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:medios.ucr.ac.cr/medios/imagenes/large/2017/evaluacion_academica_web5a162b8d5af8a.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
Date Tue, 20 Aug 2019 02:52:00 GMT
Server Apache
Last-Modified Thu, 23 Nov 2017 01:59:42 GMT
Accept-Ranges bytes
Content-Length 120711
Cache-Control max-age=31536000
Expires Wed, 19 Aug 2020 02:52:00 GMT
Content-Type image/jpeg

Load Info

page size120711
load time (s)0.204587
redirect count0
speed download0
server IP163.178.170.121


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