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fastclick.net

Mar 18th 2027 07:53 PM

MarkMonitor Inc.

unsigned

No

Feb 14th 2026 09:35 AM

Fastclick.net is a domain that appears to be associated with a company that provides online advertising services. It's been registered since 2007 and is managed by MarkMonitor Inc., but its DNSSEC status is unsigned, and it has restrictive transfer settings, which may indicate potential security risks.

Data on this page is collected by cside's crawler, which monitors third-party scripts across the public web.

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Helpful
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Occasionally seen
Vendor

Epsilon

Category: identity

Description

Epsilon is a marketing data and technology company providing consumer analytics, identity resolution, and advertising services. Its FastClick/PubCID infrastructure provides publisher common IDs for header bidding and cross-domain identity.

AI Review

Epsilon's scripts across its domains exhibit a strong focus on user interaction tracking and analytics, aimed at enhancing functionalities during e-commerce activities, particularly on payment pages. The data collection is extensive, including sensitive details such as email addresses, page referrer data, user behavior patterns, and device specifics like screen dimensions. This creates potential risks regarding privacy as tracking mechanisms operate in contexts where users enter payment information. The dual functionality for analytics and fraud prevention raises concerns about data minimization and user consent, reflecting the tension between operational needs and user privacy rights. Additionally, the scripts implement complex analytics through interactions with third-party services. Tracking pixels and iframes often communicate with various external domains, which introduces a broader surface area for supply chain vulnerabilities. While no alerts signal immediate risk, the reliance on multiple tracking and analytics services necessitates ongoing vigilance to protect user data from potential breaches or misuse. The absence of recent alerts may indicate stable behavior, but the inherent risks associated with user tracking create the need for continued scrutiny and adherence to strict data handling standards, especially in a PCI context.

Script hostnames

fastclick.net ctnsnet.com dotomi.com
WHOIS Information
Registrar MarkMonitor Inc.
Registration: March 18th, 2000
Expires: March 18th, 2027
Updated: February 14th, 2026
Nameservers
eur2.akam.net. 95.100.173.64
usw1.akam.net. 23.61.199.66
ns1-100.akam.net. 193.108.91.100
asia9.akam.net. 95.100.175.65
eur3.akam.net. 95.100.174.64
eur7.akam.net. 23.74.25.65
use4.akam.net. 23.211.133.65
ns1-27.akam.net. 193.108.91.27
Meta Tags

No meta tags found.

fastclick.net is one of thousands of third-party scripts on the web.

Most sites run dozens of third-party scripts and can't say what each one does. cside monitors every script on your site and catches the ones that change or turn malicious.

DNS Records
Hostname Type TTL Priority Content
fastclick.net NS 172800
eur2.akam.net.
fastclick.net NS 172800
usw1.akam.net.
fastclick.net NS 172800
ns1-100.akam.net.
fastclick.net NS 172800
asia9.akam.net.
fastclick.net NS 172800
eur3.akam.net.
fastclick.net NS 172800
eur7.akam.net.
fastclick.net NS 172800
use4.akam.net.
fastclick.net NS 172800
ns1-27.akam.net.
fastclick.net MX 1800 10
.
fastclick.net TXT 1800
"v=spf1 -all"
fastclick.net TXT 1800
"_globalsign-domain-verification=CiRLSmRC--b_HE-2PThXfsxiA2s7yefB8f-5Epbd_C"
fastclick.net SOA 1800
ns1.cnvr.net. hostmaster.cnvr.net. 2026082400 7200 900 604800 3600

FAQ

Frequently Asked Questions

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This domain is analyzed as part of cside's domain directory to identify third-party scripts and their purposes. The summary provides information about what services, tools, or scripts this domain hosts, helping website owners understand which third-party services are being loaded on their sites.

The risk score is calculated based on multiple security factors including SSL certificate validity, DNSSEC status, domain registration details, and historical security data. A higher score indicates lower risk, while a lower score suggests potential security concerns that should be investigated.

The SSL certificate information shows whether the domain uses HTTPS encryption, when the certificate was issued, when it expires, and who issued it. This helps verify the domain's security posture and identify potential certificate-related vulnerabilities that could affect your website's security.

Third-party script domains can be compromised or used maliciously. By monitoring domain information like registration details, SSL certificates, and DNS records, you can identify suspicious changes, expired certificates, or domains that may pose security risks to your website and users.

Domain information is regularly scanned and updated to provide the most current security intelligence. The last scanned timestamp shows when the most recent analysis was performed, ensuring you have up-to-date information about the domain's security status.

If you identify a high-risk domain loading scripts on your website, you should investigate why it's being used, verify its legitimacy, and consider removing or replacing it if it's not essential. Use cside's platform to monitor and block suspicious third-party scripts to protect your users from potential security threats.

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