tests website safety
Google’s Safe Browsing Test
https://transparencyreport.google.com/safe-browsing/search
Norton Safe Web Report
https://safeweb.norton.com
Qualys SSL Report
https://www.ssllabs.com/ssltest/index.html
Bitdefender Trafficlight
trafficlight.bitdefender.com/info?url=www.isitzen.com
Securi
https://sitecheck.sucuri.net
URLvoid Website Reputation Checker Tool
www.urlvoid.com
VirusTotal Analyze suspicious files and URLs to detect types of malware
https://www.virustotal.com/#/home/url
TRENDmicro Site Safety Center.
https://global.sitesafety.trendmicro.com
KasperskyVirusDesk Scan your file or link for viruses
https://virusdesk.kaspersky.com
avoid startup disk getting too full
boot drives need free space
avoid ninety percent full
for this less is more
1) make sure you have a backup, before any purging.
2) trash large files not needed (downloaded .dmg, installers etc.)
3) empty trash
Speed Test
macOS High Sierra
macOS High Sierra (version 10.13) is the fourteenth major release of macOS, Apple Inc.'s desktop operating system for Macintosh computers. It is the successor to macOS Sierra and it was announced at the WWDC 2017 on June 5, 2017 before being released on September 25, 2017.
