SimplyScan vs Snyk | Live-App and Code Scanning

Quick answer: SimplyScan’s free URL scan reports supported site-health findings across eight dimensions in about 30 seconds. Snyk offers code, dependency, container, and infrastructure-as-code checks. Compare the inputs and coverage needed for your application; neither tool replaces application-specific review and testing.

By Gabriel CA · Kraftwire Software

Why Look For A Snyk Alternative Free Scanner In 2026?

Snyk offers checks for code, open-source dependencies, containers, and infrastructure-as-code. Compare those inputs with the deployed behavior you need to test. See Snyk’s product overview.

Dependency inputs such as package.json provide a different view from observations of a deployed URL. Review repository and deployment configuration together, including secret handling and backend access controls.

How Does SimplyScan Differ From Snyk?

SimplyScan’s free URL scan accepts a deployed URL and checks eight dimensions in about 30 seconds: security, speed, SEO, AI visibility (AEO), accessibility, GDPR signals, domain health, and email security. It does not require repository access for that scan.

These live figures describe all scanned sites. They do not establish prevalence for an AI-built subgroup, compare development methods, or attribute findings to AI generation.

27% of the 103 live sites SimplyScan has scanned (28 sites) have at least one high or critical security issue.

Review secrets, authentication, and dependencies separately; the aggregate rate does not compare scanner coverage.

When To Evaluate Snyk

• You need source-code or dependency analysis.
• You need container-image or infrastructure-as-code checks.
• You want to integrate supported checks into a development workflow.

When To Use SimplyScan

• You want supported public findings for a deployed Lovable or Bolt.new app.
• You want observations to investigate alongside a Supabase security checklist, rather than verification of every policy.
• You want supported secret-exposure checks, including publicly reachable .env content.
• You want security, SEO, and performance signals in a single report.

Can You Use A Free Scanner For AI-Built Apps?

Review generated code and deployment configuration independently of whether visible features work. Keep privileged credentials out of client code.

Compare each tool’s documented checks and inputs. Review input handling and environment-variable security directly, and test application-specific behavior alongside automated findings.

9% of the 103 live sites SimplyScan has scanned (9 sites) have at least one high-severity web-security issue, such as a missing Content-Security-Policy or HSTS header.

What Security Dimensions Does SimplyScan Cover?

SimplyScan separates supported observations into site-health dimensions. Coverage and individual findings matter more than treating any overall grade as a complete assessment.

Security

Checks supported security signals such as headers, detectable secret exposure, and anonymously readable sensitive backend data. Anonymous URL checks do not verify authenticated cross-user access.

Speed

Checks supported page and asset signals, with field Core Web Vitals when CrUX data is available.

77% of the 103 live sites SimplyScan has scanned (79 sites) have at least one medium-severity speed issue, such as render-blocking scripts or no route-based code splitting.

SEO

Checks for meta tags, canonicals, and structure.

AI Visibility (AEO)

Checks supported crawler-access and structured-content signals. Results do not guarantee indexing, ranking, or citation.

Accessibility

Checks supported accessibility signals; the scan does not establish WCAG compliance.

GDPR/Compliance

Looks for privacy policy links and cookie consent signals.

Domain Health

Checks supported domain and DNS signals.

Email Security

Checks published SPF and DMARC configuration and probes common DKIM selectors. DNS observations do not verify every message’s authentication or guarantee prevention of spoofing.

For those moving beyond a simple scan, use our free tools to debug specific issues like JWTs or CSP headers.

Can a URL Scan Help When Source Access Is Limited?

For platforms such as Bubble or Base44, determine which source, configuration, and test interfaces the project exposes. Select checks for those inputs.

SimplyScan runs bounded checks on supported public behavior. Investigate observable data exposure alongside the Firebase security checklist and owner-run tests; a URL scan does not inspect every rule or act as an authenticated user.

How To Read A Security Scan Report?

SimplyScan reports grades and individual findings. Prioritize findings using severity, affected assets, coverage, and the application’s threat model; a grade alone does not establish exploitability.

Read the evidence and limitations of each finding, including security-header observations, before choosing a remediation.

10% of the 103 live sites SimplyScan has scanned (10 sites) have at least one medium-severity architecture issue, such as a library with a known vulnerability or no rate limiting.

You can learn more in our guide on how to read a scan report.

Should You Use Both Snyk And SimplyScan?

Code-oriented checks and deployed-URL observations can complement each other. Choose coverage according to the application’s requirements.

• Use Snyk Inspect dependency versions and known vulnerabilities; automated checks do not establish that every dependency is safe.
• Use SimplyScan Use SimplyScan after deployment to investigate supported exposed-configuration findings, alongside code review and manual testing.

Pro Monitoring includes Pro scan credits for full reports. See pricing for the allowance associated with your chosen option.

The SimplyScan free scan includes two rescans for checking changes. Pro Monitoring provides scheduled rescans and uptime monitoring with Slack and GitHub integrations.

Why Speed And SEO Matter For Security Tools?

SimplyScan includes speed checks alongside security findings. Investigate performance bottlenecks and denial-of-service risks separately; neither category establishes the cause of the other.

10% of the 103 live sites SimplyScan has scanned (10 sites) have at least one high-severity speed issue, such as render-blocking scripts or no route-based code splitting.

AI visibility (AEO) is a separate SimplyScan dimension. Review crawler access and content signals without treating them as proof of search or business outcomes.

Getting Started With A Free Scan

Run a free SimplyScan URL scan in about 30 seconds with no signup or local installation required. A verified security badge links to a dated scan’s score and eligibility state, subject to the badge criteria. It does not prove the absence of vulnerabilities.

Use the Cursor security guide and repository-scanning guide alongside review of the actual application. A URL report is an additional source of findings, not proof of safety or customer trust.

FAQ

How does SimplyScan complement code-oriented scanners?

SimplyScan offers a free deployed-URL scan with supported findings across eight dimensions. Compare that coverage with the source-code, dependency, container, or infrastructure checks you need. It does not verify every backend policy or replace authenticated application tests.

Does Snyk offer a free version for small projects?

Check Snyk’s current plans for available tiers, limits, and supported products. Select the plan and checks based on the inputs you need to assess.

How does SimplyScan detect exposed API keys?

SimplyScan checks supported public content and fetched assets for recognizable secret patterns, including supported OpenAI, Stripe, and Supabase service-role credentials. It does not observe every browser request or establish how a key entered the bundle. Revoke exposed credentials and review the affected access.

Why should I scan my live URL instead of just my code?

Source and deployed-URL checks expose different evidence. Test configuration and runtime behavior in an appropriate environment as well as reviewing code. A public URL scan does not cover every authenticated operation or establish complete application security.

Is SimplyScan suitable for non-technical founders?

SimplyScan reports grades, findings, and recommendations across eight dimensions. Use the report to organize investigation; interpreting and fixing application-specific problems may require technical review.

What are the 8 dimensions of a SimplyScan report?

The dimensions are security, speed, SEO, AI visibility (AEO), accessibility, GDPR/compliance signals, domain health, and email security. Each covers supported observations; the report does not establish legal compliance or complete vulnerability coverage.

Pro Monitoring costs $24/month.