usaco.org favicon

usaco.org

Category: Education, Sports

Scanned: Jul 16, 2026, 11:49 PM UTC · First seen: Jul 16, 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 usaco.org Captured Jul 16, 2026
https://usaco.org
Screenshot of usaco.org
29 years
Moderately Popular - #352,195 Tranco rank (100K–1M monthly visitors)
Not listed (91 checked)
✓ Valid (TLS)
CloudFlare, Inc.
Toronto, Canada
cloudflare
Unknown
188.114.97.0
Domain & WHOIS Information
Registrar Register.com - Network Solutions, LLC
Registered September 5, 1996
Expires September 4, 2029
Name Servers andronicus.ns.cloudflare.com
DNSSEC Unsigned
Hosting CloudFlare, Inc.
Reputation & Threat Check 91 security engines checked
File Scan Summary Powered by Quttera Engine
2 files scanned
No threats
2
Low Risk
0
Medium Risk
0
High Risk
0
No threats Low Risk Medium Risk High Risk
usaco.org/# 5.1 KB No threats
usaco.org/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=a1c4e6649ce20a20 212.5 KB No threats
External Links & Domains
1
External Links
All Clean
0
Iframes
Clean
1
Referenced Domains
All Clean
0
Flagged Resources
None Detected
http://usaco.org/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray%3Da1c4e6649ce20a20Not flagged
usaco.orgNot flagged
usaco.org Overview

Description of usaco.org

usaco.org appears to be the website of the USA Computing Olympiad, an educational program focused on competitive programming and computer science contests for students in the United States. The page title, navigation items such as Overview, Details / FAQ, Training, History, and Resources, and the homepage content about finalists, contest schedules, and international olympiad results all suggest that the site supports academic competition, training, and participant account access.

Based on the domain name, page content, and third-party categorization data, the site appears to serve students, educators, and competition participants interested in informatics and algorithmic problem solving. It appears to be an established educational resource rather than a commercial platform, with long-standing domain registration history and content centered on contest administration, announcements, and learning materials.

Safety Assessment for usaco.org

The available scan results are strongly reassuring for this domain. At the time of this scan, 0 out of 91 security engines flagged the site, the malware scan reported no flagged files, and the checked threat databases did not indicate phishing, malware distribution, or other content-related blacklist issues. Multiple web-classification sources also categorized the domain in education-related or informational categories, which is consistent with the visible homepage content.

Additional context also supports a lower-risk assessment: the domain has been registered for many years, shows a real functioning website with educational content, and does not display common warning signs such as deceptive branding, fake storefront behavior, or suspicious redirects in the provided evidence. The only visible challenge-related URL appears to be part of normal site protection infrastructure rather than a malicious indicator.

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

Technical Description

The site is served over HTTPS with a valid SSL/TLS certificate issued by a mainstream certificate authority, with expiry listed in August 2026. It appears to be behind Cloudflare infrastructure, using Cloudflare nameservers and a Cloudflare-hosted edge IP in Toronto, which may provide CDN, caching, and protective filtering functions.

DNSSEC appears to be unsigned, which is not uncommon but means DNS responses do not benefit from DNSSEC validation. No major technical security concerns were evident from the provided scan data, and blacklist checks were clean at the time of review.

HTTP Redirect Chain
No redirects detected - direct connection to destination
Website Insights
#352,195
Tranco Rank
Moderately Popular
Visitors ~100K–1M/mo
Category: Education, Sports
Rank History (30 days)
Jun 8 Jul 16
2 cookies detected
Essential2
Analytics0
Advertising0
Social0
2 1st party cookies
0 3rd party (trackers)
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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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