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:whois.domains-register.com/www.web-thermometer.d...
favicon.ico:
site title:Register web-thermometer.de Domain
Url ContentHyperText Markup Language (HTML)
MIME Type / Internet Media Typetext/html
MIME Type text
File Extension.html
More Details (link to:)Wikipedia: HTML
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Header

HTTP/1.1 200 OK
Date Sat, 27 Feb 2021 04:40:20 GMT
Server Apache/2.4.25 (Debian)
Vary Accept-Encoding
Content-Encoding gzip
Content-Length 30292
Content-Type text/html; charset=UTF-8

Meta Tags

title="Register web-thermometer.de Domain"
http-equiv="Content-Type" content="text/html; charset=utf-8"

Load Info

page size30292
load time (s)0.373542
redirect count0
speed download81093
server IP178.16.129.24

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