The site is safe and not a phishing site The connection to the site is encrypted (HTTPS), not that the site is trustworthy The site has no malware The site is owned by a government
Cookies are shared between all sites Scripts from one origin (scheme, host, and port) cannot freely read data from another origin Only one tab can be open per site Two sites cannot share the same IP address
To disable cookies To cache the site permanently To use HTTP/1.1 only To always use HTTPS for that domain for a set period, refusing plain HTTP connections