---
title: DNSFilter Secures $30M Series A to Step Up Fight Against DNS-Based Threats | Arthur Ventures
description: DNSFilter says it will block more than 1.1 million threats daily by the end of 2021.
---

[![avlogo_color (1)](https://www.arthurventures.com/hubfs/avlogo_color%20(1).png) ](https://www.arthurventures.com)

- [ Companies ](https://www.arthurventures.com/companies)
- [ Team ](https://www.arthurventures.com/team)
- [ News ](https://www.arthurventures.com/news-2026)

[Portfolio News](https://www.arthurventures.com/news/portfolio-news)

# DNSFilter Secures $30M Series A to Step Up Fight Against DNS-Based Threats

 July 21, 2021 · 1 min read

<https://twitter.com/intent/tweet?url=> <https://www.facebook.com/sharer/sharer.php?u=> <https://www.linkedin.com/sharing/share-offsite/?url=>

[![avlogo_color (1)](https://www.arthurventures.com/hs-fs/hubfs/avlogo_color%20(1).png?width=1210&height=428&name=avlogo_color%20(1).png) ](https://www.arthurventures.com)

- [ Companies ](https://www.arthurventures.com/companies)
- [ Team ](https://www.arthurventures.com/team)
- [ News ](https://www.arthurventures.com/news-2026)
- [ Legal ](https://www.arthurventures.com/legal-disclaimer)
- [ LP Login ](https://arthurventures.arkpes.com/login)

250 Nicollet Mall, Suite 750, Minneapolis, MN 55401

© 2026 Arthur Ventures Management LLC

```json
{
  "@context" : "https://schema.org",
  "@type" : "BlogPosting",
  "author" : {
    "@type" : "Person",
    "name" : "Anna Talerico",
    "url" : "https://www.arthurventures.com/news/author/anna-talerico"
  },
  "dateModified" : "2025-09-11T13:40:38.061Z",
  "datePublished" : "2021-07-21T09:36:00.000Z",
  "headline" : "DNSFilter Secures $30M Series A to Step Up Fight Against DNS-Based Threats",
  "mainEntityOfPage" : {
    "@id" : "https://www.arthurventures.com/news/dnsfilter-secures-30m-series-a-to-step-up-fight-against-dns-based-threats",
    "@type" : "WebPage"
  },
  "publisher" : {
    "@type" : "Organization",
    "logo" : {
      "@type" : "ImageObject",
      "url" : "https://www.arthurventures.com/hubfs/avlogo_color%20(1).png"
    },
    "name" : "Arthur Ventures"
  }
}
```