
1) American website 2) Review website 3) See-through entrance
Found on
https://www.crosswordclues.com/clue/glassdoor

Glassdoor is an American `job and career site where employees anonymously dish on the pros and cons of their companies and bosses`. In the year prior to April 2014, more than 500,000 company reviews were submitted to the site. Launched in 2008, its ratings of CEOs and workplaces based on collating these reviews are widely reported, and in 2013 t.....
Found on
http://en.wikipedia.org/wiki/Glassdoor
No exact match found.