We include only the top 10 million websites (top 1 million before June 2013) in the statistics in order to limit the impact of domain spammers. We use website popularity rankings provided by Alexa (an Amazon.com company) using a 3 months average ranking. Alexa rankings are sometimes considered inaccurate for measuring website traffic, but we find that they serve our purpose of providing a representative sample of established sites very well.
根拠 (スコア:0)
リンク先にあった
See technologies overview for explanations on the methodologies used in the surveys.
を辿って出たページに、こう書いてあった。
https://w3techs.com/technologies [w3techs.com]
We include only the top 10 million websites (top 1 million before June 2013) in the statistics in order to limit the impact of domain spammers. We use website popularity rankings provided by Alexa (an Amazon.com company) using a 3 months average ranking. Alexa rankings are sometimes considered inaccurate for measuring website traffic, but we find that they serve our purpose of providing a representative sample of established sites very well.
ここ5年以内で、Alexaのランキング100万を占めた1000万のサイトの文字コードから判定しているらしい、程度にしかおいらにはわからんので、引用していない部分も含め、精確な解説希望。