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onetag-sys.com

Category: Ads, Analytics

Scanned: May 10, 2026, 10:00 PM UTC · First seen: May 10, 2026 · Threat Engines: 0 / 92 · Times Scanned: 1
97 / 100 Trust Score Based on scan findings at the time of analysis
No Threats Found
0 - High Risk50 - Moderate100 - No Threats
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Screenshot of onetag-sys.com Captured May 10, 2026
https://onetag-sys.com
Screenshot of onetag-sys.com
11 years
Extremely Popular - #814 Tranco rank (>100M monthly visitors)
Not listed (92 checked)
✓ Valid (TLS)
OVH GmbH
London, United Kingdom
Unknown
Unknown
51.89.9.251
Domain & WHOIS Information
Registrar GoDaddy.com, LLC
Registered April 5, 2015
Expires April 5, 2027
Name Servers NS11.CONSTELLIX.COM
DNSSEC Unsigned
Hosting OVH GmbH
Reputation & Threat Check 92 security engines checked
File Scan Summary Powered by Quttera Engine
3 files scanned
No threats
3
Low Risk
0
Medium Risk
0
High Risk
0
No threats Low Risk Medium Risk High Risk
onetag-sys.com/index.html 923 B No threats
onetag-sys.com/# 923 B No threats
onetag-sys.com/robots.txt 923 B No threats
External Links & Domains
3
External Links
All Clean
0
Iframes
Clean
2
Referenced Domains
All Clean
0
Flagged Resources
None Detected
http://www.onetag.com/Not flagged
http://www.onetag.com/privacy/Not flagged
https://onetag-cdn.com/media/1810ab0f-23f9-4cc9-bcf6-3436c65530ed.pngNot flagged
onetag-cdn.comNot flagged
www.onetag.comNot flagged
onetag-sys.com Overview

Description of onetag-sys.com

onetag-sys.com appears to be an infrastructure or support domain associated with OneTag, an advertising technology company. The page title and screenshot identify it as the "OneTag Advertising System," and the visible links point users to the main OneTag website and its privacy policy. Based on the domain name, page content, and classification data, this domain likely serves a backend, campaign-delivery, or system-related role within a broader digital advertising platform.

Multiple web-classification sources categorize the site in advertising, analytics, marketing, or information technology-related segments. Its very high traffic ranking compared with most domains also suggests it may be part of an established ad-tech ecosystem rather than a newly created standalone site. The minimal landing page design appears consistent with a utility or system endpoint rather than a consumer-facing website.

Safety Assessment for onetag-sys.com

At the time of this scan, no security engines reported detections for onetag-sys.com, with 0 out of 92 engines flagging the domain. Malware scanning also indicated a clean result, with no flagged files, no flagged external links, and no flagged referenced domains. In addition, the domain was reported clean across the checked blacklist and threat-database sources.

Other contextual signals are also favorable. The domain has been registered for about 11 years, which generally reduces the likelihood of it being a short-lived abusive domain, and the visible content aligns with the stated purpose of an advertising system tied to the OneTag brand. The page does not show common signs of phishing, fake storefront behavior, or deceptive prompts based on the available screenshot.

Based on available data, no threats were detected at the time of this scan.

Technical Description

The domain uses a valid SSL/TLS certificate issued by DigiCert, with validity extending to 2027-01-22. It resolves to an IP hosted by OVH GmbH in London, United Kingdom, and uses Constellix nameservers, which suggests professionally managed DNS infrastructure. The exact web server software and negotiated protocol version were not identified in the provided scan data.

DNSSEC appears to be unsigned, which is not uncommon but does mean DNS responses do not benefit from DNSSEC validation. No technical indicators of malware hosting, malicious iframes, or suspicious outbound references were identified in the supplied scan results.

HTTP Redirect Chain
No redirects detected - direct connection to destination
Website Insights
#814
Tranco Rank
Extremely Popular
Visitors >100M/mo
Category: Ads, Analytics
Rank History (30 days)
Mar 30 May 9
No cookies data available
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This report was generated automatically and is provided for informational purposes only. Results are based on a point-in-time scan and may contain false positives or incomplete data. This does not constitute a security audit or certification. No vendor in the market can guarantee a 100% detection rate. If you believe this report is inaccurate, please submit a dispute.

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