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:www.couchsurfing.com/bEcn7fQX/xhr/api/v1/collector/noScript.gif?appId=PXbEcn7fQ...
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
Server nginx/1.15.8
Date Fri, 24 May 2019 12:59:17 GMT
Content-Type image/gif
Content-Length 798
Connection keep-alive
Access-Control-Allow-Credentials true
Access-Control-Allow-Methods GET,HEAD,PUT,PATCH,POST,DELETE
Cache-Control public, max-age=0
Set-Cookie pxvid=bce68321-7e23-11e9-a4bb-0242ac12000c; expires=Sat, 14 Nov 2020 12:59:16 GMT; HttpOnly
Timing-Allow-Origin *
Via 1.1 google
Alt-Svc clear

Load Info

page size798
load time (s)0.45332
redirect count0
speed download0
server IP35.173.176.238


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