Recommend Websites

Online scanner :
https://www.virustotal.com

Temporary email
https://10minutemail.com

Test memory? Memtest86+
https://www.memtest.org

Webservice down or is it just me??
https://downforeveryoneorjustme.com

Find someone to call? fx Apple ect
https://gethuman.com

Need a picture?
https://pixabay.com

Certificate check
crt.sh | Certificate Search

Linux
tails linux

Scan your network: Open ports?? Pentest-Tools.com | 25+ Online Penetration Testing Tools – Scan your network and type in your public ip.