Freedom251 › Internet Filtering Software
InterSafe WebFilter
What InterSafe WebFilter is
InterSafe WebFilter is a paid, gateway-based web and URL filtering product for businesses. It controls client computers’ web access through a URL database, blocks malicious sites and supports prevention of information leaks, virus infection and private web use. Administrators can set policies by department, user or group, including allowing browsing while blocking posts or uploads. ALSI reports theoretical classification coverage above 99% for websites typically accessed by organisations. The database has 149 categories, more than 10 billion registered web contents as of November 2025, and is distributed at least three times daily. Optional FileSanitizer supports over 200 file types and uses more than 30 anti-malware engines. Supported integrations include directory services, proxy products, Google Workspace, Microsoft 365 and Slack. Platforms include Windows Server, Red Hat Enterprise Linux, Chrome, Microsoft Edge, proxy and ICAP environments. The listed plan costs ¥50,000 a year for 1–5 terminals, tax-exclusive, with server installation required. There is no free plan, but a 30-day evaluation key is available.
Who it suits
It suits businesses needing policy-based web filtering across supported server, browser, proxy or ICAP environments, with reporting and directory integrations.
What it does well
- Policies can target departments, users or groups
- Database updates at least three times daily
- Custom blocklists and safe-search controls
- 30-day evaluation key available
- Supports Windows Server and Red Hat Enterprise Linux
What to know first
- No free plan
- 1–5 terminal plan requires server installation
- ARM-based CPUs are not supported
- License counts all internet-connected terminals
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| InterSafe WebFilter (1–5 terminals, 1-year contract) | 1-year contract; price is tax-exclusive · 1–5 internet-connected terminals · server installation required · includes software, restricted-URL database use and updates, and support | ¥50,000 a year |
As alsi.co.jp lists them, read 8 Oct 2026. The maker's own page has the final word.
Verdict
InterSafe WebFilter provides granular access policies, a large categorized URL database and multiple enterprise integrations. Buyers should account for server requirements, terminal-based licensing and the paid-only model.
Facts from InterSafe WebFilter's own pages
- Database
- The feature list states that the database has 149 categories, over 10 billion registered web contents as of November 2025, and is distributed at least three times per day. · alsi.co.jp, 8 Oct 2026
- File sanitization
- The optional InterSafe FileSanitizer Powered by OPSWAT supports over 200 file types and uses more than 30 anti-malware engines, according to the product page. · alsi.co.jp, 8 Oct 2026
- Filtering controls
- Administrators can configure policies by department, user, or group, including allowing browsing while blocking posts or uploads. · alsi.co.jp, 8 Oct 2026
- Founded
- 1990 · alsi.co.jp, 28 Sept 2026
- Headquarters
- Tokyo, Japan · alsi.co.jp, 28 Sept 2026
- Integrations
- The supported integrations listed include Active Directory, Oracle Directory Server, OpenLDAP, Blue Coat, Squid, A10 Thunder, BIG-IP, Google Workspace, Microsoft 365, and Slack. · alsi.co.jp, 8 Oct 2026
- Licensing limit
- Licensing is based on the total number of internet-connected terminals using WebFilter, not simultaneous connections; server-free licensing may be available from 500 users. · alsi.co.jp, 8 Oct 2026
- Manufacturer
- The manufacturer’s company page identifies Alps System Integration Co., Ltd. and gives its headquarters as Ota-ku, Tokyo. · alsi.co.jp, 8 Oct 2026
- Mobile browser use
- The page lists Safari on iOS/iPadOS and Chrome on Android for use through a Wi-Fi proxy, for HTTP and HTTPS only. · alsi.co.jp, 8 Oct 2026
- Product
- InterSafe WebFilter is a gateway-based web and URL filtering product for businesses that controls client PCs’ web access using a URL database. · alsi.co.jp, 8 Oct 2026
- Reporting
- InterSafe LogDirector has a free Basic edition and a paid Professional edition for access-log reporting and analysis. · alsi.co.jp, 8 Oct 2026
- Support
- The price-list notes say support is provided by telephone and email, and ALSI’s support page directs technical questions to its support inquiry form. · alsi.co.jp, 8 Oct 2026
- Supported server platforms
- The listed server operating systems are Windows Server 2016, 2019, 2022, and 2025, and Red Hat Enterprise Linux 8 and 9; ARM-based CPUs are not supported. · alsi.co.jp, 8 Oct 2026
- Threat protection
- The product blocks access to malicious sites and supports prevention of information leaks, virus infection, and private web use. · alsi.co.jp, 8 Oct 2026
- Trial
- ALSI offers an evaluation key that allows use of the complete database for 30 days. · alsi.co.jp, 8 Oct 2026
- URL classification
- ALSI says its URL database and Intelligent Web Classifier Cloud achieve a theoretical classification coverage rate of over 99% for websites accessed by typical organizations. · alsi.co.jp, 8 Oct 2026
Where InterSafe WebFilter stands on Freedom251
- Internet Filtering Software#31 of 65