In an online discussion, Google's John Mueller says that keyword stuffed title attributes might lead to problems with Google:

"It looks like a lot of the content on that page (and others within your site) is "hidden" behind title-attributes. To our algorithms, that might look a bit sneaky -- and in practice, it doesn't make that much sense, so I'd recommend going through your pages and making sure that you're using title-attributes as they would normally be used."

He also says that automatically translated content counts as spam:

"Keep in mind that automatically translated content would be seen as web-spam, so I'd recommend making sure that it can no longer be crawled & indexed."

Editor's note: to make sure that your web pages are not over-optimized, analyze them with IBP's Top 10 Optimizer.

WSJ: as Google tweaks searches, some get lost in the web

"Google Inc. recently tweaked the way its search engine ranks websites, seeking to downplay sites it suspects of artificially boosting their rankings. Now some small businesses say they are scrambling to avoid being relegated to the Internet's junk bin. [...]

Because Google makes so many changes to its algorithm, it's often difficult for small-business owners with limited resources to stay on top of all of its tweaks."

Editor's note: if you want to find out if your website is ready for Google's latest algorithm, analyze your web pages with IBP's Top 10 Optimizer.

How Alexa calculate traffic Rankings

Alexa computes traffic rankings by analyzing the Web usage of millions of Alexa Toolbar users and data obtained from other, diverse traffic data sources. The information is sorted, sifted, anonymized, counted, and computed, until, finally, we get the traffic rankings shown in the Alexa service. The process is relatively complex, but if you have a need to know, please read on.

What is Traffic Rank?

The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and data obtained from other, diverse traffic data sources, and is a combined measure of page views and users (reach). As a first step, Alexa computes the reach and number of page views for all sites on the Web on a daily basis. The main Alexa traffic rank is based on a value derived from these two quantities averaged over time (so that the rank of a site reflects both the number of users who visit that site as well as the number of pages on the site viewed by those users). The three-month change is determined by comparing the site's current rank with its rank from three months ago. For example, on July 1, the three-month change would show the difference between the rank based on traffic during the first quarter of the year and the rank based on traffic during the second quarter.

What are sites and Web hosts?

Traffic is computed for sites, which are typically defined at the domain level. For example, the Web hosts www.msn.com, carpoint.msn.com and slate.msn.com are all treated as part of the same site, because they all reside on the same domain, msn.com. An exception is blogs or personal home pages, which are treated separately if they can be automatically identified as such from the URLs in question. Also, sites which are found to be serving the same content (mirrors) are generally counted together as the same site.

What is Reach?

Reach measures the number of users. Reach is typically expressed as the percentage of all Internet users who visit a given site. So, for example, if a site like yahoo.com has a reach of 28%, this means that of all global Internet users measured by Alexa, 28% of them visit yahoo.com. Alexa's one-week and three-month average reach are measures of daily reach, averaged over the specified time period. The three-month change is determined by comparing a site's current reach with its values from three months ago.

What are Page Views?

Page views measure the number of pages viewed by site visitors. Multiple page views of the same page made by the same user on the same day are counted only once. The page views per user numbers are the average numbers of unique pages viewed per user per day by the visitors to the site. The three-month change is determined by comparing a site's current page view numbers with those from three months ago.

How Are Traffic Trend Graphs Calculated?

The Trend graph shows you a three-day moving average of the site's daily traffic rank, charted over time. The daily traffic rank reflects the traffic to the site based on data for a single day. In contrast, the main traffic rank shown in the Alexa Toolbar and elsewhere in the service is calculated from three months of aggregate traffic data.

Daily traffic rankings will sometimes benefit sites with sporadically high traffic, while the three-month traffic ranking benefits sites with consistent traffic over time. Since we feel that consistent traffic is a better indication of a site's value, we've chosen to use the three-month traffic rank to represent the site's overall popularity. We use the daily traffic rank in the Trend graphs because it allows you to see short-term fluctuations in traffic much more clearly.

It is possible for a site's three-month traffic rank to be higher than any single daily rank shown in the Trend graph. On any given day there may be many sites that temporarily shoot up in the rankings. But if a site has consistent traffic performance, it may end up with the best ranking when the traffic data are aggregated into the three-month average. A good analogy is a four-day golf tournament: if a different player comes in first at each match, but you come in second at all four matches, you can end up winning the tournament.

Source: http://www.alexa.com/site/help/traffic_learn_more

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