| Technology | Years | |
|---|---|---|
| Programming (Pascal, C, Perl, PHP, etc.) | 27 | |
| Online data management | 24 | |
| Web hosting, HTML, multimedia content | 17 | |
| Web crawling, indexing bots | 17 | |
| SEO, Search Engine Optimization | 13 | |
| Analytics, cookie tracking, traffic mapping | 12 | |
| PHP development | 10 | |
| WordPress, SEO analytics, CSS | 7 | |
| Adsense | 6 | |
| MySQL | 5 | |
| JQuery | 2 | |
| VPS Hosting, AJAX, Email marketing | 1 |