usaco.org
Category: Education, Sports
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.
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