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/2019/5cdc909aa06485cdc112968407invit-seminario-mujer-matematica-pizarra.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 Mon, 23 Sep 2019 07:51:34 GMT
Server Apache
Last-Modified Wed, 15 May 2019 22:20:12 GMT
Accept-Ranges bytes
Content-Length 103198
Cache-Control max-age=31536000
Expires Tue, 22 Sep 2020 07:51:34 GMT
Content-Type image/jpeg

Load Info

page size103198
load time (s)0.453775
redirect count0
speed download0
server IP163.178.170.121


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