A free firewall that blocks bad sites in every app.

Shield stops ads, trackers, phishing and malware before they load. It works on any network and needs no account.

Shield next to the firewall you already have.

Shield next to the firewall you already have.
Feature	Spider Shield	Built-in firewall	Router DNS blocker	Browser ad blocker
Blocks ads and trackers	Yes	No	Yes	One browser
Blocks phishing and malware sites	Yes	No	Varies	Varies
Covers every app	Yes	Yes	Yes	No
Works away from home	Yes	Yes	No	Yes
Controls incoming connections	No	Yes	No	No
No account or setup	Yes	Yes	No	Yes

Free, with no account. In exchange, Spider may route some of its web traffic through your connection while Shield is on. The Terms describe it.