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E2Guardian vs FlashStart: catalog facts
E2Guardian	FlashStart
Free Free to download and use.	Paid Paid licences with a free trial; prices are given on request.
Linux, Self-hosted	Web
Proxy, transparent and ICAP modes Filters on content, not only domain names	Category, user, device and schedule-based content filtering Malware and phishing blocking at the DNS level
Needs a Linux server and proxy configuration knowledge Filtering encrypted traffic requires extra setup	Pricing is not published on the homepage Aimed mainly at businesses, ISPs and organisations
Self-hosted	Hosted service
Closed source	Closed source
License not stated	License not stated
No account needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.