Our detectives are back with the following intel on this WordPress site
The site is using the TamilYogi theme by TamilYogi .
We could identify 2 plugins (there might be more) -
All in One SEO Pack
W3 Total Cache
This information was last updated 11 September, 2019
The original WordPress SEO plugin, downloaded over 50,000,000 times since 2007.
Search Engine (SEO) & Performance Optimization (WPO) via caching. Integrated caching: CDN, Minify, Page, Object, Fragment, Database support.