Kaspersky
Web Filter

Kaspersky Web Filter is a cloud-based service that enables software vendors, service providers, gateway vendors, and application developers to classify URLs, block web-based threats, and enforce content-access policies through a lightweight integration. It helps third-party solutions protect users from phishing, malicious websites, spam-related resources, and inappropriate or non-compliant web content while supporting multiple integration models for desktop apps, mobile apps, network-filtering tools, and gateways.
Powered by Kaspersky’s global cloud infrastructure, automated classification technologies, Kaspersky Security Network intelligence, and expert human analysis, the service delivers fast URL lookups, constantly updated categories, and broad web coverage, so your product can make confident access-control decisions in real time.

Usage Scenarios

Embed web protection into your own product

Add URL reputation and content categorization to security applications, endpoint agents, browser tools, mobile apps, gateways, routers, or cloud services.

Enable parental control and safe browsing

Power family-safety and child-protection features by blocking inappropriate categories and applying age-appropriate browsing policies.

Enhance existing filtering engines

Use Kaspersky intelligence to improve your own web filtering, security gateway, ISP, hosting, or anti-spam solution with high-quality URL classification and threat verdicts.

Cloud/SaaS platforms with user uploads

Any product that hosts or routes user content needs “clean platform” trust:

file sharing & collaboration,
managed email providers,
customer support platforms that accept attachments,
HR/recruiting portals, fintech onboarding portals, etc.

Key Features of Kaspersky Web Filter

More than 95 constantly updated URL categories

for precise policy enforcement and flexible product logic

Threat protection verdicts

to help block phishing, malicious websites, and other unsafe resources

Cloud-based updates 24/7/365

combining automated routines with Kaspersky analyst expertise

Lightweight API integration

designed for fast implementation and a small footprint

Batch request support

allowing more than one URL to be submitted per request

High-scale infrastructure

with stated capacity to process more than 100 billion requests per day

Global language coverage

with content analysis performed across dozens of widely used languages

Dedicated technical and business support

including qualified 24/7 technical assistance

Functionality

Kaspersky Web Filter accepts URLs in different formats, reducing the need for preliminary URL normalization on the partner side. For each submitted URL, the service returns a reputation verdict and one or more matching categories, allowing your application to decide whether to allow, block, warn, log, or apply a custom policy.

URL category data is hosted in Kaspersky’s distributed cloud infrastructure. Classification is supported by web crawling, Kaspersky expert systems, content analysts, heuristics, partner intelligence, and telemetry from Kaspersky Security Network. This architecture helps partners keep pace with changing web content, newly created malicious domains, phishing campaigns, and dynamic URLs without maintaining a large in-house categorization operation.

The result is a developer-friendly service that combines simple integration with enterprise-grade web intelligence – helping you bring safer browsing, policy control, and threat prevention capabilities to market faster.

Need help to take the next step?

If you wish to know more, please click the button below and tell us that you require more information about Kaspersky Anti-Spam SDK. Our representative will get in touch with you shortly.