| Web Technologies | |||
| Easy | Medium | Difficult | |
| 2020 | — | — | — |
| 2018 | 1.SEO | — | — |
| 2017(Dec) | — | — | — |
| 2017(May) | 1.XML
2.HTML tags |
— | — |
| 2016 | 1.XML | — | — |
| 2015 | 1.HTML commands
2.XML commands 3.Javascript |
— | — |
| 2014 | — | — | — |
| 2013 | — | — | — |
| 2011 | 1.Commands | — | — |
| 2009 | — | — | — |
| 2008 | — | — | — |
| 2007 | — | — | — |
