Estonia-based Blackwall, which builds net visitors safety instruments for internet hosting suppliers, stated on Tuesday that it has raised $100 million at a $2.2 billion valuation. It builds merchandise that helps web sites grapple with the skyrocketing quantity of bot visitors, particularly AI brokers.
The Sequence C was led by AVP, with participation from present buyers Daybreak Capital, MMC Ventures and Tera Ventures. Blackwall’s government chairman, Roi Carthy, instructed TechCrunch this funding spherical elevated the corporate’s valuation by 4 instances since its previous fundraise in 2025.
Over the previous few years, net infrastructure corporations like Cloudflare, Akamai, Imperva and Blackwall have discovered themselves in an more and more invaluable however tough house: They’re on the frontlines, coping with DDoS assaults, indiscriminate scraping, botnet farms, malicious requests, and lately, even swarms of AI agents going rogue. But it surely’s additionally an opportunity to make a killing by serving to internet hosting suppliers and web sites cope with all the possibly undesirable visitors.
Blackwall, nonetheless, isn’t taken with competing with the bigwigs in its house. As a substitute of promoting its platform on to web sites, the corporate makes use of a “channel” method, working with webhosting, managed service and cloud suppliers to grasp their wants, after which handing over a bundle of instruments which they will customise. These suppliers can then supply Blackwall’s safety instruments to their very own purchasers beneath their very own branding and retain management of that relationship.
There’s cash in it for either side. Co-founder and CEO Nikita Rozenberg instructed TechCrunch that internet hosting corporations can combine and match safety parts to construct their very own resolution based on what they wish to present to their finish clients, set the costs, and share a lower of the income with Blackwall. The corporate initially offers its clients a free tier exhibiting the visitors and threats hitting their community, however prices for any safety or instruments to deal with the threats.
Along with offering providers like risk intelligence, certificates administration, DDoS safety and visitors routing, Blackwall examines its clients’ net visitors to distinguish precise guests and legit AI brokers from malicious bots, intruders, and disruptive visitors. Rozenberg stated the corporate makes use of strategies like digital fingerprinting to determine the software program sending a request — for instance, Microsoft Workplace or Codex — to filter out bots. As well as, the corporate makes use of its personal AI fashions at clients’ endpoints to research the intent and habits of the requests coming in to distinguish brokers despatched by an individual for an actual request versus a malicious bot.
Within the coming years, Rozenberg sees a giant alternative rising as AI brokers start interacting and transacting with web sites on behalf of their customers. This could finally require methods to handle which brokers get entry, and on what phrases, and the way they’re approved to make funds.
Blackwall isn’t alone in eyeing that chance. Cloudflare’s AI Crawl Control lets web site house owners enable or block particular person AI crawlers, and there’s additionally an choice to cost them for entry. However Rozenberg argues that Blackwall’s benefit lies in letting internet hosting suppliers supply such visitors administration providers themselves as an alternative of handing the client relationship to a different safety supplier.
Blackwall plans to make use of the funding to increase its operations throughout North America, Europe, Asia-Pacific and the Center East, and develop extra safety tooling for internet hosting, cloud and managed service suppliers.
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