Is Epic Search a safe to use search engine...

Viruses and worms
1

WOT gives it a double yellow classification. There is not something there a s Google Safebrowsing.
Bruse Schneier does not question the search engine. Are there problems?
Seach example: https://epicsearch.in/search?pno=1&q=medicstran
And this was a helpful search result on the result page: http://www.joewein.de/sw/dbl-update/2012-11-28.htm

polonus

2

There certainly are https security issues, although PFS is installed, site not following best practices:
Help Icon
Click the icons in the tables below for a more detailed explanation.

Page meta security headers
Name
Value
Setting secure

x-content-security-policy
N/A
Insecure

cache-control
N/A
Insecure

HTTP security headers
Name
Type
Setting secure

x-content-type-options
Header Not Returned
Insecure

x-xss-protection
Header Not Returned
Insecure

x-frame-options
Header Not Returned
Insecure

x-content-security-policy
Header Not Returned
Insecure

cache-control
Header Not Returned
Insecure

strict-transport-security
Header Not Returned
Insecure

access-control-allow-origin
Header Not Returned
Secure

polonus