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:aromaweb.com/images/books/0443062412.gi...
site title:
Url ContentGraphics Interchange Format
MIME Type / Internet Media Typeimage/gif
MIME Type image
File Extension.gif
More Details (link to:)Wikipedia: Graphics Interchange Format
Powered by: Very Tiny URL Shortener at https://vturl.net VeryTinyURL

Header

HTTP/1.1 200 OK
Content-Type image/gif
Last-Modified Sat, 20 Jan 2018 18:00:04 GMT
Accept-Ranges bytes
ETag 5d44877f1892d31:0
Server Microsoft-IIS/7.5
X-Powered-By ASP.NET
X-App-Hosting pool=classic
Date Sun, 20 May 2018 21:34:32 GMT
Content-Length 14511

Load Info

page size14511
load time (s)0.594365
redirect count0
speed download0
server IP76.12.23.233


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