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Labuladong.online Scam Check: Blacklist Warning

August 1, 2026 at 1:29 PM
Suspicious Website
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Table of Contents
Danger Zone
Risky Territory
Caution Advised
Trusted but Verify
Safe & Secure

Labuladong → Safety Check

First checked August 1, 2026 at 1:29 PM
Website content and technical signals analyzed
Method: automated checks.
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Suspicious Website Gridinsoft currently classifies this site as Suspicious Website. The report highlights 1 blacklist detections, no established public user-review history, and heuristic security signals. These risks are driven by active warning signals despite the site's longer domain history.
Trust signal radar Normalized trust signals for labuladong.online Domain Maturity: 1292 days Domain Maturity Warning Cleanliness: 1 detections Warning Cleanliness Safety Level: 3 negative tags, 1 warning signal Safety Level Positive Signals: 2 positive signals Positive Signals Popularity: Tranco rank 4,112,087 Popularity Trust Zone: .online Trust Zone Operational Signals: 1 detected services Operational Signals Location Credibility: Hosting country CN Location Credibility
Figure 1. Trust signal radar for labuladong.online. Larger shaded area indicates stronger trust signals.

How we scored labuladong.online

On-page mentions:
Artificial Intelligence, Guides, Programming
Tech signals:
React Platform, Cloudflare Browser Insights, Sonner Notification Component, Next.js Framework, GitHub Profile
Negative signals:
  • security-provider warnings
  • a malware or phishing blacklist detection (1)
  • heuristic signals associated with scam
  • automated caution checks
  • limited independent reputation data
Positive signals:
Context signals:
  • standard payment methods
  • content related to AI-related content; educational content and guides
35 /100
Trust Score
3.5 years
Domain Age
CN
Location
1
External provider warnings
Last checked August 1, 2026 at 1:29 PM by Gridinsoft Trust Model v2.5.1

What is Labuladong?

According to its current page title, labuladong.online presents itself as “Labuladong Algo Notes - Algorithms, AI Coding & Programming Language Tutorials”. The sections below evaluate the site-specific reputation and technical findings.

This domain was registered April 4, 2023 at 5:47 AM through the company Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn) and ownership information is not publicly available.
For complaint

Is labuladong.online safe?

Use caution with labuladong.online. Its current Gridinsoft trust score is 35/100; review the site-specific findings below before use.

Why is labuladong.online marked "Suspicious Website"?

Gridinsoft's current assessment of labuladong.online is based on automated caution checks and heuristic signals associated with scam. The listed status means the domain currently appears in Gridinsoft's own Threat List; it is not a consensus of external providers. 1 of 26 publicly displayed security sources report a warning.

Labuladong Digital Footprints

A structured view of the site's detected themes, page signals, and related online footprint elements.

Reliable Payment Method

Payment processing utilizes established and secure payment systems including major credit cards, PayPal, or other recognized financial service providers. These payment methods typically offer fraud protection and dispute resolution mechanisms to safeguard consumers.

Registration Form

Automated page analysis detected form or data-entry functionality on labuladong.online. Forms can involve user-submitted information, so verify ownership and privacy terms before entering data.

Artificial Intelligence

labuladong.online references AI-related technologies, features, or product positioning in its content.

Guides
Programming
React Platform

This website is built using React, a popular JavaScript library for creating interactive user interfaces.

Multilanguage

The website provides multi-language support, demonstrating international accessibility and commitment to diverse user populations. Multi-language implementation typically indicates professional development standards and global operational scope, representing a positive trust indicator.

Google Tag Manager

The labuladong.online website uses Google Tag Manager to add and update tracking tags on its website.

Cloudflare Browser Insights

This website is proxied through Cloudflare's CDN/network and has Cloudflare Browser Insights enabled.

Sonner Notification Component
Webpack Module Bundler
Next.js Framework
Social Media Links

The presence of social media links on the website indicates that it references social media accounts. This signal alone does not confirm ownership or authenticity of those profiles.

GitHub Profile

labuladong.online links to a GitHub profile or public repository associated with the project. This is a useful transparency signal, especially when the account has public activity.

Heuristic - Scam
Heuristic Risk
China
Long Term Domain

This site is registered for an extended period, which is generally a positive continuity signal.

Listed by Gridinsoft

Gridinsoft Internet Security classified this site as unsafe. As a VirusTotal partner, our detections contribute to broader protection across tools and browsers.

Color Guide
  • Requires special attention Marks high-risk findings that should be reviewed first.
  • Exercise caution Highlights areas involving user data, payments, or permissions.
  • Positive indicators Shows trust signals that support the site's reliability.
  • Neutral General context that does not increase or reduce risk on its own.

External provider warnings: 1/26 Suspicious Website

This section shows what independent external security sources say about this site.

A warning appears when one or more sources report malware, phishing, abuse, or other safety concerns. Each row shows the source and its verdict.

If no source reports a warning, the site is shown as clear in this section.

CRDF
Malicious

External provider results for Labuladong.online, last checked July 27, 2026. — VirusTotal

Domain Information

Created April 4, 2023 at 5:47 AM Updated: August 31, 2023 at 5:07 PM · Expires: April 4, 2033 at 11:59 PM
Domain Age 3.5 years
Registrant CN (China)
Registrar Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn) IANA ID: 1599
Abuse Email [email protected]
Domain Status Ok DNSSEC: SIGNEDDELEGATION
Top Level Domain .online Generic TLD

Technical Details

IP Address 172.67.177.235
Hosting Provider AS13335 Cloudflare, Inc. San Francisco, California, US
SSL Certificate WE1 SSL certificate not verified TLSv1.3 · from June 21, 2026 at 3:16 PM · to September 19, 2026 at 4:16 PM
Name Servers vip1.alidns.com
vip2.alidns.com

Content from the analyzed website

Quoted for security analysis. These statements belong to the source website and are not endorsed by Gridinsoft.

Original page title Labuladong Algo Notes - Algorithms, AI Coding & Programming Language Tutorials
Original description A comprehensive programming education platform with 400+ algorithm tutorials, AI coding guides, and language fundamentals with visualization and practice systems
Available languages
Profile
DonglaiFu · labuladong · 6,905 followers · 28 repos · 8.4 years
Mentioned hosts (10)
github.com static.cloudflareinsights.com labuladong.online c.clarity.ms x.clarity.ms scripts.clarity.ms www.clarity.ms analytics.google.com www.googletagmanager.com stats.g.doubleclick.net

Security Analysis

Detection Signatures These signatures are used to generate the security fingerprint below.
Reliable Payment Method Registration Form Artificial Intelligence Guides Programming React Platform Webpack Module Bundler Next.js Framework
Verified Services This domain has been verified by the following legitimate services and organizations, confirming authentic ownership and proper email security configuration.
Google Verification Domain ownership verified by Google.
Security Fingerprint Unique identifier based on site analysis
sierra-hawaii-twenty-iowa

How to block Labuladong.online?

Our Anti-Malware can automatically block access to labuladong.online if it is flagged as malicious.

  1. Install and run the protection.
  2. The program will block flagged domains and remove related threats.

Exclusion

If you believe labuladong.online is safe, you can add it to the exclusion list:

  1. Open Gridinsoft Anti-Malware → Tools → Ignore List.
  2. Go to the Internet tab and add labuladong.online.

See detailed instructions for more options.

Are You the Owner?

If you own Labuladong.online and want to challenge the trust score, please submit a review request via portal.gridinsoft.com. There you can claim your profile and add verified company/contact details. If you cannot access the portal, email legal(at)gridinsoft.com with proof of legitimacy and contact details. We never charge website owners for reviews or reconsideration requests. For more information, please review our Disclaimer.

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Your score for labuladong.online
35
points /100
The score is based on a 1-100 scale, with 100 being the most reputable.

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