Is Html5Lib Safe?
Html5Lib — Nerq Trust Score 52.2/100 (D grade). Based on analysis of 1 trust dimensions, it is has notable safety concerns. Last updated: 2026-05-02.
Use Html5Lib with some caution. Html5Lib is a software tool with a Nerq Trust Score of 52.2/100 (D), based on 3 independent data dimensions. Below the recommended threshold of 70. Data sourced from multiple public sources including package registries, GitHub, NVD, OSV.dev, and OpenSSF Scorecard. Last updated: 2026-05-02. Machine-readable data (JSON).
Is Html5Lib safe?
CAUTION — Html5Lib has a Nerq Trust Score of 52.2/100 (D). It has moderate trust signals but shows some areas of concern that warrant attention. Suitable for development use — review security and maintenance signals before production deployment.
What is Html5Lib's trust score?
Html5Lib has a Nerq Trust Score of 52.2/100, earning a D grade. This score is based on 1 independently measured dimensions including security, maintenance, and community adoption.
What are the key security findings for Html5Lib?
Html5Lib's strongest signal is compliance at 100/100. No known vulnerabilities have been detected. It has not yet reached the Nerq Verified threshold of 70+.
What is Html5Lib and who maintains it?
| Author | James Graham |
| Category | Uncategorized |
| Source | https://pypi.org/project/html5lib/ |
Regulatory Compliance
| EU AI Act Risk Class | Not assessed |
| Compliance Score | 100/100 |
| Jurisdictions | Assessed across 52 jurisdictions |
What Is Html5Lib?
Html5Lib is a software tool in the uncategorized category: HTML parser based on the WHATWG HTML specification. Nerq Trust Score: 52/100 (D).
Nerq independently analyzes every software tool, app, and extension across multiple trust signals including security vulnerabilities, maintenance activity, license compliance, and community adoption.
How Nerq Assesses Html5Lib's Safety
Nerq's Trust Score is calculated from 13+ independent signals aggregated into five dimensions. Here is how Html5Lib performs in each:
- Compliance (100/100): Html5Lib is broadly compliant. Assessed against regulations in 52 jurisdictions including the EU AI Act, CCPA, and GDPR.
The overall Trust Score of 52.2/100 (D) reflects the weighted combination of these signals. This is below the Nerq Verified threshold of 70. We recommend additional due diligence before production deployment.
Who Should Use Html5Lib?
Html5Lib is designed for:
- Developers and teams working with uncategorized tools
- Organizations evaluating AI tools for their stack
- Researchers exploring AI capabilities in this domain
Risk guidance: Html5Lib is suitable for development and testing environments. Before production deployment, conduct a thorough review of its security posture, review the specific trust signals above, and consider whether a higher-scored alternative meets your requirements.
How to Verify Html5Lib's Safety Yourself
While Nerq provides automated trust analysis, we recommend these additional steps before adopting any software tool:
- Check the source code — Review the repository security policy, open issues, and recent commits for signs of active maintenance.
- Scan dependencies — Use tools like
npm audit,pip-audit, orsnykto check for known vulnerabilities in Html5Lib's dependency tree. - Review permissions — Understand what access Html5Lib requires. Software tools should follow the principle of least privilege.
- Test in isolation — Run Html5Lib in a sandboxed environment before granting access to production data or systems.
- Monitor continuously — Use Nerq's API to set up automated trust checks:
GET nerq.ai/v1/preflight?target=html5lib - Review the license — Confirm that Html5Lib's license is compatible with your intended use case. Pay attention to restrictions on commercial use, redistribution, and derivative works. Some AI tools use dual licensing or have separate terms for enterprise customers that differ from the open-source license.
- Check community signals — Look at the project's issue tracker, discussion forums, and social media presence. A healthy community actively reports bugs, contributes fixes, and discusses security concerns openly. Low community engagement may indicate limited peer review of the codebase.
Common Safety Concerns with Html5Lib
When evaluating whether Html5Lib is safe, consider these category-specific risks:
Understand how Html5Lib processes, stores, and transmits your data. Review the tool's privacy policy and data retention practices, especially for sensitive or proprietary information.
Check Html5Lib's dependency tree for known vulnerabilities. Tools with outdated or unmaintained dependencies pose a higher security risk.
Regularly check for updates to Html5Lib. Security patches and bug fixes are only effective if you're running the latest version.
If Html5Lib connects to external APIs or services, each integration point is a potential attack surface. Audit all third-party connections, verify that data shared with external services is minimized, and ensure that integration credentials are rotated regularly.
Verify that Html5Lib's license is compatible with your intended use case. Some AI tools have restrictive licenses that limit commercial use, redistribution, or derivative works. Using Html5Lib in violation of its license can expose your organization to legal liability.
Best Practices for Using Html5Lib Safely
Whether you're an individual developer or an enterprise team, these practices will help you get the most from Html5Lib while minimizing risk:
Periodically review how Html5Lib is used in your workflow. Check for unexpected behavior, permissions drift, and compliance with your security policies.
Ensure Html5Lib and all its dependencies are running the latest stable versions to benefit from security patches.
Grant Html5Lib only the minimum permissions it needs to function. Avoid granting admin or root access.
Subscribe to Html5Lib's security advisories and vulnerability disclosures. Use Nerq's API to get automated trust score updates.
Create and maintain a clear policy for how Html5Lib is used within your organization, including data handling guidelines and acceptable use cases.
When Should You Avoid Html5Lib?
Even promising tools aren't right for every situation. Consider avoiding Html5Lib in these scenarios:
- Production environments handling sensitive customer data
- Regulated industries (healthcare, finance, government) without additional compliance review
- Mission-critical systems where downtime has significant business impact
For each scenario, evaluate whether Html5Lib's trust score of 52.2/100 meets your organization's risk tolerance. We recommend running a manual security assessment alongside the automated Nerq score.
How Html5Lib Compares to Industry Standards
Nerq indexes over 6 million software tools, apps, and packages across dozens of categories. Among uncategorized tools, the average Trust Score is 62/100. Html5Lib's score of 52.2/100 is near the category average of 62/100.
This places Html5Lib in line with the typical uncategorized tool tool. It meets baseline expectations but does not distinguish itself from peers on trust metrics.
Industry benchmarks matter because they contextualize a tool's safety profile. A score that looks moderate in isolation may actually represent strong performance within a challenging category — or vice versa. Nerq's category-relative analysis helps teams make informed decisions by showing not just absolute quality, but how a tool ranks against its direct peers.
Trust Score History
Nerq continuously monitors Html5Lib and recalculates its Trust Score as new data becomes available. Our scoring engine ingests real-time signals from source repositories, vulnerability databases (NVD, OSV.dev), package registries, and community metrics. When a new CVE is published, a major release ships, or maintenance patterns change, Html5Lib's score is updated within 24 hours.
Historical trust trends reveal whether a tool is improving, stable, or declining over time. A tool that consistently maintains or improves its score demonstrates ongoing commitment to security and quality. Conversely, a downward trend may signal reduced maintenance, growing technical debt, or unresolved vulnerabilities. To track Html5Lib's score over time, use the Nerq API: GET nerq.ai/v1/preflight?target=html5lib&include=history
Nerq retains trust score snapshots at regular intervals, enabling trend analysis across weeks and months. Enterprise users can access detailed historical reports showing how each dimension — security, maintenance, documentation, compliance, and community — has evolved independently, providing granular visibility into which aspects of Html5Lib are strengthening or weakening over time.
Key Takeaways
- Html5Lib has a Trust Score of 52.2/100 (D) and is not yet Nerq Verified.
- Html5Lib shows moderate trust signals. Conduct thorough due diligence before deploying to production environments.
- Among uncategorized tools, Html5Lib scores near the category average of 62/100, suggesting room for improvement relative to peers.
- Always verify safety independently — use Nerq's Preflight API for automated, up-to-date trust checks before integration.
What data does Html5Lib collect?
Privacy assessment for Html5Lib is not yet available. See our methodology for how Nerq measures privacy, or the public privacy review for any community-contributed notes.
Is Html5Lib secure?
Security score: under assessment. Review security practices and consider alternatives with higher security scores for sensitive use cases.
Nerq monitors this entity against NVD, OSV.dev, and registry-specific vulnerability databases for ongoing security assessment.
Full analysis: Html5Lib Security Report
How we calculated this score
Html5Lib's trust score of 52.2/100 (D) is computed from multiple public sources including package registries, GitHub, NVD, OSV.dev, and OpenSSF Scorecard. The score reflects 0 independent dimensions: . Each dimension is weighted equally to produce the composite trust score.
Nerq analyzes over 7.5 million entities across 26 registries using the same methodology, enabling direct cross-entity comparison. Scores are updated continuously as new data becomes available.
This page was last reviewed on May 02, 2026. Data version: 1.0.
Full methodology documentation · Machine-readable data (JSON API)
Frequently Asked Questions
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See Also
Disclaimer: Nerq trust scores are automated assessments based on publicly available signals. They are not endorsements or guarantees. Always conduct your own due diligence.