If you are not sure if the website you want to visit is safe, you can check it out here. Enter the address (url) of the website and see the invisible elements, such as a header or meta data.
site address:cdn4.slideserve.com/7544822/why-marketing-should-care-about-quality-t.jp...
site title:
Url ContentJPEG Image
MIME Type / Internet Media Typeimage/jpeg
MIME Type image
File Extension.jpeg, .jpg
More Details (link to:)RFC 1314
Powered by: Very Tiny URL Shortener at https://vturl.net VeryTinyURL

Header

HTTP/1.1 200 OK
Server Apache/2.2.29 (Unix) mod_ssl/2.2.29 OpenSSL/1.0.1e-fips mod_bwlimited/1.4
Last-Modified Mon, 03 Apr 2017 11:26:10 GMT
ETag 8e80d1f-17e5-54c416d117880
Accept-Ranges bytes
Content-Length 6117
Content-Type image/jpeg
Cache-Control max-age=31536000
Expires Tue, 23 Jun 2020 17:30:23 GMT
Date Mon, 24 Jun 2019 17:30:23 GMT
Connection keep-alive

Load Info

page size6117
load time (s)1.711073
redirect count0
speed download0
server IP23.50.58.82


* all occurrences of the string "http://" have been changed to "htt???/"