Amazon Alexa http://www.alexa.com/topsites/countries/CN
(2) Programming language ranking
TIOBE Index https://www.tiobe.com/tiobe-index/
PYPL index http:// pypl.github.io/PYPL.html
RedMonk http://redmonk.com/sogrady/2017/03/17/language-rankings-1-17/
(3) Database ranking
DB-Engines https://db-engines. com/en/ranking
(4) Web server ranking
Netcraft https://news.netcraft.com/archives/category/web-server-survey/
(5) Operating system/browser ranking
StatCounter http://gs.statcounter. com/
W3Counter https://www.w3counter.com/globalstats.php
NetMarketShare https://www.netmarketshare.com/
Baidu Statistics http://tongji.baidu.com/data/browser/
(6) Gartner Report
Technology Hype Cycle (Hype Cycle) [url= http://www.gartner.com/newsroom/id/3412017] http:// www.gartner.com/newsroom/id/3412017[/url]Magic
Quadrant http://www.gartner.com/technology/research/methodologies/magicQuadrants.jsp
(7) Trends
Google Trends https:// trends.google.com/trends/
Stack Overflow Trends
https://insights.stackoverflow.com/trends
Indeed Job Trends https://www.indeed.com/jobtrends
(8) Other
Web Technology Surveys W3Techs https://w3techs. com/
Web Top Technology Ranking BuiltWith https://trends.builtwith.com/
