lib.ru стала проблемной. Я проверила ее, используя гугловский тест - подробности внизу (на английском)

https://transparencyreport.google.com/safe-browsing/search

Current status
warning
Some pages on this site are unsafe
The site lib.ru contains harmful content, including pages that:

Install unwanted or malicious software on visitors’ computers
Send visitors to harmful websites
Unsafe content might only appear on some pages of a website. Check the URL of the specific directory or webpage you want to visit for more detailed safety info.