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Showing posts with label Google Algorithm Update. Show all posts

Aug 8, 2011

Google does crash bad content

Google has recently released a major update of its search algorithm . It is essentially about low-quality sites below to place in search. It is striking that in the last week masses search engine rankings have crashed. I have all the times a bit under the microscope and compiled the factors that have led in recent days to massive declines Visibility:

Directory listings
Pages with little content

1st Directory listings
The theme directory listings, especially for large Internet portals is to be found again and again. Such lists are used to improve the internal linking, and in this case means that the address entries are found more easily. This fly but just mass from the index. The interesting thing is that this does not affect the visibility great. I've watched a few of these kind of portals address. Without exception, all just to lose at least 30% of their indexed pages. In the above case studied is as high as 85%. But, and this is the interesting part: It has no effect on the visibility of the page. The investigations which I made to show the topic however, for example, that such a move, the linked list of pages sub-pages in the rankings down. It almost seems as if this kind of internal linking is just completely devalued.

Changes in Google Algorithm To Push Low-Quality Sites

Google said Thursday that it had made a major change to its algorithm in an effort to improve the rankings of high-quality Web sites in its search results — and to reduce the visibility of low-quality sites. While the company did not say so explicitly, the change appears to be directed in part at so-called content farms like eHow and Answerbag, which generate articles based on popular search queries so they will rise to the top of the rankings and attract clicks.

Google has been facing criticism from some users for allowing articles that aren’t useful to appear prominently in search results. That has now changed, according to the company.

“This update is designed to reduce rankings for low-quality sites — sites which are low-value add for users, copy content from other Web sites or sites that are just not very useful,” Amit Singhal, a Google fellow, and Matt Cutts, head of the spam-fighting team, wrote in a company blog post. “At the same time, it will provide better rankings for high-quality sites — sites with original content and information such as research, in-depth reports, thoughtful analysis and so on.”

Google has said that it makes about 500 changes to its algorithm a year, but most are so small that the company doesn’t announce them. This one will affect 11.8 percent of search queries, Google said, so it is big enough to significantly change the results that people see.

Google’s announcement did not mention content farms. But Mr. Cutts has spoken in recent weeks about the problem and said Google was working on algorithm changes to fix it. “In general, there are some content farms that I think it would be fair to call spam, in the sense that the quality is so low-quality that people complain,” he said in a recent interview.

While the content on these sites can be useful, much of it is closer in value to the eHow article on making friends in college, which includes tips like “consider joining a sorority or fraternity” and “remember to have a good time, smile and laugh.” Many of the articles on these sites are phrased as how-tos, and even after Thursday’s change they still show up as top results in searches for how to do something — but if someone phrases a search query that way, they might want to read such an article. In the blog post, Google said the updated algorithm rewards high-quality sites, so the effect will become clear over time.

Last week, Google introduced an extension to the Chrome browser that people can use to block certain sites, and said it would study which sites people block to figure out which ones bother users. On Thursday, Google said that it did not use this data to change the algorithm, but that the new algorithm caught 84 percent of the most-blocked Web sites.

Feb 3, 2011

Google Launched an Algorithmic Change Tend to Rank Sites

Last week, Google launched an algorithmic change tend to rank sites with original content scraper so low. The net effect is that researchers are more likely to see the sites that wrote the original content. An example would be stackoverflow.com tend to rank higher than sites that just stackoverflow.com reuse the content. Note that the algorithm change is not specific to stackoverflow.com well.

It was a very specific launch just over 2% of change requests in a certain way, but less than half of one percent of search results enough to change anyone if really noticing. The net effect is that researchers are more likely to see the sites that wrote the original content rather than a site that scraped or copy content from the original site.

Nov 2, 2010

Latest Google Update for Its Algorithm

Google has recently launched an update for its search engine’s algorithm. Nicknamed “Jagger,” this update has resulted to critical changes in the way that Google gives weight to certain factors that it looks at in coming up for PageRank. Because of this, there have been dramatic changes to Google’s search results. Google for its part has claimed that it is only out to give out more relevant search engine results that would maximize the searcher’s experience.

Over the weeks after the update was implemented, several sites that have not been placed in top spots have suddenly flew in ranking while some of those that have been ranked high previously have found their ranking fluctuating.

What is the update about? And what changes have been introduced into Google’s system?
Older Sites See Prominence in Results

One of the three affected areas is the domain age or the website history. Google has decided to place emphasis on the site’s age in calculating PageRank. One obvious effect of this is that older sites have suddenly appeared in the top spots of every search result page, outdoing the newer sites.

This change has brought about several questionable effects. If the older sites have a lot more information than the relatively newer site that has previously held the top spot, then it is good. But if they don’t, then Google has inadvertently prejudiced against newer sites with better quality. By default, older sites have outdated information that would most likely be irrelevant or lacking information to help a web searcher in his quest for information.

On a positive note, the greater weight on the older sites has resulted to suppression of a black hat technique of launching multiple domains just to gain ranks.

Google Recalculates Values for Backlinks

Google has also made changes to how it gives value to backlinks, or links that point to a site. Previously, Google simply calculates the number of links that point to your site (treating it as a vote of support along the way) in coming with up your page’s ranking. With this update, Google has now placed varying weights depending on the link’s age. Newer links have lesser values compared to links that have existed quite a long way before. Google has adjusted its algorithm in a manner that links start to gain more weight after periods of time.

This update has affected those webmasters that resort to link buying to build up their inbound links. No longer could they depend on these methods to quickly gain rank because any new link posted for the site would still take some time before it could build up some weight to materially affect the site’s ranking.

PageRank Loses Part of its Importance

The latest update has resulted to lesser importance for the PR value in the calculation of ranking. Google apparently has realized that a high PR value is not at all related to a website’s relevance and importance to a search query. PR, after all, is calculated by the number of backlinks to a site together with an importance factor that is determined by how the site being pointed to is related to the site making the referral. High-quality links carry the heaviest weight in the calculation, since these links are coming from sites that are considered relevant (and thus important) to the site being referred.

PageRank has come under various abuses by some SEO experts that use black hat techniques to artificially inflate sites’ PR values. While having high PRs serve little to the page’s actual ranking in results, artificially high PR sites can once in a while swindle a link-buying webmaster to buy links from them.

This is related to the practice of PR buying, where a webmaster buys rights from a high PR site to post a link to his site. This practice stems from the long-running belief within the SEO community that a site being linked by a high-PR site gets the PR value of that site. Hence, webmasters buy links from high-PR sites for that purpose, although with the age delay addition to the algorithm this practice has lost its effectiveness.

There has been speculation that PageRank will be replaced by TrustRank, a similar algorithm used by Google’s competitor Yahoo although this has never been proven by public statements. It is also said that Google might have decided that TrustRank is irrelevant. Since they are similar, Google could have concluded that its own PageRank algorithm is irrelevant as well, although most people find this unlikely.