Does the website traffic comparison on Google Trends challenge Alexa?

On Plurk, I noticed many netizens discussing Google Trends and suddenly realized that Google has taken a historic step by launching a website traffic comparison feature. This functionality, aside from Alexa.com, was only implemented on a small scale in the U.S. by Compete Rank using innovative concepts (I was thrilled when my awflasher.com managed to rank on CompeteRank). Internationally, almost no one (with the ability) has provided sufficiently fair and objective service results. When comparing the traffic of Facebook and MySpace, the results from Google and Alexa are largely consistent.

Alexa once faced so much cheating and harassment that it was almost drowned out by criticism, eventually forcing them to disclose on their official blog that they accept external data information. With Google Trends suddenly launching its website traffic comparison service, can this be considered a challenge to Alexa? I believe this may have something to do with the gradual openness of Analytics. Analytics had earlier introduced a traffic comparison feature for webmasters. Based on my data, it closely matches the statistics from Google Analytics, which everyone knows is currently very accurate and impartial.

Of course, after Google Trends launched this service, whether Analytics can maintain such "clean fairness" remains questionable. If someone tampers with JavaScript code or uses a botnet to intentionally "inflate" Analytics results, it could become another method of cheating for spam sites. However, I trust that Google has effective anti-cheating measures and leverages its own network node advantages to obtain data from more objective channels.

Fortunately, through some small tests, I also found that Google Analytics' data does not fully reflect issues. Here, I have two comparisons to illustrate the problem: