not spreading out your efforts too broadly, though. It can be difficult to maintain multiple sites while keeping the content fresh and engaging. It’s better to have one or a few good sites than a multitude of shallow, low value-add sites. As always, we encourage you to share your thoughts via comments as well as by contributing to the Google Webmaster community.
salam every one, this is a topic from google web master centrale blog: Webmaster level: All
Having a healthy and well-performing website is important, both to you as the webmaster and to your users. When we discover critical issues with a website, Webmaster Tools will now let you know by automatically sending an email with more information.
We’ll only notify you about issues that we think have significant impact on your site’s health or search performance and which have clear actions that you can take to address the issue. For example, we’ll email you if we detect malware on your site or see a significant increase in errors while crawling your site.
For most sites these kinds of issues will occur rarely. If your site does happen to have an issue, we cap the number of emails we send over a certain period of time to avoid flooding your inbox. If you don’t want to receive any email from Webmaster Tools you can change your email delivery preferences.
We hope that you find this change a useful way to stay up-to-date on critical and important issues regarding your site’s health. If you have any questions, please let us know via our Webmaster Help Forum.
this is a topic published in 2013... to get contents for your blog or your forum, just contact me at: devnasser@gmail.com
Having a healthy and well-performing website is important, both to you as the webmaster and to your users. When we discover critical issues with a website, Webmaster Tools will now let you know by automatically sending an email with more information.
We’ll only notify you about issues that we think have significant impact on your site’s health or search performance and which have clear actions that you can take to address the issue. For example, we’ll email you if we detect malware on your site or see a significant increase in errors while crawling your site.
For most sites these kinds of issues will occur rarely. If your site does happen to have an issue, we cap the number of emails we send over a certain period of time to avoid flooding your inbox. If you don’t want to receive any email from Webmaster Tools you can change your email delivery preferences.
We hope that you find this change a useful way to stay up-to-date on critical and important issues regarding your site’s health. If you have any questions, please let us know via our Webmaster Help Forum.
this is a topic published in 2013... to get contents for your blog or your forum, just contact me at: devnasser@gmail.com
salam every one, this is a topic from google web master centrale blog:
Our goal is to provide users the best search experience by presenting equitable and accurate results. We enjoy working with webmasters, and an added benefit of our working together is that when you make better and more accessible content, the internet, as well as our index, improves. This in turn allows us to deliver more relevant search results to users.
If, however, a webmaster chooses to buy or sell links for the purpose of manipulating search engine rankings, we reserve the right to protect the quality of our index. Buying or selling links that pass PageRank violates our webmaster guidelines. Such links can hurt relevance by causing:
- Inaccuracies: False popularity and links that are not fundamentally based on merit, relevance, or authority
- Inequities: Unfair advantage in our organic search results to websites with the biggest pocketbooks
In order to stay within Google's quality guidelines, paid links should be disclosed through a rel="nofollow" or other techniques such as doing a redirect through a page which is robots.txt'ed out. Here's more information explaining our stance on buying and selling links that pass PageRank:
February 2003: Google's official quality guidelines have advised "Don't participate in link schemes designed to increase your site's ranking or PageRank" for several years.
September 2005: I posted on my blog about text links and PageRank.
December 2005: Another post on my blog discussed this issue, and said
September 2006: In an interview with John Battelle, I noted that "Google does consider it a violation of our quality guidelines to sell links that affect search engines."
January 2007: I posted on my blog to remind people that "links in those paid-for posts should be made in a way that doesn’t affect search engines."
April 2007: We provided a mechanism for people to report paid links to Google.
June 2007: I addressed paid links in my keynote discussion during the Search Marketing Expo (SMX) conference in Seattle. Here's a video excerpt from the keynote discussion. It's less than a minute long, but highlights that Google is willing to use both algorithmic and manual detection of paid links that violate our quality guidelines, and that we are willing to take stronger action on such links in the future.
June 2007: A post on the official Google Webmaster Blog noted that "Buying or selling links to manipulate results and deceive search engines violates our guidelines." The post also introduced a new official form in Google's webmaster console so that people could report buying or selling of links.
June 2007: Google added more specific guidance to our official webmaster documentation about how to report buying or selling links and what sort of link schemes violate our quality guidelines.
August 2007: I described Google's official position on buying and selling links in a panel dedicated to paid links at the Search Engine Strategies (SES) conference in San Jose.
September 2007: In a post on my blog recapping the SES San Jose conference, I also made my presentation available to the general public (PowerPoint link).
October 2007: Google provided comments for a Forbes article titled "Google Purges the Payola".
October 2007: Google officially confirmed to Search Engine Land that we were taking stronger action on this issue, including decreasing the toolbar PageRank of sites selling links that pass PageRank.
October 2007: An email that I sent to Search Engine Journal also made it clear that Google was taking stronger action on buying/selling links that pass PageRank.
We appreciate the feedback that we've received on this issue. A few of the more prevalent questions:
Q: Is buying or selling links that pass PageRank a violation of Google's guidelines? Why?
A: Yes, it is, for the reasons we mentioned above. I also recently did a post on my personal blog that walks through an example of why search engines wouldn't want to count such links. On a serious medical subject (brain tumors), we highlighted people being paid to write about a brain tumor treatment when they hadn't been aware of the treatment before, and we saw several cases where people didn't do basic research (or even spellchecking!) before writing paid posts.
Q: Is this a Google-only issue?
A: No. All the major search engines have opposed buying and selling links that affect search engines. For the Forbes article Google Purges The Payola, Andy Greenberg asked other search engines about their policies, and the results were unanimous. From the story:
Other engines have also commented about this individually, e.g. a search engine representative from Microsoft commented in a recent interview and said
Q: Is that why we've seen some sites that sell links receive lower PageRank in the Google toolbar?
A: Yes. If a site is selling links, that can affect our opinion about the value of that site or cause us to lose trust in that site.
Q: What recourse does a site owner have if their site was selling links that pass PageRank, and the site's PageRank in the Google toolbar was lowered?
A: The site owner can address the violations of the webmaster guidelines and submit a reconsideration request in Google's Webmaster Central console. Before doing a reconsideration request, please make sure that all sold links either do not pass PageRank or are removed.
Q: Is Google trying to tell webmasters how to run their own site?
A: No. We're giving advice to webmasters who want to do well in Google. As I said in this video from my keynote discussion in June 2007, webmasters are welcome to make their sites however they like, but Google in turn reserves the right to protect the quality and relevance of our index. To the best of our knowledge, all the major search engines have adopted similar positions.
Q: Is Google trying to crack down on other forms of advertisements used to drive traffic?
A: No, not at all. Our webmaster guidelines clearly state that you can use links as means to get targeted traffic. In fact, in the presentation I did in August 2007, I specifically called out several examples of non-Google advertising that are completely within our guidelines. We just want disclosure to search engines of paid links so that the paid links won't affect search engines.
Q: I'm aware of a site that appears to be buying/selling links. How can I get that information to Google?
A: Read our official blog post about how to report paid links from earlier in 2007. We've received thousands and thousands of reports in just a few months, but we welcome more reports. We appreciate the feedback, because it helps us take direct action as well as improve our existing algorithmic detection. We also use that data to train new algorithms for paid links that violate our quality guidelines.
Q: Can I get more information?
A: Sure. I wrote more answers about paid links earlier this year if you'd like to read them. And if you still have questions, you can join the discussion in our Webmaster Help Group.this is a topic published in 2013... to get contents for your blog or your forum, just contact me at: devnasser@gmail.com
Our goal is to provide users the best search experience by presenting equitable and accurate results. We enjoy working with webmasters, and an added benefit of our working together is that when you make better and more accessible content, the internet, as well as our index, improves. This in turn allows us to deliver more relevant search results to users.
If, however, a webmaster chooses to buy or sell links for the purpose of manipulating search engine rankings, we reserve the right to protect the quality of our index. Buying or selling links that pass PageRank violates our webmaster guidelines. Such links can hurt relevance by causing:
- Inaccuracies: False popularity and links that are not fundamentally based on merit, relevance, or authority
- Inequities: Unfair advantage in our organic search results to websites with the biggest pocketbooks
In order to stay within Google's quality guidelines, paid links should be disclosed through a rel="nofollow" or other techniques such as doing a redirect through a page which is robots.txt'ed out. Here's more information explaining our stance on buying and selling links that pass PageRank:
February 2003: Google's official quality guidelines have advised "Don't participate in link schemes designed to increase your site's ranking or PageRank" for several years.
September 2005: I posted on my blog about text links and PageRank.
December 2005: Another post on my blog discussed this issue, and said
Many people who work on ranking at search engines think that selling links can lower the quality of links on the web. If you want to buy or sell a link purely for visitors or traffic and not for search engines, a simple method exists to do so (the nofollow attribute). Google’s stance on selling links is pretty clear and we’re pretty accurate at spotting them, both algorithmically and manually. Sites that sell links can lose their trust in search engines.
September 2006: In an interview with John Battelle, I noted that "Google does consider it a violation of our quality guidelines to sell links that affect search engines."
January 2007: I posted on my blog to remind people that "links in those paid-for posts should be made in a way that doesn’t affect search engines."
April 2007: We provided a mechanism for people to report paid links to Google.
June 2007: I addressed paid links in my keynote discussion during the Search Marketing Expo (SMX) conference in Seattle. Here's a video excerpt from the keynote discussion. It's less than a minute long, but highlights that Google is willing to use both algorithmic and manual detection of paid links that violate our quality guidelines, and that we are willing to take stronger action on such links in the future.
June 2007: A post on the official Google Webmaster Blog noted that "Buying or selling links to manipulate results and deceive search engines violates our guidelines." The post also introduced a new official form in Google's webmaster console so that people could report buying or selling of links.
June 2007: Google added more specific guidance to our official webmaster documentation about how to report buying or selling links and what sort of link schemes violate our quality guidelines.
August 2007: I described Google's official position on buying and selling links in a panel dedicated to paid links at the Search Engine Strategies (SES) conference in San Jose.
September 2007: In a post on my blog recapping the SES San Jose conference, I also made my presentation available to the general public (PowerPoint link).
October 2007: Google provided comments for a Forbes article titled "Google Purges the Payola".
October 2007: Google officially confirmed to Search Engine Land that we were taking stronger action on this issue, including decreasing the toolbar PageRank of sites selling links that pass PageRank.
October 2007: An email that I sent to Search Engine Journal also made it clear that Google was taking stronger action on buying/selling links that pass PageRank.
We appreciate the feedback that we've received on this issue. A few of the more prevalent questions:
Q: Is buying or selling links that pass PageRank a violation of Google's guidelines? Why?
A: Yes, it is, for the reasons we mentioned above. I also recently did a post on my personal blog that walks through an example of why search engines wouldn't want to count such links. On a serious medical subject (brain tumors), we highlighted people being paid to write about a brain tumor treatment when they hadn't been aware of the treatment before, and we saw several cases where people didn't do basic research (or even spellchecking!) before writing paid posts.
Q: Is this a Google-only issue?
A: No. All the major search engines have opposed buying and selling links that affect search engines. For the Forbes article Google Purges The Payola, Andy Greenberg asked other search engines about their policies, and the results were unanimous. From the story:
Search engines hate this kind of paid-for popularity. Google's Webmaster guidelines ban buying links just to pump search rankings. Other search engines including Ask, MSN, and Yahoo!, which mimic Google's link-based search rankings, also discourage buying and selling links.
Other engines have also commented about this individually, e.g. a search engine representative from Microsoft commented in a recent interview and said
The reality is that most paid links are a.) obviously not objective and b.) very often irrelevant. If you are asking about those then the answer is absolutely there is a risk. We will not tolerate bogus links that add little value to the user experience and are effectively trying to game the system.
Q: Is that why we've seen some sites that sell links receive lower PageRank in the Google toolbar?
A: Yes. If a site is selling links, that can affect our opinion about the value of that site or cause us to lose trust in that site.
Q: What recourse does a site owner have if their site was selling links that pass PageRank, and the site's PageRank in the Google toolbar was lowered?
A: The site owner can address the violations of the webmaster guidelines and submit a reconsideration request in Google's Webmaster Central console. Before doing a reconsideration request, please make sure that all sold links either do not pass PageRank or are removed.
Q: Is Google trying to tell webmasters how to run their own site?
A: No. We're giving advice to webmasters who want to do well in Google. As I said in this video from my keynote discussion in June 2007, webmasters are welcome to make their sites however they like, but Google in turn reserves the right to protect the quality and relevance of our index. To the best of our knowledge, all the major search engines have adopted similar positions.
Q: Is Google trying to crack down on other forms of advertisements used to drive traffic?
A: No, not at all. Our webmaster guidelines clearly state that you can use links as means to get targeted traffic. In fact, in the presentation I did in August 2007, I specifically called out several examples of non-Google advertising that are completely within our guidelines. We just want disclosure to search engines of paid links so that the paid links won't affect search engines.
Q: I'm aware of a site that appears to be buying/selling links. How can I get that information to Google?
A: Read our official blog post about how to report paid links from earlier in 2007. We've received thousands and thousands of reports in just a few months, but we welcome more reports. We appreciate the feedback, because it helps us take direct action as well as improve our existing algorithmic detection. We also use that data to train new algorithms for paid links that violate our quality guidelines.
Q: Can I get more information?
A: Sure. I wrote more answers about paid links earlier this year if you'd like to read them. And if you still have questions, you can join the discussion in our Webmaster Help Group.this is a topic published in 2013... to get contents for your blog or your forum, just contact me at: devnasser@gmail.com