Do you have any idea if they call employers (present and past)?
Usually not. They will do some of the following checks using their reliable search engines.
1. Check if email/website/social media page provided is real or shows company name when putting in google etc.
2. Search the phone directory to ensure contact details are true.
3. Verify Company Name is registered with the national government.
4. Verify that Company is physically located in an area where other companies are also registered (through Google Maps usually).
I haven't seen any case to date where they physically visited the company or contacted employers directly. However, I know cases from CIC where they rejected because they couldn't trace company (some companies were registered in Residential Areas especially in owners house). In another case, they called an applicant for an interview to re-assure that experience was actually performed. So, I don't think they contact employers outside Canada.
I hope this will help.
