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catalog.s.download.windowsupdate.com

Category: Technology

Scanned: Jul 28, 2026, 07:11 AM UTC · First seen: Jul 28, 2026 · Threat Engines: 0 / 91 · Times Scanned: 1
99 / 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 catalog.s.download.windowsupdate.com Captured Jul 28, 2026
https://catalog.s.download.windowsupdate.com
Screenshot unavailable
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29 years (windowsupdate.com)
Not Ranked - This website does not appear in the Tranco top list
Not listed (91 checked)
✓ Valid (TLS)
Fastly, Inc.
City of London, United Kingdom
Unknown
Unknown
151.101.62.172
Domain & WHOIS Information
Registrar CSC Corporate Domains, Inc.
Registered July 22, 1997 (windowsupdate.com)
Expires July 21, 2027
Name Servers ns1-205.azure-dns.com
DNSSEC Unsigned
Hosting Fastly, Inc.
This is a subdomain of windowsupdate.com. The WHOIS data above belongs to the parent domain, not to catalog.s.download.windowsupdate.com. The actual creation date of this subdomain is unknown and could be much more recent than the parent.
Reputation & Threat Check 91 security engines checked
File Scan Summary Powered by Quttera Engine
1 file scanned
No threats
1
Low Risk
0
Medium Risk
0
High Risk
0
No threats Low Risk Medium Risk High Risk
catalog.s.download.windowsupdate.com/index.html 402 B No threats
External Links & Domains
1
External Links
All Clean
0
Iframes
Clean
1
Referenced Domains
All Clean
0
Flagged Resources
None Detected
http://windowsupdate.microsoft.comNot flagged
windowsupdate.microsoft.comNot flagged
catalog.s.download.windowsupdate.com Overview

Description of catalog.s.download.windowsupdate.com

catalog.s.download.windowsupdate.com appears to be a Microsoft-operated subdomain associated with the Windows Update delivery infrastructure. Based on the hostname structure, it is likely used to distribute update catalog content or related download resources for Windows systems and Microsoft software services.

The domain sits under windowsupdate.com, which is closely associated with Microsoft's software update ecosystem. Its long registration history, corporate registrar, Microsoft-issued SSL certificate, and infrastructure details are all consistent with a large enterprise-operated service endpoint rather than a consumer-facing standalone website.

Safety Assessment for catalog.s.download.windowsupdate.com

Based on available scan data, no threats were detected at the time of this scan. The domain was flagged by 0 out of 91 security engines, the malware scan reported no flagged files, and multiple blacklist and threat-database checks indicated clean results. The referenced external link and domain also did not produce any scan alerts in the provided data.

Additional context supports a low-risk assessment: the domain has been registered for many years, uses a valid certificate issued to Microsoft Corporation, and appears to belong to a well-known software update infrastructure. No DNS-based blocklist listings were reported, and there were no signs in the provided scan data of phishing, malware delivery, or deceptive content.

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

Technical Description

The domain presents a valid SSL/TLS certificate issued to Microsoft Corporation, with expiry listed as 2026-10-18. DNSSEC appears to be unsigned, which is not uncommon but means DNS responses may not benefit from DNSSEC validation. The domain uses Azure DNS nameservers and resolves to an IP hosted by Fastly, indicating use of large-scale cloud and content-delivery infrastructure.

The server IP geolocates to the City of London, United Kingdom, though large CDN-backed services may serve content from different regions depending on routing. No technical security issues were evident from the provided scan details beyond the absence of DNSSEC signing.

HTTP Redirect Chain
No redirects detected - direct connection to destination
Website Insights
Not Ranked
Tranco Rank
Not in Top 1M
Visitors Unknown
Category: Technology
Rank History (30 days)
No rank data available
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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