How to check a domain for backlinks?

Question

Search Engine Optimization

How to check a dropped domain for external links?
There are many services, including free ones, for example: linkpad.ru
that show the number of backlinks, including the links themselves
But if you follow these links, then:
- there are no links
- the domains do not exist
- a redirect to another domain
Question: Yes whether the service is free or with a free period to get existing anchor links from the domain?

Answer 1

no
semrash and ahrefs

Answer 2

Take advantage of a clubbing or backlink for a penny .
There are no free services.