leetcode.com favicon

leetcode.com

Category: Education, Information Technology

Scanned: Jul 15, 2026, 07:36 AM UTC · First seen: Jul 15, 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
Fresh scan recommended
Last scanned 10 days ago - security status may have changed since then.
Not scanned has not been scanned yet. Hit Scan Now to check it.

Scans can take up to 5 minutes to complete. Please keep this tab open - we'll redirect you to the report when it's ready.

Failed
Scan unavailable
Scan failed
Screenshot of leetcode.com Captured Jul 15, 2026
https://leetcode.com
Screenshot of leetcode.com
16 years
Very Popular - #4,511 Tranco rank (>10M monthly visitors)
Not listed (91 checked)
✓ Valid (TLS)
Cloudflare, Inc.
Toronto, Canada
cloudflare
Unknown
172.66.154.160
Domain & WHOIS Information
Registrar GoDaddy.com, LLC
Registered July 11, 2010
Expires July 11, 2034
Name Servers MELINDA.NS.CLOUDFLARE.COM
DNSSEC Signed
Hosting Cloudflare, Inc.
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
leetcode.com 248 B No threats
External Links & Domains
0
External Links
All Clean
0
Iframes
Clean
0
Referenced Domains
All Clean
0
Flagged Resources
None Detected
leetcode.com Overview

Description of leetcode.com

Leetcode.com appears to be the official website for LeetCode, an online learning and coding-practice platform focused on programming skills, algorithm challenges, and technical interview preparation. The homepage screenshot highlights features such as guided learning, exploration tools, developer-oriented content, and premium access, which aligns with its reputation as a resource for software engineering practice.

Based on the domain name, visible branding, and web-classification data, the site appears to operate in the education and information technology space. It is likely used by students, job seekers, and software developers who want to improve coding proficiency and prepare for technical assessments and interviews.

Safety Assessment for leetcode.com

The available scan results are strongly reassuring for this domain at the time of this scan. It was not flagged by any of 91 security engines, the malware scan reported no flagged files, and the checked threat-database and blacklist sources did not indicate known phishing or malware-related issues. The domain is also long-established, with an age of roughly 16 years, which generally reduces the likelihood of it being a throwaway or short-lived abusive site.

Additional context also supports a lower-risk assessment: the site has a substantial traffic presence, consistent educational and technical categorization across multiple web-classification providers, and a professional-looking homepage that matches the LeetCode brand and service offering. No suspicious external links, referenced domains, or iframes were identified in the provided scan data.

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

Technical Description

The domain is using a valid SSL/TLS certificate issued by a mainstream certificate authority, with expiry listed as 2026-09-11. It is served through Cloudflare infrastructure, with Cloudflare nameservers and a Cloudflare-hosted web server IP in the provided results. DNSSEC appears to be enabled and signed, which may help protect against certain DNS-manipulation risks.

From a technical standpoint, the visible setup appears modern and professionally maintained. No immediate security concerns were indicated in the provided scan results, although the exact supported TLS protocol versions were not specified in the data.

HTTP Redirect Chain
307 https://leetcode.com/
403 https://leetcode.com/
Website Insights
#4,511
Tranco Rank
Very Popular
Visitors >10M/mo
Category: Education, Information Technology
Rank History (30 days)
Jun 8 Jul 14
No cookies data available
Dispute This Score For website owners
Believe this score is inaccurate?
If you are the website owner and believe the scan results contain errors or false positives, you can submit a dispute for manual review. Our team typically responds within 1-2 business days.
You will be asked to verify your email before the dispute can be processed.
By submitting this form, you confirm that the information provided is accurate. Disputes are reviewed manually and results may take up to 48 hours to update.
One more step…
To submit your dispute for leetcode.com, please click the verification link we just emailed you. Once verified, we'll review it within 1-2 business days.
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.

Share your experience with this website. Was it safe? Did you encounter any issues?