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/aromatherapy/728x90NG.gi...
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-Length 44875
Content-Type image/gif
Last-Modified Sat, 20 Jan 2018 17:54:38 GMT
Accept-Ranges bytes
ETag 20c64cbd1792d31:0
Server Microsoft-IIS/7.5
X-Powered-By ASP.NET
X-App-Hosting pool=classic
Date Mon, 19 Feb 2018 15:54:29 GMT

Load Info

page size44875
load time (s)1.578921
redirect count0
speed download0
server IP76.12.23.233


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